/* PowerEdge Academy — global styles.
   Light mode: pure white outside the canvas, black text, brand accents.
   Dark mode:  pure black outside the canvas, white text, brand accents.
   The canvases keep their internal #0c1733 navy. */
:root {
  --navy:      #11264a;
  --navy-2:    #1b3669;
  --navy-soft: #233e72;
  --orange:    #ee7a1c;
  --orange-2:  #f99c3f;
  --bg:        #ffffff;
  --card:      #ffffff;
  --ink:       #000000;
  --muted:     #555555;
  --line:      #dddddd;
  --good:      #1e9e70;
  --bad:       #c8385a;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  min-height: 100vh;
}

a { color: var(--ink); text-decoration: none; border-bottom: 1px solid transparent; }
a:hover { color: var(--orange); border-bottom-color: var(--orange); }
.topnav a, .crumbs a, .card { border-bottom: 0 !important; }
.card:hover { border-color: var(--orange); }

/* ---------- Top nav ---------- */
.topnav {
  background: var(--bg);
  color: var(--ink);
  padding: 14px 28px;
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.topnav .brand { display: flex; align-items: center; gap: 12px; }
.topnav .brand img { height: 38px; }
.topnav .brand-text {
  display: flex; flex-direction: column; line-height: 1.05;
  color: var(--ink);
}
.topnav .brand-text strong {
  font-size: 1.05rem; letter-spacing: 0.5px;
}
.topnav .brand-text span {
  font-size: 0.7rem; color: var(--orange); letter-spacing: 1.4px; text-transform: uppercase;
}
.topnav .nav-actions { display: flex; gap: 14px; align-items: center; }
.topnav .nav-actions a { color: var(--ink); font-size: 0.9rem; }
.topnav .nav-actions a:hover { color: var(--orange); }
.topnav .who { color: var(--muted); font-size: 0.78rem; }

/* ---------- Layout ---------- */
.container {
  max-width: 1100px;
  margin: 32px auto;
  padding: 0 24px;
}
.crumbs {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 14px;
}
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--orange); }
.crumbs .sep { margin: 0 7px; opacity: 0.6; }

h1, h2, h3 {
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.01em;
}
h1 { font-size: 2.0rem; margin: 0 0 8px; }
h2 { font-size: 1.4rem; margin: 28px 0 12px; }
h3 { font-size: 1.1rem; margin: 18px 0 8px; }

.lede {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0 0 24px;
  max-width: 720px;
}

/* ---------- Cards ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
  margin-top: 18px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px 22px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  display: flex; flex-direction: column;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(17, 38, 74, 0.12);
  border-color: var(--orange-2);
}
.card .card-tag {
  font-size: 0.7rem;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 6px;
  font-weight: 600;
}
.card h3 { margin: 0 0 6px; }
.card p { margin: 0; color: var(--muted); font-size: 0.92rem; }
.card .card-meta {
  display: flex; gap: 12px; margin-top: 14px; flex-wrap: wrap;
  font-size: 0.78rem; color: var(--muted);
}
.card .card-meta .pill {
  background: #eef3fb;
  border-radius: 999px;
  padding: 3px 10px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--orange);
  color: #fff !important;
  padding: 10px 18px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.94rem;
  border: 0;
  cursor: pointer;
  transition: background 0.15s;
}
.btn:hover { background: var(--orange-2); }
.btn.ghost {
  background: transparent;
  color: var(--navy-2) !important;
  border: 1.5px solid var(--line);
}
.btn.ghost:hover { border-color: var(--orange); color: var(--orange) !important; background: #fff; }
.btn.small { padding: 7px 13px; font-size: 0.83rem; }

/* ---------- Login ---------- */
.login-shell {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(circle at 25% 15%, rgba(238,122,28,0.25), transparent 50%),
    radial-gradient(circle at 80% 85%, rgba(27,54,105,0.4), transparent 50%),
    linear-gradient(135deg, #0d1c39 0%, #1b3669 100%);
}
.login-card {
  background: #fff;
  border-radius: 18px;
  padding: 42px 44px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 30px 80px rgba(8, 18, 42, 0.45);
}
.login-card .logo-row {
  display: flex; align-items: center; gap: 14px; justify-content: center;
  margin-bottom: 8px;
}
.login-card .logo-row img { height: 56px; }
.login-card h1 {
  text-align: center; font-size: 1.45rem; margin: 6px 0 4px;
}
.login-card .tagline {
  text-align: center; color: var(--muted); font-size: 0.88rem; margin-bottom: 26px;
  letter-spacing: 0.4px;
}
.login-card label {
  display: block; font-size: 0.78rem; letter-spacing: 0.6px; text-transform: uppercase;
  color: var(--muted); font-weight: 600; margin-bottom: 6px;
}
.login-card input[type="text"], .login-card input[type="password"], .login-card input[type="email"] {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  font-size: 1rem;
  margin-bottom: 18px;
  font-family: inherit;
  background: #f8fafd;
  transition: border-color 0.15s, background 0.15s;
}
.login-card input:focus {
  outline: none; border-color: var(--orange); background: #fff;
}
.login-card .btn { width: 100%; justify-content: center; padding: 12px; }
.login-card .footnote {
  text-align: center; color: var(--muted); font-size: 0.75rem; margin-top: 18px;
}

.flash {
  background: #fde9ee;
  color: var(--bad);
  border-radius: 9px;
  padding: 10px 14px;
  font-size: 0.88rem;
  margin-bottom: 16px;
  border-left: 4px solid var(--bad);
}

/* ---------- Lesson page ---------- */
.lesson-header {
  background: linear-gradient(110deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  padding: 28px 32px;
  border-radius: 14px;
  margin-bottom: 22px;
}
.lesson-header h1 {
  color: #fff; margin-bottom: 4px;
}
.lesson-header p {
  margin: 0; color: #cfd8eb; font-size: 1rem;
}
.lesson-header .meta {
  margin-top: 12px; display: flex; gap: 8px; flex-wrap: wrap;
}
.lesson-header .meta .pill {
  background: rgba(255,255,255,0.12);
  color: #fff; font-size: 0.78rem; padding: 4px 12px; border-radius: 999px;
}

.canvas-wrap {
  background: #0a1428;
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 18px 40px rgba(8, 18, 42, 0.25);
  border: 1px solid #1d2c52;
}
canvas.scene {
  width: 100%;
  display: block;
  background: radial-gradient(ellipse at center, #182a51 0%, #0a1428 100%);
  border-radius: 8px;
}

/* ---------- Animation control panel ---------- */
.anim-controls {
  display: flex; flex-wrap: wrap; gap: 16px; align-items: center;
  margin-top: 14px; padding: 12px 14px;
  background: rgba(255,255,255,0.06);
  border-radius: 10px;
  color: #d6dceb;
  font-size: 0.88rem;
}
.anim-controls .group {
  display: flex; align-items: center; gap: 10px;
}
.anim-controls label { color: #b6bfd6; }
.anim-controls input[type="range"] {
  width: 160px; accent-color: var(--orange);
}
.anim-controls .btn { padding: 7px 14px; font-size: 0.84rem; }
.anim-controls .readout {
  font-family: 'JetBrains Mono', 'Consolas', monospace;
  font-size: 0.85rem;
  color: var(--orange-2);
  min-width: 70px; text-align: right;
}

/* ---------- Narrative ---------- */
.narrative {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 26px 30px;
  margin-top: 22px;
}
.narrative h2:first-child { margin-top: 0; }
.narrative ul { padding-left: 22px; }
.narrative li { margin-bottom: 6px; }
.narrative .formula {
  background: #f3f6fb;
  border-left: 4px solid var(--orange);
  padding: 12px 18px;
  margin: 14px 0;
  font-family: 'JetBrains Mono', 'Consolas', monospace;
  font-size: 0.96rem;
  color: var(--navy);
  border-radius: 0 8px 8px 0;
  overflow-x: auto;
}
.narrative .callout {
  background: #fff5ec;
  border-left: 4px solid var(--orange);
  padding: 12px 18px;
  margin: 16px 0;
  border-radius: 0 8px 8px 0;
  color: var(--ink);
  font-size: 0.94rem;
}
.narrative .callout strong { color: var(--orange); }

.scene-label {
  margin: 8px 0 0;
  color: #b6bfd6;
  font-size: 0.85rem;
  text-align: center;
  font-style: italic;
}

/* ---------- Lesson nav ---------- */
.lesson-nav {
  display: flex; justify-content: space-between; gap: 12px;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}
.lesson-nav a {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 18px; min-width: 180px;
  transition: border-color 0.15s, transform 0.12s;
}
.lesson-nav a:hover { border-color: var(--orange); transform: translateY(-2px); }
.lesson-nav .dir { font-size: 0.7rem; color: var(--muted); letter-spacing: 1.4px; text-transform: uppercase; }
.lesson-nav .name { font-weight: 600; color: var(--navy); margin-top: 4px; }
.lesson-nav .next { text-align: right; }

/* ---------- Narrator ---------- */
.narrator {
  background: linear-gradient(135deg, #fff 0%, #f6f9fe 100%);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 22px 16px;
  margin-top: 18px;
  box-shadow: 0 4px 18px rgba(17,38,74,0.06);
}
.narrator-header {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
}
.narrator .step-pill {
  background: var(--navy);
  color: #fff;
  font-size: 0.74rem;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  padding: 4px 11px;
  border-radius: 999px;
  font-weight: 600;
}
.narrator .step-title {
  font-size: 1.05rem;
  color: var(--navy);
  flex: 1;
  min-width: 200px;
}
.narrator-actions {
  display: flex; gap: 8px; flex-wrap: wrap;
}
.narrator-actions .btn { padding: 7px 13px; font-size: 0.84rem; }
.narrator-actions .btn[disabled] { opacity: 0.4; cursor: not-allowed; }
.narrator-actions .btn[aria-pressed="true"] {
  background: #fff5ec;
  color: var(--bad) !important;
  border-color: var(--bad);
}
.narrator-actions .vol-group {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  background: var(--bg);
  border: 1.5px solid var(--line);
  border-radius: 8px;
  font-size: 0.78rem;
  color: var(--muted);
}
.narrator-actions .vol-group .vol-icon { font-size: 0.95rem; }
.narrator-actions .vol-group .vol-slider {
  -webkit-appearance: none; appearance: none;
  width: 80px; height: 4px;
  background: var(--line);
  border-radius: 99px;
  outline: none;
}
.narrator-actions .vol-group .vol-slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 14px; height: 14px;
  background: var(--orange);
  border-radius: 50%;
  cursor: pointer;
}
.narrator-actions .vol-group .vol-slider::-moz-range-thumb {
  width: 14px; height: 14px;
  background: var(--orange);
  border-radius: 50%;
  border: 0;
  cursor: pointer;
}
.narrator-actions .vol-group .vol-readout {
  min-width: 32px; text-align: right;
  font-family: 'JetBrains Mono', Consolas, monospace;
  color: var(--navy-2);
}

/* Voice picker (dropdown, same chip-style as the volume control) */
.narrator-actions .voice-group {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  background: var(--bg);
  border: 1.5px solid var(--line);
  border-radius: 8px;
  font-size: 0.78rem;
  color: var(--muted);
}
.narrator-actions .voice-group .voice-icon { font-size: 0.95rem; }
.narrator-actions .voice-group .voice-picker {
  font-family: inherit;
  font-size: 0.78rem;
  padding: 2px 4px;
  background: transparent;
  border: none;
  color: var(--navy-2);
  cursor: pointer;
  max-width: 220px;
}
.narrator-actions .voice-group .voice-picker:focus {
  outline: 2px solid var(--orange); outline-offset: 1px;
}

/* Fullscreen lesson canvas */
.canvas-wrap.is-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: #0a1428;
  padding: 24px 28px;
  margin: 0;
  display: flex;
  flex-direction: column;
  overflow: auto;
}
.canvas-wrap.is-fullscreen .scene {
  flex: 1 1 auto;
  width: 100% !important;
  height: auto !important;
  min-height: 0;
}
.canvas-wrap.is-fullscreen .scene-label {
  color: #cdd9f3;
}
.canvas-wrap.is-fullscreen .anim-controls {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.18);
  color: #cdd9f3;
}
.canvas-wrap.is-fullscreen .anim-controls label,
.canvas-wrap.is-fullscreen .anim-controls .readout {
  color: #cdd9f3;
}
.narrator .step-body {
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.65;
  margin: 14px 0 12px;
}
.narrator .step-progress {
  display: flex; gap: 6px; margin-top: 6px;
}
.narrator .step-progress .dot {
  width: 26px; height: 5px; border-radius: 999px;
  background: var(--line); cursor: pointer;
  transition: background 0.18s;
}
.narrator .step-progress .dot.done { background: var(--orange-2); opacity: 0.6; }
.narrator .step-progress .dot.active { background: var(--orange); width: 44px; }
.narrator .step-progress .dot:hover { background: var(--orange-2); }

/* ---------- Quiz ---------- */
.quiz {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px 32px;
  margin-top: 22px;
  box-shadow: 0 6px 22px rgba(17,38,74,0.07);
}
.quiz-head { margin-bottom: 18px; }
.quiz-pill {
  display: inline-block;
  background: var(--orange);
  color: #fff;
  font-size: 0.7rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 11px;
  border-radius: 999px;
  font-weight: 600;
  margin-bottom: 10px;
}
.quiz-head h2 {
  margin: 0 0 6px;
  font-size: 1.4rem;
}
.quiz-sub {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.quiz-questions {
  list-style: none;
  padding: 0;
  margin: 22px 0 0;
  counter-reset: q;
}
.quiz-q {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
  margin-bottom: 14px;
  background: #fbfcfe;
  transition: border-color 0.2s, background 0.2s;
}
.quiz-q.is-correct { border-color: rgba(30,158,112,0.45); background: #f3fbf6; }
.quiz-q.is-wrong   { border-color: rgba(200,56,90,0.40);  background: #fdf6f8; }
.quiz-q-text {
  font-size: 1rem;
  color: var(--ink);
  font-weight: 500;
  margin-bottom: 12px;
  line-height: 1.5;
}
.quiz-q-text .qnum {
  color: var(--orange);
  font-weight: 700;
  margin-right: 6px;
}

.quiz-options {
  display: flex; flex-direction: column; gap: 8px;
}
.quiz-option {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px 14px;
  border: 1.5px solid var(--line);
  border-radius: 9px;
  cursor: pointer;
  background: #fff;
  transition: border-color 0.15s, background 0.15s, transform 0.08s;
  font-size: 0.95rem;
  line-height: 1.4;
}
.quiz-option:hover { border-color: var(--orange-2); background: #fff8f0; }
.quiz-option input[type="radio"] {
  margin-top: 3px;
  accent-color: var(--orange);
  cursor: pointer;
}
.quiz-option input[type="radio"]:disabled { cursor: default; }
.quiz-option .opt-letter {
  background: #eef3fb;
  color: var(--navy);
  font-weight: 700;
  font-size: 0.78rem;
  width: 22px; height: 22px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.quiz-option .opt-text { flex: 1; }
.quiz-option.picked    { font-weight: 500; }
.quiz-option.correct {
  border-color: var(--good);
  background: #ecf9f2;
}
.quiz-option.correct .opt-letter { background: var(--good); color: #fff; }
.quiz-option.wrong {
  border-color: var(--bad);
  background: #fceef2;
}
.quiz-option.wrong .opt-letter { background: var(--bad); color: #fff; }

.quiz-explain {
  margin-top: 12px;
  padding: 10px 14px;
  background: #f3f6fb;
  border-left: 4px solid var(--navy-2);
  border-radius: 0 6px 6px 0;
  font-size: 0.9rem;
  color: var(--ink);
  line-height: 1.5;
}
.quiz-explain .ok  { color: var(--good); }
.quiz-explain .bad { color: var(--bad); }

.quiz-actions {
  display: flex; align-items: center; gap: 14px;
  margin-top: 12px;
  flex-wrap: wrap;
}
.quiz-actions .btn[disabled] { opacity: 0.45; cursor: not-allowed; }
.quiz-progress {
  color: var(--muted);
  font-size: 0.88rem;
}
.quiz-progress.done { color: var(--good); font-weight: 500; }

/* Result card */
.quiz-result-card {
  margin-top: 24px;
  display: flex; gap: 26px; align-items: center;
  padding: 26px 30px;
  border-radius: 14px;
  border: 2px solid var(--line);
  background: linear-gradient(135deg, #fff 0%, #f6f9fe 100%);
}
.quiz-result-card.tone-solid {
  border-color: #f0a345;
  background: linear-gradient(135deg, #fffaf2 0%, #fff5e6 100%);
}
.quiz-result-card.tone-good {
  border-color: #4ec08c;
  background: linear-gradient(135deg, #f1fbf6 0%, #e6f7ee 100%);
}
.quiz-result-card.tone-improve {
  border-color: #6088c8;
  background: linear-gradient(135deg, #f3f7fc 0%, #e8efff 100%);
}

.score-circle {
  width: 130px; height: 130px;
  border-radius: 50%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: #fff;
  border: 6px solid var(--orange);
  box-shadow: 0 6px 18px rgba(17,38,74,0.08);
  flex-shrink: 0;
}
.tone-solid   .score-circle { border-color: #ee7a1c; }
.tone-good    .score-circle { border-color: var(--good); }
.tone-improve .score-circle { border-color: #5a89d6; }
.score-num {
  font-size: 1.8rem; font-weight: 700; color: var(--navy);
  line-height: 1.0;
}
.score-num .score-of {
  font-size: 1rem; color: var(--muted); font-weight: 500;
}
.score-pct { font-size: 0.85rem; color: var(--muted); margin-top: 4px; letter-spacing: 0.6px; }

.result-text { flex: 1; }
.result-text h3 {
  margin: 0 0 6px;
  font-size: 1.25rem;
  color: var(--navy);
}
.result-text p {
  margin: 0 0 14px;
  color: var(--ink);
  line-height: 1.6;
}
.result-actions {
  display: flex; gap: 10px; flex-wrap: wrap;
}

/* ---------- Progress page ---------- */
.progress-overall {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px 26px;
  margin: 18px 0 28px;
}
.overall-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 16px;
}
.overall-stats .stat { text-align: center; }
.overall-stats .stat-value {
  font-size: 2.1rem; font-weight: 700; color: var(--navy);
  font-family: 'JetBrains Mono', Consolas, monospace;
}
.overall-stats .stat-value.muted { color: var(--muted); }
.overall-stats .stat-of {
  font-size: 1.0rem; color: var(--muted); font-weight: 500; margin-left: 4px;
}
.overall-stats .stat-label {
  font-size: 0.82rem; color: var(--muted); margin-top: 2px;
}
.progress-bar {
  background: var(--line);
  border-radius: 99px;
  height: 8px;
  overflow: hidden;
}
.progress-bar-fill {
  background: linear-gradient(90deg, var(--orange), var(--orange-2));
  height: 100%;
  transition: width 0.3s ease;
}

.progress-topic {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px 26px;
  margin: 0 0 22px;
}
.progress-topic .topic-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 18px; flex-wrap: wrap; margin-bottom: 12px;
}
.progress-topic .topic-head h2 { margin: 4px 0 4px; }
.progress-topic .topic-head .muted { color: var(--muted); font-size: 0.92rem; margin: 0; }
.progress-topic .topic-stats {
  display: flex; gap: 18px; align-items: flex-start;
}
.progress-topic .topic-stat { text-align: center; min-width: 64px; }
.progress-topic .topic-stat .value {
  font-size: 1.1rem; font-weight: 700; color: var(--navy);
  font-family: 'JetBrains Mono', Consolas, monospace;
}
.progress-topic .topic-stat .label {
  font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em;
}
.progress-topic .progress-bar { margin: 14px 0 18px; }

.chapter-block { margin-top: 18px; }
.chapter-block h3 {
  font-size: 1.0rem; color: var(--navy-2);
  margin: 0 0 8px; padding-bottom: 6px; border-bottom: 1px solid var(--line);
}
.lesson-progress { list-style: none; padding: 0; margin: 0; }
.lp-row {
  display: grid;
  grid-template-columns: 2fr 3fr auto;
  gap: 12px;
  align-items: center;
  padding: 10px 4px;
  border-bottom: 1px solid var(--line);
}
.lp-row:last-child { border-bottom: none; }
.lp-row.tone-untouched { opacity: 0.7; }
.lp-row.tone-improve { background: rgba(238, 122, 28, 0.04); }
.lp-row.tone-good    { background: rgba(30, 158, 112, 0.05); }
.lp-row.tone-solid   { background: rgba(30, 158, 112, 0.10); }
.lp-title { font-weight: 600; color: var(--navy); }
.lp-title:hover { color: var(--orange); }
.lp-sub { color: var(--muted); font-size: 0.86rem; }
.lp-result { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.score-text {
  font-family: 'JetBrains Mono', Consolas, monospace;
  font-weight: 700; color: var(--navy);
}
.score-pct { color: var(--muted); font-size: 0.85rem; }
.lp-attempts { color: var(--muted); font-size: 0.78rem; }

.badge {
  font-size: 0.72rem; padding: 3px 9px; border-radius: 99px;
  text-transform: uppercase; letter-spacing: 0.05em; font-weight: 700;
}
.badge-solid    { background: var(--good); color: #fff; }
.badge-good     { background: rgba(30, 158, 112, 0.15); color: var(--good); }
.badge-improve  { background: rgba(238, 122, 28, 0.18); color: var(--orange); }
.badge-untouched { background: var(--line); color: var(--muted); }

.progress-strengths, .progress-weak {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px 26px;
  margin: 0 0 22px;
}
.progress-strengths h2, .progress-weak h2 { margin: 0 0 10px; color: var(--navy); }
.strength-list { padding-left: 22px; line-height: 1.7; }
.strength-list a { font-weight: 600; }
.weak-list { padding-left: 22px; }
.weak-list li { margin-bottom: 18px; }
.weak-q { font-weight: 600; color: var(--navy); margin-bottom: 4px; }
.weak-explain { color: var(--ink); font-size: 0.92rem; line-height: 1.5; margin-bottom: 4px; }
.weak-source { color: var(--muted); font-size: 0.8rem; }

/* Topic-level progress line */
.topic-progress-line {
  display: flex; align-items: baseline; gap: 8px;
  margin: 6px 0 8px;
  font-size: 0.88rem;
}
.topic-progress-pct {
  font-family: 'JetBrains Mono', Consolas, monospace;
  font-weight: 700; color: var(--orange);
}
.topic-progress-detail { color: var(--muted); }

/* Per-lesson review link */
.lp-review-link {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--orange-2);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-left: 6px;
}
.lp-review-link:hover { color: var(--orange); }

/* Lesson-detail review page: question-by-question list */
.review-list .lp-row { display: grid; }
.review-list .review-num {
  align-self: flex-start;
  padding-top: 2px;
}
.review-list .ok  { color: var(--good); font-weight: 600; }
.review-list .bad { color: var(--bad); font-weight: 600; }

/* Attempt-history table */
.attempt-history {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.attempt-history th, .attempt-history td {
  padding: 8px 10px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
.attempt-history th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.attempt-history td { font-family: 'JetBrains Mono', Consolas, monospace; }
.attempt-history tr:last-child td { border-bottom: none; }

/* ---------- Mobile tweaks ---------- */
@media (max-width: 700px) {
  .topnav { padding: 12px 16px; }
  .container { padding: 0 16px; margin: 18px auto; }
  .lesson-header { padding: 22px 18px; }
  .narrative { padding: 22px 18px; }
  .narrator-header { gap: 8px; }
  .narrator-actions .btn { padding: 6px 10px; font-size: 0.78rem; }
  .quiz { padding: 22px 18px; }
  .quiz-result-card { flex-direction: column; padding: 22px 20px; gap: 18px; text-align: center; }
  .result-actions { justify-content: center; }
  .overall-stats { grid-template-columns: 1fr; gap: 10px; }
  .lp-row { grid-template-columns: 1fr; gap: 4px; }
  .lp-result { justify-content: flex-start; }
}

/* ---------- Section cards (dashboard) ---------- */
.section-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.section-card { position: relative; overflow: hidden; }
.section-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
}
.section-card.section-pe-course::before     { background: linear-gradient(90deg, var(--orange), var(--orange-2)); }
.section-card.section-deep-learning::before { background: linear-gradient(90deg, var(--navy), var(--navy-2)); }
.section-card.section-upskill::before       { background: linear-gradient(90deg, var(--good), #33c08c); }

/* ---------- Empty state ---------- */
.empty-state {
  background: var(--card); border: 1px dashed var(--line);
  padding: 36px 28px; border-radius: 12px; text-align: center; color: var(--muted);
  margin-top: 18px;
}
.empty-state h2 { margin-top: 0; color: var(--ink); }

/* ---------- Pill small variant ---------- */
.pill.small { padding: 1px 8px; font-size: 0.72rem; }

/* ---------- Admin button extras ---------- */
.btn.xsmall {
  padding: 3px 8px; font-size: 0.78rem; line-height: 1.1;
}
.btn.dirty {
  background: var(--orange); border-color: var(--orange);
  box-shadow: 0 0 0 4px rgba(238,122,28,0.18);
}
.readout.ok   { color: var(--good); }
.readout.warn { color: var(--orange); }
.readout.err  { color: var(--bad); }

/* ---------- Admin sections layout ---------- */
.admin-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 18px;
  margin-top: 18px;
  align-items: start;
}
.admin-lesson-pool {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 16px; position: sticky; top: 80px; max-height: calc(100vh - 100px);
  overflow: auto;
}
.admin-lesson-pool h2 { margin-top: 0; font-size: 1.05rem; }
.admin-search {
  width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px;
  font-family: inherit; font-size: 0.9rem; margin-bottom: 10px;
}
.admin-lesson-list { list-style: none; padding: 0; margin: 0; }
.admin-lesson-item {
  padding: 10px 8px; border-bottom: 1px solid var(--line);
}
.admin-lesson-item:last-child { border-bottom: none; }
.all-title { font-weight: 600; font-size: 0.9rem; }
.all-slug code { font-size: 0.72rem; color: var(--muted); }
.all-sub  { font-size: 0.78rem; color: var(--muted); margin-top: 2px; }
.all-tags { margin-top: 4px; display: flex; flex-wrap: wrap; gap: 3px; }
.all-locations { margin-top: 4px; display: flex; flex-wrap: wrap; gap: 3px; }
.loc-pill   { background: #e8efff; color: var(--navy); border: 1px solid #cdd9f3; }
.loc-unused { background: #fcecec; color: var(--bad);  border: 1px solid #f6cdd3; }

/* Sections tree */
.admin-sections-tree { display: flex; flex-direction: column; gap: 16px; }
.admin-section {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 16px;
}
.admin-section-head {
  display: flex; justify-content: space-between; align-items: flex-start; gap: 12px;
  margin-bottom: 12px;
}
.admin-section-head h2 { margin: 0; font-size: 1.15rem; cursor: pointer; }
.admin-section-head h2:hover { color: var(--orange); }
.admin-section-actions { display: flex; gap: 8px; }
.admin-topics { display: flex; flex-direction: column; gap: 12px; }
.admin-topic {
  background: #f8fafd; border: 1px solid var(--line); border-radius: 10px;
  padding: 12px;
}
.admin-topic-head {
  display: flex; justify-content: space-between; align-items: flex-start; gap: 10px;
}
.admin-topic-head h3 { margin: 0 0 4px; font-size: 1rem; cursor: pointer; }
.admin-topic-head h3:hover { color: var(--orange); }
.admin-topic-actions { display: flex; gap: 6px; }
.admin-chapters { display: flex; flex-direction: column; gap: 10px; margin-top: 10px; }
.admin-chapter {
  background: var(--card); border: 1px solid var(--line); border-radius: 8px;
  padding: 10px 12px;
}
.admin-chapter-head {
  display: flex; justify-content: space-between; align-items: flex-start; gap: 10px;
}
.admin-chapter-head h4 { margin: 0 0 2px; font-size: 0.95rem; cursor: pointer; }
.admin-chapter-head h4:hover { color: var(--orange); }
.admin-chapter-lessons { list-style: none; padding: 0; margin: 8px 0; }
.admin-chapter-lesson {
  display: grid; grid-template-columns: 16px 1fr auto auto; gap: 6px;
  align-items: center; padding: 4px 6px; border-bottom: 1px dashed var(--line);
  font-size: 0.88rem;
}
.admin-chapter-lesson:last-child { border-bottom: none; }
.admin-chapter-lesson.unknown { background: #fcecec; }
.lesson-handle { color: var(--muted); }
.lesson-actions { display: flex; gap: 2px; }
.admin-chapter-add select {
  width: 100%; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px;
  font-family: inherit; font-size: 0.85rem; margin-top: 6px;
}

@media (max-width: 900px) {
  .admin-layout { grid-template-columns: 1fr; }
  .admin-lesson-pool { position: static; max-height: none; }
}

/* Progress: topic-block inside section */
.topic-block { margin: 14px 0; }
.topic-block > h3 {
  margin: 0 0 8px; padding-bottom: 4px; border-bottom: 1px solid var(--line);
  font-size: 1.05rem;
}
.topic-block > .chapter-block > h4 {
  margin: 8px 0 6px; font-size: 0.95rem; color: var(--muted);
}

/* ---------- Role badge in topnav ---------- */
.role-badge {
  display: inline-block; padding: 1px 7px; margin-left: 6px;
  background: var(--orange); color: white;
  border-radius: 8px; font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.05em; text-transform: uppercase;
}

/* ---------- Flash categories ---------- */
.flash {
  margin: 12px 0; padding: 10px 14px; border-radius: 8px;
  border: 1px solid var(--line); background: #fff;
}
.flash-error   { background: #fdecef; border-color: #f6cdd3; color: #9a2244; }
.flash-success { background: #e9f8f1; border-color: #b8e5d1; color: #115a3f; }

/* ---------- Login admin variant ---------- */
.login-card-admin { border-top: 4px solid var(--orange); }

/* ---------- Subscribers table ---------- */
.subs-table {
  width: 100%; border-collapse: collapse; margin-top: 16px;
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  overflow: hidden;
}
.subs-table th, .subs-table td {
  padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--line);
  font-size: 0.88rem;
}
.subs-table th {
  color: var(--muted); font-weight: 600;
  text-transform: uppercase; font-size: 0.72rem; letter-spacing: 0.05em;
  background: #f8fafd;
}
.subs-table tbody tr:last-child td { border-bottom: none; }
.sub-row.sub-inactive { opacity: 0.55; }
.sub-row.sub-pending  { background: #fff8ec; }
.row-actions { display: flex; gap: 4px; align-items: center; }

/* ---------- Subscriber form ---------- */
.sub-form { margin-top: 20px; }
.form-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 18px;
}
.form-grid label { display: flex; flex-direction: column; gap: 6px; font-size: 0.88rem; }
.form-grid label span { color: var(--muted); font-weight: 600; }
.form-grid label .muted { color: var(--muted); font-weight: 400; font-style: italic; }
.form-grid label.span-2 { grid-column: 1 / -1; }
.form-grid input, .form-grid textarea {
  padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px;
  font-family: inherit; font-size: 0.95rem; background: white;
}
.form-actions { display: flex; gap: 10px; align-items: center; }

/* ---------- Access picker ---------- */
.access-picker {
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 14px;
}
.access-section {
  border-bottom: 1px solid var(--line); padding: 10px 0;
}
.access-section:last-child { border-bottom: none; }
.access-section > summary {
  cursor: pointer; padding: 6px 0; font-size: 1rem;
  list-style: none;
}
.access-section > summary::-webkit-details-marker { display: none; }
.access-section > summary::before {
  content: '▾'; display: inline-block; margin-right: 6px; color: var(--muted);
  transition: transform 0.15s;
}
.access-section:not([open]) > summary::before { transform: rotate(-90deg); }
.access-topic { margin: 10px 0 10px 24px; }
.access-chapter { margin: 6px 0 6px 24px; }
.access-lessons { list-style: none; margin: 4px 0 4px 24px; padding: 0; }
.access-lessons li { padding: 2px 0; font-size: 0.88rem; }
.bulk-toggle { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; }
.bulk-toggle input { margin: 0; }

/* ---------- Reset link card ---------- */
.callout {
  background: #fff8ec; border: 1px solid #f3d99b; color: #6b4a00;
  padding: 14px 16px; border-radius: 10px; margin: 16px 0;
}
.reset-link-row { display: flex; gap: 8px; align-items: center; margin-top: 8px; }
.reset-link-input {
  flex: 1; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px;
  font-family: 'JetBrains Mono', Consolas, monospace; font-size: 0.78rem;
  background: white;
}

/* ---------- Empty-state spacing ---------- */
.empty-state h2 { margin-top: 0; }

/* ====================================================================== */
/* Dark mode — theme toggle in topnav writes data-theme="dark" on <html>. */
/* Strategy: redefine the CSS variables; then patch specific selectors    */
/* that were authored with hardcoded light backgrounds.                   */
/* ====================================================================== */
[data-theme="dark"] {
  --navy:      #11264a;
  --navy-2:    #1b3669;
  --navy-soft: #233e72;
  --orange:    #f48a30;
  --orange-2:  #ffa554;
  --bg:        #000000;
  --card:      #0a0a0a;
  --ink:       #ffffff;
  --muted:     #aaaaaa;
  --line:      #222222;
  --good:      #3fce97;
  --bad:       #e96b88;
}

/* Topnav already cascades --bg / --ink; no override needed in dark mode. */

/* Pill chips inside cards */
[data-theme="dark"] .card .card-meta .pill { background: #1a1a1a; color: var(--muted); }

/* Login + admin login cards */
[data-theme="dark"] .login-card,
[data-theme="dark"] .admin-section,
[data-theme="dark"] .admin-lesson-pool,
[data-theme="dark"] .empty-state,
[data-theme="dark"] .progress-overall,
[data-theme="dark"] .progress-topic,
[data-theme="dark"] .progress-section,
[data-theme="dark"] .progress-weak,
[data-theme="dark"] .progress-strengths,
[data-theme="dark"] .form-grid,
[data-theme="dark"] .access-picker,
[data-theme="dark"] .chapter-block,
[data-theme="dark"] .quiz,
[data-theme="dark"] .narrator,
[data-theme="dark"] .anim-controls,
[data-theme="dark"] .lesson-header,
[data-theme="dark"] .narrative,
[data-theme="dark"] .quiz-result-card,
[data-theme="dark"] .subs-table,
[data-theme="dark"] .quiz-q,
[data-theme="dark"] .admin-topic,
[data-theme="dark"] .admin-chapter {
  background: var(--card);
  border-color: var(--line);
  color: var(--ink);
}

/* Inputs */
[data-theme="dark"] input[type="text"],
[data-theme="dark"] input[type="email"],
[data-theme="dark"] input[type="password"],
[data-theme="dark"] input[type="search"],
[data-theme="dark"] textarea,
[data-theme="dark"] select,
[data-theme="dark"] .login-card input[type="text"],
[data-theme="dark"] .login-card input[type="email"],
[data-theme="dark"] .login-card input[type="password"],
[data-theme="dark"] .form-grid input,
[data-theme="dark"] .form-grid textarea,
[data-theme="dark"] .admin-search,
[data-theme="dark"] .reset-link-input {
  background: #141414;
  border-color: var(--line);
  color: var(--ink);
}
[data-theme="dark"] input::placeholder, [data-theme="dark"] textarea::placeholder { color: #6b7ea3; }

/* Anim controls strip below canvas */
[data-theme="dark"] .anim-controls { background: #0a1428; border-color: var(--line); }
[data-theme="dark"] .anim-controls label,
[data-theme="dark"] .anim-controls .readout { color: var(--muted); }

/* Narrator detail panels */
[data-theme="dark"] .narrator-header,
[data-theme="dark"] .narrator-actions .vol-group,
[data-theme="dark"] .narrator-actions .voice-group {
  background: #141414; border-color: var(--line);
}

/* Quiz result tinted cards */
[data-theme="dark"] .quiz-q.is-correct { background: rgba(63,206,151,0.10); border-color: rgba(63,206,151,0.45); }
[data-theme="dark"] .quiz-q.is-wrong   { background: rgba(233,107,136,0.10); border-color: rgba(233,107,136,0.45); }
[data-theme="dark"] .quiz-result-card.tone-solid   { background: #0d2a22; }
[data-theme="dark"] .quiz-result-card.tone-good    { background: #141414; }
[data-theme="dark"] .quiz-result-card.tone-improve { background: #2a1226; }

/* Score badges keep their hue but lift on dark */
[data-theme="dark"] .badge-untouched { background: #1a1a1a; color: var(--muted); }
[data-theme="dark"] .badge-good      { background: rgba(96,136,200,0.20); color: #9bb0d6; }
[data-theme="dark"] .badge-solid     { background: rgba(63,206,151,0.20); color: #6cd9b0; }
[data-theme="dark"] .badge-improve   { background: rgba(244,138,48,0.20); color: var(--orange); }

/* Tables */
[data-theme="dark"] .subs-table th { background: #141414; color: var(--muted); }
[data-theme="dark"] .subs-table th, [data-theme="dark"] .subs-table td { border-color: var(--line); }
[data-theme="dark"] .attempt-history th, [data-theme="dark"] .attempt-history td { border-color: var(--line); }

/* Flashes */
[data-theme="dark"] .flash         { background: var(--card); border-color: var(--line); color: var(--ink); }
[data-theme="dark"] .flash-error   { background: #2a1024; border-color: #5a1f3a; color: #f3b6c5; }
[data-theme="dark"] .flash-success { background: #0d2a22; border-color: #1d543f; color: #a4e2c8; }

/* Callout */
[data-theme="dark"] .callout { background: #2a2110; border-color: #5a4720; color: #f3d7a0; }

/* Score circles */
[data-theme="dark"] .score-circle { background: #141414; }

/* Admin location pills */
[data-theme="dark"] .loc-pill   { background: #1a1a1a; color: #b8c7e8; border-color: var(--line); }
[data-theme="dark"] .loc-unused { background: #3a1226; color: var(--bad); border-color: #5a1f3a; }

/* Admin section topic block (lighter than card) */
[data-theme="dark"] .admin-topic { background: #141414; }

/* Buttons keep orange, ghost gets dark surface */
[data-theme="dark"] .btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
[data-theme="dark"] .btn.ghost:hover { background: #1a1a1a; }

/* Step progress dots */
[data-theme="dark"] .dot { background: var(--line); }

/* Theme toggle button (added to topnav by theme.js) */
.theme-toggle {
  background: transparent; border: 0; color: inherit; cursor: pointer;
  font-size: 1.05rem; line-height: 1; padding: 6px 8px; border-radius: 8px;
  display: inline-flex; align-items: center;
}
.theme-toggle:hover { background: rgba(255,255,255,0.12); }