/* ═══════════════════════════════════════════════════════════════
   COGNICARE – Accessibility-First Design System
   Designed for users with dementia, ADHD, learning difficulties
   ═══════════════════════════════════════════════════════════════ */

/* ── CSS Custom Properties (Design Tokens) ── */
:root {
  /* Colour palette – WCAG AA compliant (4.5:1 minimum) */
  --color-bg:           #f8f6f2;
  --color-surface:      #ffffff;
  --color-surface-2:    #f0ede6;
  --color-border:       #c8c0b0;
  --color-text:         #1a1a1a;
  --color-text-muted:   #5a5248;
  --color-primary:      #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light:#dbeafe;
  --color-secondary:    #059669;
  --color-secondary-dk: #047857;
  --color-accent:       #d97706;
  --color-accent-light: #fef3c7;
  --color-danger:       #dc2626;
  --color-danger-light: #fee2e2;
  --color-success:      #16a34a;
  --color-success-light:#dcfce7;
  --color-warning:      #ca8a04;
  --color-warning-light:#fef9c3;

  /* Cognitive domain colours */
  --color-memory:       #7c3aed;
  --color-attention:    #0891b2;
  --color-language:     #059669;
  --color-reasoning:    #d97706;
  --color-processing:   #dc2626;

  /* Typography – Lexend for body (dyslexia-friendly), Atkinson for UI */
  --font-body:    'Lexend', 'Segoe UI', Arial, sans-serif;
  --font-ui:      'Atkinson Hyperlegible', 'Segoe UI', Arial, sans-serif;

  /* Font scale – base 18px for readability */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1.125rem;   /* 18px */
  --text-lg:   1.25rem;
  --text-xl:   1.5rem;
  --text-2xl:  1.875rem;
  --text-3xl:  2.25rem;
  --text-4xl:  3rem;

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Radii */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  28px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.08);
  --shadow-md:  0 4px 12px rgba(0,0,0,0.12), 0 2px 6px rgba(0,0,0,0.08);
  --shadow-lg:  0 10px 30px rgba(0,0,0,0.14), 0 4px 12px rgba(0,0,0,0.08);
  --shadow-focus: 0 0 0 4px rgba(37,99,235,0.4);

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow:   400ms ease;

  /* Layout */
  --topbar-height: 72px;
  --max-width:     1100px;
  --font-scale:    1;
}

/* ── High Contrast Theme ── */
body.high-contrast {
  --color-bg:           #000000;
  --color-surface:      #0a0a0a;
  --color-surface-2:    #111111;
  --color-border:       #ffffff;
  --color-text:         #ffffff;
  --color-text-muted:   #e0e0e0;
  --color-primary:      #4da6ff;
  --color-primary-dark: #80bfff;
  --color-primary-light:#001a33;
  --color-secondary:    #00ff88;
  --color-secondary-dk: #00cc6a;
  --color-accent:       #ffcc00;
  --color-accent-light: #332900;
  --color-danger:       #ff4444;
  --color-success:      #00ff88;
  --color-warning:      #ffcc00;
}

/* ── Font Scale Overrides ── */
body.font-lg  { --font-scale: 1.15; }
body.font-xl  { --font-scale: 1.3; }
body.font-sm  { --font-scale: 0.9; }

/* ═══════════════════════════════════════════
   RESET & BASE
═══════════════════════════════════════════ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: calc(16px * var(--font-scale));
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Skip Link ── */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: var(--text-base);
  z-index: 9999;
  text-decoration: none;
  transition: top var(--transition-fast);
}
.skip-link:focus {
  top: var(--space-4);
}

/* ── Focus Styles (WCAG 2.4.7) ── */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}
:focus:not(:focus-visible) { outline: none; }

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-ui);
  line-height: 1.3;
  color: var(--color-text);
  font-weight: 700;
}
h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

p { margin-bottom: var(--space-4); }
p:last-child { margin-bottom: 0; }

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
a:hover { color: var(--color-primary-dark); }

/* ═══════════════════════════════════════════
   TOPBAR
═══════════════════════════════════════════ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  height: var(--topbar-height);
}

.topbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  flex-shrink: 0;
}
.brand-icon { font-size: var(--text-2xl); }
.brand-name {
  font-family: var(--font-ui);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.main-nav {
  display: flex;
  gap: var(--space-2);
  flex: 1;
  justify-content: center;
}

.nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: var(--space-2) var(--space-4);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-width: 64px;
}
.nav-btn:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary-light);
}
.nav-btn.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.nav-icon { font-size: var(--text-lg); }
.nav-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; }

.topbar-controls {
  display: flex;
  gap: var(--space-2);
  flex-shrink: 0;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}
.icon-btn:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ═══════════════════════════════════════════
   MAIN CONTENT
═══════════════════════════════════════════ */
.main-content {
  flex: 1;
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: var(--space-8) var(--space-6);
}

/* ── Views ── */
.view { display: none; }
.view.active { display: block; }

.view-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 2px solid var(--color-border);
}
.view-header h1 { margin: 0; }

/* ═══════════════════════════════════════════
   HOME / HERO
═══════════════════════════════════════════ */
.hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-8);
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-surface) 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-12) var(--space-10);
  margin-bottom: var(--space-10);
  border: 2px solid var(--color-primary-light);
}

.hero-text h1 {
  font-size: var(--text-4xl);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 520px;
  margin-bottom: var(--space-8);
}
.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.brain-animation {
  font-size: 7rem;
  animation: pulse 3s ease-in-out infinite;
  filter: drop-shadow(0 4px 12px rgba(37,99,235,0.3));
}
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}

/* ── Feature Grid ── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-10);
}

.feature-card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
}
.feature-card:hover, .feature-card:focus {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.feature-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-3);
  display: block;
}
.feature-card h2 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-2);
}
.feature-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.difficulty-badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.difficulty-badge.easy    { background: var(--color-success-light); color: var(--color-success); }
.difficulty-badge.medium  { background: var(--color-warning-light); color: var(--color-warning); }
.difficulty-badge.hard    { background: var(--color-danger-light);  color: var(--color-danger); }
.difficulty-badge.iq      { background: var(--color-primary-light); color: var(--color-primary); }
.difficulty-badge.report  { background: var(--color-accent-light);  color: var(--color-accent); }

/* ═══════════════════════════════════════════
   BUTTONS
═══════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  font-family: var(--font-ui);
  font-size: var(--text-base);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  min-height: 48px; /* WCAG touch target */
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}
.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--color-secondary);
  color: #ffffff;
  border-color: var(--color-secondary);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--color-secondary-dk);
  border-color: var(--color-secondary-dk);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover:not(:disabled) {
  background: var(--color-primary-light);
}

.btn-danger {
  background: var(--color-danger);
  color: #ffffff;
  border-color: var(--color-danger);
}

.btn-large {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
  min-height: 56px;
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-family: var(--font-ui);
  font-size: var(--text-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}
.btn-back:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

/* ═══════════════════════════════════════════
   CARDS & SURFACES
═══════════════════════════════════════════ */
.card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 2px solid var(--color-border);
}

/* ═══════════════════════════════════════════
   FORMS
═══════════════════════════════════════════ */
.form-group { margin-bottom: var(--space-5); }

.form-label {
  display: block;
  font-weight: 700;
  font-size: var(--text-base);
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--transition-fast);
  min-height: 48px;
}
.form-input:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: var(--shadow-focus);
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-base);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
}
.checkbox-label:hover { background: var(--color-surface-2); }
.checkbox-label input[type="checkbox"] {
  width: 22px;
  height: 22px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

/* ── Profile Setup ── */
.profile-setup {
  max-width: 520px;
  margin: var(--space-8) auto;
}
.profile-setup h2 { margin-bottom: var(--space-4); }

/* ═══════════════════════════════════════════
   GAMES
═══════════════════════════════════════════ */
.game-selector {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}

.game-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-8) var(--space-6);
  background: var(--color-surface);
  border: 3px solid var(--color-border);
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all var(--transition-normal);
  font-family: var(--font-ui);
}
.game-tile:hover, .game-tile:focus {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.game-tile-icon { font-size: 3rem; }
.game-tile-name { font-size: var(--text-lg); font-weight: 700; color: var(--color-text); }
.game-tile-desc { font-size: var(--text-sm); color: var(--color-text-muted); }

/* ── Game Container ── */
.game-container { animation: fadeIn var(--transition-normal); }

.game-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}
.game-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  flex: 1;
}
.game-title-display {
  font-family: var(--font-ui);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
}
.game-stat-pill {
  background: var(--color-surface-2);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-1) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 700;
  font-family: var(--font-ui);
  color: var(--color-text);
}

.game-area {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  min-height: 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.game-message {
  margin-top: var(--space-4);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  font-size: var(--text-lg);
  font-weight: 700;
  text-align: center;
  background: var(--color-success-light);
  color: var(--color-success);
  border: 2px solid var(--color-success);
}
.game-message.error {
  background: var(--color-danger-light);
  color: var(--color-danger);
  border-color: var(--color-danger);
}
.game-message.info {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* ── Memory Match ── */
.memory-grid {
  display: grid;
  gap: var(--space-3);
  width: 100%;
  max-width: 560px;
}
.memory-grid.grid-4x4 { grid-template-columns: repeat(4, 1fr); }
.memory-grid.grid-4x3 { grid-template-columns: repeat(4, 1fr); }
.memory-grid.grid-3x4 { grid-template-columns: repeat(3, 1fr); }

.memory-card {
  aspect-ratio: 1;
  border: 3px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  transition: all var(--transition-normal);
  position: relative;
  transform-style: preserve-3d;
  min-height: 80px;
}
.memory-card:hover:not(.flipped):not(.matched) {
  background: var(--color-primary-dark);
  transform: scale(1.05);
}
.memory-card.flipped, .memory-card.matched {
  background: var(--color-surface);
  border-color: var(--color-primary);
}
.memory-card.matched {
  border-color: var(--color-success);
  background: var(--color-success-light);
  cursor: default;
}
.memory-card .card-face {
  font-size: 2rem;
  user-select: none;
}
.memory-card .card-back {
  color: transparent;
  font-size: 2rem;
}
.memory-card:not(.flipped):not(.matched) .card-face { display: none; }
.memory-card:not(.flipped):not(.matched) .card-back { display: block; color: rgba(255,255,255,0.3); }
.memory-card.flipped .card-back, .memory-card.matched .card-back { display: none; }
.memory-card.flipped .card-face, .memory-card.matched .card-face { display: block; }

/* ── Sequence Recall ── */
.sequence-display {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--space-6);
}
.sequence-btn {
  width: 90px;
  height: 90px;
  border-radius: var(--radius-lg);
  border: 3px solid transparent;
  cursor: pointer;
  font-size: var(--text-2xl);
  font-weight: 700;
  font-family: var(--font-ui);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}
.sequence-btn:hover { transform: scale(1.08); filter: brightness(1.1); }
.sequence-btn.active { transform: scale(1.15); filter: brightness(1.3); box-shadow: 0 0 20px currentColor; }
.sequence-btn.correct { box-shadow: 0 0 0 4px var(--color-success); }
.sequence-btn.wrong   { box-shadow: 0 0 0 4px var(--color-danger); animation: shake 0.4s; }

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  75% { transform: translateX(8px); }
}

/* ── Word Association ── */
.word-display {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: var(--space-6);
  padding: var(--space-6);
  background: var(--color-primary-light);
  border-radius: var(--radius-xl);
  width: 100%;
}
.word-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  width: 100%;
  max-width: 500px;
}
.word-option-btn {
  padding: var(--space-4) var(--space-6);
  border: 3px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  font-family: var(--font-ui);
  font-size: var(--text-lg);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 64px;
}
.word-option-btn:hover { border-color: var(--color-primary); background: var(--color-primary-light); color: var(--color-primary); }
.word-option-btn.correct { border-color: var(--color-success); background: var(--color-success-light); color: var(--color-success); }
.word-option-btn.wrong   { border-color: var(--color-danger);  background: var(--color-danger-light);  color: var(--color-danger); }

/* ── Attention Focus ── */
.attention-arena {
  position: relative;
  width: 100%;
  max-width: 600px;
  height: 380px;
  background: var(--color-surface-2);
  border-radius: var(--radius-xl);
  border: 2px solid var(--color-border);
  overflow: hidden;
}
.attention-target {
  position: absolute;
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  cursor: pointer;
  transition: transform var(--transition-fast);
  border: 3px solid transparent;
  user-select: none;
}
.attention-target:hover { transform: scale(1.1); }
.attention-target.target-correct { background: var(--color-success-light); border-color: var(--color-success); }
.attention-target.target-distractor { background: var(--color-danger-light); border-color: var(--color-danger); }

/* ── Progress Bar ── */
.progress-bar-wrap {
  width: 100%;
  height: 12px;
  background: var(--color-surface-2);
  border-radius: var(--radius-full);
  overflow: hidden;
  border: 1px solid var(--color-border);
  margin: var(--space-4) 0;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

/* ── Game Intro / Result Screens ── */
.game-intro, .game-result {
  text-align: center;
  max-width: 480px;
  margin: 0 auto;
}
.game-intro h2, .game-result h2 { margin-bottom: var(--space-4); }
.game-intro p, .game-result p { color: var(--color-text-muted); margin-bottom: var(--space-6); }
.result-score {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-primary);
  margin: var(--space-4) 0;
}
.result-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin: var(--space-6) 0;
}
.result-stat {
  background: var(--color-surface-2);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
}
.result-stat-value { font-size: var(--text-2xl); font-weight: 700; color: var(--color-primary); }
.result-stat-label { font-size: var(--text-xs); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.05em; }

/* ═══════════════════════════════════════════
   IQ TEST
═══════════════════════════════════════════ */
.iq-container { max-width: 720px; margin: 0 auto; }

.iq-intro { text-align: center; padding: var(--space-8); }
.iq-intro h2 { margin-bottom: var(--space-4); }
.iq-intro p { color: var(--color-text-muted); margin-bottom: var(--space-4); }

.iq-sections-overview {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin: var(--space-6) 0;
}
.iq-section-pill {
  background: var(--color-surface-2);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
  border: 2px solid var(--color-border);
}
.iq-section-pill .pill-icon { font-size: 1.8rem; display: block; margin-bottom: var(--space-2); }
.iq-section-pill .pill-name { font-weight: 700; font-size: var(--text-sm); }
.iq-section-pill .pill-count { font-size: var(--text-xs); color: var(--color-text-muted); }

.iq-question-wrap {
  animation: fadeIn var(--transition-normal);
}
.iq-progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 600;
}
.iq-section-label {
  background: var(--color-primary-light);
  color: var(--color-primary);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
}

.iq-question-card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  margin-bottom: var(--space-6);
}
.iq-question-text {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-6);
  line-height: 1.5;
}
.iq-pattern-display {
  display: grid;
  gap: var(--space-2);
  margin: var(--space-4) 0 var(--space-6);
  justify-content: center;
}
.iq-pattern-display.grid-3 { grid-template-columns: repeat(3, 72px); }
.iq-pattern-display.grid-4 { grid-template-columns: repeat(4, 64px); }
.iq-pattern-cell {
  width: 72px;
  height: 72px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  background: var(--color-surface-2);
  font-weight: 700;
}
.iq-pattern-cell.blank {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  border-style: dashed;
  color: var(--color-primary);
  font-size: var(--text-2xl);
}

.iq-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}
.iq-option-btn {
  padding: var(--space-4) var(--space-5);
  border: 3px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  font-family: var(--font-ui);
  font-size: var(--text-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
  min-height: 56px;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.iq-option-btn:hover { border-color: var(--color-primary); background: var(--color-primary-light); }
.iq-option-btn.selected { border-color: var(--color-primary); background: var(--color-primary-light); color: var(--color-primary); }
.iq-option-btn.correct  { border-color: var(--color-success); background: var(--color-success-light); color: var(--color-success); }
.iq-option-btn.wrong    { border-color: var(--color-danger);  background: var(--color-danger-light);  color: var(--color-danger); }
.option-letter {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: var(--color-surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: 700;
  flex-shrink: 0;
}

.iq-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-4);
}
.iq-timer {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text-muted);
  font-family: var(--font-ui);
}
.iq-timer.warning { color: var(--color-danger); animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0.4; } }

/* IQ Results */
.iq-result {
  text-align: center;
  padding: var(--space-8);
}
.iq-score-circle {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: var(--space-6) auto;
  box-shadow: var(--shadow-lg);
}
.iq-score-number { font-size: var(--text-4xl); font-weight: 700; color: #fff; line-height: 1; }
.iq-score-label  { font-size: var(--text-sm); color: rgba(255,255,255,0.85); font-weight: 600; }
.iq-classification {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.iq-subscores {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin: var(--space-6) 0;
}
.iq-subscore-card {
  background: var(--color-surface-2);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
  border: 2px solid var(--color-border);
}
.iq-subscore-value { font-size: var(--text-2xl); font-weight: 700; color: var(--color-primary); }
.iq-subscore-name  { font-size: var(--text-xs); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.05em; margin-top: var(--space-1); }

/* ═══════════════════════════════════════════
   DASHBOARD
═══════════════════════════════════════════ */
.dashboard-container { max-width: 900px; margin: 0 auto; }

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}
.stat-card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  text-align: center;
}
.stat-card-value { font-size: var(--text-3xl); font-weight: 700; color: var(--color-primary); }
.stat-card-label { font-size: var(--text-sm); color: var(--color-text-muted); margin-top: var(--space-1); }

.chart-wrap {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}
.chart-title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

/* SVG Charts */
.chart-svg { width: 100%; overflow: visible; }
.chart-bar { transition: opacity var(--transition-fast); cursor: pointer; }
.chart-bar:hover { opacity: 0.8; }
.chart-axis-label { font-family: var(--font-ui); font-size: 11px; fill: var(--color-text-muted); }
.chart-value-label { font-family: var(--font-ui); font-size: 11px; font-weight: 700; fill: var(--color-text); }
.chart-line { fill: none; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.chart-dot { cursor: pointer; }

/* Radar Chart */
.radar-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}
.radar-legend { display: flex; flex-direction: column; gap: var(--space-3); }
.radar-legend-item { display: flex; align-items: center; gap: var(--space-2); font-size: var(--text-sm); }
.radar-legend-dot { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; }

/* Session History */
.session-list { display: flex; flex-direction: column; gap: var(--space-3); }
.session-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-surface-2);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}
.session-icon { font-size: 1.5rem; flex-shrink: 0; }
.session-info { flex: 1; }
.session-name { font-weight: 700; font-size: var(--text-base); }
.session-date { font-size: var(--text-xs); color: var(--color-text-muted); }
.session-score { font-size: var(--text-lg); font-weight: 700; color: var(--color-primary); }

/* ═══════════════════════════════════════════
   DIAGNOSTIC REPORT
═══════════════════════════════════════════ */
.report-container { max-width: 800px; margin: 0 auto; }

.report-header-card {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  color: #fff;
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.report-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  flex-shrink: 0;
}
.report-user-name { font-size: var(--text-2xl); font-weight: 700; margin-bottom: var(--space-1); }
.report-date { font-size: var(--text-sm); opacity: 0.85; }
.report-overall-score {
  margin-left: auto;
  text-align: center;
  background: rgba(255,255,255,0.15);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-6);
}
.report-overall-value { font-size: var(--text-4xl); font-weight: 700; }
.report-overall-label { font-size: var(--text-xs); opacity: 0.85; text-transform: uppercase; letter-spacing: 0.05em; }

.report-section {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-5);
}
.report-section-title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.report-section-icon { font-size: 1.5rem; }

/* Domain Score Bars */
.domain-scores { display: flex; flex-direction: column; gap: var(--space-4); }
.domain-score-row { display: flex; align-items: center; gap: var(--space-4); }
.domain-score-name { width: 160px; font-weight: 600; font-size: var(--text-sm); flex-shrink: 0; }
.domain-score-bar-wrap { flex: 1; height: 20px; background: var(--color-surface-2); border-radius: var(--radius-full); overflow: hidden; border: 1px solid var(--color-border); }
.domain-score-bar { height: 100%; border-radius: var(--radius-full); transition: width 1s ease; }
.domain-score-value { width: 48px; text-align: right; font-weight: 700; font-size: var(--text-sm); flex-shrink: 0; }

/* Flags / Observations */
.flag-list { display: flex; flex-direction: column; gap: var(--space-3); }
.flag-item {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: 2px solid;
}
.flag-item.flag-concern { background: var(--color-danger-light); border-color: var(--color-danger); }
.flag-item.flag-watch   { background: var(--color-warning-light); border-color: var(--color-warning); }
.flag-item.flag-good    { background: var(--color-success-light); border-color: var(--color-success); }
.flag-icon { font-size: 1.3rem; flex-shrink: 0; }
.flag-text { font-size: var(--text-sm); line-height: 1.6; }
.flag-text strong { display: block; margin-bottom: var(--space-1); }

/* Recommendations */
.recommendation-list { display: flex; flex-direction: column; gap: var(--space-3); }
.recommendation-item {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-primary-light);
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-primary-light);
}
.rec-number {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: 700;
  flex-shrink: 0;
}
.rec-text { font-size: var(--text-sm); line-height: 1.6; }

.disclaimer-box {
  background: var(--color-accent-light);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-lg);
  padding: var(--color-accent) var(--space-5);
  padding: var(--space-4) var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-6);
}

/* ═══════════════════════════════════════════
   EMPTY STATES
═══════════════════════════════════════════ */
/* ── Profile Setup Card ── */
.profile-setup-card {
  background: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  max-width: 560px;
  margin: var(--space-8) auto 0;
  box-shadow: var(--shadow-lg);
  animation: fadeIn var(--transition-slow) ease;
}
.profile-setup-card h2 { margin-bottom: var(--space-3); }
.profile-setup-card p  { color: var(--color-text-muted); margin-bottom: var(--space-6); }

/* ── Streak Badge ── */
.streak-badge {
  display: inline-block;
  background: linear-gradient(135deg, #f97316, #ef4444);
  color: #fff;
  font-weight: 700;
  font-size: var(--text-sm);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
  box-shadow: 0 2px 8px rgba(239,68,68,0.35);
}

/* ── Feature card as button ── */
button.feature-card {
  text-align: left;
  cursor: pointer;
  font-family: var(--font-body);
  width: 100%;
}
button.feature-card h2 { pointer-events: none; }
button.feature-card p  { pointer-events: none; }

.empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-8);
  color: var(--color-text-muted);
}
.empty-state-icon { font-size: 4rem; margin-bottom: var(--space-4); display: block; }
.empty-state h3 { margin-bottom: var(--space-3); color: var(--color-text); }

/* ═══════════════════════════════════════════
   UTILITIES
═══════════════════════════════════════════ */
.hidden { display: none !important; }
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-4 { gap: var(--space-4); }
.w-full { width: 100%; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes slideIn {
  from { opacity: 0; transform: translateX(-16px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ── Spinner ── */
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: var(--space-8) auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ═══════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════ */
.app-footer {
  background: var(--color-surface);
  border-top: 2px solid var(--color-border);
  padding: var(--space-4) var(--space-6);
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ═══════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════ */
@media (max-width: 768px) {
  :root { --topbar-height: 60px; }

  .topbar-inner { padding: 0 var(--space-4); gap: var(--space-3); }
  .brand-name { display: none; }
  .nav-label  { display: none; }
  .nav-btn    { min-width: 44px; padding: var(--space-2); }
  .topbar-controls { gap: var(--space-1); }
  .icon-btn { width: 36px; height: 36px; font-size: var(--text-xs); }

  .main-content { padding: var(--space-5) var(--space-4); }

  .hero {
    grid-template-columns: 1fr;
    padding: var(--space-8) var(--space-6);
    text-align: center;
  }
  .hero-text h1 { font-size: var(--text-2xl); }
  .hero-visual { display: none; }
  .hero-actions { justify-content: center; }

  .feature-grid { grid-template-columns: 1fr; }
  .game-selector { grid-template-columns: repeat(2, 1fr); }

  .iq-sections-overview { grid-template-columns: 1fr; }
  .iq-subscores { grid-template-columns: 1fr; }
  .iq-options { grid-template-columns: 1fr; }

  .dashboard-grid { grid-template-columns: repeat(2, 1fr); }
  .result-stats { grid-template-columns: 1fr; }

  .report-header-card { flex-direction: column; text-align: center; }
  .report-overall-score { margin-left: 0; }
  .domain-score-name { width: 120px; }

  .word-options { grid-template-columns: 1fr; }
  .sequence-btn { width: 72px; height: 72px; }
}

@media (max-width: 480px) {
  .game-selector { grid-template-columns: 1fr; }
  .memory-grid.grid-4x4 { grid-template-columns: repeat(4, 1fr); gap: var(--space-2); }
  .memory-card { min-height: 60px; font-size: 1.4rem; }
}

/* ── Print Styles for Report ── */
@media print {
  .topbar, .app-footer, .btn-back, .btn { display: none !important; }
  .view { display: block !important; }
  #view-report { display: block !important; }
  body { background: white; }
}