/* CognitIQ — Main Stylesheet */
/* Color palette: deep navy + electric blue + clean white */

:root {
  --bg: #0d1117;
  --bg-2: #161b22;
  --bg-3: #1c2128;
  --surface: #21262d;
  --surface-2: #2d333b;
  --border: #30363d;
  --border-2: #444c56;
  --text: #e6edf3;
  --text-2: #8b949e;
  --text-3: #6e7681;
  --accent: #3b82f6;
  --accent-glow: rgba(59, 130, 246, 0.2);
  --accent-2: #60a5fa;
  --success: #3fb950;
  --success-bg: rgba(63, 185, 80, 0.15);
  --danger: #f85149;
  --danger-bg: rgba(248, 81, 73, 0.15);
  --warning: #d29922;
  --warning-bg: rgba(210, 153, 34, 0.15);
  --purple: #a371f7;
  --purple-bg: rgba(163, 113, 247, 0.15);
  --gold: #e3b341;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.6);
  --transition: 0.2s ease;
  --max-w: 800px;
}

[data-theme="light"] {
  --bg: #f6f8fa;
  --bg-2: #ffffff;
  --bg-3: #f0f2f5;
  --surface: #ffffff;
  --surface-2: #f6f8fa;
  --border: #d0d7de;
  --border-2: #c6cdd5;
  --text: #1f2328;
  --text-2: #57606a;
  --text-3: #8c959f;
  --accent: #0969da;
  --accent-glow: rgba(9, 105, 218, 0.12);
  --accent-2: #218bff;
  --success: #1a7f37;
  --success-bg: rgba(26, 127, 55, 0.1);
  --danger: #cf222e;
  --danger-bg: rgba(207, 34, 46, 0.1);
  --warning: #9a6700;
  --warning-bg: rgba(154, 103, 0, 0.1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── PAGE TRANSITIONS ──────────────────────────────────────────────────── */
.page {
  display: none !important;
  min-height: 100vh;
  animation: fadeIn 0.4s ease;
}
.page.active           { display: block !important; }
#page-test.active      { display: flex  !important; }
#page-section-break.active {
  display: flex        !important;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInFast {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes countUp {
  from { transform: scale(0.5); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}
@keyframes shake {
  0%,100% { transform: translateX(0); }
  25%      { transform: translateX(-6px); }
  75%      { transform: translateX(6px); }
}
@keyframes glow {
  0%,100% { box-shadow: 0 0 20px var(--accent-glow); }
  50%      { box-shadow: 0 0 40px var(--accent-glow), 0 0 60px var(--accent-glow); }
}

/* ─── TYPOGRAPHY ────────────────────────────────────────────────────────── */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; letter-spacing: -0.02em; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1rem; }
p  { color: var(--text-2); }

.gradient-text {
  background: linear-gradient(135deg, var(--accent-2) 0%, var(--purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── BUTTONS ───────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  user-select: none;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.05);
  opacity: 0;
  transition: opacity var(--transition);
}
.btn:hover::after { opacity: 1; }
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 12px rgba(59,130,246,0.35);
}
.btn-primary:hover { background: #2563eb; box-shadow: 0 4px 20px rgba(59,130,246,0.5); transform: translateY(-1px); }

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--border-2); background: var(--surface-2); }

.btn-ghost {
  background: transparent;
  color: var(--text-2);
}
.btn-ghost:hover { color: var(--text); background: var(--surface); }

.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-success {
  background: var(--success);
  color: #fff;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}
.btn-xl {
  padding: 18px 44px;
  font-size: 1.15rem;
  border-radius: var(--radius-lg);
}
.btn-sm {
  padding: 7px 14px;
  font-size: 0.85rem;
}
.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
}

/* ─── NAVBAR ────────────────────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 60px;
  background: rgba(13,17,23,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 100;
}
[data-theme="light"] .navbar {
  background: rgba(246,248,250,0.9);
}
.navbar-brand {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text);
  text-decoration: none;
}
.navbar-brand span { color: var(--accent); }
.navbar-actions { display: flex; gap: 8px; align-items: center; }

/* ─── LANDING PAGE ──────────────────────────────────────────────────────── */
#page-landing {
  background: var(--bg);
}

.landing-hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px 60px;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-glow);
  border: 1px solid rgba(59,130,246,0.3);
  color: var(--accent-2);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 28px;
  letter-spacing: 0.02em;
}

.hero-title {
  max-width: 700px;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-2);
  max-width: 520px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 64px;
  justify-content: center;
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
  display: block;
  letter-spacing: -0.03em;
}
.stat-label { color: var(--text-3); font-size: 0.85rem; margin-top: 4px; }

/* Feature cards */
.features-section {
  padding: 80px 24px;
  max-width: 1100px;
  margin: 0 auto;
}
.section-label {
  text-align: center;
  color: var(--accent-2);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}
.section-title {
  text-align: center;
  margin-bottom: 48px;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}
.feature-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--shadow);
  transform: translateY(-2px);
}
.feature-icon {
  width: 48px; height: 48px;
  background: var(--accent-glow);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}
.feature-card h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--text); }
.feature-card p { font-size: 0.9rem; color: var(--text-2); }

/* Categories grid on landing */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-top: 32px;
}
.category-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 10px 20px;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-2);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

/* ─── ONBOARDING PAGE ────────────────────────────────────────────────────── */
#page-onboard {
  padding-top: 60px;
}
.onboard-container {
  max-width: 640px;
  margin: 0 auto;
  padding: 60px 24px;
}
.onboard-step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
}
.onboard-step h2 { margin-bottom: 12px; }
.onboard-step .subtitle { margin-bottom: 32px; font-size: 1rem; }

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 24px 0;
}
.info-item {
  background: var(--bg-3);
  border-radius: var(--radius);
  padding: 16px;
}
.info-item .label { font-size: 0.8rem; color: var(--text-3); margin-bottom: 4px; display: block; }
.info-item .value { font-size: 1.1rem; font-weight: 700; color: var(--text); }

.rules-list {
  list-style: none;
  margin: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.rules-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.95rem;
  color: var(--text-2);
}
.rules-list li .rule-icon {
  width: 24px; height: 24px;
  background: var(--accent-glow);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
  color: var(--accent-2);
  margin-top: 1px;
}

.name-input {
  width: 100%;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 1rem;
  color: var(--text);
  font-family: var(--font);
  margin-top: 8px;
  transition: border-color var(--transition);
  outline: none;
}
.name-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }

.onboard-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 32px;
  gap: 12px;
}

/* ─── TEST INTERFACE ─────────────────────────────────────────────────────── */
#page-test {
  flex-direction: column;
}

.test-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 64px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 20px;
  z-index: 50;
}
.test-brand {
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.03em;
  flex-shrink: 0;
  color: var(--text);
}
.test-brand span { color: var(--accent); }

.test-progress-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.test-progress-labels {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--text-3);
}
.test-progress-bar {
  height: 4px;
  background: var(--surface-2);
  border-radius: 100px;
  overflow: hidden;
}
.test-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--purple));
  border-radius: 100px;
  transition: width 0.4s ease;
}

.test-timer {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text);
  flex-shrink: 0;
  min-width: 56px;
  justify-content: flex-end;
}
.test-timer.warning { color: var(--warning); animation: pulse 1s infinite; }
.test-timer.danger  { color: var(--danger);  animation: pulse 0.5s infinite; }

.test-body {
  flex: 1;
  padding: 88px 24px 120px;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

/* Category badge */
.category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
}
.cat-pattern  { background: rgba(59,130,246,0.15); color: #60a5fa; }
.cat-logical  { background: rgba(163,113,247,0.15); color: #c084fc; }
.cat-spatial  { background: rgba(251,146,60,0.15); color: #fb923c; }
.cat-numerical{ background: rgba(52,211,153,0.15); color: #34d399; }
.cat-verbal   { background: rgba(251,191,36,0.15); color: #fbbf24; }
.cat-memory   { background: rgba(239,68,68,0.15); color: #f87171; }
.cat-sequence { background: rgba(167,243,208,0.15); color: #6ee7b7; }
.cat-abstract { background: rgba(216,180,254,0.15); color: #c084fc; }

/* Question card */
.question-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px;
  margin-bottom: 24px;
  animation: slideUp 0.35s ease;
}
.q-number {
  font-size: 0.82rem;
  color: var(--text-3);
  font-weight: 600;
  margin-bottom: 8px;
}
.q-text {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 4px;
  white-space: pre-line;
}
.q-instruction {
  font-size: 0.88rem;
  color: var(--text-3);
  margin-top: 6px;
  font-style: italic;
}

/* Matrix display */
.matrix-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin: 28px auto;
  max-width: 300px;
}
.matrix-cell {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 8px;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.matrix-cell.missing {
  border: 2px dashed var(--border-2);
  background: var(--bg);
  position: relative;
}
.matrix-cell.missing::after {
  content: '?';
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-3);
}
.q-svg {
  width: 100%;
  height: 100%;
  color: var(--text);
}

/* Sequence visual */
.seq-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 24px 0;
  flex-wrap: wrap;
  justify-content: center;
}
.seq-item {
  width: 70px; height: 70px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-3);
}
.seq-arrow {
  color: var(--text-3);
  font-size: 1.2rem;
}

/* Memory stimulus */
.memory-stimulus {
  text-align: center;
  padding: 32px;
}
.memory-sequence {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 24px 0;
}
.memory-item {
  width: 56px; height: 56px;
  background: var(--accent);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
}
.memory-wordlist {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin: 24px 0;
}
.memory-word {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 20px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}
.memory-countdown {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  font-family: var(--font-mono);
  margin-top: 16px;
}
.memory-label {
  color: var(--text-2);
  font-size: 0.9rem;
}

/* Answer options */
.options-grid {
  display: grid;
  gap: 12px;
}
.options-grid.text-options {
  grid-template-columns: 1fr;
}
.options-grid.visual-options {
  grid-template-columns: repeat(2, 1fr);
}

.option-btn {
  background: var(--bg-3);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 0;
  text-align: left;
  font-family: var(--font);
  color: var(--text);
  overflow: hidden;
  position: relative;
}
.option-btn:hover {
  border-color: var(--accent);
  background: var(--surface);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(59,130,246,0.15);
}
.option-btn.selected {
  border-color: var(--accent);
  background: var(--accent-glow);
  box-shadow: 0 0 0 1px var(--accent), 0 4px 16px rgba(59,130,246,0.2);
}
.option-btn.correct {
  border-color: var(--success);
  background: var(--success-bg);
}
.option-btn.incorrect {
  border-color: var(--danger);
  background: var(--danger-bg);
  animation: shake 0.3s ease;
}
.option-btn.revealed { pointer-events: none; }

/* Text option layout */
.option-btn.text-option {
  padding: 14px 18px;
}
.option-letter {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-right: 14px;
  transition: all var(--transition);
}
.option-btn.selected .option-letter { background: var(--accent); border-color: var(--accent); color: #fff; }
.option-btn.correct .option-letter  { background: var(--success); border-color: var(--success); color: #fff; }
.option-btn.incorrect .option-letter{ background: var(--danger);  border-color: var(--danger);  color: #fff; }
.option-text { font-size: 0.95rem; font-weight: 500; line-height: 1.4; }

/* Visual option layout */
.option-btn.visual-option {
  flex-direction: column;
  padding: 12px;
  gap: 8px;
  aspect-ratio: 1;
  justify-content: center;
  align-items: center;
}
.option-btn.visual-option .option-letter {
  position: absolute;
  top: 8px; left: 8px;
  margin: 0;
}
.option-visual {
  width: 80%; max-width: 100px;
  aspect-ratio: 1;
}
.option-visual .q-svg { width: 100%; height: 100%; }

/* Test footer */
.test-footer {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  z-index: 50;
}
.footer-left { display: flex; gap: 8px; }
.footer-right { display: flex; gap: 12px; align-items: center; }
.difficulty-dots {
  display: flex;
  gap: 4px;
  align-items: center;
}
.diff-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border-2);
}
.diff-dot.active { background: var(--accent); }
.diff-dot.active:nth-child(2) { background: var(--warning); }
.diff-dot.active:nth-child(3) { background: var(--danger); }

/* Section break */
#page-section-break {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}
.section-break-card {
  max-width: 520px;
  text-align: center;
  padding: 48px 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  margin: 24px;
  animation: slideUp 0.4s ease;
}
.section-break-icon {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--accent-glow);
  border: 2px solid rgba(59,130,246,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 24px;
}
.section-break-card h2 { margin-bottom: 12px; }
.section-break-card p { margin-bottom: 32px; max-width: 380px; margin-left: auto; margin-right: auto; }
.mini-progress {
  background: var(--bg-3);
  height: 6px;
  border-radius: 100px;
  overflow: hidden;
  margin: 24px 0;
}
.mini-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--purple));
  border-radius: 100px;
}

/* ─── RESULTS PAGE ───────────────────────────────────────────────────────── */
#page-results {
  padding-top: 0;
  background: var(--bg);
}
.results-header {
  background: linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
  padding: 60px 24px 48px;
  text-align: center;
}
.results-header h1 { margin-bottom: 8px; }
.results-header p { color: var(--text-2); }

.iq-score-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 32px 0;
}
.iq-number {
  font-size: clamp(5rem, 15vw, 9rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1;
  background: linear-gradient(135deg, var(--accent-2), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: countUp 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.iq-label {
  font-size: 1.1rem;
  color: var(--text-3);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 8px;
}
.iq-classification {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  margin-top: 12px;
}
.percentile-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-glow);
  border: 1px solid rgba(59,130,246,0.3);
  color: var(--accent-2);
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 700;
  margin-top: 16px;
}

/* Results body */
.results-body {
  max-width: 900px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}
.results-stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
}
.results-stat .stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.03em;
  display: block;
}
.results-stat .stat-label {
  font-size: 0.82rem;
  color: var(--text-3);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Chart panels */
.results-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  margin-bottom: 24px;
}
.panel-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.panel-title::before {
  content: '';
  width: 3px;
  height: 18px;
  background: var(--accent);
  border-radius: 100px;
}

/* Section bars */
.section-bars { display: flex; flex-direction: column; gap: 14px; }
.section-bar-item { display: flex; align-items: center; gap: 12px; }
.section-bar-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-2);
  min-width: 130px;
  text-align: right;
}
.section-bar-track {
  flex: 1;
  height: 10px;
  background: var(--bg-3);
  border-radius: 100px;
  overflow: hidden;
}
.section-bar-fill {
  height: 100%;
  border-radius: 100px;
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.section-bar-pct {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text);
  min-width: 36px;
}

/* Strengths/weaknesses */
.sw-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.sw-card {
  border-radius: var(--radius-lg);
  padding: 20px;
}
.sw-card.strengths { background: var(--success-bg); border: 1px solid rgba(63,185,80,0.2); }
.sw-card.weaknesses { background: var(--danger-bg); border: 1px solid rgba(248,81,73,0.2); }
.sw-card h4 { font-size: 0.9rem; margin-bottom: 12px; }
.sw-card.strengths h4 { color: var(--success); }
.sw-card.weaknesses h4 { color: var(--danger); }
.sw-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.sw-list li {
  font-size: 0.88rem;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 8px;
}
.sw-list li::before { content: '›'; font-weight: 700; }
.sw-card.strengths li::before { color: var(--success); }
.sw-card.weaknesses li::before { color: var(--danger); }

/* Canvas chart */
#radar-canvas {
  display: block;
  max-width: 360px;
  margin: 0 auto;
}

/* Question review */
.review-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.review-item {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  cursor: pointer;
  transition: border-color var(--transition);
}
.review-item:hover { border-color: var(--border-2); }
.review-item.correct-item { border-left: 3px solid var(--success); }
.review-item.incorrect-item { border-left: 3px solid var(--danger); }
.review-item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}
.review-q-text {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.review-status {
  font-size: 0.8rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 100px;
  flex-shrink: 0;
}
.review-status.ok  { background: var(--success-bg); color: var(--success); }
.review-status.bad { background: var(--danger-bg);  color: var(--danger); }
.review-status.skip{ background: var(--warning-bg); color: var(--warning); }
.review-explanation {
  font-size: 0.85rem;
  color: var(--text-2);
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
  display: none;
  line-height: 1.5;
}
.review-item.open .review-explanation { display: block; }

/* Results actions */
.results-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 40px;
}

/* Share modal */
.share-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px;
  text-align: center;
  max-width: 480px;
  margin: 0 auto;
}
.share-score-card {
  background: linear-gradient(135deg, #1e3a5f, #1a1f35);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin: 20px 0;
  color: #fff;
  font-family: var(--font);
}
.share-score-card .score { font-size: 3.5rem; font-weight: 900; color: #60a5fa; letter-spacing: -0.04em; }
.share-score-card .brand { font-size: 0.9rem; opacity: 0.6; margin-top: 4px; }

/* ─── CONFIDENCE BADGE ───────────────────────────────────────────────────── */
.confidence-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-top: 12px;
}
.conf-high   { background: var(--success-bg); color: var(--success); border: 1px solid var(--success); }
.conf-medium { background: var(--warning-bg); color: var(--warning); border: 1px solid var(--warning); }
.conf-low    { background: var(--danger-bg);  color: var(--danger);  border: 1px solid var(--danger); }

/* ─── ANTI-CHEAT REPORT ──────────────────────────────────────────────────── */
.ac-report { display: flex; flex-direction: column; gap: 8px; }
.ac-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 14px;
  background: var(--bg-3);
  border-radius: var(--radius);
  font-size: 0.9rem;
}
.ac-label { color: var(--text-2); }
.ac-value { font-weight: 700; }
.ac-ok   { color: var(--success); }
.ac-flag { color: var(--danger); }

/* ─── PRACTICE RECS LIST ─────────────────────────────────────────────────── */
.practice-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 4px;
}
.practice-list li {
  font-size: 0.9rem;
  color: var(--text-2);
  padding-left: 20px;
  position: relative;
  line-height: 1.5;
}
.practice-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-2);
  font-weight: 700;
}

/* ─── DISCLAIMER ─────────────────────────────────────────────────────────── */
.disclaimer-text {
  font-size: 0.8rem;
  color: var(--text-3);
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin-top: 16px;
  line-height: 1.6;
}

/* ─── MODAL ─────────────────────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal-backdrop.active { display: flex; animation: fadeInFast 0.2s ease; }
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  animation: slideUp 0.3s ease;
}
.modal h3 { margin-bottom: 12px; }
.modal p  { margin-bottom: 28px; font-size: 0.95rem; }
.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
}

/* Scold modal — clicking backdrop does not dismiss it */
#modal-scold { pointer-events: auto; }
#modal-scold .modal {
  border-color: var(--danger);
  text-align: center;
}
.scold-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  color: var(--danger);
}
.scold-countdown-wrap {
  background: var(--danger-bg);
  border: 1px solid var(--danger);
  border-radius: var(--radius);
  padding: 10px 20px;
  margin: 16px 0;
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--danger);
}
.scold-countdown-wrap strong {
  font-size: 1.4rem;
  font-weight: 800;
  min-width: 2ch;
  text-align: center;
  font-family: var(--font-mono);
}
.scold-note {
  font-size: 0.78rem !important;
  color: var(--text-3) !important;
  margin-top: 16px !important;
  text-align: center;
}

/* ─── TAB SWITCH WARNING ─────────────────────────────────────────────────── */
.tab-warning {
  position: fixed;
  top: 70px; right: 16px;
  background: var(--danger-bg);
  border: 1px solid var(--danger);
  border-radius: var(--radius);
  padding: 10px 16px;
  font-size: 0.85rem;
  color: var(--danger);
  font-weight: 600;
  z-index: 150;
  animation: slideUp 0.3s ease;
  display: none;
}
.tab-warning.show { display: block; }

/* ─── DARK MODE TOGGLE ───────────────────────────────────────────────────── */
.theme-toggle {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition);
}
.theme-toggle:hover { border-color: var(--border-2); background: var(--surface-2); }

/* ─── LOADER ─────────────────────────────────────────────────────────────── */
.loader {
  display: inline-block;
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

/* ─── RESPONSIVE ─────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .test-header { padding: 0 16px; gap: 12px; }
  .test-body { padding: 84px 16px 110px; }
  .question-card { padding: 24px 18px; }
  .options-grid.visual-options { grid-template-columns: repeat(2, 1fr); }
  .matrix-grid { max-width: 260px; }
  .sw-grid { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 32px; }
  .onboard-step { padding: 28px 20px; }
  .results-body { padding: 32px 16px 60px; }
  .results-panel { padding: 20px; }
  .section-bar-name { min-width: 100px; font-size: 0.78rem; }
  .test-footer { padding: 12px 16px; }
  .navbar { padding: 0 16px; }
}

@media (max-width: 400px) {
  .options-grid.visual-options { grid-template-columns: repeat(2, 1fr); }
  .matrix-grid { max-width: 220px; }
}

/* ─── UTILITIES ─────────────────────────────────────────────────────────── */
.hidden  { display: none !important; }
.flex    { display: flex; }
.gap-8   { gap: 8px; }
.gap-12  { gap: 12px; }
.gap-16  { gap: 16px; }
.center  { text-align: center; }
.mt-8    { margin-top: 8px; }
.mt-16   { margin-top: 16px; }
.mt-24   { margin-top: 24px; }
.mt-32   { margin-top: 32px; }
.mb-8    { margin-bottom: 8px; }
.mb-16   { margin-bottom: 16px; }
.mb-24   { margin-bottom: 24px; }
.muted   { color: var(--text-3); font-size: 0.85rem; }
.divider {
  height: 1px;
  background: var(--border);
  margin: 24px 0;
}
.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--surface-2);
  color: var(--text-3);
  border: 1px solid var(--border);
}

/* ─── LEADERBOARD ────────────────────────────────────────────────────────── */
.leaderboard {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.lb-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 16px;
  background: var(--bg-3);
  border-radius: var(--radius);
  font-size: 0.9rem;
}
.lb-rank {
  width: 28px;
  font-weight: 800;
  color: var(--text-3);
  text-align: center;
}
.lb-rank.gold   { color: var(--gold); }
.lb-rank.silver { color: var(--text-2); }
.lb-rank.bronze { color: #cd7f32; }
.lb-name { flex: 1; font-weight: 600; color: var(--text); }
.lb-score{ font-weight: 800; color: var(--accent-2); font-family: var(--font-mono); }
.lb-time { font-size: 0.78rem; color: var(--text-3); }
.lb-row.current-user {
  background: var(--accent-glow);
  border: 1px solid rgba(59,130,246,0.3);
}