/* ============ Design tokens ============ */
:root {
  /* Background & surface */
  --bg: #f7f8fa;
  --bg-subtle: #eef0f4;
  --surface: #ffffff;
  --surface-2: #fafbfc;
  --surface-hover: #f3f4f6;

  /* Text */
  --text: #0f172a;
  --text-muted: #475569;
  --text-subtle: #94a3b8;

  /* Brand */
  --brand: #1e293b;
  --brand-hover: #0f172a;
  --accent: #4338ca;
  --accent-hover: #3730a3;
  --accent-soft: #eef2ff;

  /* Border */
  --border: #e2e8f0;
  --border-strong: #cbd5e1;

  /* Confidence palette - subtle */
  --conf-0-bg: #f1f5f9; --conf-0-fg: #94a3b8;
  --conf-1-bg: #fee2e2; --conf-1-fg: #b91c1c;
  --conf-2-bg: #fed7aa; --conf-2-fg: #c2410c;
  --conf-3-bg: #fef3c7; --conf-3-fg: #a16207;
  --conf-4-bg: #d1fae5; --conf-4-fg: #047857;
  --conf-5-bg: #dbeafe; --conf-5-fg: #1d4ed8;

  /* Semantic */
  --success: #059669;
  --success-bg: #d1fae5;
  --danger: #dc2626;
  --danger-bg: #fee2e2;
  --warning: #d97706;
  --warning-bg: #fef3c7;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05), 0 1px 2px rgba(15, 23, 42, 0.03);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 10px 20px -3px rgba(15, 23, 42, 0.08), 0 4px 8px -4px rgba(15, 23, 42, 0.05);

  /* Radii */
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 16px;
  --r-full: 9999px;

  /* Spacing scale (4/8 grid) */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.25rem;
  --s-6: 1.5rem;
  --s-8: 2rem;

  /* Type */
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", ui-monospace, Menlo, monospace;
}

/* ============ Reset / base ============ */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-feature-settings: "ss01", "cv11";
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

button { font-family: inherit; }

button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

::selection { background: var(--accent-soft); color: var(--brand); }

.app { min-height: 100vh; display: flex; flex-direction: column; }

/* ============ Icons ============ */
.icon {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
  stroke-width: 1.75;
}

.icon-inline {
  margin-right: 0.4em;
  vertical-align: -0.18em;
}

/* ============ Header ============ */
.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: var(--s-4) var(--s-6);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--s-5);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(140%) blur(8px);
  background: rgba(255, 255, 255, 0.92);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  flex-shrink: 0;
}

.header-brand .brand-mark {
  width: 36px;
  height: 36px;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--brand), var(--accent));
  color: white;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.header h1 {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.header h1 small {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0;
}

.header nav {
  display: flex;
  gap: var(--s-1);
  flex: 1;
  flex-wrap: wrap;
}

.header nav button {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid transparent;
  padding: 0.5rem 0.85rem;
  border-radius: var(--r-md);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: all 0.15s;
}

.header nav button:hover { background: var(--surface-hover); color: var(--text); }

.header nav button.active {
  background: var(--brand);
  color: white;
  border-color: var(--brand);
}

.header nav button.active .icon { color: white; }

.header-stats {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  background: var(--surface-2);
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
}

.header-stat {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
}

.header-stat-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

/* ============ Main ============ */
main {
  flex: 1;
  max-width: 1320px;
  margin: 0 auto;
  padding: var(--s-8) var(--s-6);
  width: 100%;
}

/* ============ Home ============ */
.home h2 {
  margin: 0 0 var(--s-2) 0;
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.home > p {
  color: var(--text-muted);
  font-size: 1rem;
  margin: 0 0 var(--s-5) 0;
}

.progress-bar {
  background: var(--bg-subtle);
  height: 10px;
  border-radius: var(--r-full);
  overflow: hidden;
  margin: var(--s-5) 0 var(--s-8);
  display: flex;
}

.bar-mastered { background: var(--success); height: 100%; transition: width 0.3s; }
.bar-seen { background: var(--warning); height: 100%; transition: width 0.3s; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--s-4);
  margin: 0 0 var(--s-8);
}

.card {
  background: var(--surface);
  padding: var(--s-5);
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.18s;
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--r-md);
  background: var(--accent-soft);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--s-2);
}

.card h3 {
  margin: 0;
  color: var(--text);
  font-size: 1rem;
  font-weight: 600;
}

.card p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.tips {
  background: var(--surface);
  padding: var(--s-5);
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
}

.tips-header {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  margin-bottom: var(--s-3);
}

.tips-header h4 {
  margin: 0;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 600;
}

.tips-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--r-md);
  background: var(--warning-bg);
  color: var(--warning);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.tips ol {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.tips li {
  margin-bottom: 0.4rem;
  line-height: 1.55;
}

.tips strong { color: var(--text); }

/* ============ Filters ============ */
.filters {
  background: var(--surface);
  padding: var(--s-4);
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  margin-bottom: var(--s-5);
}

.filters-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  align-items: center;
}

.search-wrap {
  position: relative;
  flex: 1;
  min-width: 200px;
}

.search-wrap .icon {
  position: absolute;
  left: 0.7rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-subtle);
  pointer-events: none;
}

.filters input,
.filters select {
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  font-size: 0.875rem;
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  transition: border-color 0.15s;
}

.filters input { padding-left: 2.25rem; width: 100%; }

.filters input:hover,
.filters select:hover { border-color: var(--border-strong); }

.filters input:focus,
.filters select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.adv-toggle {
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface);
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.15s;
}

.adv-toggle:hover { background: var(--surface-hover); border-color: var(--border-strong); color: var(--text); }

.filters-advanced {
  margin-top: var(--s-3);
  padding-top: var(--s-3);
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  align-items: center;
}

.filters-advanced label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.filters-advanced select {
  padding: 0.4rem 0.6rem;
  font-size: 0.85rem;
}

/* ============ Counter / Tags / Misc ============ */
.counter {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  margin-bottom: var(--s-4);
  font-size: 0.875rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.cat-tag {
  background: var(--accent-soft);
  color: var(--accent);
  padding: 0.2rem 0.55rem;
  border-radius: var(--r-sm);
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
}

.set-tag {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.2rem 0.5rem;
  border-radius: var(--r-sm);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  white-space: nowrap;
}

.tag {
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 0.18rem 0.5rem;
  border-radius: var(--r-sm);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-right: 0.25rem;
  display: inline-block;
}

.tag-with-icon {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.tagi { margin-top: var(--s-2); display: flex; flex-wrap: wrap; gap: 0.25rem; }

.seen-count {
  font-size: 0.78rem;
  color: var(--text-subtle);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.star-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.3rem;
  color: var(--text-subtle);
  transition: color 0.15s, transform 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-sm);
}

.star-btn:hover { color: #f59e0b; transform: scale(1.08); }
.star-btn.starred { color: #f59e0b; }
.star-btn.starred .icon { fill: currentColor; }

/* ============ Explain Switcher ============ */
.explain-switcher {
  display: inline-flex;
  gap: 2px;
  margin: var(--s-3) 0;
  background: var(--bg-subtle);
  padding: 3px;
  border-radius: var(--r-md);
}

.explain-switcher button {
  background: transparent;
  border: none;
  padding: 0.4rem 0.85rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.83rem;
  color: var(--text-muted);
  font-weight: 500;
  transition: all 0.15s;
  font-family: inherit;
}

.explain-switcher button.active {
  background: var(--surface);
  color: var(--text);
  font-weight: 600;
  box-shadow: var(--shadow-xs);
}

/* ============ Flashcard ============ */
.flashcard {
  background: var(--surface);
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  min-height: 280px;
  overflow: hidden;
}

.flashcard-clickable {
  padding: var(--s-6);
  cursor: pointer;
  min-height: 220px;
  transition: background 0.15s;
}

.flashcard-clickable:hover { background: var(--surface-2); }

.flashcard-actions {
  border-top: 1px solid var(--border);
  padding: var(--s-4) var(--s-5) var(--s-5);
  background: var(--surface-2);
}

.hint {
  font-size: 0.7rem;
  color: var(--text-subtle);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  margin-bottom: var(--s-3);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.flashcard h3 {
  font-size: 1.1rem;
  margin: 0 0 var(--s-4) 0;
  color: var(--text);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.5;
}

.krotka-text { font-size: 0.95rem; margin: 0 0 var(--s-3) 0; line-height: 1.65; color: var(--text); }

.show-full-btn {
  background: var(--brand);
  color: white;
  border: none;
  padding: 0.55rem 1rem;
  border-radius: var(--r-md);
  cursor: pointer;
  font-size: 0.83rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: background 0.15s;
}

.show-full-btn:hover { background: var(--brand-hover); }

/* ============ Confidence ============ */
.confidence { margin: var(--s-5) 0; }

.conf-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.conf-buttons {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.conf-btn {
  padding: 0.5rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 500;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--surface);
  color: var(--text-muted);
}

.conf-btn:hover {
  transform: translateY(-1px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.conf-btn.active {
  font-weight: 600;
  color: var(--text);
  border-width: 1.5px;
}

.conf-num {
  font-weight: 700;
  background: var(--bg-subtle);
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.conf-btn.active .conf-num { background: rgba(255,255,255,0.6); color: var(--text); }

/* ============ Nav buttons (flashcards) ============ */
.nav-buttons {
  display: flex;
  gap: var(--s-2);
  margin-top: var(--s-4);
}

.nav-buttons button {
  flex: 1;
  padding: 0.7rem;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface);
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text);
  font-weight: 500;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

.nav-buttons button:hover { background: var(--surface-hover); border-color: var(--accent); color: var(--accent); }

/* ============ Quiz ============ */
.quiz-card {
  background: var(--surface);
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  padding: var(--s-6);
}

.quiz-card h3 {
  margin: 0 0 var(--s-4) 0;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.5;
}

.hint-quiz {
  color: var(--text-muted);
  font-style: italic;
  font-size: 0.875rem;
  margin-bottom: var(--s-5);
}

.reveal-btn {
  background: var(--brand);
  color: white;
  border: none;
  padding: 0.7rem 1.5rem;
  border-radius: var(--r-md);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  margin-top: var(--s-4);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: background 0.15s;
}

.reveal-btn:hover { background: var(--brand-hover); }

.krotka-box {
  background: var(--accent-soft);
  padding: var(--s-4);
  border-radius: var(--r-md);
  border-left: 3px solid var(--accent);
  margin-bottom: var(--s-4);
}

.krotka-box strong { color: var(--accent); display: block; margin-bottom: 0.25rem; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; }
.krotka-box p { margin: 0; }

/* ============ Test ABCD ============ */
.test-score {
  display: flex;
  align-items: center;
  gap: var(--s-4);
  background: var(--surface);
  padding: 0.75rem 1rem;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  margin-bottom: var(--s-4);
  flex-wrap: wrap;
}

.score-stats {
  display: flex;
  gap: var(--s-4);
  flex: 1;
  font-size: 0.875rem;
  font-family: var(--font-mono);
}

.correct-stat {
  color: var(--success);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}
.wrong-stat {
  color: var(--danger);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}
.pct-stat {
  color: var(--accent);
  font-weight: 700;
  font-size: 1rem;
  font-family: var(--font);
}

.small-btn {
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface);
  cursor: pointer;
  font-size: 0.825rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: inherit;
  transition: all 0.15s;
}

.small-btn:hover { background: var(--surface-hover); color: var(--text); border-color: var(--border-strong); }

.test-card {
  background: var(--surface);
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  padding: var(--s-6);
}

.test-meta {
  display: flex;
  gap: 0.5rem;
  margin-bottom: var(--s-3);
  flex-wrap: wrap;
  align-items: center;
}

.parent-q-hint {
  font-size: 0.75rem;
  color: var(--text-subtle);
  font-style: italic;
  margin-left: 0.25rem;
}

.test-question {
  margin: var(--s-4) 0 var(--s-5) 0;
  font-size: 1.1rem;
  line-height: 1.55;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.005em;
}

.test-options { display: flex; flex-direction: column; gap: var(--s-2); }

.test-option {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--r-md);
  padding: 0.85rem 1rem;
  cursor: pointer;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.9rem;
  font-family: inherit;
  line-height: 1.5;
  color: var(--text);
  transition: all 0.15s;
  position: relative;
}

.test-option:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateX(2px);
}

.test-option:disabled { cursor: not-allowed; }

.test-option.correct {
  border-color: var(--success);
  background: var(--success-bg);
  color: #064e3b;
}

.test-option.wrong {
  border-color: var(--danger);
  background: var(--danger-bg);
  color: #7f1d1d;
}

.test-option.disabled { opacity: 0.5; }

.opt-letter {
  width: 28px;
  height: 28px;
  background: var(--bg-subtle);
  color: var(--text-muted);
  border-radius: var(--r-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.test-option:hover:not(:disabled) .opt-letter { background: var(--accent); color: white; }
.test-option.correct .opt-letter { background: var(--success); color: white; }
.test-option.wrong .opt-letter { background: var(--danger); color: white; }

.opt-text { flex: 1; }
.opt-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
}
.test-option.correct .opt-mark { color: var(--success); }
.test-option.wrong .opt-mark { color: var(--danger); }

.test-feedback {
  margin-top: var(--s-5);
  padding-top: var(--s-4);
  border-top: 1px solid var(--border);
}

.feedback-msg {
  padding: 0.75rem 1rem;
  border-radius: var(--r-md);
  font-weight: 600;
  margin-bottom: var(--s-3);
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.feedback-msg.ok { background: var(--success-bg); color: #064e3b; }
.feedback-msg.bad { background: var(--danger-bg); color: #7f1d1d; }

.test-explanation {
  background: var(--warning-bg);
  padding: 0.85rem 1rem;
  border-radius: var(--r-md);
  border-left: 3px solid var(--warning);
  margin: 0.75rem 0;
  font-size: 0.875rem;
  line-height: 1.55;
  color: #78350f;
}

.test-explanation strong { color: #451a03; display: inline; margin-right: 0.25rem; }

.next-btn { margin-top: var(--s-4); }

/* ============ List ============ */
.list { list-style: none; padding: 0; margin: 0; }

.list-item {
  background: var(--surface);
  margin-bottom: 0.4rem;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  display: flex;
  align-items: stretch;
  overflow: hidden;
  transition: all 0.15s;
}

.list-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.list-item-clickable {
  flex: 1;
  background: none;
  border: none;
  padding: 0.85rem 1rem;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text);
  transition: background 0.15s;
}

.list-item-clickable:hover { background: var(--surface-2); }

.list-row { display: flex; align-items: center; gap: 0.7rem; }

.conf-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.7rem;
  font-family: var(--font-mono);
}

.list-question { flex: 1; font-size: 0.92rem; line-height: 1.45; color: var(--text); font-weight: 500; }

.list-meta {
  margin-top: var(--s-2);
  margin-left: 2.4rem;
  font-size: 0.74rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  align-items: center;
}

.list-star {
  padding: 0 0.85rem;
  border-left: 1px solid var(--border);
  display: flex;
  align-items: center;
  background: var(--surface);
  cursor: pointer;
}

.list-star:hover { background: var(--surface-2); }

/* ============ Detail ============ */
.detail {
  background: var(--surface);
  padding: var(--s-6);
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
}

.back-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.875rem;
  margin-bottom: var(--s-4);
  padding: 0.3rem 0;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: inherit;
  transition: color 0.15s;
}

.back-btn:hover { color: var(--accent); }

.detail-header { display: flex; align-items: center; gap: var(--s-2); margin-bottom: var(--s-3); }

.detail h2 {
  margin: 0 0 var(--s-2) 0;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  line-height: 1.4;
}

.detail-section { margin: var(--s-6) 0; }

.detail-section h3 {
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 var(--s-3) 0;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.krotka {
  background: var(--accent-soft);
  padding: var(--s-4);
  border-radius: var(--r-md);
  border-left: 3px solid var(--accent);
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text);
}

.full-answer {
  margin-top: var(--s-3);
  padding: var(--s-4) var(--s-5);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text);
}

.full-answer h2 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin: var(--s-5) 0 var(--s-2);
  padding-bottom: 0.3rem;
  border-bottom: 1px solid var(--border);
  letter-spacing: -0.01em;
}

.full-answer h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
  margin: var(--s-4) 0 var(--s-2);
  border: none;
  padding: 0;
  display: block;
}

.full-answer h4 {
  font-size: 0.88rem;
  font-weight: 600;
  margin: var(--s-3) 0 var(--s-1);
  color: var(--text);
}

.full-answer ul, .full-answer ol { padding-left: 1.25rem; margin: 0.5rem 0; }
.full-answer li { margin: 0.25rem 0; }
.full-answer p { margin: 0.55rem 0; }
.full-answer table { border-collapse: collapse; width: 100%; margin: var(--s-3) 0; font-size: 0.85rem; }
.full-answer th, .full-answer td { border: 1px solid var(--border); padding: 0.4rem 0.6rem; text-align: left; }
.full-answer th { background: var(--bg-subtle); font-weight: 600; color: var(--text); }
.full-answer code {
  background: var(--bg-subtle);
  padding: 0.1rem 0.4rem;
  border-radius: var(--r-sm);
  font-size: 0.85em;
  font-family: var(--font-mono);
  color: var(--accent);
}
.full-answer hr { border: none; border-top: 1px solid var(--border); margin: var(--s-4) 0; }
.full-answer strong { color: var(--text); font-weight: 600; }

/* ============ Stats ============ */
.stats h2 {
  color: var(--text);
  margin: 0 0 var(--s-3) 0;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.conf-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 0.75rem;
  margin: var(--s-5) 0;
}

.conf-summary > div {
  padding: var(--s-4) var(--s-3);
  border-radius: var(--r-md);
  text-align: center;
  border: 1px solid;
}

.conf-summary strong {
  display: block;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.conf-summary span { font-size: 0.78rem; font-weight: 500; }

.cat-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--s-3) 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
  font-size: 0.85rem;
}

.cat-table th, .cat-table td { padding: 0.55rem 0.65rem; text-align: left; border-bottom: 1px solid var(--border); }
.cat-table tr:last-child td { border-bottom: none; }
.cat-table th { background: var(--surface-2); font-weight: 600; font-size: 0.78rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.cat-table td:not(:first-child), .cat-table th:not(:first-child) { text-align: center; font-family: var(--font-mono); }
.cat-table tr:hover { background: var(--surface-2); }

.reset-btn {
  background: var(--danger);
  color: white;
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: var(--r-md);
  cursor: pointer;
  margin-top: var(--s-4);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.875rem;
  transition: background 0.15s;
}

.reset-btn:hover { background: #b91c1c; }

/* ============ Loading / Error ============ */
.loading, .error, .empty {
  text-align: center;
  padding: var(--s-8) var(--s-4);
  color: var(--text-muted);
  font-size: 0.95rem;
}

.error {
  color: var(--danger);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  margin: var(--s-5) auto;
  max-width: 600px;
}

.error code {
  background: var(--bg-subtle);
  padding: 0.2rem 0.5rem;
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: 0.85em;
}

/* ============ Park button ============ */
.park-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 0.35rem 0.7rem;
  cursor: pointer;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: all 0.15s;
}
.park-btn:hover {
  border-color: var(--border-strong);
  color: var(--text);
  background: var(--surface-hover);
}
.park-btn.parked {
  background: #ecfeff;
  border-color: #67e8f9;
  color: #0e7490;
}
.park-btn.parked:hover {
  background: #cffafe;
}
.park-btn.compact {
  padding: 0.25rem 0.55rem;
  font-size: 0.74rem;
}

/* ============ Group quick add (popover) ============ */
.group-quick {
  position: relative;
  display: inline-block;
}
.group-quick-pop {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  padding: 0.65rem;
  min-width: 280px;
  z-index: 10;
}
.group-quick-label {
  font-size: 0.72rem;
  color: var(--text-subtle);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 0.4rem;
}
.group-quick-list {
  list-style: none;
  padding: 0;
  margin: 0 0 0.5rem 0;
  max-height: 200px;
  overflow-y: auto;
}
.group-quick-list li { margin: 0; }
.group-quick-list button {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  padding: 0.45rem 0.5rem;
  border-radius: var(--r-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text);
  font-family: inherit;
  transition: background 0.1s;
}
.group-quick-list button:hover:not(:disabled) { background: var(--surface-hover); }
.group-quick-list button:disabled { opacity: 0.5; cursor: default; }
.group-quick-count {
  margin-left: auto;
  font-size: 0.72rem;
  color: var(--text-subtle);
  font-family: var(--font-mono);
}
.group-quick-pop hr { border: none; border-top: 1px solid var(--border); margin: 0.5rem 0; }
.group-quick-create {
  display: flex;
  gap: 0.4rem;
}
.group-quick-create input {
  flex: 1;
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  font-size: 0.85rem;
  font-family: inherit;
}

/* ============ Parked indicator ============ */
.list-item.is-parked .list-item-clickable {
  opacity: 0.65;
}
.tag-parked {
  background: #ecfeff !important;
  color: #0e7490 !important;
  border-color: #67e8f9 !important;
}

.parked-banner {
  background: #ecfeff;
  border: 1px solid #67e8f9;
  border-radius: var(--r-md);
  padding: 0.7rem 1rem;
  margin: var(--s-4) 0;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: #0e7490;
}
.parked-banner span { flex: 1; }

/* ============ Multi-select bar (List) ============ */
.list-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--s-3);
  flex-wrap: wrap;
  gap: 0.5rem;
}
.counter-text { font-size: 0.875rem; color: var(--text-muted); font-weight: 500; }
.list-toolbar-actions { display: flex; gap: 0.4rem; flex-wrap: wrap; }

.multi-select-bar {
  background: var(--accent-soft);
  border: 1.5px solid var(--accent);
  border-radius: var(--r-md);
  padding: 0.7rem 1rem;
  margin-bottom: var(--s-3);
  display: flex;
  align-items: center;
  gap: var(--s-3);
  flex-wrap: wrap;
  position: sticky;
  top: 80px;
  z-index: 20;
  box-shadow: var(--shadow-md);
}
.multi-select-info {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--accent);
  font-size: 0.9rem;
}
.multi-select-info strong { font-size: 1rem; }
.multi-select-actions {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  flex-wrap: wrap;
  flex: 1;
}
.multi-select-actions select,
.multi-select-actions input {
  padding: 0.4rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  font-size: 0.83rem;
  font-family: inherit;
  background: var(--surface);
}

.list-checkbox {
  background: none;
  border: none;
  padding: 0 0.85rem;
  cursor: pointer;
  color: var(--text-subtle);
  display: flex;
  align-items: center;
  border-right: 1px solid var(--border);
  transition: color 0.15s;
}
.list-checkbox:hover { color: var(--accent); }
.list-item.is-selected { border-color: var(--accent); background: var(--accent-soft); }
.list-item.is-selected .list-checkbox { color: var(--accent); }

.list-actions {
  display: flex;
  align-items: center;
  border-left: 1px solid var(--border);
  background: var(--surface);
}
.icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem 0.65rem;
  color: var(--text-subtle);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s;
  border-radius: var(--r-sm);
  margin: 0.15rem;
}
.icon-btn:hover { color: var(--text); background: var(--surface-hover); }
.icon-btn.active { color: #0e7490; }

/* ============ Active group banner (filters) ============ */
.active-group-banner {
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  border-radius: var(--r-md);
  padding: 0.55rem 0.85rem;
  margin-bottom: var(--s-3);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--accent);
}
.active-group-banner span { flex: 1; }

/* ============ Check label (filters) ============ */
.check-label {
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.45rem !important;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  cursor: pointer;
  user-select: none;
}
.check-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* ============ Home: groups section ============ */
.home-groups { margin-bottom: var(--s-6); }
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--s-3);
}
.section-header h3 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.group-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.group-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 0.45rem 0.7rem;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.85rem;
  color: var(--text);
  transition: all 0.15s;
}
.group-chip:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}
.group-chip-name { font-weight: 500; }
.group-chip-count {
  background: var(--bg-subtle);
  color: var(--text-muted);
  padding: 0.05rem 0.4rem;
  border-radius: var(--r-full);
  font-size: 0.72rem;
  font-family: var(--font-mono);
}

/* ============ Groups view ============ */
.groups-view h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 0.3rem 0;
  letter-spacing: -0.02em;
}
.groups-view .muted { color: var(--text-muted); margin: 0 0 var(--s-4) 0; font-size: 0.92rem; }
.groups-view .small { font-size: 0.82rem; }

.group-create-bar {
  display: flex;
  gap: 0.5rem;
  background: var(--surface);
  padding: var(--s-3);
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  margin-bottom: 0.4rem;
}
.group-create-bar input {
  flex: 1;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  font-size: 0.9rem;
  font-family: inherit;
}

.groups-empty {
  text-align: center;
  padding: var(--s-8) var(--s-4);
  background: var(--surface);
  border: 1px dashed var(--border-strong);
  border-radius: var(--r-lg);
  color: var(--text-muted);
  margin-top: var(--s-4);
}
.groups-empty p { margin-top: 0.75rem; }

.groups-list {
  list-style: none;
  padding: 0;
  margin: var(--s-4) 0 0;
}

.group-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--s-4);
  margin-bottom: 0.5rem;
}

.group-card-header {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  flex-wrap: wrap;
}
.group-card-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  min-width: 200px;
  flex-wrap: wrap;
}
.group-card-info h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
  cursor: text;
}
.group-card-info h3:hover { color: var(--accent); }
.group-card-info input {
  font-size: 1.05rem;
  font-weight: 600;
  border: 1px solid var(--accent);
  border-radius: var(--r-sm);
  padding: 0.25rem 0.5rem;
  font-family: inherit;
  outline: none;
}
.group-card-actions {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  align-items: center;
}
.danger-btn { color: var(--danger) !important; }
.danger-btn:hover { background: var(--danger-bg) !important; border-color: var(--danger) !important; }

.group-questions {
  list-style: none;
  padding: var(--s-3) 0 0 0;
  margin: var(--s-3) 0 0 0;
  border-top: 1px solid var(--border);
}
.group-question {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0;
  font-size: 0.875rem;
}
.group-question-text { flex: 1; color: var(--text); }
.conf-dot.small { width: 20px; height: 20px; font-size: 0.65rem; }

/* ============ Login screen ============ */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg) 0%, var(--bg-subtle) 100%);
  padding: var(--s-4);
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: var(--s-8) var(--s-6);
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
}

.login-brand {
  text-align: center;
  margin-bottom: var(--s-6);
}
.login-brand .brand-mark {
  width: 56px;
  height: 56px;
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, var(--brand), var(--accent));
  color: white;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--s-3);
}
.login-brand h1 {
  margin: 0 0 0.4rem;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}
.login-brand p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.login-card form {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}

.login-card label {
  display: flex;
  flex-direction: column;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  gap: 0.35rem;
}

.login-card input {
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--surface);
  color: var(--text);
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
}
.login-card input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.login-error {
  background: var(--danger-bg);
  color: var(--danger);
  padding: 0.6rem 0.85rem;
  border-radius: var(--r-md);
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.login-hint {
  margin-top: var(--s-4);
  text-align: center;
  color: var(--text-subtle);
  font-size: 0.78rem;
}

/* ============ Header mode badge ============ */
.header-mode {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.sync-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.65rem;
  border-radius: var(--r-full);
  font-size: 0.72rem;
  font-weight: 600;
  border: 1px solid;
  background: var(--surface);
}
.sync-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.sync-idle { color: var(--success); border-color: #6ee7b7; background: #d1fae5; }
.sync-idle .sync-dot { background: var(--success); }
.sync-syncing { color: var(--accent); border-color: #93c5fd; background: var(--accent-soft); }
.sync-syncing .sync-dot { background: var(--accent); animation: pulse 1s infinite; }
.sync-error { color: var(--danger); border-color: #fca5a5; background: var(--danger-bg); }
.sync-error .sync-dot { background: var(--danger); }
.sync-offline { color: var(--text-muted); border-color: var(--border); background: var(--surface-2); }
.sync-offline .sync-dot { background: var(--text-subtle); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.user-email {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============ Question + Notes split layout ============ */
.qwn-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: var(--s-5);
  align-items: start;
}

.qwn-main {
  min-width: 0; /* żeby flex/grid item nie wychodził na szerokość treści */
}

.qwn-side {
  position: sticky;
  top: 92px;          /* tuż pod sticky headerem */
  align-self: start;
}

/* Notatki - zawsze widoczne w trybie edycji, pełna wysokość obok pytania */
.notes-editor {
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--r-lg);
  padding: var(--s-4);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

.notes-editor.sticky {
  /* sticky positioning jest na .qwn-side; tu tylko styling */
}

.notes-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.notes-title {
  font-size: 0.78rem;
  color: #92400e;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.notes-status {
  font-size: 0.7rem;
  color: var(--text-subtle);
  font-style: italic;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}
.status-typing { color: var(--text-muted); }
.status-saved { color: var(--success); font-style: normal; font-weight: 500; }
.status-idle { color: var(--text-subtle); }

.notes-textarea {
  width: 100%;
  flex: 1;
  background: #fef3c7;
  border: 1px solid #fcd34d;
  border-radius: var(--r-md);
  padding: 0.75rem 0.85rem;
  font-family: var(--font);
  font-size: 0.92rem;
  line-height: 1.6;
  color: #451a03;
  resize: vertical;
  min-height: 320px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.notes-textarea:focus {
  outline: none;
  border-color: #f59e0b;
  background: #fffbeb;
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.18);
}
.notes-textarea::placeholder {
  color: #b45309;
  opacity: 0.45;
  font-style: italic;
}

.tag-note {
  background: #fef3c7 !important;
  color: #92400e !important;
  border-color: #fcd34d !important;
}

/* Stats actions */
.stats-actions {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin: var(--s-3) 0;
}

/* Mobile - stack vertical (notatki pod pytaniem) */
@media (max-width: 1024px) {
  .qwn-grid {
    grid-template-columns: 1fr;
    gap: var(--s-4);
  }
  .qwn-side {
    position: static;
  }
  .notes-textarea {
    min-height: 140px;
  }
}

/* ============ Mobile ============ */
@media (max-width: 768px) {
  .header { padding: var(--s-3); gap: var(--s-2); }
  .header-brand { width: 100%; justify-content: space-between; }
  .header h1 { font-size: 0.92rem; }
  .header h1 small { display: none; }
  .header nav { width: 100%; }
  .header nav button { flex: 1; padding: 0.4rem 0.3rem; font-size: 0.72rem; gap: 0.25rem; }
  .header nav button .icon { width: 14px; height: 14px; }
  .header-stats { font-size: 0.7rem; flex-wrap: wrap; }
  main { padding: var(--s-4) var(--s-3); }
  .filters-row { flex-direction: column; align-items: stretch; }
  .search-wrap { width: 100%; }
  .filters input, .filters select { width: 100%; }
  .filters-advanced { flex-direction: column; align-items: stretch; }
  .filters-advanced label { display: flex; justify-content: space-between; }
  .nav-buttons button { font-size: 0.78rem; padding: 0.55rem 0.4rem; }
  .conf-buttons { gap: 0.3rem; }
  .conf-btn { font-size: 0.72rem; padding: 0.4rem 0.55rem; }
  .conf-text { display: none; }
  .test-option { padding: 0.7rem 0.85rem; font-size: 0.85rem; gap: 0.6rem; }
  .opt-letter { width: 26px; height: 26px; font-size: 0.78rem; }
  .home h2 { font-size: 1.3rem; }
  .detail { padding: var(--s-4); }
  .detail h2 { font-size: 1.15rem; }
}