/* DGT Test in English — Design System
   Fonts: Newsreader (display) + Geist (sans) + Geist Mono
   Brand: cobalt blue #0351b8 (logo road) + teal #0f766e (logo check)
*/
@import url("https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;0,6..72,700;1,6..72,400;1,6..72,500&family=Geist:wght@400;500;600;700&family=Geist+Mono:wght@400;500&display=swap");

:root {
  /* Brand palette — cobalt blue (logo road) */
  --brand-50:  #eff5ff;
  --brand-100: #dbe7fe;
  --brand-200: #bfd4fe;
  --brand-700: #0351b8;
  --brand-800: #0a3d8f;
  --brand-900: #0d3576;

  /* Accent — teal-green (logo checkmark) */
  --accent-500: #16b59f;
  --accent-700: #0f766e;

  /* Semantic feedback */
  --correct:    #047857;
  --correct-bg: #ecfdf5;
  --correct-fg: #064e3b;
  --wrong:      #be123c;
  --wrong-bg:   #fff1f2;
  --wrong-fg:   #881337;
  --warn:       #b45309;
  --warn-bg:    #fffbeb;
  --warn-fg:    #78350f;

  /* Warm stone neutrals */
  --paper:       #fafaf9;
  --paper-2:     #f5f5f4;
  --ink:         #0c0a09;
  --line:        #e7e5e4;
  --line-2:      #d6d3d1;
  --neutral-100: #f5f5f4;
  --neutral-200: #e7e5e4;
  --neutral-300: #d6d3d1;
  --neutral-400: #a8a29e;
  --neutral-500: #78716c;
  --neutral-600: #57534e;
  --neutral-700: #44403c;
  --neutral-800: #292524;
  --neutral-900: #1c1917;

  /* Aliases used by existing template classes */
  --bg:            var(--paper);
  --bg-alt:        var(--paper-2);
  --text:          var(--ink);
  --text-light:    var(--neutral-700);
  --primary:       var(--brand-700);
  --primary-hover: var(--brand-900);
  --primary-light: var(--brand-50);
  --secondary:     var(--brand-800);
  --accent:        var(--warn);
  --accent-light:  var(--warn-bg);
  --success:       var(--correct);
  --success-bg:    var(--correct-bg);
  --danger:        var(--wrong);
  --danger-bg:     var(--wrong-bg);
  --card-bg:       #ffffff;
  --border:        var(--line);
  --border-strong: var(--line-2);

  /* Typography */
  --font-display: 'Newsreader', 'Source Serif Pro', Georgia, serif;
  --font-sans:    'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono:    'Geist Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Radii */
  --radius:      10px;
  --radius-sm:   6px;
  --radius-lg:   14px;
  --radius-pill: 999px;

  /* Shadows — quiet, no glow */
  --shadow-sm:   0 1px 2px rgb(0 0 0 / 0.04), 0 1px 1px rgb(0 0 0 / 0.03);
  --shadow:      0 2px 6px rgb(0 0 0 / 0.06), 0 1px 2px rgb(0 0 0 / 0.04);
  --shadow-lift: 0 4px 12px rgb(0 0 0 / 0.08), 0 2px 4px rgb(0 0 0 / 0.04);
  --shadow-soft: 0 1px 2px rgb(0 0 0 / 0.04), 0 1px 1px rgb(0 0 0 / 0.03);

  --mobile-nav-h: 4.25rem;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
img { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; }
a { color: inherit; }

body {
  font-family: var(--font-sans);
  background-color: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.65;
  min-height: 100svh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  text-wrap: balance;
}
h1 { font-size: clamp(1.9rem, 5vw, 3.2rem); line-height: 1.08; }
h2 { font-size: clamp(1.35rem, 3vw, 1.9rem); line-height: 1.15; }
h3 { font-size: 1.1rem; line-height: 1.25; }

p, a, button, li, input, textarea, select { -webkit-tap-highlight-color: transparent; }

/* ── TOP NAV ── */
nav {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  padding: 0 1.25rem;
  height: 3.25rem;
  display: flex;
  gap: 0.15rem;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 50;
  overflow-x: auto;
  scrollbar-width: none;
}
nav::-webkit-scrollbar { display: none; }
nav a {
  color: var(--neutral-700);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  white-space: nowrap;
  padding: 0.375rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
}
nav a:hover { color: var(--primary); background: var(--primary-light); }
nav a.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.02em;
  margin-right: auto;
  padding-left: 0;
  flex-shrink: 0;
}
nav a.logo:hover { background: transparent; color: var(--primary); text-decoration: none; }
nav a.logo img { height: 28px; width: 28px; object-fit: contain; flex-shrink: 0; display: inline-block; }
nav a.logo .logo-dgt { color: var(--primary); }
.nav-logout { margin: 0; }
.nav-logout button {
  color: var(--neutral-700);
  background: transparent;
  border: 0;
  font-weight: 500;
  font-size: 0.875rem;
  white-space: nowrap;
  padding: 0.375rem 0.6rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
}
.nav-logout button:hover { color: var(--primary); background: var(--primary-light); }

/* ── MOBILE BOTTOM NAV ── */
.app-nav-mobile { display: none; }

main { max-width: 1080px; margin: 1rem auto 4rem; padding: 0 1rem; position: relative; }

.site-footer {
  max-width: 1080px;
  margin: -2rem auto 2rem;
  padding: 0 1rem;
  color: var(--neutral-500);
  font-size: 0.8rem;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.625rem 1rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  white-space: nowrap;
  line-height: 1;
}
.btn:active { opacity: 0.9; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); color: #fff; text-decoration: none; }
.btn-primary:disabled { background: var(--neutral-200); color: var(--neutral-500); cursor: not-allowed; }
.btn-secondary { background: #fff; color: var(--primary); border-color: var(--primary); }
.btn-secondary:hover:not(:disabled) { background: var(--primary-light); color: var(--primary-hover); border-color: var(--primary-hover); text-decoration: none; }
.btn-warning { background: var(--warn); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--wrong-fg); }
.btn-ghost { background: transparent; color: var(--neutral-700); border-color: var(--line-2); }
.btn-ghost:hover { background: var(--paper-2); color: var(--ink); border-color: var(--line-2); }

/* ── INPUTS ── */
input, textarea, select {
  width: 100%;
  border: 1px solid var(--line-2);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.9rem;
  background: #fefefe;
  color: var(--ink);
  font-family: var(--font-sans);
  transition: border-color 0.15s, box-shadow 0.15s;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgb(3 81 184 / 0.1);
}

/* ── CARDS ── */
.question-card, .feedback-card, .result-card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: clamp(1.25rem, 4vw, 2rem);
  animation: fadeUp 0.22s ease both;
}

/* ── EYEBROW ── */
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--neutral-500);
  margin-bottom: 0.6rem;
  font-family: var(--font-sans);
}

/* ── ANSWER OPTIONS ── */
.options { display: flex; flex-direction: column; gap: 0.6rem; margin-top: 1.5rem; }
.option-btn {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.875rem 1.1rem;
  background: #fff;
  border: 1px solid var(--line-2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: left;
  font-size: 0.9375rem;
  font-weight: 500;
  width: 100%;
  color: var(--ink);
  line-height: 1.5;
  min-height: 3.25rem;
  transition: border-color 0.15s, background 0.15s;
}
.option-btn:hover { border-color: var(--primary); background: var(--primary-light); }
.option-btn:active { opacity: 0.9; }
.option-letter {
  flex-shrink: 0;
  width: 1.75rem;
  height: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--neutral-100);
  color: var(--neutral-700);
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  transition: background 0.15s, color 0.15s;
}
.option-text { flex: 1; }

/* ── FEEDBACK ── */
.feedback {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.875rem 1.1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.1rem;
  border: 1px solid transparent;
}
.feedback.correct { background: var(--correct-bg); color: var(--correct-fg); border-color: rgb(4 120 87 / 0.2); }
.feedback.incorrect { background: var(--wrong-bg); color: var(--wrong-fg); border-color: rgb(190 18 60 / 0.15); }
.feedback-icon { font-size: 1.4rem; line-height: 1; }
.feedback-text { font-weight: 600; font-size: 1rem; }

.explanation {
  background: var(--primary-light);
  border-left: 3px solid var(--primary);
  padding: 0.875rem 1.1rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1rem 0;
  font-size: 0.95rem;
  line-height: 1.65;
}
.correct-answer {
  background: var(--correct-bg);
  color: var(--correct-fg);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  margin: 0.75rem 0;
  font-size: 0.95rem;
}

/* ── MISC ── */
.dashboard { text-align: left; }
.subtitle { color: var(--text-light); }
.actions { display: flex; gap: 0.75rem; flex-wrap: wrap; margin: 1.25rem 0; }
.panel-kicker {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.69rem;
  font-weight: 500;
  color: var(--neutral-500);
  margin-bottom: 0.75rem;
}

/* ── DASHBOARD ── */
.next-up-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  background: var(--primary);
  color: #f8fffd;
  border-radius: var(--radius);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  margin-bottom: 0.75rem;
  animation: fadeUp 0.25s ease both;
}
.next-up-copy { display: grid; gap: 0.4rem; }
.next-up-copy .eyebrow { color: rgba(248,255,253,0.65); }
.next-up-copy h1 { font-size: clamp(1.4rem, 3vw, 2rem); color: #fff; }
.next-up-copy .subtitle { color: rgba(248,255,253,0.75); font-size: 0.93rem; max-width: 46ch; }
.next-up-action { display: grid; gap: 0.5rem; flex-shrink: 0; }
.btn-next { background: #fff; color: var(--primary); font-size: 1.0625rem; padding: 0.85rem 1.5rem; white-space: nowrap; }
.btn-next:hover { background: var(--brand-50); color: var(--primary-hover); text-decoration: none; }
.srs-note { font-size: 0.76rem; color: rgba(248,255,253,0.6); text-align: center; }

.dash-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.stat {
  text-align: center;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow-sm);
}
.stat-value { display: block; font-size: 1.6rem; font-weight: 600; color: var(--primary); font-family: var(--font-display); }
.stat-label { color: var(--text-light); font-size: 0.78rem; }

.mode-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.75rem;
  margin: 0 0 1rem;
}
.mode-tile {
  display: grid;
  gap: 0.4rem;
  color: inherit;
  text-decoration: none;
  padding: 1rem;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.18s ease, border-color 0.18s ease;
}
.mode-tile:hover { box-shadow: var(--shadow-lift); text-decoration: none; border-color: var(--line-2); }
.mode-tile span { color: var(--neutral-500); font-weight: 500; font-size: 0.72rem; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.06em; }
.mode-tile h2 { font-size: 1rem; }
.mode-tile p { color: var(--text-light); font-size: 0.82rem; }
.mode-tile--alert { border-color: rgb(190 18 60 / 0.3); background: var(--wrong-bg); }
.mode-tile--alert span { color: var(--wrong-fg); }
.mode-tile--alert h2, .mode-tile--alert p { color: var(--wrong-fg); }

.priority-actions, .practice-mode-actions, .principle-card-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 1rem;
}

.onboarding-banner {
  background: var(--warn-bg);
  border: 1px solid rgb(180 83 9 / 0.18);
  border-left: 3px solid var(--warn);
  border-radius: var(--radius);
  padding: clamp(1.1rem, 3vw, 1.75rem);
  margin-bottom: 1rem;
  display: grid;
  gap: 0.65rem;
  max-width: 700px;
  animation: fadeUp 0.25s ease both;
}

/* ── PRACTICE / QUESTION ── */
.practice-mode {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.9rem 1rem;
  margin-bottom: 0.85rem;
}
.practice-mode h1 { font-size: clamp(1.25rem, 3vw, 1.8rem); line-height: 1.15; margin-bottom: 0.2rem; }
.practice-mode p { color: var(--text-light); font-size: 0.88rem; }
.practice-mode-actions { flex-shrink: 0; }

.principle-cue-strip, .feedback-principles, .repair-grid, .principle-mini-map { display: grid; gap: 0.65rem; }
.principle-cue-strip { margin-bottom: 1rem; }
.principle-cue {
  display: grid;
  gap: 0.15rem;
  color: inherit;
  text-decoration: none;
  padding: 0.7rem 0.9rem;
  border: 1px solid rgb(3 81 184 / 0.12);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  transition: background 0.15s;
}
.principle-cue:hover { background: var(--brand-100); }
.principle-cue span, .feedback-principle span, .repair-card-head span {
  color: var(--text-light);
  font-size: 0.76rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.principle-cue em { color: var(--text-light); font-style: normal; font-size: 0.88rem; }

.question-image { text-align: center; margin-bottom: 1.25rem; }
.question-image img { max-width: 100%; border-radius: var(--radius-sm); border: 1px solid var(--line); }
.question-number { color: var(--text-light); font-size: 0.86rem; margin-bottom: 0.65rem; }
.question-text { font-size: 1.1rem; font-weight: 500; margin-bottom: 0.25rem; line-height: 1.5; }

.options .option-btn:nth-child(1) { animation: fadeUp 0.2s 0.04s ease both; }
.options .option-btn:nth-child(2) { animation: fadeUp 0.2s 0.08s ease both; }
.options .option-btn:nth-child(3) { animation: fadeUp 0.2s 0.12s ease both; }

/* ── FEEDBACK PRINCIPLE ── */
.feedback-principles { margin-top: 1.25rem; }
.feedback-principle {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(200px, 0.8fr);
  gap: 0.85rem;
  padding: 1rem;
}
.feedback-principle h2 { font-size: 1.05rem; }
.trap-note {
  padding: 0.8rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgb(180 83 9 / 0.18);
  background: var(--warn-bg);
  font-size: 0.88rem;
  color: var(--warn-fg);
}
.trap-note strong { display: block; color: var(--warn); margin-bottom: 0.2rem; font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.06em; }

.principle-actions, .next-action {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  justify-content: flex-end;
  grid-column: 1 / -1;
}
.next-action { margin-top: 1.25rem; }

/* ── PROGRESS ── */
.progress { margin-bottom: 1.25rem; }
.progress-shell {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  box-shadow: var(--shadow-sm);
}
.progress-bar { height: 4px; background: var(--neutral-200); border-radius: var(--radius-pill); overflow: hidden; }
.progress-fill { height: 100%; background: var(--primary); transition: width 0.4s ease; border-radius: var(--radius-pill); }
.progress-text { color: var(--text-light); font-size: 0.84rem; margin-top: 0.4rem; }

/* ── RESULT ── */
.score { font-size: 3.5rem; font-weight: 600; text-align: center; font-family: var(--font-display); }
.score.pass { color: var(--success); }
.score.fail { color: var(--danger); }
.result-kicker { text-align: center; color: var(--text-light); text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.73rem; font-weight: 500; }
.result-verdict { text-align: center; font-size: clamp(2.4rem, 6vw, 4rem); line-height: 1; margin: 0.3rem 0 0.5rem; font-family: var(--font-display); }
.result-verdict.pass { color: var(--success); }
.result-verdict.fail { color: var(--danger); }
.result-status { text-align: center; font-size: 1.05rem; margin: 0.85rem 0 0.4rem; }
.result-summary { text-align: center; color: var(--text-light); }
.result-actions { display: flex; justify-content: center; gap: 0.65rem; flex-wrap: wrap; margin-top: 1.5rem; }

.practice-plan-note { color: var(--text-light); font-size: 0.88rem; margin-top: 0.5rem; }
.repair-plan-actions { display: flex; gap: 0.65rem; flex-wrap: wrap; margin-top: 0.85rem; }

.section-title { margin-top: 2rem; }
.repair-grid { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); margin-top: 0.85rem; }
.repair-card { display: grid; gap: 0.75rem; padding: 1rem; align-content: start; }
.repair-card-head { display: flex; justify-content: space-between; gap: 0.5rem; align-items: center; }
.repair-card-head strong { color: var(--danger); white-space: nowrap; font-size: 0.88rem; }
.repair-card h3 { font-size: 1.05rem; }
.repair-card > p { color: var(--text-light); font-size: 0.88rem; }

.mistake-item { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.mistake-item:last-child { border-bottom: none; }
.inline-principles { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0.4rem 0; }
.inline-principles a {
  color: var(--primary);
  text-decoration: none;
  border: 1px solid rgb(3 81 184 / 0.18);
  background: var(--primary-light);
  border-radius: var(--radius-pill);
  padding: 0.18rem 0.55rem;
  font-size: 0.78rem;
  font-weight: 500;
}
.badge { display: inline-flex; align-items: center; padding: 0.2rem 0.55rem; border-radius: var(--radius-sm); font-size: 0.76rem; font-weight: 500; }
.badge-published { background: var(--correct-bg); color: var(--correct-fg); }
.badge-draft { background: var(--warn-bg); color: var(--warn-fg); }
.badge-danger { background: var(--wrong-bg); color: var(--wrong-fg); }
.badge-success { background: var(--correct-bg); color: var(--correct-fg); }
.inline-badges { display: flex; gap: 0.4rem; flex-wrap: wrap; align-items: center; }

/* ── STATS PAGE ── */
.stats-reset-card { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.reset-list { display: grid; gap: 0.55rem; margin: 0.85rem 0 1.1rem; }
.reset-list p { padding: 0.75rem 0.9rem; border-radius: var(--radius-sm); border: 1px solid var(--line); background: var(--paper-2); }

/* ── LEARN / PRINCIPLES ── */
.learn-home, .learn-topic, .learn-lesson,
.exam, .practice, .result, .review, .admin, .stats { display: grid; gap: 1.5rem; }

.home-hero, .learn-hero, .topic-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
  gap: 1rem;
  align-items: stretch;
  margin-bottom: 1.25rem;
}
.home-hero-copy, .learn-hero > div:first-child, .topic-hero > div:first-child { text-align: left; }

.home-hero-panel, .learn-hero-card, .topic-hero-card {
  background: var(--primary);
  color: #f8fffd;
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.learn-hero-card, .topic-hero-card { display: grid; align-content: start; gap: 0.2rem; }
.learn-hero-card .learn-note, .topic-hero-card .learn-note { color: rgba(255, 255, 255, 0.8); }

.learn-hero h1, .topic-hero h1 { font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.05; margin-bottom: 0.75rem; }
.learn-intro, .learn-note, .home-hero .subtitle, .topic-hero p { color: var(--text-light); max-width: 56ch; }
.panel-stat { padding: 0.85rem 0; border-top: 1px solid rgba(255, 255, 255, 0.15); }
.panel-stat:first-of-type { border-top: none; padding-top: 0; }
.panel-value { display: block; font-size: 1.9rem; font-weight: 600; line-height: 1; font-family: var(--font-display); }
.panel-label { display: block; margin-top: 0.2rem; font-size: 0.86rem; opacity: 0.82; }

.resume-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.4rem;
  box-shadow: var(--shadow-sm);
}

.section-heading { display: grid; gap: 0.2rem; }
.section-heading h2 { font-size: 1.45rem; }

.topic-grid, .lesson-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 0.85rem;
}
.topic-card, .lesson-card {
  display: grid;
  gap: 0.85rem;
  text-decoration: none;
  color: inherit;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.18s ease, border-color 0.18s ease;
}
.topic-card:hover, .lesson-card:hover { box-shadow: var(--shadow-lift); text-decoration: none; border-color: var(--line-2); }
.topic-card-head, .lesson-card-top { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; }
.topic-index {
  width: 1.75rem; height: 1.75rem;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-pill);
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600; font-size: 0.8rem;
  font-family: var(--font-mono);
}
.topic-points, .lesson-xp, .lesson-badge, .step-pill {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-pill);
  padding: 0.25rem 0.6rem;
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--primary-light);
  color: var(--primary);
}
.topic-card p, .lesson-card p { color: var(--text-light); font-size: 0.88rem; }
.topic-meta, .lesson-meta { display: flex; justify-content: space-between; gap: 0.75rem; color: var(--text-light); font-size: 0.83rem; }

.principle-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0.75rem 0 1rem;
}
.principle-card { align-content: start; }
.principle-card-actions { margin-top: auto; }
.principle-mini-map { grid-template-columns: 1fr; }
.principle-mini-map div { display: grid; gap: 0.15rem; padding: 0.7rem; border-radius: var(--radius-sm); background: var(--paper-2); border: 1px solid var(--line); }
.principle-mini-map strong { color: var(--primary); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.06em; }
.principle-mini-map span { color: var(--text-light); font-size: 0.86rem; }

.learn-lesson { max-width: 680px; margin-left: auto; margin-right: auto; }

.step-card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 4vw, 2rem);
  box-shadow: var(--shadow-sm);
  animation: fadeUp 0.22s ease both;
}
.step-card h1 {
  font-family: var(--font-sans);
  font-size: clamp(1.35rem, 3vw, 1.7rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.step-kicker { display: flex; justify-content: space-between; align-items: center; gap: 0.75rem; margin-bottom: 0.85rem; }
.step-source { font-size: 0.8rem; color: var(--text-light); }
.step-topic { color: var(--primary); font-weight: 500; margin-bottom: 0.35rem; }
.step-subtitle { font-size: 0.9rem; font-weight: 600; color: var(--text-light); margin: 0 0 0.1rem; }
.step-context { font-size: 0.8rem; color: var(--text-light); margin: 0.1rem 0 0.75rem; letter-spacing: 0.01em; }
.step-prompt { font-size: 1.12rem; margin: 0.25rem 0 0.85rem; line-height: 1.65; }
.step-note {
  background: var(--primary-light);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 0.85rem 1rem;
  margin: 0.85rem 0;
  font-size: 1rem;
  line-height: 1.6;
}
.learn-progress { margin-bottom: 0.85rem; }
.principle-transfer { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem; margin: 0.85rem 0; }
.principle-transfer p:last-child { color: var(--text-light); }

.bullet-list { list-style: none; display: grid; gap: 0.6rem; margin: 0.85rem 0 1rem; }
.bullet-list li { padding: 0.72rem 0.9rem; border-radius: var(--radius-sm); background: var(--paper-2); border: 1px solid var(--line); font-size: 1rem; line-height: 1.55; }

.choice-list { display: grid; gap: 0.6rem; margin-top: 1rem; }
.choice-btn {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  width: 100%;
  padding: 0.875rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--line-2);
  background: #fff;
  color: inherit;
  text-align: left;
  cursor: pointer;
  min-height: 4.25rem;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.choice-btn:hover { border-color: var(--primary); background: var(--primary-light); }
.choice-btn:active { opacity: 0.9; }
.choice-label {
  flex-shrink: 0;
  width: 1.75rem; height: 1.75rem;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-pill);
  background: var(--neutral-100);
  color: var(--neutral-700);
  font-weight: 600; font-size: 0.8rem;
  font-family: var(--font-mono);
}
.choice-text { flex: 1; font-weight: 500; font-size: 1rem; line-height: 1.5; }

.feedback-banner { margin: 1rem 0; border-radius: var(--radius-sm); padding: 0.85rem 1rem; border: 1px solid transparent; }
.feedback-banner.correct { background: var(--correct-bg); color: var(--correct-fg); border-color: rgb(4 120 87 / 0.18); }
.feedback-banner.incorrect { background: var(--wrong-bg); color: var(--wrong-fg); border-color: rgb(190 18 60 / 0.15); }
.feedback-banner p { margin-top: 0.2rem; font-size: 0.88rem; }
.correct-answer-line { font-weight: 600; }

.continue-form { margin-top: 1rem; display: flex; justify-content: flex-end; }
.align-left { justify-content: flex-start; }
.completion-card { text-align: left; }
.completion-actions { display: flex; flex-direction: column; gap: 0.75rem; margin-top: 1.25rem; }
.completion-links { display: flex; gap: 1.25rem; font-size: 0.88rem; }
.completion-links a { color: var(--text-light); text-decoration: underline; text-underline-offset: 3px; }

/* ── FORMS / ADMIN ── */
.form-group { margin-bottom: 0.85rem; }
.form-group label { display: block; font-weight: 500; margin-bottom: 0.28rem; font-size: 0.9rem; }
.form-group textarea { min-height: 80px; }
.filter-bar { display: flex; gap: 0.75rem; align-items: center; margin-bottom: 1.25rem; }
.filter-bar h1 { margin-right: auto; }
table { width: 100%; border-collapse: collapse; margin-top: 0.85rem; }
th, td { padding: 0.68rem 0.75rem; text-align: left; border-bottom: 1px solid var(--line); font-size: 0.9rem; }
th { background: var(--paper-2); font-weight: 500; color: var(--neutral-700); }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card-bg); box-shadow: var(--shadow-sm); }
.table-wrap table { min-width: 720px; margin-top: 0; }
.mistake-list { display: grid; gap: 0.85rem; }
.mistake-card { margin-bottom: 0; }
.image-preview { border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--line); max-width: 280px; }
.image-preview img { display: block; width: 100%; height: auto; }
.form-actions { display: flex; gap: 0.65rem; flex-wrap: wrap; margin-top: 0.85rem; }

/* ── LOGIN PAGE ── */
.login-page nav, .login-page .site-footer, .login-page .app-nav-mobile { display: none; }
.login-main { min-height: 100svh; display: grid; place-items: center; max-width: 1120px; margin: 0 auto; padding: 1rem; }
.login-shell { width: min(100%, 980px); display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.8fr); gap: 0.85rem; align-items: stretch; }
.login-copy, .login-form { border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.login-copy {
  display: grid;
  align-content: center;
  gap: 1rem;
  padding: clamp(1.5rem, 4vw, 3rem);
  background: var(--primary);
  color: #f8fffd;
}
.login-copy .eyebrow, .login-copy p { color: rgba(248, 255, 253, 0.78); }
.login-copy h1 { font-size: clamp(2.2rem, 6vw, 4rem); line-height: 1; }
.price-mark { display: flex; align-items: baseline; gap: 0.65rem; flex-wrap: wrap; border-top: 1px solid rgba(255, 255, 255, 0.15); padding-top: 0.85rem; }
.price-mark strong { font-size: 1.6rem; }
.price-mark span { color: rgba(248, 255, 253, 0.7); font-size: 0.88rem; }
.login-form { display: grid; gap: 0.85rem; align-content: center; padding: clamp(1.25rem, 3vw, 2rem); background: var(--card-bg); }
.login-form h2 { font-size: 1.75rem; }
.login-form label { display: grid; gap: 0.28rem; }
.login-form label span { font-weight: 500; font-size: 0.88rem; }
.login-error { padding: 0.72rem 0.9rem; border-radius: var(--radius-sm); background: var(--wrong-bg); color: var(--wrong-fg); font-weight: 500; }
.login-success { padding: 0.72rem 0.9rem; border-radius: var(--radius-sm); background: var(--correct-bg); color: var(--correct-fg); font-weight: 500; }
.login-note { color: var(--text-light); font-size: 0.86rem; }

/* ── MARKETING PAGE ── */
.marketing-page nav, .marketing-page .app-nav-mobile { display: none; }
.marketing-main { max-width: 1200px; margin: 0 auto; padding: 1rem; }
.marketing-nav {
  position: static;
  border: 0;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  height: auto;
  padding: 0.75rem 0 1.5rem;
  overflow: visible;
}
.marketing-nav > div, .marketing-actions { display: flex; gap: 0.65rem; flex-wrap: wrap; }
.nav-disclaimer { font-size: 0.76rem; color: var(--text-light); flex: 1; text-align: center; align-self: center; }

/* ── SITE HERO ── */
.site-hero {
  padding: clamp(3rem, 8vw, 6rem) clamp(1rem, 4vw, 3rem);
  text-align: center;
  display: grid;
  gap: 1.25rem;
  justify-items: center;
  animation: fadeUp 0.3s ease both;
}
.site-hero h1 {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  line-height: 1.0;
  max-width: 16ch;
}
.hero-lede {
  max-width: 54ch;
  color: var(--text-light);
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: 1.7;
}
.hero-ctas {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 0.5rem;
}
.btn-lg {
  padding: 0.85rem 1.5rem;
  font-size: 1.0625rem;
}

/* ── TRUST STRIP ── */
.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0 0 1rem;
}
.trust-stat { display: flex; flex-direction: column; gap: 0.18rem; padding: 0.9rem 1rem; background: var(--card-bg); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.trust-stat strong { font-size: 1.35rem; color: var(--primary); font-family: var(--font-display); }
.trust-stat span { font-size: 0.78rem; color: var(--text-light); }

/* ── HOW IT WORKS ── */
.how-section {
  background: var(--primary);
  color: #f8fffd;
  border-radius: var(--radius);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  margin: 0 0 0.75rem;
}
.how-section .panel-kicker { color: rgba(248, 255, 253, 0.65); margin-bottom: 1.1rem; }
.how-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.how-step {
  display: grid;
  gap: 0.3rem;
  padding: 1.1rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}
.how-n {
  display: block;
  color: #fbbf24;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  font-family: var(--font-mono);
  margin-bottom: 0.3rem;
}
.how-step strong { font-size: 1rem; }
.how-step p { color: rgba(248, 255, 253, 0.74); font-size: 0.88rem; line-height: 1.6; }

/* ── WHY SECTION ── */
.why-section {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0.75rem 0;
}
.why-section article {
  display: grid;
  gap: 0.5rem;
  padding: 1.25rem;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  align-content: start;
}
.why-section h2 { font-size: 1.05rem; }
.why-section p { color: var(--text-light); font-size: 0.9rem; line-height: 1.65; }

/* ── RULE PREVIEW (landing page) ── */
.rule-preview-section {
  margin: 0.75rem 0;
}
.rule-preview-intro {
  color: var(--text-light);
  font-size: 0.93rem;
  margin: 0.4rem 0 1rem;
}
.rule-preview-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.rule-preview-header {
  padding: 1.35rem 1.5rem 1.1rem;
  background: var(--card-bg);
  border-bottom: 1px solid var(--line);
}
.rule-preview-group {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 600;
  color: var(--primary);
}
.rule-preview-header h3 {
  font-size: 1.15rem;
  margin: 0.3rem 0 0.5rem;
}
.rule-preview-header p {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.55;
  margin: 0;
  max-width: 56ch;
}
.rule-preview-blocks {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.rule-preview-block {
  display: grid;
  gap: 0.4rem;
  padding: 1.1rem 1.25rem;
  align-content: start;
  border-right: 1px solid var(--line);
}
.rule-preview-block:last-child { border-right: none; }
.rule-preview-block strong {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  font-weight: 600;
}
.rule-preview-block span {
  color: var(--text-light);
  font-size: 0.88rem;
  line-height: 1.55;
}
.rule-preview-trap { background: #fffbeb; }
.rule-preview-trap strong { color: #92400e; }
.rule-preview-cta {
  font-size: 0.88rem;
  color: var(--text-light);
  margin: 0.75rem 0 0;
}
.rule-preview-cta a { color: var(--primary); font-weight: 500; }

/* ── SEO RULE PAGES ── */
.content-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.83rem;
  color: var(--text-light);
  padding: 0.85rem 0 0;
  flex-wrap: wrap;
}
.content-breadcrumb a { color: var(--primary); text-decoration: none; }
.content-breadcrumb a:hover { text-decoration: underline; }
.content-hero {
  padding: 2rem 0 1.25rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 1.25rem;
}
.content-lede { color: var(--text-light); font-size: 1rem; line-height: 1.65; max-width: 60ch; margin-top: 0.5rem; }
.rules-index-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0.75rem 0 1.5rem;
}
.rule-family-card {
  display: grid;
  align-content: start;
  gap: 0.4rem;
  padding: 1.25rem;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.rule-family-card:hover { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }
.rule-family-head { margin-bottom: 0.2rem; }
.rule-family-card h2 { font-size: 1rem; color: var(--text); }
.rule-family-card p { color: var(--text-light); font-size: 0.88rem; line-height: 1.55; }
.rule-more { font-size: 0.83rem; color: var(--primary); font-weight: 500; margin-top: 0.35rem; }
.rule-list { display: grid; gap: 0.5rem; margin-bottom: 1.5rem; }
.rule-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.rule-item:hover { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }
.rule-item-body { flex: 1; display: grid; gap: 0.3rem; }
.rule-item-body h2 { font-size: 0.97rem; color: var(--text); }
.rule-item-body p { color: var(--text-light); font-size: 0.86rem; line-height: 1.55; margin: 0; }
.rule-cue-preview { font-size: 0.83rem !important; }
.rule-cue-preview strong { color: var(--primary); font-weight: 500; }
.rule-arrow { color: var(--text-light); font-size: 1.1rem; flex-shrink: 0; }
.rule-article { max-width: 680px; padding: 2rem 0; }
.rule-article-header { margin-bottom: 2rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--line); }
.rule-summary { font-size: 1.05rem; color: var(--text-light); line-height: 1.65; margin-top: 0.65rem; max-width: 60ch; }
.rule-blocks {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 2rem;
}
.rule-block {
  display: grid;
  gap: 0.5rem;
  padding: 1.25rem;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  align-content: start;
}
.rule-block h2 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--primary); font-weight: 600; margin: 0; }
.rule-block p { color: var(--text-light); font-size: 0.9rem; line-height: 1.6; margin: 0; }
.rule-block-trap { border-color: #fbbf24; background: #fffbeb; }
.rule-block-trap h2 { color: #92400e; }
.rule-block-locked { background: var(--paper-2); border-style: dashed; }
.rule-block-locked h2 { color: var(--text-light); }
.rule-locked-preview { font-style: italic; }
.rule-locked-cta { font-size: 0.85rem; font-weight: 600; color: var(--primary); text-decoration: none; margin-top: 0.25rem; display: inline-block; }
.rule-locked-cta:hover { text-decoration: underline; }
.rules-cta {
  background: var(--primary);
  color: #f8fffd;
  border-radius: var(--radius);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  margin: 0 0 1.5rem;
}
.rules-cta-inner { max-width: 560px; display: grid; gap: 0.75rem; }
.rules-cta h2 { font-size: 1.2rem; color: #f8fffd; }
.rules-cta p { color: rgba(248, 255, 253, 0.78); font-size: 0.92rem; line-height: 1.6; }

/* ── PRICING ── */
.pricing-section { margin: 0.75rem 0 1.5rem; }
.pricing-card {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.8fr);
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.pricing-left {
  padding: clamp(1.5rem, 4vw, 2.5rem);
  background: var(--card-bg);
  display: grid;
  gap: 0.85rem;
  align-content: start;
}
.pricing-left h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
.pricing-sub { color: var(--text-light); font-size: 0.9rem; max-width: 46ch; }
.pricing-features {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.35rem;
  margin-top: 0.25rem;
}
.pricing-features li {
  padding: 0.55rem 0.75rem;
  font-size: 0.88rem;
  color: var(--text-light);
  padding-left: 1.4em;
  position: relative;
  border-radius: var(--radius-sm);
}
.pricing-features li::before { content: "✓"; position: absolute; left: 0.25rem; color: var(--accent-700); font-weight: 700; }
.pricing-right {
  padding: clamp(1.5rem, 4vw, 2.5rem);
  background: var(--primary);
  color: #f8fffd;
  display: grid;
  gap: 1.25rem;
  align-content: center;
}
.pricing-price-block {
  display: grid;
  gap: 0.15rem;
}
.pricing-amount {
  font-size: clamp(3rem, 7vw, 5rem);
  font-family: var(--font-display);
  line-height: 1;
  font-weight: 600;
}
.pricing-term {
  font-size: 0.82rem;
  color: rgba(248, 255, 253, 0.65);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.pricing-actions { display: flex; flex-direction: column; gap: 0.6rem; }
.pricing-actions .btn-primary { background: #fff; color: var(--primary); }
.pricing-actions .btn-primary:hover { background: var(--brand-50); color: var(--primary-hover); }
.pricing-actions .btn-ghost { color: rgba(248, 255, 253, 0.8); border-color: rgba(248, 255, 253, 0.3); }
.pricing-actions .btn-ghost:hover { background: rgba(255, 255, 255, 0.1); color: #fff; border-color: rgba(255, 255, 255, 0.5); }
.pricing-note { font-size: 0.76rem; color: rgba(248, 255, 253, 0.55); line-height: 1.5; }

.guarantee-badge {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  display: grid;
  gap: 0.2rem;
}
.guarantee-badge strong { font-size: 0.88rem; color: #fff; }
.guarantee-badge span { font-size: 0.78rem; color: rgba(248, 255, 253, 0.65); line-height: 1.5; }

/* ── POLICY PAGES ── */
.policy-page {
  max-width: 680px;
  margin: 2rem auto 3rem;
  display: grid;
  gap: 1.25rem;
}
.policy-page h1 { font-size: clamp(1.9rem, 5vw, 3rem); }
.policy-page h2 { font-size: 1.15rem; margin-top: 0.5rem; }
.policy-page p, .policy-page li { color: var(--text-light); font-size: 0.95rem; line-height: 1.75; }
.policy-page ul { padding-left: 1.25rem; display: grid; gap: 0.4rem; }
.policy-page a { color: var(--primary); text-decoration: underline; text-underline-offset: 2px; }
.policy-intro { font-size: 1.05rem; color: var(--ink); border-left: 3px solid var(--primary); padding-left: 1rem; }

/* ── PAIN STATS SECTION ── */
.pain-section {
  background: var(--neutral-900);
  color: #f8fffd;
  border-radius: var(--radius);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  margin: 0 0 0.75rem;
}
.pain-section .panel-kicker { color: rgba(248, 255, 253, 0.45); margin-bottom: 1.25rem; }
.pain-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}
.pain-item {
  display: grid;
  gap: 0.35rem;
  padding: 1.25rem 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  align-content: start;
}
.pain-number {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-family: var(--font-display);
  color: #fbbf24;
  line-height: 1.1;
}
.pain-label {
  font-size: 0.88rem;
  color: rgba(248, 255, 253, 0.7);
  line-height: 1.6;
}
.pain-source {
  font-size: 0.72rem;
  color: rgba(248, 255, 253, 0.35);
  font-family: var(--font-mono);
  margin-top: 0.15rem;
}

/* ── COMPARISON TABLE ── */
.comparison-section {
  margin: 0.75rem 0;
}
.comparison-intro {
  color: var(--text-light);
  font-size: 0.9rem;
  max-width: 58ch;
  margin: 0.5rem 0 1rem;
  line-height: 1.65;
}
.comparison-table {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.ct-header, .ct-row {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
}
.ct-header {
  background: var(--paper-2);
  border-bottom: 2px solid var(--line);
}
.ct-col-label {
  padding: 0.75rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--neutral-500);
  text-align: center;
}
.ct-col-us {
  background: var(--brand-50);
  color: var(--brand-700);
  border-left: 1px solid var(--brand-200);
}
.ct-row {
  border-bottom: 1px solid var(--line);
}
.ct-row:last-child { border-bottom: none; }
.ct-row > div:first-child {
  padding: 0.8rem 1rem;
  font-size: 0.88rem;
  color: var(--text-light);
}
.ct-row > div:not(:first-child) {
  padding: 0.8rem 1rem;
  text-align: center;
  font-size: 0.88rem;
  font-weight: 500;
}
.ct-yes { color: var(--correct); }
.ct-no { color: var(--neutral-400); }
.ct-partial { color: var(--warn); font-size: 0.82rem; }
.ct-us {
  background: var(--brand-50);
  color: var(--brand-700) !important;
  border-left: 1px solid var(--brand-200);
}

/* ── HERO GUARANTEE NOTE ── */
.hero-guarantee {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: -0.25rem;
}

/* ── FAQ SECTION ── */
.faq-section {
  margin: 0.75rem 0;
}
.faq-list {
  display: grid;
  gap: 0.35rem;
  margin-top: 0.75rem;
}
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.faq-item summary {
  padding: 1rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  color: var(--primary);
  font-size: 1.2rem;
  font-weight: 400;
  line-height: 1;
  flex-shrink: 0;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item summary:hover { color: var(--primary); }
.faq-item p {
  padding: 0 1.25rem 1rem;
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.7;
  margin: 0;
}

.marketing-footer { display: flex; justify-content: space-between; align-items: center; gap: 0.75rem; padding: 1.25rem 0; border-top: 1px solid var(--line); margin-top: 1.5rem; font-size: 0.79rem; color: var(--text-light); }
.footer-links { display: flex; gap: 1rem; }
.footer-links a { color: var(--text-light); text-decoration: none; }
.footer-links a:hover { color: var(--primary); }

/* ── SAMPLE PAGE ── */
.sample-main { padding-top: 0.5rem; }
.sample-upsell {
  margin-top: 1.5rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  background: var(--warn-bg);
  border: 1px solid rgb(180 83 9 / 0.18);
  border-left: 3px solid var(--warn);
  border-radius: var(--radius);
  display: grid;
  gap: 0.65rem;
}
.sample-upsell h2 { font-size: clamp(1.35rem, 4vw, 2.1rem); }
.sample-upsell p { color: var(--text-light); font-size: 0.9rem; }
.sample-upsell-actions { display: flex; gap: 0.65rem; flex-wrap: wrap; }

/* ── WELCOME PAGE ── */
.welcome { max-width: 680px; margin: 1.5rem auto; padding: 0 0.75rem; }
.welcome-card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(1.5rem, 5vw, 3rem);
  display: grid;
  gap: 1.1rem;
  animation: fadeUp 0.28s ease both;
}
.welcome-card h1 { font-size: clamp(1.7rem, 5vw, 2.5rem); line-height: 1.1; }
.welcome-lead { font-size: 1.03rem; color: var(--ink); }
.welcome-sub { color: var(--text-light); }
.welcome-steps { display: grid; gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.welcome-step { display: grid; grid-template-columns: 2.75rem 1fr; gap: 0.65rem; padding: 1rem 1.1rem; border-top: 1px solid var(--line); align-items: start; }
.welcome-step:first-child { border-top: none; }
.step-num { font-size: 1.05rem; font-weight: 600; color: var(--primary); padding-top: 0.1rem; font-family: var(--font-mono); }
.step-body { display: grid; gap: 0.18rem; }
.step-body strong { font-size: 0.95rem; }
.step-body p { font-size: 0.85rem; color: var(--text-light); margin: 0; }
.welcome-action { display: grid; gap: 0.4rem; justify-items: start; }
.welcome-hint { font-size: 0.79rem; color: var(--text-light); }

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
  body { font-size: 15.5px; }
  main { margin: 0.5rem auto 1rem; padding: 0 0.75rem; padding-bottom: var(--mobile-nav-h); }
  .site-footer { margin-bottom: calc(var(--mobile-nav-h) + 1rem); }

  /* Mobile bottom nav */
  .app-nav-mobile {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(250, 250, 249, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--line);
    padding: 0.35rem 0.5rem calc(0.35rem + env(safe-area-inset-bottom, 0px));
    z-index: 100;
    gap: 0;
  }
  .app-nav-mobile a {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.18rem;
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    padding: 0.4rem 0.2rem;
    border-radius: 10px;
    transition: color 0.15s, background 0.15s;
    text-transform: uppercase;
  }
  .app-nav-mobile a:hover,
  .app-nav-mobile a:active { color: var(--primary); background: var(--primary-light); }
  .app-nav-mobile svg { width: 1.35rem; height: 1.35rem; flex-shrink: 0; }

  /* Top nav: logo only on mobile */
  nav a:not(.logo), .nav-logout { display: none; }
  nav { overflow: visible; }

  /* Grids → single column */
  .mode-strip, .login-shell,
  .home-hero, .learn-hero, .topic-hero,
  .feedback-principle { grid-template-columns: 1fr; }

  .next-up-card { flex-direction: column; align-items: flex-start; }
  .btn-next { width: 100%; justify-content: center; }
  .dash-stats { grid-template-columns: repeat(2, 1fr); }

  .practice-mode, .principle-transfer { flex-direction: column; align-items: flex-start; }

  /* Full-width btn stacks */
  .priority-actions, .principle-card-actions, .principle-actions,
  .next-action, .result-actions, .completion-actions,
  .payment-actions, .sample-upsell-actions, .welcome-action {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }
  .priority-actions .btn, .principle-card-actions .btn, .principle-actions .btn,
  .next-action .btn, .result-actions .btn, .completion-actions .btn,
  .payment-actions .btn, .sample-upsell-actions .btn, .welcome-action .btn {
    width: 100%;
    justify-content: center;
  }

  /* Marketing */
  .marketing-nav { flex-direction: column; align-items: stretch; }
  .marketing-nav > div { flex-direction: column; }
  .marketing-nav .btn, .marketing-actions .btn { width: 100%; justify-content: center; }
  .nav-disclaimer { text-align: left; }
  .marketing-main { padding: 0.75rem; }
  .site-hero { padding: 2rem 0.5rem; text-align: left; justify-items: start; }
  .site-hero h1 { font-size: clamp(2.6rem, 14vw, 4.5rem); }
  .hero-ctas { flex-direction: column; width: 100%; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
  .trust-strip { grid-template-columns: repeat(2, 1fr); }
  .how-grid, .why-section { grid-template-columns: 1fr; }
  .pain-grid { grid-template-columns: 1fr; gap: 0; }
  .pain-item { padding: 1rem 0; }
  .ct-header, .ct-row { grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr) minmax(0, 0.8fr); }
  .ct-row > div:first-child { font-size: 0.82rem; }
  .ct-row > div:not(:first-child) { font-size: 0.82rem; padding: 0.8rem 0.5rem; }
  .ct-col-label { padding: 0.65rem 0.5rem; font-size: 0.68rem; }
  .pricing-card { grid-template-columns: 1fr; }
  .pricing-right { order: -1; }
  .pricing-actions .btn { width: 100%; justify-content: center; }

  /* Rule preview */
  .rule-preview-blocks { grid-template-columns: 1fr; }
  .rule-preview-block { border-right: none; border-bottom: 1px solid var(--line); }
  .rule-preview-block:last-child { border-bottom: none; }

  /* SEO rule pages */
  .rules-index-grid { grid-template-columns: 1fr; }
  .rule-blocks { grid-template-columns: 1fr; }
  .rule-article { padding: 1.25rem 0.5rem; }
  .rules-cta-inner .hero-ctas { flex-direction: column; }
  .rules-cta-inner .hero-ctas .btn { width: 100%; justify-content: center; }

  /* Practice */
  .practice-mode { flex-direction: column; gap: 0.5rem; }
  .practice-mode-actions { flex-direction: row; flex-wrap: wrap; width: auto; }
  .practice-mode-actions .btn { width: auto; }
  .option-btn { min-height: 3.5rem; }
  .question-text { font-size: 1.1rem; }

  /* Dashboard */
  .mode-strip { grid-template-columns: 1fr; }
  .stats-summary { grid-template-columns: repeat(3, 1fr); }

  /* Learn */
  .principle-summary-grid { grid-template-columns: 1fr; }
  .resume-card { flex-direction: column; align-items: flex-start; padding: 1rem; }
  .resume-card .btn { width: auto; }

  /* Stats */
  .stats-reset-card { flex-direction: column; align-items: flex-start; }
  .form-actions { flex-direction: column; }
  .form-actions form, .form-actions form .btn, .form-actions .btn { width: 100%; }

  /* Tables */
  .table-wrap { margin-right: -0.5rem; }
  .table-wrap table { min-width: 560px; }

  /* Welcome */
  .welcome { margin: 0.75rem auto; }
}