/* ═══════════════════════════════════════════════════════════════
   NEUROAPRENDIZADO MED — SYNAPSE Theme
   Neural / AI / Synaptic inspired design system
   Dark void background · Neon synapse accents · Animated pulses
   Font: Quicksand (headers) + Plus Jakarta Sans (body) + Space Mono (data)
   ═══════════════════════════════════════════════════════════════ */

/* Self-hosted Quicksand */
@font-face {
  font-family: 'Quicksand';
  src: url('fonts/quicksand/static/Quicksand-Light.ttf') format('truetype');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Quicksand';
  src: url('fonts/quicksand/static/Quicksand-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Quicksand';
  src: url('fonts/quicksand/static/Quicksand-Medium.ttf') format('truetype');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Quicksand';
  src: url('fonts/quicksand/static/Quicksand-SemiBold.ttf') format('truetype');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Quicksand';
  src: url('fonts/quicksand/static/Quicksand-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Space+Mono:wght@400;700&display=swap');

:root {
  /* Neural void */
  --bg-void: #030308;
  --bg-cortex: #0a0b18;
  --bg-neuron: rgba(10, 12, 28, 0.7);
  --bg-neuron-hover: rgba(18, 22, 45, 0.85);

  /* Synapse palette — AI & High Performance */
  --synapse-cyan: #00f0ff;
  /* Intelligence / Focus */
  --synapse-magenta: #e040fb;
  /* Synapse / Creativity */
  --synapse-gold: #ffbe0b;
  /* Success / Peak Performance */
  --synapse-green: #00e676;
  /* Growth / Consolidation */
  --synapse-red: #ff3366;
  /* Alert / Urgency */
  --synapse-blue: #3a86ff;
  /* Calm / Depth */
  --synapse-amber: #ffb300;
  /* Warmth / Focus */

  /* Text layers */
  --text-bright: #ffffff;
  --text-normal: #c5d0e6;
  --text-dim: #7382a6;
  --text-primary: #ffffff;
  --text-secondary: #7382a6;

  /* Borders — soft neon glow */
  --border-synapse: rgba(0, 240, 255, 0.15);
  --border-synapse-hover: rgba(0, 240, 255, 0.4);
  --border-magenta: rgba(224, 64, 251, 0.25);

  /* Sizing */
  --sidebar-w: 260px;
  --radius: 16px;
  --radius-sm: 10px;

  /* Glows */
  --glow-cyan: 0 0 20px rgba(0, 240, 255, 0.2), 0 0 60px rgba(0, 240, 255, 0.1);
  --glow-magenta: 0 0 20px rgba(224, 64, 251, 0.2), 0 0 60px rgba(224, 64, 251, 0.1);
  --glow-gold: 0 0 20px rgba(255, 190, 11, 0.2);

  --transition: 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Neural Network Background Canvas */
canvas#neuralBg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background: var(--bg-void);
  color: var(--text-normal);
  min-height: 100vh;
  overflow-x: hidden;
  /* Enhanced Neural Grid Pattern */
  background-image:
    radial-gradient(circle at 15% 50%, rgba(0, 240, 255, 0.08), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(224, 64, 251, 0.08), transparent 25%),
    radial-gradient(circle at 50% 80%, rgba(58, 134, 255, 0.05), transparent 30%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 30px 30px, 30px 30px;
  background-attachment: fixed;
}

/* ─── LOADING ─── */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-void);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.6s ease;
}

.loading-screen.hidden {
  opacity: 0;
  pointer-events: none;
}

/* Utility — use JS to add/remove this class to show/hide elements */
.hidden {
  display: none !important;
}

.loading-brain {
  font-size: 56px;
  animation: synapsePulse 2s infinite;
  filter: drop-shadow(0 0 20px rgba(0, 240, 255, 0.4));
}

@keyframes synapsePulse {

  0%,
  100% {
    transform: scale(1);
    filter: drop-shadow(0 0 20px rgba(0, 240, 255, 0.4));
  }

  50% {
    transform: scale(1.08);
    filter: drop-shadow(0 0 40px rgba(224, 64, 251, 0.6));
  }
}

/* ═══ SIDEBAR ═══ */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  z-index: 10;
  background: linear-gradient(180deg, var(--bg-cortex) 0%, rgba(8, 9, 22, 0.98) 100%);
  border-right: 1px solid var(--border-synapse);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform var(--transition);
}

.sidebar::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg, var(--synapse-cyan), transparent 40%, var(--synapse-magenta), transparent 80%);
  opacity: 0.3;
}

.sidebar-header {
  padding: 20px 18px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border-synapse);
}

.sidebar-logo {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--synapse-cyan), var(--synapse-magenta));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.2);
}
.sidebar-logo-img {
  width: 36px;
  height: 36px;
  filter: drop-shadow(0 0 10px rgba(0, 240, 255, 0.5));
  transition: filter 0.3s;
}
.sidebar-logo-img:hover {
  filter: drop-shadow(0 0 20px rgba(0, 240, 255, 0.7)) drop-shadow(0 0 40px rgba(224, 64, 251, 0.3));
}

.sidebar-title {
  font-family: 'Quicksand', sans-serif;
  font-weight: 800;
  font-size: 16px;
  background: linear-gradient(90deg, var(--synapse-cyan), var(--synapse-magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-close {
  display: none;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 18px;
  cursor: pointer;
  margin-left: auto;
}

.sidebar-user {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-synapse);
}

.sidebar-user .user-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-user .user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 2px solid var(--synapse-cyan);
}

.sidebar-user .user-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-bright);
}

.sidebar-user .user-email {
  font-size: 11px;
  color: var(--text-dim);
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 10px 8px;
}

/* Scrollbar neural */
.sidebar-nav::-webkit-scrollbar {
  width: 3px;
}

.sidebar-nav::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-nav::-webkit-scrollbar-thumb {
  background: rgba(0, 240, 255, 0.2);
  border-radius: 4px;
}

.nav-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: none;
  background: none;
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 500;
  font-family: 'Plus Jakarta Sans', sans-serif;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  text-align: left;
  position: relative;
}

.nav-item:hover {
  background: rgba(0, 240, 255, 0.05);
  color: var(--text-normal);
}

.nav-item.active {
  background: linear-gradient(90deg, rgba(0, 240, 255, 0.1), transparent);
  color: var(--synapse-cyan);
  border: 1px solid var(--border-synapse-hover);
  border-left: none;
  border-right: none;
  box-shadow: inset 2px 0 10px rgba(0, 240, 255, 0.05);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  border-radius: 0 4px 4px 0;
  background: linear-gradient(180deg, var(--synapse-cyan), var(--synapse-magenta), var(--synapse-cyan));
  background-size: 100% 200%;
  animation: bgScroll 3s linear infinite;
  box-shadow: 0 0 10px var(--synapse-cyan);
}

@keyframes bgScroll {
  0% {
    background-position: 0% 0%;
  }

  100% {
    background-position: 0% 100%;
  }
}

.nav-icon {
  font-size: 18px;
  min-width: 26px;
  text-align: center;
  transition: transform 0.3s;
}

.nav-item:hover .nav-icon {
  transform: scale(1.1);
}

.nav-divider {
  height: 1px;
  background: var(--border-synapse);
  margin: 6px 12px;
}

.sidebar-footer {
  padding: 14px 18px;
  border-top: 1px solid var(--border-synapse);
}

.manage-subscription-btn {
  width: 100%;
  padding: 9px 12px;
  background: rgba(0, 240, 255, 0.06);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: var(--radius-sm);
  color: var(--synapse-cyan);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  font-family: 'Plus Jakarta Sans', sans-serif;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.manage-subscription-btn:hover {
  background: rgba(0, 240, 255, 0.12);
}

.manage-subscription-btn:disabled {
  opacity: 0.6;
  cursor: wait;
}

.logout-btn {
  width: 100%;
  padding: 9px;
  background: rgba(255, 61, 90, 0.06);
  border: 1px solid rgba(255, 61, 90, 0.2);
  border-radius: var(--radius-sm);
  color: var(--synapse-red);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  font-family: 'Plus Jakarta Sans', sans-serif;
  transition: all var(--transition);
}

.logout-btn:hover {
  background: rgba(255, 61, 90, 0.12);
}

/* Hamburger */
.hamburger {
  display: none;
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 101;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--bg-neuron);
  border: 1px solid var(--border-synapse);
  backdrop-filter: blur(12px);
  color: var(--synapse-cyan);
  font-size: 20px;
  cursor: pointer;
  transition: all var(--transition);
}

/* ═══ MAIN CONTENT ═══ */
.main-content {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  padding: 28px 36px;
  max-width: 1180px;
  position: relative;
  z-index: 1;
}

/* ═══ SHARED ═══ */
.page-header {
  margin-bottom: 28px;
}

.page-header h1 {
  font-family: 'Quicksand', sans-serif;
  font-size: 24px;
  font-weight: 800;
  color: var(--text-bright);
  margin-bottom: 6px;
  text-shadow: 0 0 40px rgba(0, 240, 255, 0.15);
}

.page-subtitle {
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.5;
}

/* Glass Neuron Card */
.glass-card {
  background: var(--bg-neuron);
  border: 1px solid var(--border-synapse);
  border-radius: var(--radius);
  padding: 24px;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 0 20px rgba(0, 240, 255, 0.02);
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.5), transparent);
  transform: scaleX(0);
  transition: transform 0.5s ease;
}

.glass-card:hover::before {
  transform: scaleX(1);
}

.glass-card:hover {
  border-color: var(--border-synapse-hover);
  box-shadow: var(--glow-cyan), inset 0 0 30px rgba(0, 240, 255, 0.05);
  transform: translateY(-2px);
}

.glass-card h3 {
  font-family: 'Quicksand', sans-serif;
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text-bright);
  letter-spacing: -0.3px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Stats */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}

.stat-card {
  padding: 18px;
  border-radius: var(--radius);
  text-align: center;
  border: 1px solid var(--border-synapse);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20%;
  right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--synapse-cyan), transparent);
  opacity: 0.3;
}

.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--glow-cyan);
}

.gradient-teal {
  background: linear-gradient(160deg, rgba(0, 240, 255, 0.08) 0%, rgba(0, 240, 255, 0.02) 100%);
  border-color: rgba(0, 240, 255, 0.2);
}

.gradient-blue {
  background: linear-gradient(160deg, rgba(77, 124, 255, 0.08) 0%, transparent 100%);
  border-color: rgba(77, 124, 255, 0.2);
}

.gradient-amber {
  background: linear-gradient(160deg, rgba(255, 179, 0, 0.08) 0%, transparent 100%);
  border-color: rgba(255, 179, 0, 0.2);
}

.gradient-emerald {
  background: linear-gradient(160deg, rgba(57, 255, 143, 0.08) 0%, transparent 100%);
  border-color: rgba(57, 255, 143, 0.2);
}

.stat-icon {
  font-size: 24px;
  margin-bottom: 6px;
}

.stat-value {
  font-family: 'Quicksand', sans-serif;
  font-size: 30px;
  font-weight: 800;
  color: var(--text-bright);
  text-shadow: 0 0 20px rgba(0, 240, 255, 0.15);
}

.stat-label {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Tabs */
.tab-panel {
  display: none;
  animation: neuralFadeIn 0.4s ease;
}

.tab-panel.active {
  display: block;
}

@keyframes neuralFadeIn {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.99);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

/* Badges */
.badge {
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 700;
  font-family: 'Space Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-high {
  background: rgba(57, 255, 143, 0.1);
  color: var(--synapse-green);
  border: 1px solid rgba(57, 255, 143, 0.25);
}

.badge-moderate {
  background: rgba(255, 179, 0, 0.1);
  color: var(--synapse-amber);
  border: 1px solid rgba(255, 179, 0, 0.25);
}

/* Citation */
.citation {
  display: block;
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 10px;
  font-family: 'Space Mono', monospace;
  font-style: normal;
  opacity: 0.7;
}

/* Inputs */
.input {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: rgba(10, 12, 28, 0.6);
  border: 1px solid var(--border-synapse);
  color: var(--text-bright);
  font-size: 14px;
  font-family: 'Space Mono', monospace;
  transition: all var(--transition);
  backdrop-filter: blur(10px);
}

.input:focus {
  outline: none;
  background: rgba(10, 12, 28, 0.9);
  border-color: var(--synapse-magenta);
  box-shadow: 0 0 20px rgba(224, 64, 251, 0.15);
}

.textarea {
  resize: vertical;
  min-height: 120px;
}

.btn-action {
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.1), rgba(224, 64, 251, 0.1));
  border: 1px solid var(--border-synapse-hover);
  color: var(--text-bright);
  font-weight: 800;
  font-size: 14px;
  font-family: 'Quicksand', sans-serif;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: 1px;
  position: relative;
  overflow: hidden;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.btn-action::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.btn-action:hover {
  box-shadow: var(--glow-cyan);
  transform: translateY(-3px);
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.25), rgba(224, 64, 251, 0.25));
  border-color: var(--synapse-cyan);
}

.btn-action:hover::after {
  opacity: 1;
}

.form-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.form-row .input {
  flex: 1;
  min-width: 180px;
}

.empty-state {
  color: var(--text-dim);
  font-size: 13px;
  text-align: center;
  padding: 22px;
}

/* ═══ DASHBOARD ═══ */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 22px;
}

.upcoming-list {
  max-height: 200px;
  overflow-y: auto;
}

.upcoming-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid rgba(0, 240, 255, 0.06);
}

.upcoming-item:last-child {
  border-bottom: none;
}

.upcoming-name {
  font-weight: 500;
  font-size: 13px;
  color: var(--text-normal);
}

.upcoming-date {
  font-size: 11px;
  color: var(--synapse-amber);
  font-family: 'Space Mono', monospace;
}

.neuro-tip {
  border-left: 2px solid transparent;
  border-image: linear-gradient(180deg, var(--synapse-cyan), var(--synapse-magenta)) 1;
}

.neuro-tip p {
  line-height: 1.7;
}

/* ═══ TECHNIQUES ═══ */
.technique-grid {
  display: grid;
  gap: 14px;
}

.technique-card {
  background: var(--bg-neuron);
  border: 1px solid var(--border-synapse);
  border-radius: var(--radius);
  padding: 22px;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.technique-card::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--synapse-cyan), var(--synapse-magenta), var(--synapse-green));
  opacity: 0;
  transition: opacity var(--transition);
}

.technique-card:hover::before {
  opacity: 1;
}

.technique-card:hover {
  border-color: var(--border-synapse-hover);
  box-shadow: var(--glow-cyan);
}

.tc-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 10px;
}

.tc-number {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(224, 64, 251, 0.15));
  border: 1px solid var(--border-synapse-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Quicksand', sans-serif;
  font-size: 16px;
  font-weight: 800;
  color: var(--synapse-cyan);
  flex-shrink: 0;
}

.tc-subtitle {
  font-size: 12px;
  color: var(--text-dim);
  font-family: 'Space Mono', monospace;
}

.tc-description {
  color: var(--text-normal);
  line-height: 1.6;
  font-size: 14px;
}

.tc-details {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease;
  padding-top: 0;
}

.technique-card.expanded .tc-details,
.habit-card.expanded .tc-details,
.supp-card.expanded .tc-details,
.onboarding-tool.expanded .tc-details {
  max-height: 2000px;
  padding-top: 18px;
}

.tc-details h4 {
  font-family: 'Quicksand', sans-serif;
  font-size: 13px;
  font-weight: 700;
  margin: 14px 0 6px;
  color: var(--synapse-cyan);
}

.tc-details ul {
  padding-left: 18px;
}

.tc-details li {
  margin-bottom: 5px;
  color: var(--text-normal);
  line-height: 1.5;
  font-size: 13px;
}

.tc-details li::marker {
  color: var(--synapse-cyan);
}

.tc-details p {
  color: var(--text-normal);
  line-height: 1.6;
  font-size: 13px;
}

/* ═══ PROTOCOLS ═══ */
.protocol-timeline {
  position: relative;
  padding-left: 68px;
}

.protocol-day {
  position: relative;
  margin-bottom: 14px;
}

.day-badge {
  position: absolute;
  left: -68px;
  top: 22px;
  width: 50px;
  height: 28px;
  border-radius: 6px;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.2), rgba(224, 64, 251, 0.15));
  border: 1px solid var(--border-synapse-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Quicksand', sans-serif;
  font-size: 11px;
  font-weight: 800;
  color: var(--synapse-cyan);
}

.day-rest {
  background: linear-gradient(135deg, rgba(57, 255, 143, 0.15), rgba(57, 255, 143, 0.05)) !important;
  color: var(--synapse-green) !important;
}

.card-rest {
  border-color: rgba(57, 255, 143, 0.2) !important;
}

.protocol-block {
  margin-bottom: 10px;
}

.protocol-block strong {
  color: var(--synapse-cyan);
  font-size: 12px;
  font-family: 'Space Mono', monospace;
}

.protocol-block p {
  color: var(--text-normal);
  line-height: 1.6;
  font-size: 13px;
}

.golden-rules {
  padding-left: 18px;
}

.golden-rules li {
  margin-bottom: 6px;
  color: var(--text-normal);
  line-height: 1.5;
}

.golden-rules li::marker {
  color: var(--synapse-green);
}

/* ═══ TIMER ═══ */
.timer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.timer-ring {
  position: relative;
  width: 220px;
  height: 220px;
}

.timer-ring svg {
  transform: rotate(-90deg);
  width: 100%;
  height: 100%;
}

.timer-bg {
  fill: none;
  stroke: rgba(0, 240, 255, 0.06);
  stroke-width: 5;
}

.timer-progress {
  fill: none;
  stroke: url(#timerGrad);
  stroke-width: 5;
  stroke-linecap: round;
  stroke-dasharray: 565.5;
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 1s linear;
  filter: drop-shadow(0 0 8px rgba(0, 240, 255, 0.3));
}

.timer-inner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.timer-display {
  font-family: 'Quicksand', sans-serif;
  font-size: 44px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--text-bright);
  text-shadow: 0 0 30px rgba(0, 240, 255, 0.2);
}

.timer-mode {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--synapse-cyan);
  letter-spacing: 3px;
  margin-top: 4px;
}

.timer-config {
  display: flex;
  gap: 20px;
  margin: 20px 0;
}

.config-group {
  text-align: center;
}

.config-group label {
  font-size: 11px;
  color: var(--text-dim);
  display: block;
  margin-bottom: 5px;
  font-family: 'Space Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.config-group input {
  width: 72px;
  text-align: center;
  padding: 7px;
  background: rgba(8, 10, 30, 0.8);
  border: 1px solid var(--border-synapse);
  border-radius: 6px;
  color: var(--synapse-cyan);
  font-size: 16px;
  font-weight: 700;
  font-family: 'Quicksand', sans-serif;
}

.config-group input:focus {
  outline: none;
  border-color: var(--synapse-cyan);
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.1);
}

.timer-controls {
  display: flex;
  gap: 10px;
}

.timer-btn {
  padding: 11px 24px;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  font-family: 'Quicksand', sans-serif;
}

.timer-btn.primary {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(224, 64, 251, 0.15));
  border: 1px solid var(--border-synapse-hover);
  color: var(--synapse-cyan);
}

.timer-btn.primary:hover {
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

.timer-btn.secondary {
  background: rgba(12, 14, 35, 0.8);
  color: var(--text-dim);
  border: 1px solid var(--border-synapse);
}

.timer-btn.secondary:hover {
  border-color: var(--border-synapse-hover);
  color: var(--text-normal);
}

.timer-alarm-controls {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.timer-btn.alarm-btn {
  background: linear-gradient(135deg, rgba(255, 61, 90, 0.15), rgba(255, 61, 90, 0.05));
  border: 1px solid rgba(255, 61, 90, 0.4);
  color: var(--synapse-red);
  animation: alarmPulse 1s ease-in-out infinite;
}

.timer-btn.alarm-btn:hover {
  background: rgba(255, 61, 90, 0.2);
  box-shadow: 0 0 20px rgba(255, 61, 90, 0.3);
  transform: translateY(-2px);
}

.timer-btn.snooze-btn {
  background: linear-gradient(135deg, rgba(255, 179, 0, 0.12), rgba(255, 179, 0, 0.04));
  border: 1px solid rgba(255, 179, 0, 0.3);
  color: var(--synapse-amber);
}

.timer-btn.snooze-btn:hover {
  background: rgba(255, 179, 0, 0.2);
  box-shadow: 0 0 20px rgba(255, 179, 0, 0.25);
  transform: translateY(-2px);
}

@keyframes alarmPulse {

  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(255, 61, 90, 0);
  }

  50% {
    box-shadow: 0 0 0 6px rgba(255, 61, 90, 0.15);
  }
}

/* ─── Modal Aviso 90 Minutos ─── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 5, 16, 0.85);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9000;
  animation: neuralFadeIn 0.3s ease;
}

.modal-overlay.hidden {
  display: none;
}

.modal-warning {
  background: linear-gradient(160deg, rgba(20, 10, 40, 0.98), rgba(12, 14, 35, 0.98));
  border: 1px solid rgba(255, 61, 90, 0.35);
  border-radius: var(--radius);
  padding: 36px 32px;
  max-width: 480px;
  width: 90%;
  text-align: center;
  box-shadow: 0 0 60px rgba(255, 61, 90, 0.12), 0 0 120px rgba(224, 64, 251, 0.08);
  position: relative;
}

.modal-warning::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--synapse-red), var(--synapse-magenta));
  border-radius: var(--radius) var(--radius) 0 0;
}

.modal-warning-icon {
  font-size: 52px;
  margin-bottom: 16px;
  animation: synapsePulse 2s infinite;
}

.modal-warning h2 {
  font-family: 'Quicksand', sans-serif;
  font-size: 22px;
  font-weight: 800;
  color: var(--synapse-red);
  margin-bottom: 14px;
  text-shadow: 0 0 30px rgba(255, 61, 90, 0.3);
}

.modal-warning p {
  color: var(--text-normal);
  line-height: 1.7;
  font-size: 14px;
  margin-bottom: 10px;
}

.modal-warning strong {
  color: var(--text-bright);
}

.modal-warning-sub {
  color: var(--text-dim) !important;
  font-size: 13px !important;
}

/* ═══ SPACED REPETITION ═══ */
.spaced-alerts {
  margin-top: 14px;
}

.spaced-alert {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255, 179, 0, 0.06);
  border: 1px solid rgba(255, 179, 0, 0.2);
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.spaced-alert-text {
  font-size: 13px;
}

.spaced-topic-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid rgba(0, 240, 255, 0.06);
}

.spaced-topic-item:last-child {
  border-bottom: none;
}

.topic-info h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-bright);
}

.topic-meta {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 2px;
  font-family: 'Space Mono', monospace;
}

.topic-stage {
  display: flex;
  gap: 3px;
  align-items: center;
}

.stage-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.2);
  transition: all var(--transition);
}

.stage-dot.filled {
  background: var(--synapse-cyan);
  border-color: var(--synapse-cyan);
  box-shadow: 0 0 6px rgba(0, 240, 255, 0.4);
}

.topic-actions {
  display: flex;
  gap: 6px;
}

.btn-review,
.btn-delete {
  padding: 5px 12px;
  border-radius: 6px;
  border: none;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  font-family: 'Quicksand', sans-serif;
}

.btn-review {
  background: rgba(0, 240, 255, 0.08);
  color: var(--synapse-cyan);
  border: 1px solid rgba(0, 240, 255, 0.2);
}

.btn-review:hover {
  background: rgba(0, 240, 255, 0.15);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.1);
}

.btn-delete {
  background: rgba(255, 61, 90, 0.06);
  color: rgba(255, 61, 90, 0.6);
  border: 1px solid rgba(255, 61, 90, 0.15);
}

.btn-delete:hover {
  background: rgba(255, 61, 90, 0.12);
  color: var(--synapse-red);
}

.intervals-visual {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.interval-step {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-normal);
}

.interval-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c);
  flex-shrink: 0;
  box-shadow: 0 0 8px var(--c);
}

/* ═══ DIARY ═══ */
.diary-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mood-selector {
  display: flex;
  gap: 6px;
}

.mood-btn {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--border-synapse);
  background: none;
  font-size: 20px;
  cursor: pointer;
  transition: all var(--transition);
}

.mood-btn.active {
  border-color: var(--synapse-cyan);
  background: rgba(0, 240, 255, 0.08);
  transform: scale(1.1);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.1);
}

.mood-btn:hover {
  border-color: var(--border-synapse-hover);
}

.diary-entry-card {
  padding: 14px;
  border-bottom: 1px solid rgba(0, 240, 255, 0.06);
}

.diary-entry-card:last-child {
  border-bottom: none;
}

.diary-entry-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.diary-date {
  font-weight: 600;
  color: var(--synapse-cyan);
  font-family: 'Space Mono', monospace;
  font-size: 13px;
}

.diary-mood {
  font-size: 18px;
}

.diary-content {
  color: var(--text-normal);
  line-height: 1.6;
  font-size: 13px;
}

.diary-meta {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 6px;
  font-family: 'Space Mono', monospace;
}

.diary-delete {
  background: none;
  border: none;
  color: var(--synapse-red);
  cursor: pointer;
  font-size: 11px;
  opacity: 0.5;
  font-family: 'Space Mono', monospace;
}

.diary-delete:hover {
  opacity: 1;
}

/* ═══ HABITS ═══ */
.habit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 14px;
}

.habit-card {
  cursor: pointer;
}

.habit-icon {
  font-size: 32px;
  margin-bottom: 10px;
  filter: drop-shadow(0 0 10px rgba(0, 240, 255, 0.2));
}

/* ═══ SUPPLEMENTS ═══ */
.supplement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 14px;
}

.supp-card {
  cursor: pointer;
}

.supp-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.supp-header h3 {
  font-size: 15px;
}

.warning-card {
  border-color: rgba(255, 179, 0, 0.2) !important;
  border-left: 2px solid transparent;
  border-image: linear-gradient(180deg, var(--synapse-amber), var(--synapse-red)) 1;
}

.warning-card ul {
  padding-left: 18px;
}

.warning-card li {
  margin-bottom: 6px;
  color: var(--text-normal);
  line-height: 1.5;
}

/* ═══ MYTHS ═══ */
.myths-container {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.myth-section h3 {
  font-family: 'Quicksand', sans-serif;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-bright);
}

.myth-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.myth-card,
.fact-card {
  padding: 18px;
  border-radius: var(--radius);
  line-height: 1.6;
  font-size: 13px;
}

.myth-card {
  background: rgba(255, 61, 90, 0.04);
  border: 1px solid rgba(255, 61, 90, 0.15);
  color: var(--text-normal);
}

.fact-card {
  background: rgba(57, 255, 143, 0.04);
  border: 1px solid rgba(57, 255, 143, 0.15);
  color: var(--text-normal);
}

.myth-label {
  font-family: 'Space Mono', monospace;
  font-weight: 800;
  color: var(--synapse-red);
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: 1px;
}

.fact-label {
  font-family: 'Space Mono', monospace;
  font-weight: 800;
  color: var(--synapse-green);
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: 1px;
}

/* ═══ SCIENCE ═══ */
.ref-list {
  list-style: none;
  padding: 0;
}

.ref-list li {
  padding: 8px 0;
  border-bottom: 1px solid rgba(0, 240, 255, 0.06);
  color: var(--text-normal);
  font-size: 13px;
  line-height: 1.5;
}

.ref-list li:last-child {
  border-bottom: none;
}

.ref-list strong {
  color: var(--text-bright);
}

.ref-list em {
  color: var(--synapse-cyan);
  font-style: normal;
}

.mech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.mech-card {
  padding: 18px;
  border-radius: var(--radius-sm);
  background: rgba(12, 14, 35, 0.6);
  border: 1px solid var(--border-synapse);
  position: relative;
}

.mech-card::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 20%;
  right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--synapse-cyan), transparent);
  opacity: 0.3;
}

.mech-card h4 {
  font-family: 'Quicksand', sans-serif;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--synapse-cyan);
  font-size: 13px;
}

.mech-card ul {
  padding-left: 14px;
}

.mech-card li {
  margin-bottom: 3px;
  color: var(--text-normal);
  font-size: 12px;
}

.mech-card li::marker {
  color: var(--synapse-cyan);
}

.links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}

.link-card {
  display: block;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  background: rgba(12, 14, 35, 0.6);
  border: 1px solid var(--border-synapse);
  color: var(--synapse-cyan);
  font-weight: 700;
  font-size: 13px;
  font-family: 'Quicksand', sans-serif;
  text-decoration: none;
  text-align: center;
  transition: all var(--transition);
}

.link-card:hover {
  border-color: var(--border-synapse-hover);
  transform: translateY(-2px);
  box-shadow: var(--glow-cyan);
}

/* ═══ RESPONSIVE ═══ */
@media(max-width:768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-close {
    display: block;
  }

  .hamburger {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .main-content {
    margin-left: 0;
    padding: 72px 16px 28px;
  }

  .stats-row {
    grid-template-columns: 1fr 1fr;
  }

  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .myth-grid {
    grid-template-columns: 1fr;
  }

  .protocol-timeline {
    padding-left: 0;
  }

  .day-badge {
    position: static;
    margin-bottom: 6px;
    display: inline-flex;
  }

  .timer-display {
    font-size: 34px;
  }

  .timer-ring {
    width: 180px;
    height: 180px;
  }

  .habit-grid,
  .supplement-grid {
    grid-template-columns: 1fr;
  }

  .page-header h1 {
    font-size: 20px;
  }
}

@media(max-width:480px) {
  .stats-row {
    grid-template-columns: 1fr;
  }

  .form-row {
    flex-direction: column;
  }

  .form-row .input {
    min-width: auto;
  }
}
/* --- COOKIE CONSENT BANNER --- */
.cookie-consent-banner {
  position: fixed;
  bottom: 24px;
  left: 24px;
  right: 24px;
  max-width: 800px;
  margin: 0 auto;
  background: var(--bg-neuron);
  border: 1px solid var(--border-synapse);
  border-radius: var(--radius);
  padding: 24px;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  box-shadow: var(--glow-cyan), inset 0 0 20px rgba(0, 240, 255, 0.05);
  z-index: 10000;
  transform: translateY(150%);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.cookie-consent-banner.visible {
  transform: translateY(0);
  opacity: 1;
}

.cookie-content {
  display: flex;
  align-items: center;
  gap: 16px;
}

.cookie-icon {
  font-size: 32px;
  filter: drop-shadow(0 0 10px rgba(255, 190, 11, 0.4));
}

.cookie-text strong {
  display: block;
  font-family: 'Quicksand', sans-serif;
  font-size: 16px;
  color: var(--text-bright);
  margin-bottom: 6px;
}

.cookie-text p {
  font-size: 12px;
  color: var(--text-normal);
  line-height: 1.5;
  margin: 0;
}

.cookie-actions {
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .cookie-consent-banner {
    flex-direction: column;
    align-items: stretch;
    bottom: 0;
    left: 0;
    right: 0;
    border-radius: var(--radius) var(--radius) 0 0;
    max-width: 100%;
    padding: 20px;
  }
}

/* ═══════════════════════════════════════════════════════════════
   SUGESTÕES — User Suggestions List
   ═══════════════════════════════════════════════════════════════ */
.suggestion-item {
  padding: 16px;
  border-left: 3px solid var(--synapse-cyan);
  margin-bottom: 12px;
  background: var(--bg-neuron);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  transition: var(--transition);
}
.suggestion-item:hover {
  background: var(--bg-neuron-hover);
  border-left-color: var(--synapse-magenta);
}
.suggestion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  gap: 12px;
}
.suggestion-header strong {
  color: var(--text-bright);
}
.suggestion-status {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(0, 240, 255, 0.1);
  color: var(--synapse-cyan);
  white-space: nowrap;
}
.suggestion-desc {
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: 8px;
}
.suggestion-date {
  color: var(--text-dim);
  font-size: 12px;
  font-family: 'Space Mono', monospace;
}

/* ═══════════════════════════════════════════════════════════════
   NEURO-ARCHITECT GREETING MODAL
   ═══════════════════════════════════════════════════════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 3, 8, 0.92);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  animation: fadeIn 0.4s ease;
}
.modal-overlay.hidden {
  display: none;
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.neuro-greeting {
  background: linear-gradient(145deg, var(--bg-cortex), var(--bg-void));
  border: 1px solid var(--border-synapse);
  border-radius: var(--radius);
  padding: 40px;
  max-width: 480px;
  width: 90%;
  text-align: center;
  box-shadow: var(--glow-cyan);
  animation: greetSlideUp 0.5s ease;
}
@keyframes greetSlideUp {
  from { transform: translateY(30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.greeting-brain-icon {
  font-size: 48px;
  margin-bottom: 12px;
  animation: greetPulse 2s ease infinite;
}
@keyframes greetPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}
.greeting-title {
  font-family: 'Quicksand', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 8px;
}
.greeting-subtitle {
  color: var(--synapse-cyan);
  font-size: 14px;
  margin-bottom: 28px;
}
.greeting-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}
.greeting-option {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-synapse);
  background: var(--bg-neuron);
  cursor: pointer;
  transition: var(--transition);
  text-align: left;
}
.greeting-option:hover {
  border-color: var(--synapse-cyan);
  background: var(--bg-neuron-hover);
  box-shadow: var(--glow-cyan);
  transform: translateX(4px);
}
.option-icon {
  font-size: 28px;
  flex-shrink: 0;
}
.option-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.option-label {
  font-weight: 700;
  font-family: 'Quicksand', sans-serif;
  color: var(--text-bright);
  font-size: 16px;
}
.option-desc {
  color: var(--text-dim);
  font-size: 13px;
}
.greeting-skip {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 13px;
  padding: 8px;
  transition: color 0.2s;
}
.greeting-skip:hover {
  color: var(--text-bright);
}

/* ═══════════════════════════════════════════════════════════════
   FSRS — Rating Buttons & Retrievability Bar
   ═══════════════════════════════════════════════════════════════ */
.rating-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}
.btn-rating {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border-synapse);
  background: var(--bg-neuron);
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}
.btn-rating:hover {
  transform: scale(1.15);
}
.btn-again:hover { box-shadow: 0 0 12px var(--synapse-red); background: rgba(255, 51, 102, 0.15); }
.btn-hard:hover { box-shadow: 0 0 12px #ff8c00; background: rgba(255, 140, 0, 0.15); }
.btn-good:hover { box-shadow: 0 0 12px var(--synapse-green); background: rgba(0, 230, 118, 0.15); }
.btn-easy:hover { box-shadow: 0 0 12px var(--synapse-cyan); background: rgba(0, 240, 255, 0.15); }

.retrievability-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
}
.r-track {
  flex: 1;
  height: 6px;
  background: var(--bg-neuron-hover);
  border-radius: 3px;
  overflow: hidden;
}
.r-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.5s ease;
}
.r-fill.r-high { background: var(--synapse-green); }
.r-fill.r-mid { background: var(--synapse-gold); }
.r-fill.r-low { background: var(--synapse-red); }
.r-label {
  font-size: 11px;
  font-family: 'Space Mono', monospace;
  color: var(--text-dim);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════════════
   NEURO-TOOLS — Focus Engineering Toolkit
   ═══════════════════════════════════════════════════════════════ */
.neuro-tool-card .tool-body {
  display: none;
  margin-top: 16px;
}
.neuro-tool-card.expanded .tool-body {
  display: block;
}
.neuro-tool-card.expanded .toggle-arrow {
  transform: rotate(90deg);
}
.tool-toggle {
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}
.toggle-arrow {
  transition: transform 0.2s;
  color: var(--text-dim);
}
.tool-science {
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 16px;
  padding: 12px;
  border-left: 2px solid var(--synapse-magenta);
  background: rgba(224, 64, 251, 0.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.tool-science strong {
  color: var(--synapse-cyan);
}
.tool-timer {
  margin-top: 12px;
  font-family: 'Space Mono', monospace;
  color: var(--synapse-cyan);
  font-size: 18px;
  text-align: center;
  min-height: 24px;
}

/* Anchor Target */
.anchor-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px 0;
}
.anchor-target {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--synapse-cyan);
  transition: all 0.5s;
}
.anchor-target.active {
  width: 24px;
  height: 24px;
  box-shadow: 0 0 40px var(--synapse-cyan), 0 0 80px rgba(0, 240, 255, 0.3);
  animation: anchorPulse 2s ease-in-out infinite;
}
@keyframes anchorPulse {
  0%, 100% { box-shadow: 0 0 20px var(--synapse-cyan), 0 0 40px rgba(0, 240, 255, 0.2); }
  50% { box-shadow: 0 0 60px var(--synapse-cyan), 0 0 100px rgba(0, 240, 255, 0.4); }
}

/* Noise Controls */
.noise-controls {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}
.volume-control {
  display: flex;
  align-items: center;
  gap: 8px;
}
.volume-label {
  font-size: 16px;
}
.noise-controls input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: var(--border-synapse);
  border-radius: 3px;
  outline: none;
  width: 120px;
}
.noise-controls input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--synapse-cyan);
  cursor: pointer;
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.4);
}

/* Breathing Visual */
.breathing-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 0;
}
.breathing-visual {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid var(--synapse-magenta);
  transition: transform 0.8s ease-in-out, box-shadow 0.8s;
  box-shadow: 0 0 20px rgba(224, 64, 251, 0.2);
}
.breathing-visual.inhale {
  transform: scale(1.6);
  border-color: var(--synapse-cyan);
  box-shadow: 0 0 40px rgba(0, 240, 255, 0.4);
}
.breathing-visual.exhale {
  transform: scale(1);
  border-color: var(--synapse-magenta);
  box-shadow: 0 0 20px rgba(224, 64, 251, 0.2);
}
.breathing-visual.hold {
  border-color: var(--synapse-gold);
  box-shadow: 0 0 30px rgba(255, 190, 11, 0.3);
  animation: holdPulse 1s infinite;
}
@keyframes holdPulse {
  0%, 100% { transform: scale(1.3); }
  50% { transform: scale(1.35); }
}
.breath-label {
  margin-top: 16px;
  font-size: 18px;
  font-weight: 700;
  font-family: 'Quicksand', sans-serif;
  letter-spacing: 2px;
  text-align: center;
  min-height: 28px;
}

/* NSDR */
.nsdr-controls {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}
.nsdr-guide {
  text-align: center;
  font-size: 16px;
  font-weight: 600;
  margin-top: 12px;
  min-height: 24px;
}

/* Stroop Game */
.stroop-game {
  min-height: 140px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px 0;
}
.stroop-word {
  font-family: 'Quicksand', sans-serif;
  font-weight: 700;
  letter-spacing: 3px;
}
.stroop-options {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 16px;
}
.stroop-option {
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 2px solid transparent;
  font-size: 14px;
  font-weight: 700;
  transition: transform 0.15s, box-shadow 0.15s;
}
.stroop-option:hover {
  transform: scale(1.05);
  box-shadow: var(--glow-cyan);
}

/* N-Back Game */
.nback-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
}
.nback-game {
  display: grid;
  grid-template-columns: repeat(3, 64px);
  gap: 8px;
}
.nback-cell {
  width: 64px;
  height: 64px;
  background: var(--bg-neuron);
  border: 1px solid var(--border-synapse);
  border-radius: var(--radius-sm);
  transition: background 0.2s, box-shadow 0.2s;
}
.nback-cell.active {
  background: var(--synapse-cyan);
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.5);
}
.nback-letter {
  font-size: 48px;
  font-weight: 700;
  font-family: 'Space Mono', monospace;
  color: var(--synapse-magenta);
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.nback-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 12px;
}
.btn-nback {
  min-width: 140px;
}
.btn-nback.btn-correct {
  box-shadow: 0 0 15px var(--synapse-green);
  border-color: var(--synapse-green);
}
.btn-nback.btn-wrong {
  box-shadow: 0 0 15px var(--synapse-red);
  border-color: var(--synapse-red);
}

/* Fatigue Monitor */
.fatigue-display {
  text-align: center;
  padding: 16px 0;
}
.fatigue-bar {
  height: 10px;
  border-radius: 5px;
  background: var(--bg-neuron-hover);
  overflow: hidden;
  margin: 16px 0;
}
.fatigue-fill {
  height: 100%;
  border-radius: 5px;
  transition: width 0.8s ease, background 0.5s;
  width: 0%;
}
.fatigue-status {
  font-size: 18px;
  font-weight: 700;
  font-family: 'Quicksand', sans-serif;
  margin-bottom: 8px;
}
.fatigue-recommendation {
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.5;
}

/* N-Back Feedback */
.nback-feedback { text-align: center; min-height: 24px; font-size: 14px; font-weight: 600; margin-top: 8px; }
.nback-cell.correct { background: var(--synapse-green) !important; box-shadow: 0 0 20px var(--synapse-green); }
.nback-cell.wrong { background: #ff8c00 !important; box-shadow: 0 0 20px #ff8c00; }
.nback-cell.missed { border: 2px solid var(--synapse-red); }
.nback-cell.hint { border: 2px dashed var(--synapse-gold); animation: hintPulse 0.8s ease-in-out infinite; }
@keyframes hintPulse { 0%,100% { border-color: var(--synapse-gold); } 50% { border-color: transparent; } }
.nback-shortcut { font-size: 11px; color: var(--text-dim); font-family: 'Space Mono', monospace; margin-right: 4px; }

/* N-Back Evolution — Tutorial */
.nback-tutorial-overlay {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.85); z-index: 9999;
    display: flex; align-items: center; justify-content: center;
    padding: 20px;
}
.nback-tutorial-content {
    background: var(--glass-bg, #0f1729); border: 1px solid var(--synapse-cyan);
    border-radius: 16px; padding: 28px; max-width: 480px; width: 100%;
    max-height: 90vh; overflow-y: auto;
}
.nback-tutorial-content h3 { color: var(--synapse-cyan); text-align: center; margin-bottom: 16px; font-size: 20px; }
.nback-tutorial-step { display: none; }
.nback-tutorial-step.active { display: block; animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.nback-tutorial-icon { font-size: 40px; text-align: center; margin-bottom: 8px; }
.nback-tutorial-step h4 { color: var(--synapse-gold); margin-bottom: 8px; font-size: 16px; }
.nback-tutorial-step p { color: var(--text-dim); font-size: 14px; line-height: 1.6; margin-bottom: 8px; }
.nback-tutorial-demo { background: rgba(0,240,255,0.04); border-radius: 8px; padding: 12px; margin-top: 12px; }
.nback-tutorial-demo-row { display: flex; align-items: center; justify-content: center; gap: 8px; flex-wrap: wrap; }
.nback-mini-grid { display: grid; grid-template-columns: repeat(3,28px); gap: 3px; }
.mini-cell { width: 28px; height: 28px; background: rgba(255,255,255,0.06); border-radius: 4px; border: 1px solid rgba(255,255,255,0.1); }
.mini-cell.active { background: var(--synapse-cyan); box-shadow: 0 0 8px var(--synapse-cyan); }
.mini-cell.match { background: var(--synapse-green); box-shadow: 0 0 8px var(--synapse-green); border: 2px solid #fff; }
.tutorial-arrow { color: var(--text-dim); font-size: 20px; }
.tutorial-caption { text-align: center; margin-top: 8px; font-weight: 600; color: var(--synapse-green) !important; }
.nback-tutorial-controls { display: flex; flex-direction: column; gap: 6px; margin: 8px 0; }
.nback-tutorial-controls div { display: flex; align-items: center; gap: 6px; color: var(--text-bright); font-size: 14px; }
.nback-tutorial-nav { display: flex; align-items: center; justify-content: space-between; margin-top: 20px; gap: 12px; }
.tutorial-dots { display: flex; gap: 6px; }
.tutorial-dots .dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,0.2); }
.tutorial-dots .dot.active { background: var(--synapse-cyan); }

/* N-Back Evolution — Header Bar */
.nback-header-bar { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; padding: 8px 12px; background: rgba(0,240,255,0.04); border-radius: 10px; border: 1px solid rgba(0,240,255,0.1); }
.nback-mode-badge { font-size: 12px; color: var(--synapse-gold); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; flex: 1; }
.nback-settings-btn { background: none; border: 1px solid rgba(255,255,255,0.15); color: var(--text-dim); font-size: 18px; cursor: pointer; padding: 4px 10px; border-radius: 6px; transition: var(--transition); }
.nback-settings-btn:hover { color: var(--synapse-cyan); border-color: var(--synapse-cyan); }

/* N-Back Evolution — Settings Panel */
.nback-settings-panel { display: none; background: rgba(0,0,0,0.3); border: 1px solid rgba(0,240,255,0.1); border-radius: 10px; padding: 16px; margin-bottom: 12px; }
.nback-settings-panel.open { display: block; animation: fadeIn 0.2s ease; }
.nback-settings-panel h4 { color: var(--synapse-cyan); margin-bottom: 12px; font-size: 14px; }
.nback-settings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.nback-setting label { font-size: 11px; color: var(--text-dim); display: block; margin-bottom: 4px; }
.nback-setting select { width: 100%; }
.nback-toggle-row { grid-column: 1/-1; display: flex; gap: 16px; }
.nback-toggle-row label { font-size: 13px; color: var(--text-bright); display: flex; align-items: center; gap: 6px; cursor: pointer; }

/* N-Back Evolution — Progress Bar */
.nback-progress-bar { width: 100%; height: 4px; background: rgba(255,255,255,0.06); border-radius: 2px; margin-bottom: 8px; overflow: hidden; }
.nback-prog-fill { height: 100%; background: linear-gradient(90deg, var(--synapse-cyan), var(--synapse-green)); border-radius: 2px; transition: width 0.3s ease; width: 0%; }

/* N-Back Evolution — Results */
.nback-result { text-align: center; padding: 12px; }
.nback-result-main { font-size: 28px; font-weight: 700; color: var(--synapse-cyan); font-family: 'Orbitron', sans-serif; }
.nback-result-detail { font-size: 13px; color: var(--text-dim); margin-top: 6px; }
.nback-result-dprime { font-size: 14px; margin-top: 8px; color: var(--text-bright); }
.nback-result-adapt { font-size: 14px; margin-top: 6px; font-weight: 600; }

/* N-Back Instructions & Level Display */
.nback-instructions {
  background: rgba(0, 240, 255, 0.05);
  border: 1px solid var(--border-synapse);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 16px;
}
.nback-instructions h4 {
  color: var(--synapse-cyan);
  margin-bottom: 10px;
  font-size: 14px;
}
.nback-instruction-grid {
  display: flex;
  gap: 24px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.nback-instr-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-normal);
}
.nback-instr-key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  background: var(--bg-neuron-hover);
  border: 1px solid var(--border-synapse);
  border-radius: 6px;
  font-family: 'Space Mono', monospace;
  font-weight: 700;
  font-size: 14px;
  color: var(--synapse-cyan);
  padding: 0 8px;
}
.nback-instr-tip {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.5;
}
.nback-current-level {
  text-align: center;
  margin: 16px 0;
}
.nback-level-number {
  font-size: 64px;
  font-weight: 800;
  font-family: 'Quicksand', sans-serif;
  color: var(--synapse-cyan);
  line-height: 1;
  text-shadow: 0 0 30px rgba(0, 240, 255, 0.4);
}
.nback-level-label {
  font-size: 24px;
  font-weight: 700;
  font-family: 'Quicksand', sans-serif;
  color: var(--text-dim);
}

/* Go/No-Go */
.gonogo-area { display: flex; justify-content: center; align-items: center; min-height: 180px; cursor: pointer; }
.gonogo-circle { width: 120px; height: 120px; border-radius: 50%; transition: all 0.15s; opacity: 0; }
.gonogo-circle.go { background: var(--synapse-green); opacity: 1; box-shadow: 0 0 40px var(--synapse-green); cursor: pointer; }
.gonogo-circle.nogo { background: var(--synapse-red); opacity: 1; box-shadow: 0 0 40px var(--synapse-red); cursor: not-allowed; }
.gonogo-circle.flash-correct { animation: gonogoFlash 0.3s; }
.gonogo-circle.flash-wrong { animation: gonogoFlashRed 0.3s; }
@keyframes gonogoFlash { 0%,100% { transform: scale(1); } 50% { transform: scale(1.2); box-shadow: 0 0 60px var(--synapse-green); } }
@keyframes gonogoFlashRed { 0%,100% { transform: scale(1); } 50% { transform: scale(1.2); box-shadow: 0 0 60px var(--synapse-red); } }

/* PVT */
.pvt-area { display: flex; justify-content: center; align-items: center; min-height: 180px; cursor: pointer; border-radius: var(--radius-sm); background: var(--bg-neuron); border: 2px dashed var(--border-synapse); transition: border-color 0.2s; }
.pvt-area.active { border-color: var(--synapse-cyan); cursor: pointer; }
.pvt-display { font-family: 'Space Mono', monospace; font-size: 48px; font-weight: 700; color: var(--synapse-cyan); }
.pvt-display.waiting { color: var(--text-dim); font-size: 18px; }
.pvt-display.stimulus { color: var(--synapse-green); animation: pvtPulse 0.5s infinite; }
@keyframes pvtPulse { 0%,100% { opacity: 1; } 50% { opacity: 0.7; } }

/* Responsive Neuro-Tools */
@media (max-width: 768px) {
  .nback-game {
    grid-template-columns: repeat(3, 52px);
  }
  .nback-cell {
    width: 52px;
    height: 52px;
  }
  .stroop-options {
    gap: 6px;
  }
  .stroop-option {
    padding: 8px 12px;
    font-size: 12px;
  }
  .noise-controls {
    flex-direction: column;
    align-items: stretch;
  }
}

/* ═══════════════════════════════════════════════════════════════
   PHASE 2 — Dashboard Charts
   ═══════════════════════════════════════════════════════════════ */
.dashboard-charts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 24px;
}
.chart-card {
  min-height: 280px;
}
.chart-card canvas {
  max-height: 260px;
}
.chart-card-wide {
  grid-column: 1 / -1;
  min-height: 200px;
}
.export-section h3 {
  margin-bottom: 8px;
}
@media (max-width: 768px) {
  .dashboard-charts {
    grid-template-columns: 1fr;
  }
}

/* ═══════════════════════════════════════════════════════════════
   PHASE 2 — Streak Heatmap
   ═══════════════════════════════════════════════════════════════ */
.streak-heatmap {
  position: relative;
  overflow-x: auto;
  padding: 24px 0 8px 36px;
}
.heatmap-grid {
  display: grid;
  grid-template-rows: repeat(7, 14px);
  grid-auto-flow: column;
  gap: 3px;
}
.heatmap-cell {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  background: rgba(0, 240, 255, 0.05);
  cursor: pointer;
  transition: transform 0.1s;
}
.heatmap-cell:hover {
  transform: scale(1.4);
}
.heatmap-day-labels {
  position: absolute;
  left: 0;
  top: 24px;
  display: grid;
  grid-template-rows: repeat(7, 14px);
  gap: 3px;
  font-size: 10px;
  color: var(--text-dim);
}
.heatmap-month-labels {
  display: flex;
  gap: 0;
  font-size: 10px;
  color: var(--text-dim);
  margin-bottom: 4px;
  padding-left: 36px;
}
.heatmap-tooltip {
  position: fixed;
  background: var(--bg-cortex);
  border: 1px solid var(--border-synapse);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 12px;
  color: var(--text-bright);
  pointer-events: none;
  z-index: 100;
  display: none;
}

/* ═══════════════════════════════════════════════════════════════
   PHASE 2 — Study Planner
   ═══════════════════════════════════════════════════════════════ */
.planner-layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 24px;
}
.planner-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.planner-stat-card {
  background: var(--bg-neuron);
  border: 1px solid var(--border-synapse);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
}
.planner-stat-value {
  font-size: 24px;
  font-weight: 700;
  font-family: 'Space Mono', monospace;
  color: var(--synapse-cyan);
}
.planner-stat-label {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 4px;
}
.subject-card {
  padding: 16px;
  margin-bottom: 12px;
  border-radius: var(--radius-sm);
  background: var(--bg-neuron);
  cursor: pointer;
  transition: var(--transition);
  border-left: 4px solid var(--synapse-blue);
}
.subject-card:hover, .subject-card.active {
  background: var(--bg-neuron-hover);
  box-shadow: var(--glow-cyan);
}
.subject-card h4 {
  color: var(--text-bright);
  margin-bottom: 4px;
}
.subject-meta {
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.subject-progress {
  height: 6px;
  background: var(--bg-neuron-hover);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 8px;
}
.subject-progress-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.5s;
}
.topic-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  margin-bottom: 8px;
  border-radius: var(--radius-sm);
  background: var(--bg-neuron);
  transition: var(--transition);
}
.topic-item:hover {
  background: var(--bg-neuron-hover);
}
.topic-item.completed {
  opacity: 0.6;
}
.topic-item.completed .topic-name {
  text-decoration: line-through;
}
.topic-checkbox {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--synapse-cyan);
}
.topic-name {
  flex: 1;
  color: var(--text-bright);
}
.topic-meta-info {
  font-size: 12px;
  color: var(--text-dim);
}
.topic-delete {
  background: none;
  border: none;
  color: var(--synapse-red);
  cursor: pointer;
  font-size: 16px;
  opacity: 0.5;
  transition: opacity 0.2s;
}
.topic-delete:hover {
  opacity: 1;
}
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-dim);
  white-space: nowrap;
  cursor: pointer;
}
@media (max-width: 768px) {
  .planner-layout {
    grid-template-columns: 1fr;
  }
  .planner-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ═══════════════════════════════════════════════════════════════
   PHASE 2 — Achievements & XP
   ═══════════════════════════════════════════════════════════════ */
.xp-level-display {
  text-align: center;
  padding: 16px 0;
}
.xp-level-icon {
  font-size: 48px;
  margin-bottom: 8px;
}
.xp-level-title {
  font-size: 22px;
  font-weight: 700;
  font-family: 'Quicksand', sans-serif;
  color: var(--text-bright);
}
.xp-bar-container {
  margin: 16px 0;
}
.xp-bar-track {
  height: 12px;
  background: var(--bg-neuron-hover);
  border-radius: 6px;
  overflow: hidden;
}
.xp-bar-fill {
  height: 100%;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--synapse-cyan), var(--synapse-magenta));
  transition: width 0.8s ease;
}
.xp-bar-labels {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 4px;
  font-family: 'Space Mono', monospace;
}
.xp-total {
  text-align: center;
  font-size: 14px;
  color: var(--text-dim);
}
.achievement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 16px;
}
.achievement-card {
  padding: 16px;
  border-radius: var(--radius-sm);
  background: var(--bg-neuron);
  border: 1px solid var(--border-synapse);
  text-align: center;
  transition: var(--transition);
}
.achievement-card.earned {
  border-color: var(--synapse-gold);
  box-shadow: var(--glow-gold);
}
.achievement-card.locked {
  filter: grayscale(0.8);
  opacity: 0.5;
}
.achievement-icon {
  font-size: 32px;
  margin-bottom: 8px;
}
.achievement-name {
  font-weight: 700;
  font-family: 'Quicksand', sans-serif;
  color: var(--text-bright);
  font-size: 14px;
  margin-bottom: 4px;
}
.achievement-desc {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.4;
}
.achievement-xp {
  font-size: 11px;
  color: var(--synapse-gold);
  font-family: 'Space Mono', monospace;
  margin-top: 8px;
}
.sidebar-level {
  text-align: center;
  padding: 4px 12px 8px;
  font-size: 12px;
  color: var(--synapse-gold);
}

/* ═══════════════════════════════════════════════════════════════
   PHASE 2 — Rankings / Leaderboard
   ═══════════════════════════════════════════════════════════════ */
.ranking-table {
  width: 100%;
  border-collapse: collapse;
}
.ranking-table th {
  text-align: left;
  padding: 10px 12px;
  font-size: 12px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border-synapse);
  font-family: 'Space Mono', monospace;
}
.ranking-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(0, 240, 255, 0.05);
  font-size: 14px;
}
.ranking-row.current-user {
  background: rgba(0, 240, 255, 0.08);
  border-left: 3px solid var(--synapse-cyan);
}
.ranking-rank {
  font-weight: 700;
  font-family: 'Space Mono', monospace;
  width: 50px;
}
.ranking-medal {
  font-size: 18px;
}
.ranking-anonymous {
  color: var(--text-dim);
  font-style: italic;
}

/* ═══════════════════════════════════════════════════════════════
   PHASE 2 — XP Popup Animation
   ═══════════════════════════════════════════════════════════════ */
.xp-popup-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  pointer-events: none;
}
.xp-popup {
  color: var(--synapse-gold);
  font-family: 'Space Mono', monospace;
  font-weight: 700;
  font-size: 16px;
  padding: 8px 16px;
  background: rgba(10, 12, 28, 0.9);
  border: 1px solid var(--synapse-gold);
  border-radius: var(--radius-sm);
  animation: xpFloat 2s ease-out forwards;
  margin-bottom: 8px;
}
@keyframes xpFloat {
  0% { opacity: 1; transform: translateY(0); }
  70% { opacity: 1; transform: translateY(-30px); }
  100% { opacity: 0; transform: translateY(-50px); }
}

/* ═══════════════════════════════════════════════════════════════
   PHASE 2 — N-Back Level Up & History
   ═══════════════════════════════════════════════════════════════ */
.nback-level-selector {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 12px 0;
  font-size: 14px;
  color: var(--text-dim);
}
.level-up-flash {
  font-size: 20px;
  font-weight: 700;
  font-family: 'Quicksand', sans-serif;
  color: var(--synapse-gold);
  text-align: center;
  animation: levelFlash 0.5s ease;
}
.level-up-flash.fade {
  opacity: 0;
  transition: opacity 1s;
}
@keyframes levelFlash {
  0% { transform: scale(0.5); opacity: 0; }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); opacity: 1; }
}
.nback-history-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.nback-history-table th {
  text-align: left;
  padding: 8px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border-synapse);
  font-family: 'Space Mono', monospace;
  font-size: 11px;
}
.nback-history-table td {
  padding: 8px;
  border-bottom: 1px solid rgba(0, 240, 255, 0.05);
}

/* ═══════════════════════════════════════════════════════════════
   PHASE 2 — Scientific References
   ═══════════════════════════════════════════════════════════════ */
.ref-link {
  color: var(--synapse-cyan);
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 2px;
  transition: var(--transition);
}
.ref-link:hover {
  color: var(--synapse-magenta);
  text-decoration-style: solid;
}

/* ═══════════════════════════════════════════════════════════════
   FLASHCARDS — Decks, Cards & Review Session
   ═══════════════════════════════════════════════════════════════ */

/* Deck Cards */
.deck-card {
  padding: 16px;
  margin-bottom: 12px;
  border-radius: var(--radius-sm);
  background: var(--bg-neuron);
  border: 1px solid var(--border-synapse);
  border-left: 4px solid var(--synapse-cyan);
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
}
.deck-card:hover {
  background: var(--bg-neuron-hover);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}
.deck-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.deck-card-header h4 {
  color: var(--text-bright);
  font-family: 'Quicksand', sans-serif;
  font-size: 15px;
  font-weight: 700;
  margin: 0;
}
.deck-stats {
  display: flex;
  gap: 12px;
  margin-bottom: 6px;
}
.deck-stat {
  font-size: 12px;
  font-family: 'Space Mono', monospace;
  color: var(--text-dim);
}
.deck-stat-due {
  color: var(--synapse-red);
  font-weight: 700;
}
.deck-stat-ok {
  color: var(--synapse-green);
}
.deck-category {
  font-size: 11px;
  color: var(--text-dim);
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(0, 240, 255, 0.06);
}

/* Card List Items */
.fc-card-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  margin-bottom: 8px;
  border-radius: var(--radius-sm);
  background: var(--bg-neuron);
  border: 1px solid var(--border-synapse);
  transition: background 0.2s;
}
.fc-card-item:hover {
  background: var(--bg-neuron-hover);
}
.fc-card-front {
  flex: 1;
  color: var(--text-bright);
  font-size: 14px;
  font-weight: 600;
}
.fc-card-back {
  flex: 1;
  color: var(--text-dim);
  font-size: 13px;
  border-left: 1px solid var(--border-synapse);
  padding-left: 12px;
}

/* ─── REVIEW SESSION ─── */
.review-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 24px 0;
}
.review-progress {
  font-family: 'Space Mono', monospace;
  font-size: 14px;
  color: var(--synapse-cyan);
  letter-spacing: 1px;
}

/* 3D Flip Card */
.review-flip-card {
  perspective: 1000px;
  width: 100%;
  max-width: 520px;
  min-height: 260px;
  cursor: pointer;
}
.review-flip-inner {
  position: relative;
  width: 100%;
  min-height: 260px;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}
.review-flip-inner.flipped {
  transform: rotateY(180deg);
}
.review-front,
.review-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  border-radius: var(--radius);
  font-size: 18px;
  line-height: 1.6;
  text-align: center;
  word-break: break-word;
}
.review-front {
  background: linear-gradient(145deg, rgba(0, 240, 255, 0.08), rgba(10, 12, 28, 0.9));
  border: 1px solid var(--border-synapse-hover);
  color: var(--text-bright);
  font-weight: 700;
  font-family: 'Quicksand', sans-serif;
  font-size: 20px;
  box-shadow: 0 0 40px rgba(0, 240, 255, 0.08);
}
.review-back {
  background: linear-gradient(145deg, rgba(224, 64, 251, 0.08), rgba(10, 12, 28, 0.9));
  border: 1px solid var(--border-magenta);
  color: var(--text-normal);
  font-size: 16px;
  transform: rotateY(180deg);
  box-shadow: 0 0 40px rgba(224, 64, 251, 0.08);
}

/* Flip glow effect */
.review-flip-inner.flipped .review-back {
  box-shadow: 0 0 60px rgba(224, 64, 251, 0.15), 0 0 120px rgba(224, 64, 251, 0.05);
}

/* Show Answer Button */
.review-show-btn {
  font-size: 16px;
  padding: 14px 32px;
  letter-spacing: 0.5px;
}

/* Rating Buttons (large, for review) */
.review-rating-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.btn-rating-lg {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 14px 20px;
  min-width: 90px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-synapse);
  background: var(--bg-neuron);
  cursor: pointer;
  font-size: 24px;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}
.btn-rating-lg:hover {
  transform: scale(1.08);
}
.rating-label {
  font-size: 11px;
  font-weight: 700;
  font-family: 'Quicksand', sans-serif;
  color: var(--text-dim);
  letter-spacing: 0.5px;
}
.btn-again-lg:hover {
  box-shadow: 0 0 20px var(--synapse-red);
  background: rgba(255, 51, 102, 0.12);
  border-color: var(--synapse-red);
}
.btn-hard-lg:hover {
  box-shadow: 0 0 20px #ff8c00;
  background: rgba(255, 140, 0, 0.12);
  border-color: #ff8c00;
}
.btn-good-lg:hover {
  box-shadow: 0 0 20px var(--synapse-green);
  background: rgba(0, 230, 118, 0.12);
  border-color: var(--synapse-green);
}
.btn-easy-lg:hover {
  box-shadow: 0 0 20px var(--synapse-cyan);
  background: rgba(0, 240, 255, 0.12);
  border-color: var(--synapse-cyan);
}

/* Review Summary */
.review-summary {
  text-align: center;
  padding: 32px 16px;
}
.review-summary-icon {
  font-size: 56px;
  display: block;
  margin-bottom: 12px;
  animation: greetPulse 2s ease infinite;
}
.review-summary h3 {
  font-family: 'Quicksand', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 24px;
}
.review-summary-stats {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}
.review-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 100px;
}
.review-stat-value {
  font-size: 28px;
  font-weight: 700;
  font-family: 'Space Mono', monospace;
  color: var(--synapse-cyan);
}
.review-stat-label {
  font-size: 12px;
  color: var(--text-dim);
}
.review-empty {
  text-align: center;
  padding: 40px 16px;
}
.review-empty h3 {
  font-family: 'Quicksand', sans-serif;
  color: var(--text-bright);
  margin: 12px 0 8px;
}
.review-empty p {
  color: var(--text-dim);
  font-size: 14px;
}

/* Import textarea */
.import-textarea {
  font-family: 'Space Mono', monospace;
  font-size: 13px;
}

/* Responsive Flashcards */
@media (max-width: 768px) {
  .review-flip-card {
    min-height: 200px;
  }
  .review-flip-inner {
    min-height: 200px;
  }
  .review-front,
  .review-back {
    padding: 20px;
    font-size: 16px;
  }
  .review-front {
    font-size: 18px;
  }
  .review-rating-buttons {
    gap: 8px;
  }
  .btn-rating-lg {
    padding: 10px 14px;
    min-width: 72px;
    font-size: 20px;
  }
  .fc-card-item {
    flex-direction: column;
    align-items: flex-start;
  }
  .fc-card-back {
    border-left: none;
    border-top: 1px solid var(--border-synapse);
    padding-left: 0;
    padding-top: 8px;
  }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .review-flip-inner {
    transition: none;
  }
  .review-summary-icon {
    animation: none;
  }
  .deck-card {
    transition: none;
  }
}

/* ═══ ONBOARDING TAB ═══ */
.onboarding-section { margin-bottom: 0; }
.onboarding-section h2 { font-family: 'Quicksand', sans-serif; color: var(--text-bright); margin-bottom: 12px; }
.neuro-pathway-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 16px; }
.pathway-card { padding: 20px; background: var(--bg-neuron); border-radius: var(--radius-sm); border: 1px solid var(--border-synapse); }
.pathway-card h4 { color: var(--synapse-cyan); margin: 8px 0; font-family: 'Quicksand', sans-serif; }
.pathway-card p { color: var(--text-dim); font-size: 14px; line-height: 1.5; margin-bottom: 8px; }
.pathway-icon { font-size: 28px; }

.study-timeline { margin-top: 16px; }
.timeline-step { display: flex; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--border-synapse); }
.step-time { min-width: 70px; font-family: 'Space Mono', monospace; font-size: 12px; color: var(--synapse-cyan); padding-top: 4px; }
.step-content h4 { color: var(--text-bright); margin-bottom: 4px; }
.step-content p { color: var(--text-dim); font-size: 14px; }
.step-gain { display: inline-block; margin-top: 6px; font-size: 13px; font-weight: 700; color: var(--synapse-green); background: rgba(0,230,118,0.1); padding: 3px 10px; border-radius: 20px; }

.onboarding-tool { margin-top: 16px; padding: 16px; background: var(--bg-neuron); border-radius: var(--radius-sm); border: 1px solid var(--border-synapse); cursor: pointer; transition: var(--transition); }
.onboarding-tool:hover { border-color: var(--synapse-cyan); }
.tool-header-onb { display: flex; align-items: center; gap: 12px; }
.tool-header-onb h3 { color: var(--text-bright); font-size: 16px; }
.tool-icon-onb { font-size: 28px; }
.tool-when { font-size: 12px; color: var(--synapse-gold); }
.onboarding-tool .tc-details { margin-top: 16px; }
.onboarding-tool .tc-details h4 { color: var(--synapse-cyan); margin: 16px 0 8px; font-size: 14px; }
.onboarding-tool .tc-details p, .onboarding-tool .tc-details li { color: var(--text-dim); font-size: 14px; line-height: 1.6; }
.onboarding-tool .tc-details ol, .onboarding-tool .tc-details ul { padding-left: 20px; }
.tool-refs li { margin-bottom: 6px; }

.xp-explanation-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; margin-top: 16px; }
.xp-explain-card { padding: 16px; background: var(--bg-neuron); border-radius: var(--radius-sm); text-align: center; border: 1px solid var(--border-synapse); }
.xp-value { font-size: 24px; font-weight: 700; color: var(--synapse-gold); font-family: 'Space Mono', monospace; display: block; margin-bottom: 8px; }
.xp-explain-card p { font-size: 13px; color: var(--text-dim); }

.level-progression { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.level-step { display: flex; align-items: center; gap: 8px; padding: 10px 16px; background: var(--bg-neuron); border-radius: var(--radius-sm); border: 1px solid var(--border-synapse); font-size: 14px; color: var(--text-bright); }
.level-icon-onb { font-size: 20px; }
.level-xp { font-size: 11px; color: var(--text-dim); font-family: 'Space Mono', monospace; margin-left: 4px; }

.neuro-tip { border-left: 3px solid var(--synapse-gold); }

.onboarding-tool .toggle-arrow { margin-left: auto; font-size: 18px; }
.onboarding-tool.expanded .toggle-arrow { transform: rotate(90deg); }

@media (max-width: 768px) {
  .neuro-pathway-grid { grid-template-columns: 1fr; }
  .level-progression { flex-direction: column; }
  .timeline-step { flex-direction: column; gap: 8px; }
  .step-time { min-width: auto; }
}

/* ═══════════════════════════════════════════════════════════════
   SURVEY MODAL — Onboarding Wizard
   ═══════════════════════════════════════════════════════════════ */

.survey-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 3, 8, 0.96);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.survey-container {
  background: var(--bg-cortex);
  border: 1px solid var(--border-synapse);
  border-radius: var(--radius);
  padding: 40px;
  max-width: 560px;
  width: 92%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--glow-cyan), 0 24px 80px rgba(0, 0, 0, 0.6);
  animation: surveySlideIn 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

@keyframes surveySlideIn {
  from { opacity: 0; transform: translateY(24px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.survey-progress {
  height: 4px;
  background: var(--bg-neuron-hover);
  border-radius: 2px;
  margin-bottom: 24px;
  overflow: hidden;
}

.survey-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--synapse-cyan), var(--synapse-magenta));
  border-radius: 2px;
  transition: width 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

.survey-step-indicator {
  text-align: center;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 16px;
  font-family: 'Space Mono', monospace;
  letter-spacing: 1px;
}

.survey-title {
  font-family: 'Quicksand', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--text-bright);
  text-align: center;
  margin-bottom: 8px;
}

.survey-desc {
  text-align: center;
  color: var(--text-dim);
  font-size: 14px;
  margin-bottom: 24px;
  line-height: 1.5;
}

.survey-level-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.survey-level-card {
  padding: 20px 16px;
  border: 2px solid var(--border-synapse);
  border-radius: var(--radius-sm);
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background: var(--bg-neuron);
}

.survey-level-card:hover {
  border-color: rgba(0, 240, 255, 0.4);
  background: var(--bg-neuron-hover);
}

.survey-level-card.selected {
  border-color: var(--synapse-cyan);
  box-shadow: var(--glow-cyan);
  background: rgba(0, 240, 255, 0.06);
}

.survey-level-card .level-emoji { font-size: 32px; margin-bottom: 8px; display: block; }
.survey-level-card .level-name { font-weight: 700; color: var(--text-bright); font-size: 15px; }
.survey-level-card .level-desc { font-size: 12px; color: var(--text-dim); margin-top: 6px; line-height: 1.4; }

.survey-field { margin-bottom: 16px; }

.survey-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 6px;
}

.survey-textarea {
  width: 100%;
  background: var(--bg-neuron);
  border: 1px solid var(--border-synapse);
  color: var(--text-normal);
  border-radius: var(--radius-sm);
  padding: 12px;
  font-family: inherit;
  font-size: 14px;
  resize: vertical;
  transition: border-color 0.2s;
}

.survey-textarea:focus {
  border-color: var(--synapse-cyan);
  outline: none;
  box-shadow: 0 0 0 2px rgba(0, 240, 255, 0.1);
}

.survey-input,
.survey-select {
  width: 100%;
  background: var(--bg-neuron);
  border: 1px solid var(--border-synapse);
  color: var(--text-normal);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-family: inherit;
  font-size: 14px;
  transition: border-color 0.2s;
}

.survey-input:focus,
.survey-select:focus {
  border-color: var(--synapse-cyan);
  outline: none;
  box-shadow: 0 0 0 2px rgba(0, 240, 255, 0.1);
}

.survey-select option {
  background: var(--bg-cortex);
  color: var(--text-normal);
}

.survey-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 28px;
}

.survey-btn-back {
  background: none;
  border: 1px solid var(--border-synapse);
  color: var(--text-dim);
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  transition: var(--transition);
}

.survey-btn-back:hover {
  border-color: var(--text-dim);
  color: var(--text-normal);
}

.survey-btn-next {
  background: linear-gradient(90deg, var(--synapse-cyan), var(--synapse-blue));
  color: #000;
  font-weight: 700;
  padding: 10px 28px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  font-size: 14px;
  transition: var(--transition);
}

.survey-btn-next:hover {
  transform: translateY(-1px);
  box-shadow: var(--glow-cyan);
}

.survey-btn-start {
  background: linear-gradient(90deg, var(--synapse-green), var(--synapse-cyan));
  color: #000;
  font-weight: 700;
  padding: 12px 32px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  font-size: 15px;
  transition: var(--transition);
}

.survey-btn-start:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(0, 230, 118, 0.3);
}

.survey-btn-start:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.survey-opt-in {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: var(--bg-neuron);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  border: 1px solid var(--border-synapse);
}

.survey-opt-in input[type="checkbox"] {
  margin-top: 4px;
  accent-color: var(--synapse-cyan);
  width: 18px;
  height: 18px;
  cursor: pointer;
  flex-shrink: 0;
}

.survey-lgpd-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 12px;
  background: rgba(255, 190, 11, 0.06);
  border: 1px solid rgba(255, 190, 11, 0.15);
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.5;
  margin-top: 8px;
}

/* Survey Summary */
.survey-summary {
  background: var(--bg-neuron);
  border: 1px solid var(--border-synapse);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(0, 240, 255, 0.06);
}

.summary-row:last-child { border-bottom: none; }

.summary-label {
  font-size: 12px;
  color: var(--text-dim);
  font-family: 'Space Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  flex-shrink: 0;
  margin-right: 12px;
}

.summary-value {
  font-size: 14px;
  color: var(--text-bright);
  text-align: right;
  max-width: 300px;
  word-break: break-word;
}

/* ═══════════════════════════════════════════════════════════════
   MESSAGE BADGE
   ═══════════════════════════════════════════════════════════════ */

.message-badge {
  background: var(--synapse-red);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  padding: 0 5px;
  font-family: 'Space Mono', monospace;
  animation: badgePulse 2s infinite;
}

@keyframes badgePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 51, 102, 0.4); }
  50% { box-shadow: 0 0 0 4px rgba(255, 51, 102, 0); }
}

/* ═══════════════════════════════════════════════════════════════
   MESSAGE ITEMS
   ═══════════════════════════════════════════════════════════════ */

.message-item {
  padding: 16px;
  border-left: 3px solid var(--border-synapse);
  margin-bottom: 10px;
  background: var(--bg-neuron);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  cursor: pointer;
  transition: var(--transition);
}

.message-item.unread {
  border-left-color: var(--synapse-cyan);
  background: rgba(0, 240, 255, 0.04);
}

.message-item.unread .message-title {
  font-weight: 700;
  color: var(--text-bright);
}

.message-item:hover {
  background: var(--bg-neuron-hover);
  transform: translateX(2px);
}

.message-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.message-title {
  font-size: 15px;
  color: var(--text-normal);
  transition: color 0.2s;
}

.message-time {
  font-size: 11px;
  color: var(--text-dim);
  font-family: 'Space Mono', monospace;
  flex-shrink: 0;
  margin-left: 12px;
}

.message-body {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.5;
}

.message-type-icon {
  font-size: 18px;
  margin-right: 8px;
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════════════
   GOALS
   ═══════════════════════════════════════════════════════════════ */

.goal-item {
  padding: 14px;
  margin-bottom: 10px;
  background: var(--bg-neuron);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-synapse);
  display: flex;
  align-items: center;
  gap: 12px;
  transition: var(--transition);
}

.goal-item:hover {
  border-color: rgba(0, 240, 255, 0.3);
}

.goal-item.achieved {
  border-color: rgba(0, 230, 118, 0.25);
  opacity: 0.7;
}

.goal-item.achieved .goal-desc {
  text-decoration: line-through;
  color: var(--text-dim);
}

.goal-status-btn {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  transition: transform 0.2s;
  flex-shrink: 0;
}

.goal-status-btn:hover {
  transform: scale(1.15);
}

.goal-text { flex: 1; min-width: 0; }

.goal-type {
  font-size: 11px;
  color: var(--synapse-gold);
  font-family: 'Space Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 2px;
}

.goal-desc {
  color: var(--text-normal);
  font-size: 14px;
  line-height: 1.4;
}

.goal-target {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 2px;
}

/* ═══════════════════════════════════════════════════════════════
   PLAN GATE — Free/Pro UI
   ═══════════════════════════════════════════════════════════════ */

.pro-badge {
  font-size: 9px;
  background: linear-gradient(90deg, var(--synapse-cyan), var(--synapse-magenta));
  color: #000;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 700;
  margin-left: auto;
}

.upgrade-banner {
  background: linear-gradient(90deg, rgba(0,240,255,0.08), rgba(224,64,251,0.08));
  border: 1px solid rgba(0,240,255,0.2);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 20px;
}

.upgrade-banner-content {
  display: flex;
  align-items: center;
  gap: 12px;
}

.upgrade-icon {
  font-size: 24px;
}

.upgrade-banner-content strong {
  color: var(--synapse-gold);
}

.upgrade-btn {
  background: linear-gradient(90deg, var(--synapse-cyan), var(--synapse-magenta));
  color: #000;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 800;
  font-size: 14px;
  text-decoration: none;
  text-shadow: 0 1px 0 rgba(255,255,255,0.2);
  letter-spacing: 0.5px;
  box-shadow: 0 0 16px rgba(0,240,255,0.3), 0 0 40px rgba(224,64,251,0.15);
  white-space: nowrap;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE — Survey & Messages
   ═══════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
  .survey-level-cards { grid-template-columns: 1fr; }
  .survey-container { padding: 24px 16px; }
  .survey-title { font-size: 19px; }
  .message-header { flex-direction: column; align-items: flex-start; gap: 4px; }
  .message-time { margin-left: 0; }
}

/* ═══════════════════════════════════════════════════════════════
   ASSESSMENT WIZARD
   ═══════════════════════════════════════════════════════════════ */
.assessment-container {
  background: var(--bg-cortex);
  border: 1px solid var(--border-synapse);
  border-radius: var(--radius);
  padding: 32px;
  max-width: 520px;
  width: 92%;
  max-height: 90vh;
  overflow-y: auto;
}
.assessment-progress {
  height: 4px;
  background: var(--bg-neuron-hover);
  border-radius: 2px;
  margin-bottom: 12px;
}
.assessment-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--synapse-cyan), var(--synapse-magenta));
  border-radius: 2px;
  transition: width 0.4s;
}
.assessment-step-label {
  text-align: center;
  font-size: 12px;
  color: var(--text-dim);
  font-family: 'Space Mono', monospace;
  margin-bottom: 20px;
}
.assessment-btn-primary {
  padding: 14px 32px;
  background: linear-gradient(90deg, var(--synapse-cyan), var(--synapse-magenta));
  color: #000;
  font-weight: 700;
  font-family: 'Quicksand', sans-serif;
  font-size: 15px;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}
.assessment-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 240, 255, 0.3);
}

@media (max-width: 768px) {
  .assessment-container { padding: 20px 16px; max-width: 100%; width: 96%; }
}

/* ═══ Articles Library ═══ */
.article-filters { margin-bottom: 16px; }
.article-filter { padding: 6px 14px; border-radius: 20px; border: 1px solid var(--border-synapse); background: transparent; color: var(--text-dim); font-size: 12px; cursor: pointer; transition: var(--transition); }
.article-filter.active, .article-filter:hover { background: rgba(0,240,255,0.1); color: var(--synapse-cyan); border-color: var(--synapse-cyan); }
.articles-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.article-card { padding: 20px; background: var(--bg-neuron); border: 1px solid var(--border-synapse); border-radius: var(--radius-sm); transition: var(--transition); }
.article-card:hover { border-color: var(--synapse-cyan); box-shadow: var(--glow-cyan); }
.article-category { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; font-family: 'Space Mono', monospace; }
.article-title { font-size: 15px; font-weight: 700; color: var(--text-bright); line-height: 1.4; margin-bottom: 8px; font-family: 'Quicksand', sans-serif; }
.article-authors { font-size: 13px; color: var(--text-dim); margin-bottom: 8px; }
.article-meta { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-dim); margin-bottom: 12px; font-family: 'Space Mono', monospace; }
.article-journal { font-style: italic; }
.article-download { display: inline-block; padding: 8px 16px; background: rgba(0,240,255,0.1); border: 1px solid rgba(0,240,255,0.2); border-radius: 6px; color: var(--synapse-cyan); font-size: 13px; font-weight: 600; text-decoration: none; transition: var(--transition); }
.article-download:hover { background: rgba(0,240,255,0.2); border-color: var(--synapse-cyan); }
@media (max-width: 768px) { .articles-grid { grid-template-columns: 1fr; } }

/* ====== ZEN MODE (Unified Review) ====== */
.zen-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; z-index: 9999; background: rgba(4,6,16,0.98); display: flex; align-items: center; justify-content: center; backdrop-filter: blur(20px); }
.zen-container { width: 100%; max-width: 600px; padding: 24px; display: flex; flex-direction: column; align-items: center; gap: 20px; }
.zen-header { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.zen-progress { font-family: 'Space Mono', monospace; font-size: 14px; color: var(--synapse-cyan); }
.zen-category { font-size: 13px; color: var(--text-dim); }
.zen-close-btn { background: none; border: 1px solid rgba(255,255,255,0.1); border-radius: 50%; width: 32px; height: 32px; color: var(--text-dim); cursor: pointer; font-size: 14px; transition: var(--transition); display: flex; align-items: center; justify-content: center; }
.zen-close-btn:hover { color: #ff3366; border-color: #ff3366; }
.zen-card { width: 100%; min-height: 250px; perspective: 1000px; cursor: pointer; }
.zen-card-inner { position: relative; width: 100%; min-height: 250px; transition: transform 0.5s cubic-bezier(0.4,0,0.2,1); transform-style: preserve-3d; }
.zen-card-inner.flipped { transform: rotateY(180deg); }
.zen-front, .zen-back { position: absolute; top: 0; left: 0; right: 0; min-height: 250px; backface-visibility: hidden; display: flex; align-items: center; justify-content: center; padding: 32px; border-radius: 16px; font-size: 18px; line-height: 1.6; text-align: center; font-family: 'Quicksand', sans-serif; }
.zen-front { background: linear-gradient(135deg, rgba(0,240,255,0.06), rgba(10,12,28,0.9)); border: 1px solid rgba(0,240,255,0.15); color: var(--text-bright); }
.zen-back { background: linear-gradient(135deg, rgba(224,64,251,0.06), rgba(10,12,28,0.9)); border: 1px solid rgba(224,64,251,0.15); color: var(--text-bright); transform: rotateY(180deg); }
.zen-show-btn { width: 100%; max-width: 300px; }
.zen-rating { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; width: 100%; }
.zen-summary { text-align: center; }
.zen-summary h2 { color: var(--text-bright); margin: 12px 0; font-family: 'Quicksand', sans-serif; }
.zen-summary-stats { display: flex; gap: 24px; justify-content: center; margin-top: 16px; }
.zen-stat { text-align: center; }
.zen-stat-val { display: block; font-size: 28px; font-weight: 700; font-family: 'Space Mono', monospace; color: var(--text-bright); }
.zen-stat-lbl { display: block; font-size: 12px; color: var(--text-dim); margin-top: 4px; }
.unified-review-widget { border: 1px solid rgba(0,240,255,0.15); position: relative; overflow: hidden; }
.unified-review-widget::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--synapse-cyan), var(--synapse-magenta)); }
@media (max-width: 768px) { .zen-front, .zen-back { font-size: 15px; padding: 24px; min-height: 200px; } .zen-rating { gap: 6px; } .zen-summary-stats { gap: 16px; } .zen-stat-val { font-size: 22px; } }

/* ====== FLASHCARD EXTRAS ====== */
.fc-prompt-box { background: rgba(0,0,0,0.3); border: 1px solid var(--border-synapse); border-radius: 8px; padding: 16px; position: relative; }
.fc-prompt-text { font-size: 12px; color: var(--text-dim); line-height: 1.6; white-space: pre-wrap; word-wrap: break-word; font-family: 'Space Mono', monospace; max-height: 300px; overflow-y: auto; margin: 0 0 12px 0; }
.fc-copy-btn { width: 100%; }
.review-deck-cb, .review-deck-all { accent-color: var(--synapse-cyan); cursor: pointer; }

/* Deck accordion */
.deck-accordion { border: 1px solid var(--border-synapse); border-left: 3px solid var(--deck-color, var(--synapse-cyan)); border-radius: 8px; margin-bottom: 8px; overflow: hidden; transition: var(--transition); }
.deck-accordion[open] { border-color: var(--deck-color, var(--synapse-cyan)); border-left-width: 3px; }
.deck-accordion-header { list-style: none; cursor: pointer; padding: 12px 16px; display: flex; align-items: center; justify-content: space-between; gap: 8px; transition: var(--transition); }
.deck-accordion-header::-webkit-details-marker { display: none; }
.deck-accordion-header:hover { background: rgba(255,255,255,0.02); }
.deck-accordion-info { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; flex: 1; min-width: 0; }
.deck-accordion-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.deck-accordion-info h4 { font-size: 14px; color: var(--text-bright); margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.deck-accordion-meta { font-size: 12px; color: var(--text-dim); font-family: 'Space Mono', monospace; }
.deck-accordion-body { border-top: 1px solid rgba(255,255,255,0.04); max-height: 400px; overflow-y: auto; padding: 4px 0; }

/* Card rows inside accordion */
.fc-card-row { display: flex; align-items: flex-start; gap: 8px; padding: 8px 16px; border-bottom: 1px solid rgba(255,255,255,0.03); font-size: 13px; transition: var(--transition); }
.fc-card-row:last-child { border-bottom: none; }
.fc-card-row:hover { background: rgba(255,255,255,0.02); }
.fc-card-num { color: var(--text-dim); font-size: 11px; font-family: 'Space Mono', monospace; min-width: 22px; text-align: right; flex-shrink: 0; padding-top: 2px; opacity: 0.5; }
.fc-card-front-inline { flex: 1; color: var(--text-bright); line-height: 1.5; min-width: 0; }
.fc-card-back-inline { flex: 1; color: var(--text-dim); line-height: 1.5; min-width: 0; font-size: 12px; }
.btn-delete-sm { font-size: 10px; padding: 2px 6px; flex-shrink: 0; opacity: 0; transition: var(--transition); }
.fc-card-row:hover .btn-delete-sm { opacity: 1; }
@media (max-width: 768px) { .fc-card-back-inline { display: none; } .btn-delete-sm { opacity: 1; } .deck-accordion-info { gap: 6px; } }

/* Flashcard tutorial */
.fc-advantage-banner { display: flex; gap: 14px; padding: 16px; background: linear-gradient(135deg, rgba(0,240,255,0.06), rgba(224,64,251,0.04)); border: 1px solid rgba(0,240,255,0.15); border-radius: 8px; margin-bottom: 20px; }
.fc-advantage-icon { font-size: 28px; flex-shrink: 0; margin-top: 2px; }
.fc-advantage-banner strong { color: var(--text-bright); font-size: 14px; display: block; margin-bottom: 6px; }
.fc-advantage-banner p { font-size: 13px; color: var(--text-dim); line-height: 1.6; margin: 0; }
.fc-tutorial-steps { display: flex; flex-direction: column; gap: 0; margin: 16px 0; }
.fc-step { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,0.04); }
.fc-step:last-child { border-bottom: none; }
.fc-step-number { width: 32px; height: 32px; border-radius: 50%; background: rgba(0,240,255,0.1); border: 1px solid rgba(0,240,255,0.3); color: var(--synapse-cyan); display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; font-family: 'Space Mono', monospace; flex-shrink: 0; }
.fc-step-content h5 { font-size: 14px; font-weight: 700; color: var(--text-bright); margin: 0 0 6px 0; font-family: 'Quicksand', sans-serif; }
.fc-step-content p { font-size: 13px; color: var(--text-dim); line-height: 1.6; margin: 0; }
.fc-step-content code { font-size: 12px; }
.fc-tip-box { padding: 12px 16px; background: rgba(255,190,11,0.06); border: 1px solid rgba(255,190,11,0.15); border-radius: 8px; font-size: 13px; color: var(--text-dim); line-height: 1.5; margin-top: 12px; }
.fc-tip-box strong { color: #ffbe0b; }
@media (max-width: 768px) { .fc-advantage-banner { flex-direction: column; gap: 8px; } .fc-step-number { width: 28px; height: 28px; font-size: 12px; } }

/* ====== NEURÓBICA ====== */
.nb-daily-card { padding: 24px; border-radius: var(--radius-sm); border: 1px solid var(--cat-color, var(--border-synapse)); background: linear-gradient(135deg, rgba(10,12,28,0.9), rgba(10,12,28,0.7)); position: relative; overflow: hidden; }
.nb-daily-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--cat-color, var(--synapse-cyan)); }
.nb-daily-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.nb-cat-badge { padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; border: 1px solid; font-family: 'Space Mono', monospace; }
.nb-difficulty { font-size: 14px; letter-spacing: 2px; }
.nb-daily-title { font-size: 13px; text-transform: uppercase; letter-spacing: 2px; color: var(--text-dim); margin-bottom: 12px; font-family: 'Space Mono', monospace; }
.nb-daily-challenge { font-size: 17px; line-height: 1.6; color: var(--text-bright); margin-bottom: 16px; font-family: 'Quicksand', sans-serif; }
.nb-duration-badge { display: inline-block; padding: 4px 10px; border-radius: 12px; font-size: 12px; background: rgba(255,255,255,0.06); color: var(--text-dim); margin-bottom: 12px; }
.nb-neurobase { margin: 12px 0 16px; }
.nb-neurobase summary { cursor: pointer; color: var(--synapse-cyan); font-size: 13px; font-weight: 600; font-family: 'Space Mono', monospace; }
.nb-neurobase p { margin-top: 8px; font-size: 14px; color: var(--text-dim); line-height: 1.6; }
.nb-completed-state { display: flex; align-items: center; gap: 8px; padding: 12px; background: rgba(0,230,118,0.08); border-radius: 8px; color: #00e676; font-weight: 600; }
.nb-complete-btn { width: 100%; margin-top: 8px; }
.nb-rating-area { flex-direction: column; align-items: center; gap: 12px; padding: 16px 0; }
.nb-rating-prompt { color: var(--text-dim); font-size: 14px; }
.nb-stars { display: flex; gap: 8px; }
.nb-star { background: none; border: none; font-size: 28px; cursor: pointer; color: var(--text-dim); transition: var(--transition); padding: 4px; }
.nb-star:hover, .nb-star.active { color: #ffbe0b; text-shadow: 0 0 12px rgba(255,190,11,0.5); }
.nb-streak-bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; margin-top: 12px; background: rgba(255,190,11,0.06); border: 1px solid rgba(255,190,11,0.15); border-radius: var(--radius-sm); }
.nb-streak-flame { font-size: 20px; }
.nb-streak-count { font-size: 22px; font-weight: 700; color: #ffbe0b; font-family: 'Space Mono', monospace; }
.nb-streak-label { color: var(--text-dim); font-size: 13px; }

/* Deck browser */
.nb-overall-progress { margin-bottom: 16px; }
.nb-overall-label { font-size: 13px; color: var(--text-dim); margin-top: 6px; display: block; }
.nb-category-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.nb-category-tile { padding: 16px; border-radius: var(--radius-sm); border: 1px solid var(--border-synapse); cursor: pointer; transition: var(--transition); }
.nb-category-tile:hover { border-color: var(--cat-color); box-shadow: 0 0 16px color-mix(in srgb, var(--cat-color) 20%, transparent); }
.nb-tile-header { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.nb-tile-icon { font-size: 20px; }
.nb-tile-name { font-weight: 700; color: var(--text-bright); font-family: 'Quicksand', sans-serif; }
.nb-tile-progress { display: flex; align-items: center; gap: 8px; }
.nb-tile-count { font-size: 12px; color: var(--text-dim); font-family: 'Space Mono', monospace; min-width: 40px; }
.nb-tile-cards { margin-top: 12px; display: flex; flex-direction: column; gap: 6px; }
.nb-mini-card { display: flex; align-items: flex-start; gap: 8px; padding: 8px; border-radius: 6px; background: rgba(255,255,255,0.03); font-size: 13px; }
.nb-mini-card.completed { opacity: 0.5; }
.nb-mini-check { font-size: 14px; flex-shrink: 0; }
.nb-mini-text { color: var(--text-dim); line-height: 1.4; }
.nb-mini-diff { font-size: 10px; margin-left: auto; flex-shrink: 0; }

/* Stats */
.nb-stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 20px; }
.nb-stat-block { text-align: center; padding: 16px 8px; background: var(--bg-neuron); border-radius: var(--radius-sm); border: 1px solid var(--border-synapse); }
.nb-stat-icon { font-size: 24px; margin-bottom: 4px; }
.nb-stat-value { font-size: 22px; font-weight: 700; color: var(--text-bright); font-family: 'Space Mono', monospace; }
.nb-stat-label { font-size: 12px; color: var(--text-dim); margin-top: 2px; }
.nb-radar-section { margin-bottom: 20px; }
.nb-section-title { font-size: 14px; font-weight: 700; color: var(--text-bright); margin-bottom: 12px; font-family: 'Quicksand', sans-serif; }
.nb-radar-bars { display: flex; flex-direction: column; gap: 8px; }
.nb-radar-row { display: flex; align-items: center; gap: 10px; }
.nb-radar-label { min-width: 110px; font-size: 13px; color: var(--text-dim); }
.nb-radar-bar { flex: 1; }
.nb-radar-pct { min-width: 36px; text-align: right; font-size: 12px; color: var(--text-dim); font-family: 'Space Mono', monospace; }
.nb-week-section { margin-top: 16px; }
.nb-week-dots { display: flex; justify-content: space-around; }
.nb-week-day { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.nb-dot { width: 12px; height: 12px; border-radius: 50%; background: rgba(255,255,255,0.08); border: 1px solid var(--border-synapse); }
.nb-dot.active { background: var(--synapse-cyan); border-color: var(--synapse-cyan); box-shadow: 0 0 8px rgba(0,240,255,0.4); }
.nb-day-label { font-size: 11px; color: var(--text-dim); }

/* XP animation */
.nb-xp-float { position: absolute; top: 50%; left: 50%; font-size: 20px; font-weight: 700; color: #ffbe0b; font-family: 'Space Mono', monospace; pointer-events: none; animation: nbXpFloat 1.5s ease-out forwards; z-index: 10; }
@keyframes nbXpFloat { 0% { opacity: 1; transform: translate(-50%, -50%) scale(1); } 100% { opacity: 0; transform: translate(-50%, -150%) scale(1.5); } }

/* Progress bar reuse */
.progress-bar { width: 100%; height: 6px; background: rgba(255,255,255,0.06); border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; border-radius: 3px; transition: width 0.5s ease; background: var(--synapse-cyan); }

/* Animations */
.anim-fade-up { animation: nbFadeUp 0.4s ease-out; }
@keyframes nbFadeUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
.anim-scale-in { animation: nbScaleIn 0.3s ease-out; }
@keyframes nbScaleIn { from { opacity: 0; transform: scale(0.9); } to { opacity: 1; transform: scale(1); } }

/* Dashboard widget */
.nb-dashboard-widget { position: relative; border: 1px solid rgba(0,240,255,0.15); transition: var(--transition); overflow: hidden; }
.nb-dashboard-widget::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, #00f0ff, #e040fb, #ffbe0b); }
.nb-dashboard-widget:hover { border-color: rgba(0,240,255,0.35); box-shadow: var(--glow-cyan); transform: translateY(-1px); }
.nb-dash-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.nb-dash-header h3 { margin: 0; font-size: 16px; }
.nb-dash-streak { font-size: 13px; font-weight: 700; color: #ffbe0b; font-family: 'Space Mono', monospace; }
.nb-dash-card-area { margin-bottom: 8px; }
.nb-dash-badge { display: inline-block; padding: 3px 10px; border-radius: 16px; font-size: 11px; font-weight: 600; border: 1px solid; margin-bottom: 8px; font-family: 'Space Mono', monospace; }
.nb-dash-challenge { font-size: 14px; line-height: 1.6; color: var(--text-bright); margin: 0; font-family: 'Quicksand', sans-serif; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.nb-dash-done { display: inline-block; margin-top: 8px; font-size: 12px; color: #00e676; font-weight: 600; }
.nb-dash-cta { font-size: 12px; color: var(--synapse-cyan); margin: 8px 0 0; font-family: 'Space Mono', monospace; opacity: 0.7; }
.nb-dashboard-widget:hover .nb-dash-cta { opacity: 1; }

/* Seção educativa */
.nb-edu-section { border: 1px solid rgba(0,240,255,0.12); }
.nb-edu-summary { cursor: pointer; font-size: 15px; font-weight: 700; color: var(--synapse-cyan); padding: 4px 0; font-family: 'Quicksand', sans-serif; list-style: none; display: flex; align-items: center; gap: 8px; }
.nb-edu-summary::-webkit-details-marker { display: none; }
.nb-edu-summary::after { content: '▾'; margin-left: auto; font-size: 12px; transition: transform 0.2s; }
details[open] > .nb-edu-summary::after { transform: rotate(180deg); }
.nb-edu-content { margin-top: 16px; }
.nb-edu-block { margin-bottom: 20px; padding-bottom: 16px; border-bottom: 1px solid rgba(255,255,255,0.04); }
.nb-edu-block:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.nb-edu-block h4 { font-size: 15px; font-weight: 700; color: var(--text-bright); margin-bottom: 10px; font-family: 'Quicksand', sans-serif; }
.nb-edu-block p { font-size: 14px; color: var(--text-dim); line-height: 1.7; margin-bottom: 6px; }
.nb-edu-block p strong { color: var(--text-bright); }
.nb-edu-ref { font-size: 12px !important; color: #5a6a8a !important; font-style: italic; margin-top: 4px !important; }
.nb-edu-ref a { color: rgba(0,240,255,0.6); text-decoration: none; transition: var(--transition); }
.nb-edu-ref a:hover { color: var(--synapse-cyan); text-decoration: underline; }
.nb-edu-pathway { display: flex; flex-wrap: wrap; align-items: center; gap: 4px; padding: 12px 16px; background: rgba(0,240,255,0.04); border: 1px solid rgba(0,240,255,0.1); border-radius: 8px; margin: 12px 0; font-size: 13px; font-family: 'Space Mono', monospace; color: var(--synapse-cyan); }
.nb-benefits-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 12px; }
.nb-benefit { display: flex; gap: 12px; padding: 14px; background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); border-radius: 8px; }
.nb-benefit-icon { font-size: 24px; flex-shrink: 0; margin-top: 2px; }
.nb-benefit strong { display: block; color: var(--text-bright); font-size: 14px; margin-bottom: 4px; }
.nb-benefit p { font-size: 13px; color: var(--text-dim); line-height: 1.5; margin: 0; }
.nb-cat-table { display: flex; flex-direction: column; gap: 8px; }
.nb-cat-row { display: flex; align-items: center; gap: 12px; padding: 10px 14px; background: rgba(255,255,255,0.02); border-left: 3px solid var(--rc, var(--synapse-cyan)); border-radius: 0 8px 8px 0; }
.nb-cat-icon { font-size: 22px; flex-shrink: 0; }
.nb-cat-row strong { display: block; font-size: 14px; margin-bottom: 2px; }
.nb-cat-row p { font-size: 12px; color: var(--text-dim); margin: 0; font-family: 'Space Mono', monospace; }
.nb-edu-refs-block { }
.nb-edu-refs-list { padding-left: 20px; margin: 0; }
.nb-edu-refs-list li { font-size: 12px; color: #5a6a8a; line-height: 1.6; margin-bottom: 6px; }
.nb-edu-refs-list a { color: rgba(0,240,255,0.55); text-decoration: none; transition: var(--transition); }
.nb-edu-refs-list a:hover { color: var(--synapse-cyan); text-decoration: underline; }
.nb-edu-refs-list em { font-style: italic; }
@media (max-width: 768px) { .nb-benefits-grid { grid-template-columns: 1fr; } .nb-edu-pathway { font-size: 11px; } }

/* Tab bar dentro da neuróbica */
.nb-tab-bar .tab { padding: 8px 16px; border-radius: 8px; border: 1px solid var(--border-synapse); background: transparent; color: var(--text-dim); cursor: pointer; font-size: 13px; transition: var(--transition); }
.nb-tab-bar .tab.active { background: rgba(0,240,255,0.1); color: var(--synapse-cyan); border-color: var(--synapse-cyan); }

@media (max-width: 768px) {
    .nb-stats-grid { grid-template-columns: repeat(3, 1fr); gap: 8px; }
    .nb-category-grid { grid-template-columns: 1fr; }
    .nb-daily-challenge { font-size: 15px; }
    .nb-stat-value { font-size: 18px; }
}