:root {
  --bg: #f7f9ff;
  --surface: #ffffff;
  --surface-soft: #f8faff;
  --ink: #0f1b3d;
  --muted: #718096;
  --line: #e6eaf5;
  --primary: #5b5ee6;
  --primary-2: #7c3aed;
  --blue: #2563eb;
  --cyan: #06b6d4;
  --pink: #ec4899;
  --success: #16a34a;
  --success-bg: #eafaf0;
  --danger: #ef4444;
  --danger-bg: #fff0f3;
  --warning: #f59e0b;
  --warning-bg: #fff7e6;
  --shadow: 0 22px 60px rgba(22, 34, 78, .08);
  --shadow-sm: 0 10px 28px rgba(22, 34, 78, .07);
  --radius: 24px;
  --sidebar: 284px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 8% 8%, rgba(91, 94, 230, .12), transparent 28%),
    radial-gradient(circle at 95% 12%, rgba(236, 72, 153, .12), transparent 26%),
    linear-gradient(135deg, #fbfcff 0%, var(--bg) 55%, #f4fbff 100%);
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(91,94,230,.038) 1px, transparent 1px), linear-gradient(90deg, rgba(91,94,230,.038) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 80%);
}

a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; line-height: 1.16; letter-spacing: -.035em; }
p { margin: 0; line-height: 1.75; color: var(--muted); }
label { font-weight: 850; color: #25314f; font-size: .92rem; }
input[type="text"], input[type="file"], textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 16px;
  padding: 13px 15px;
  font: inherit;
  outline: none;
  transition: border-color .18s ease, box-shadow .18s ease;
}
textarea { resize: vertical; min-height: 92px; }
select { cursor: pointer; }
input:focus, textarea:focus, select:focus {
  border-color: rgba(91,94,230,.55);
  box-shadow: 0 0 0 5px rgba(91,94,230,.11);
}

.app-shell { display: grid; grid-template-columns: var(--sidebar) 1fr; min-height: 100vh; position: relative; z-index: 1; }
.sidebar {
  position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column;
  border-right: 1px solid var(--line);
  background: rgba(255,255,255,.78);
  backdrop-filter: blur(22px);
  padding: 32px 20px 22px;
}
.brand { display: flex; align-items: center; gap: 12px; padding: 0 16px 30px; }
.brand-logo { width: 54px; height: 54px; filter: drop-shadow(0 14px 24px rgba(91,94,230,.18)); }
.brand strong { display: block; font-size: 1.12rem; letter-spacing: .02em; }
.brand small { display: block; margin-top: 2px; color: var(--pink); letter-spacing: .28em; font-weight: 800; font-size: .72rem; }
.nav { display: grid; gap: 8px; }
.nav-item {
  display: flex; align-items: center; gap: 14px;
  border-radius: 16px; padding: 14px 16px;
  color: #263659; font-weight: 760;
  transition: background .16s ease, color .16s ease, transform .16s ease;
}
.nav-item span {
  display: grid; place-items: center;
  width: 26px; height: 26px;
  color: #5a6b8e;
  font-weight: 900;
}
.nav-item:hover { background: #f0f3ff; transform: translateX(2px); }
.nav-item.active { color: var(--primary); background: linear-gradient(135deg, rgba(91,94,230,.14), rgba(124,58,237,.08)); }
.nav-item.active span { color: var(--primary); }
.doctor-card {
  margin-top: auto;
  display: grid; grid-template-columns: 42px 1fr auto; gap: 10px; align-items: center;
  padding: 12px; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow-sm);
}
.doctor-avatar, .profile-badge {
  display: grid; place-items: center; border-radius: 999px;
  color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-2));
  font-weight: 900;
}
.doctor-avatar { width: 42px; height: 42px; }
.doctor-card strong { display: block; font-size: .95rem; }
.doctor-card small { color: var(--muted); font-size: .75rem; }
.pro-chip { font-size: .68rem; font-weight: 900; color: var(--pink); background: #ffeaf5; padding: 5px 7px; border-radius: 99px; }
.sidebar-footer { padding: 22px 12px 0; color: #98a2b3; font-size: .78rem; line-height: 1.6; }

.main { min-width: 0; padding: 22px 34px 42px; }
.topbar { display: flex; justify-content: flex-end; align-items: center; gap: 18px; margin-bottom: 26px; }
.breadcrumb-pill {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--line); border-radius: 14px; padding: 12px 16px;
  background: rgba(255,255,255,.82); box-shadow: var(--shadow-sm);
  color: #6750dc; font-weight: 850; font-size: .88rem;
}
.breadcrumb-pill span { color: var(--pink); }
.top-profile { display: flex; align-items: center; gap: 9px; font-size: .92rem; }
.profile-badge { width: 42px; height: 42px; background: #ece9ff; color: var(--primary); }

.card {
  background: rgba(255,255,255,.9);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.page-heading {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 24px;
  margin: 4px 0 26px;
}
.page-heading h1 { font-size: clamp(2.1rem, 4vw, 3.25rem); max-width: 940px; color: #101a3d; }
.page-heading p { margin-top: 10px; font-size: 1.06rem; max-width: 880px; }
.heading-actions { display: flex; align-items: center; justify-content: flex-end; gap: 10px; flex-shrink: 0; }
.wrap-actions { flex-wrap: wrap; max-width: 520px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  margin-bottom: 12px; padding: 7px 12px;
  color: var(--primary); background: #f0f1ff; border-radius: 999px;
  font-weight: 900; font-size: .84rem;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px;
  padding: 12px 17px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  color: #293657;
  font-weight: 900;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); border-color: #d6dcf2; }
.btn.primary { color: #fff; border-color: transparent; background: linear-gradient(135deg, #5b7cfa, var(--primary), var(--primary-2)); box-shadow: 0 18px 34px rgba(91,94,230,.25); }
.btn.primary-soft { color: var(--primary); background: #f0f1ff; border-color: #dcdfff; }
.btn.ghost { background: rgba(255,255,255,.74); }
.btn.wide { width: 100%; }
.btn.tiny { min-height: 36px; border-radius: 12px; padding: 8px 12px; font-size: .84rem; }
.big-btn { padding-inline: 28px; }

.alerts { display: grid; gap: 10px; margin-bottom: 20px; }
.alert { padding: 14px 16px; border-radius: 16px; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow-sm); font-weight: 760; }
.alert.success { border-color: #bdf2cc; background: var(--success-bg); color: #166534; }
.alert.error { border-color: #ffd0da; background: var(--danger-bg); color: #991b1b; }
.alert.warning { border-color: #ffe4a8; background: var(--warning-bg); color: #92400e; }

.dashboard-grid { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 24px; align-items: start; }
.dashboard-main { min-width: 0; display: grid; gap: 18px; }
.dashboard-side { position: sticky; top: 24px; display: grid; gap: 18px; }
.upload-panel { padding: 0; overflow: hidden; }
.upload-form { display: grid; grid-template-columns: minmax(0, 1.4fr) 320px; min-height: 300px; }
.upload-zone {
  position: relative;
  display: grid; justify-items: center; align-content: center; text-align: center;
  padding: 42px 28px; margin: 28px;
  border: 2px dashed rgba(91,94,230,.32); border-radius: 24px;
  background: linear-gradient(135deg, rgba(255,255,255,.82), rgba(248,250,255,.8));
}
.upload-zone.has-file { border-color: rgba(22,163,74,.45); background: #fbfffc; }
.upload-zone input[type=file] { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.upload-cloud { width: 76px; height: 76px; display: grid; place-items: center; border-radius: 28px; color: var(--primary); background: #eef0ff; font-size: 2.3rem; font-weight: 900; margin-bottom: 18px; }
.upload-zone h2 { font-size: 1.35rem; margin-bottom: 6px; }
.upload-note { display: block; margin-top: 14px; color: #7a8699; font-weight: 700; font-size: .88rem; }
.choose-btn { pointer-events: none; margin-top: 18px; }
.upload-side { border-left: 1px solid var(--line); padding: 36px 28px; display: grid; align-content: center; gap: 12px; background: linear-gradient(180deg, #fff, #fbfcff); }
.pdf-icon { width: 62px; height: 74px; border: 2px solid #ff7aa8; color: #ef346f; border-radius: 16px; display: grid; place-items: center; font-weight: 950; background: #fff5f9; }
.upload-side p { font-size: .95rem; }

.stats-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.stat-card { padding: 18px; display: flex; align-items: center; gap: 16px; }
.stat-icon { width: 56px; height: 56px; border-radius: 18px; display: grid; place-items: center; font-size: 1.4rem; font-weight: 900; }
.stat-icon.blue { color: var(--blue); background: #eaf1ff; }
.stat-icon.violet { color: var(--primary); background: #f0f1ff; }
.stat-icon.pink { color: var(--pink); background: #ffeaf5; }
.stat-card small, .stat-card em { display: block; color: var(--muted); font-style: normal; }
.stat-card strong { display: block; font-size: 2rem; letter-spacing: -.05em; }
.stat-card em { color: var(--primary); font-weight: 760; font-size: .82rem; }

.section-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.section-head h2 { font-size: 1.35rem; }
.section-head p { margin-top: 5px; font-size: .95rem; }
.section-head.compact { margin-bottom: 12px; }
.recent-card, .quick-actions, .help-card, .laser-card { padding: 22px; }
.mini-pill { background: #eef1ff; color: var(--primary); border-radius: 999px; padding: 8px 12px; font-weight: 900; font-size: .82rem; }
.recent-list { display: grid; gap: 12px; }
.recent-item { display: grid; grid-template-columns: 46px minmax(0,1fr) auto auto; gap: 12px; align-items: center; padding: 14px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.file-icon { width: 42px; height: 50px; border: 1px solid #ff9cbc; border-radius: 12px; color: #ef346f; background: #fff5f9; display: grid; place-items: center; font-size: .72rem; font-weight: 950; }
.recent-meta { min-width: 0; }
.recent-meta strong { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.recent-meta span { color: var(--muted); font-size: .84rem; }
.status-chip { color: #15803d; background: #e9f9ee; padding: 7px 10px; border-radius: 99px; font-weight: 900; font-size: .8rem; }
.recent-actions { display: flex; gap: 8px; }
.empty-state { display: grid; place-items: center; text-align: center; border: 1px dashed #d7ddf2; border-radius: 20px; padding: 34px 22px; background: #fbfcff; }
.empty-illustration { width: 64px; height: 64px; display: grid; place-items: center; border-radius: 22px; background: #f0f1ff; color: var(--primary); font-size: 2rem; font-weight: 900; margin-bottom: 14px; }
.empty-state h3 { margin-bottom: 5px; }

.laser-card { overflow: hidden; min-height: 420px; background: linear-gradient(135deg, #fff, #fff7fb 60%, #f5f7ff); }
.laser-visual { position: relative; height: 190px; margin-bottom: 18px; display: grid; place-items: center; }
.laser-orbit { width: 170px; height: 170px; border: 1px solid rgba(236,72,153,.25); border-radius: 999px; box-shadow: inset 0 0 30px rgba(124,58,237,.08); }
.laser-device { position: absolute; width: 132px; height: 46px; border-radius: 22px; background: linear-gradient(135deg, #fff, #edf1ff); border: 1px solid #e2e8ff; transform: rotate(-23deg); box-shadow: 0 22px 40px rgba(91,94,230,.14); }
.laser-device::before { content:""; position:absolute; right:-26px; top:15px; width:36px; height:16px; border-radius:99px; background:#263659; }
.laser-pulse { position:absolute; width:135px; height:4px; border-radius:99px; transform: rotate(-23deg) translateX(90px); background: linear-gradient(90deg, transparent, #ff4da6, #ffd166, transparent); box-shadow:0 0 20px rgba(236,72,153,.65); }
.laser-card h2 { font-size: 1.48rem; margin-bottom: 10px; }
.learning-badge { margin-top: 18px; padding: 14px; border-radius: 18px; background: #fff; color: var(--pink); font-weight: 950; box-shadow: var(--shadow-sm); }
.quick-actions { display: grid; gap: 10px; }
.action-row { display: grid; grid-template-columns: 46px 1fr auto; align-items: center; gap: 12px; padding: 14px; border-radius: 16px; background: #f4f2ff; color: #362e80; }
.action-row.pink { background: #fff0f6; color: #9d174d; }
.action-row.blue { background: #edf5ff; color: #1d4ed8; }
.action-row span { width: 38px; height: 38px; display:grid; place-items:center; border-radius: 13px; background: rgba(255,255,255,.72); font-weight: 900; }
.action-row strong { display:block; }
.action-row small { color: inherit; opacity: .75; }
.help-card h3 { margin-bottom: 8px; }

.workflow-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 18px; }
.workflow-strip div { display: flex; align-items: center; gap: 10px; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 14px; box-shadow: var(--shadow-sm); }
.workflow-strip b { width: 30px; height: 30px; display:grid; place-items:center; border-radius: 10px; background:#f0f1ff; color:var(--primary); }
.workflow-strip span { font-weight: 800; color: #44506d; font-size: .9rem; }
.sticky-toolbar { position: sticky; top: 14px; z-index: 5; display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 14px 16px; margin-bottom: 18px; }
.sticky-toolbar span { display:block; color: var(--muted); font-size: .88rem; margin-top: 2px; }
.editor-card { padding: 22px; margin-bottom: 18px; }
.editor-head, .quiz-card-head, .result-card-head { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; margin-bottom: 18px; }
.question-chip { display: inline-flex; align-items: center; gap: 7px; padding: 7px 10px; border-radius: 99px; background: #f0f1ff; color: var(--primary); font-weight: 950; font-size: .82rem; }
.type-select-wrap { min-width: 330px; display: grid; gap: 7px; }
.type-select-wrap.solo { max-width: 360px; }
.editor-layout { display: grid; grid-template-columns: minmax(0,1fr) 260px; gap: 16px; }
.editor-main { display: grid; gap: 8px; }
.teacher-tip { border: 1px solid #e4e8f7; border-radius: 18px; padding: 15px; background: linear-gradient(135deg,#f8faff,#fff); }
.teacher-tip span { color: var(--primary); font-weight: 950; }
.teacher-tip p { margin-top: 6px; font-size: .9rem; }
.parser-warning, .warning-line { margin-top: 12px; padding: 13px 14px; border-radius: 14px; background: var(--warning-bg); color: #92400e; border: 1px solid #ffe4a8; font-weight: 760; }
.choice-builder { margin-top: 18px; border: 1px solid var(--line); border-radius: 20px; padding: 18px; background: #fbfcff; }
.choice-builder.is-hidden { display: none; }
.builder-head { display: flex; justify-content: space-between; align-items: start; gap: 16px; margin-bottom: 16px; }
.builder-head h3 { font-size: 1.12rem; }
.builder-head p { font-size: .92rem; margin-top: 4px; }
.mode-badge { padding: 8px 10px; border-radius: 99px; background: #fff; border: 1px solid var(--line); color: var(--primary); font-weight: 900; font-size: .8rem; white-space: nowrap; }
.answer-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
.answer-editor { display: grid; grid-template-columns: 38px minmax(0,1fr) auto; align-items: center; gap: 10px; padding: 10px; border: 1px solid var(--line); border-radius: 16px; background: #fff; transition: border-color .15s ease, background .15s ease; }
.answer-editor.is-correct { border-color: #bdecc8; background: #f2fff6; }
.answer-key { width: 36px; height: 36px; display:grid; place-items:center; border-radius: 12px; background:#f0f1ff; color:var(--primary); font-weight:950; }
.correct-toggle { display: inline-flex; align-items: center; gap: 7px; font-size: .86rem; color: #46516b; white-space: nowrap; cursor: pointer; }
.correct-toggle input { accent-color: var(--success); }
.explanation-editor { margin-top: 18px; display: grid; gap: 8px; }
.explanation-editor p { background: #f6f8ff; border: 1px solid var(--line); padding: 12px; border-radius: 14px; font-size: .9rem; }
.advanced-notes { margin-top: 14px; border-top: 1px solid var(--line); padding-top: 14px; }
.advanced-notes summary { cursor: pointer; font-weight: 850; color: var(--muted); }
.add-question-card, .export-bar { padding: 22px; margin-top: 20px; }
.form, .manual-builder { display: grid; gap: 12px; }
.inline-action { display: inline-flex; margin: 0; }
.export-bar { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.export-bar div { display: flex; flex-wrap: wrap; gap: 8px; }
.savebar.bottom { display:flex; justify-content:center; margin: 24px 0; }

.quiz-layout { display: grid; grid-template-columns: minmax(0,1fr) 360px; gap: 24px; align-items: start; }
.quiz-main { display: grid; gap: 18px; }
.progress-card { padding: 18px; display: grid; gap: 12px; }
.progress-card div:first-child { display:flex; justify-content:space-between; gap:12px; color:#25314f; }
.progress-card span { color: var(--muted); font-size: .9rem; }
.progress-track { height: 10px; background: #eef1ff; border-radius: 99px; overflow: hidden; }
.progress-track span { display:block; height:100%; background: linear-gradient(90deg,#5b7cfa,var(--primary)); border-radius: inherit; }
.quiz-card { padding: 22px; }
.quiz-card-head { align-items:center; }
.quiz-card-head > div { display:flex; align-items:center; flex-wrap:wrap; gap:8px; }
.quiz-type { padding: 7px 10px; border-radius: 99px; font-weight: 900; font-size: .8rem; }
.quiz-type.single { background: #eef1ff; color: var(--primary); }
.quiz-type.multiple { background: #f4edff; color: #7c3aed; }
.quiz-type.text { background: #fff0f6; color: var(--pink); }
.info-dot { width:26px; height:26px; display:grid; place-items:center; border-radius:999px; border:1px solid var(--line); color: var(--muted); font-weight: 900; }
.quiz-question { font-size: 1.18rem; margin: 12px 0 14px; letter-spacing: -.02em; }
.quiz-options { display: grid; gap: 10px; }
.quiz-option { display:flex; align-items:center; gap:12px; border:1px solid var(--line); border-radius: 15px; padding: 13px 14px; background:#fff; cursor:pointer; transition: border-color .15s ease, background .15s ease, transform .15s ease; }
.quiz-option:hover { transform: translateY(-1px); border-color: #cbd4f7; background:#fbfcff; }
.quiz-option input { accent-color: var(--primary); width:18px; height:18px; }
.quiz-option:has(input:checked) { border-color: rgba(91,94,230,.55); background: #f5f6ff; box-shadow: 0 0 0 4px rgba(91,94,230,.08); }
.quiz-side { position: sticky; top: 22px; padding: 22px; display:grid; gap: 16px; }
.score-preview { display:grid; place-items:center; padding: 20px; border-radius: 20px; background: #f6f8ff; }
.score-preview strong { font-size: 3rem; letter-spacing: -.06em; }
.score-preview span { color: var(--muted); font-weight: 800; }
.mini-checklist { display:grid; gap:10px; color:#43506c; font-weight:760; font-size:.92rem; }
.dot { display:inline-block; width:10px; height:10px; border-radius:999px; margin-right:8px; }
.dot.green { background: var(--success); }
.dot.red { background: var(--danger); }
.dot.blue { background: var(--blue); }

.results-shell { display: grid; grid-template-columns: 340px minmax(0,1fr); gap: 24px; align-items: start; }
.results-summary { position: sticky; top: 22px; padding: 22px; display:grid; justify-items:center; gap: 16px; text-align:center; }
.result-circle { width: 154px; height: 154px; border-radius: 999px; display:grid; place-items:center; background: conic-gradient(var(--primary) 0deg, var(--primary) calc(var(--pct, 72) * 3.6deg), #eef1ff 0deg); position: relative; }
.result-circle::after { content:""; position:absolute; inset:10px; border-radius: inherit; background:#fff; }
.result-circle span, .result-circle small { position: relative; z-index:1; display:block; }
.result-circle span { font-size:2rem; font-weight:950; color: var(--primary); }
.result-circle small { color: var(--muted); font-weight: 800; font-size:.78rem; margin-top:38px; position:absolute; }
.score-line strong { font-size: 3rem; letter-spacing: -.06em; }
.score-line span { font-size: 1.7rem; color: var(--muted); font-weight: 800; }
.summary-grid { display:grid; grid-template-columns:1fr; gap:10px; width:100%; }
.summary-grid div { text-align:left; border:1px solid var(--line); background:#fbfcff; border-radius:16px; padding:12px; }
.summary-grid strong { margin-right:6px; }
.summary-grid small { display:block; color:var(--muted); margin-top:3px; }
.results-list { display:grid; gap:18px; }
.result-card { padding: 22px; }
.result-card.result-ok { border-color: #c8efd1; }
.result-card.result-bad { border-color: #ffd5dd; }
.result-card-head h2 { margin-top: 8px; font-size: 1.32rem; }
.status-pill { padding: 8px 10px; border-radius: 99px; font-weight: 950; font-size: .8rem; }
.status-pill.good { color: #15803d; background: #e9f9ee; }
.status-pill.bad { color: #be123c; background: #fff0f3; }
.status-pill.neutral { color: #64748b; background: #f1f5f9; }
.question-text { border-left: 4px solid #dfe5ff; padding: 10px 0 10px 14px; color: #263657; font-weight: 760; line-height: 1.65; white-space: pre-wrap; }
.result-options { display:grid; gap:9px; margin-top:16px; }
.result-option { display:grid; grid-template-columns: 28px minmax(0,1fr) auto; gap:10px; align-items:center; padding:12px; border-radius:14px; border:1px solid var(--line); background:#fff; }
.result-option.correct { color:#166534; background: var(--success-bg); border-color:#bdecc8; }
.result-option.wrong { color:#be123c; background: var(--danger-bg); border-color:#ffd5dd; }
.result-option .mark { width:24px; height:24px; display:grid; place-items:center; border-radius:999px; background: rgba(255,255,255,.68); font-weight:950; }
.result-option em { font-style: normal; font-size: .78rem; font-weight: 950; color: inherit; opacity:.85; }
.written-answer { margin-top:16px; background:#fbfcff; border:1px solid var(--line); border-radius:16px; padding:14px; }
.explanation-box { margin-top: 16px; border: 1px solid #dbe5ff; background: linear-gradient(135deg,#f7faff,#eef4ff); border-radius: 18px; padding: 16px; }
.explanation-box strong { color: var(--primary); }
.explanation-box p { margin-top: 6px; color:#51607c; }

@media (max-width: 1180px) {
  :root { --sidebar: 248px; }
  .dashboard-grid, .quiz-layout, .results-shell { grid-template-columns: 1fr; }
  .dashboard-side, .quiz-side, .results-summary { position: static; }
  .upload-form { grid-template-columns: 1fr; }
  .upload-side { border-left: 0; border-top: 1px solid var(--line); }
}
@media (max-width: 860px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height:auto; padding:18px; }
  .nav { grid-template-columns: repeat(2, 1fr); }
  .doctor-card, .sidebar-footer { display:none; }
  .main { padding: 18px; }
  .topbar { justify-content: space-between; }
  .page-heading { flex-direction: column; }
  .heading-actions { width: 100%; justify-content: flex-start; flex-wrap: wrap; }
  .stats-row, .workflow-strip, .answer-grid { grid-template-columns: 1fr; }
  .recent-item { grid-template-columns: 46px 1fr; }
  .recent-actions, .status-chip { grid-column: 2; justify-self: start; }
  .editor-layout { grid-template-columns: 1fr; }
  .type-select-wrap { min-width: 0; width: 100%; }
  .sticky-toolbar { position: static; flex-direction: column; align-items: stretch; }
  .export-bar { flex-direction: column; align-items: stretch; }
}
@media (max-width: 560px) {
  .nav { grid-template-columns: 1fr; }
  .page-heading h1 { font-size: 2rem; }
  .top-profile strong { display:none; }
  .upload-zone { margin: 16px; padding: 32px 18px; }
  .upload-side { padding: 22px; }
  .answer-editor { grid-template-columns: 38px 1fr; }
  .correct-toggle { grid-column: 2; }
  .result-option { grid-template-columns: 28px 1fr; }
  .result-option em { grid-column: 2; }
}
.ideal-answer { margin-top: 10px; border-color: rgba(34,197,94,.28); background: #f0fdf4; }
.ideal-answer strong { color: #15803d; }


/* Preloaded module catalogue */
.module-library { margin-top: 24px; }
.module-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.module-card { padding: 22px; display: flex; flex-direction: column; gap: 14px; min-height: 250px; }
.module-card-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.module-index { width: 38px; height: 38px; border-radius: 14px; display: inline-flex; align-items: center; justify-content: center; font-weight: 900; color: #fff; background: linear-gradient(135deg, #4f6df5, #8b38e8); box-shadow: 0 12px 28px rgba(79, 109, 245, .22); }
.module-type { padding: 7px 11px; border-radius: 999px; background: #f1edff; color: #6847d9; font-size: 12px; font-weight: 800; }
.module-card h3 { margin: 0; color: #121b3b; font-size: 20px; line-height: 1.2; }
.module-card p { margin: 0; color: #6b7893; line-height: 1.55; flex: 1; }
.module-meta { display: flex; gap: 10px; flex-wrap: wrap; color: #44506a; font-weight: 800; font-size: 13px; }
.module-meta span { background: #f7f9ff; border: 1px solid #e6eaf6; padding: 8px 10px; border-radius: 12px; }
.module-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: auto; }
.catalog-stats { margin-bottom: 10px; }
.after-catalog { grid-template-columns: 1fr 1fr; margin-top: 26px; }
.preview-question-list { display: grid; gap: 14px; }
.preview-question-card { border: 1px solid #e8edf8; border-radius: 20px; padding: 18px; background: #fff; box-shadow: 0 12px 32px rgba(49, 63, 97, .06); }
.preview-question-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.preview-question-card h3 { margin: 0 0 12px; color: #121b3b; font-size: 17px; line-height: 1.45; }
.preview-options { display: grid; gap: 8px; }
.preview-options span { border: 1px solid #e6eaf6; border-radius: 14px; padding: 10px 12px; background: #fbfcff; color: #26334f; }
@media (max-width: 1200px) { .module-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 780px) { .module-grid, .after-catalog { grid-template-columns: 1fr; } .module-actions { grid-template-columns: 1fr; } }


/* Production paywall additions */
.premium-banner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 22px;margin:4px 0 22px;background:linear-gradient(135deg,#fff,#f5f2ff 55%,#fff2f8)}
.premium-banner p{margin-top:6px}.locked-card{position:relative;opacity:.92}.locked-card::after{content:"";position:absolute;inset:0;border-radius:var(--radius);pointer-events:none;background:linear-gradient(135deg,rgba(255,255,255,.04),rgba(103,80,220,.06))}.locked-type{background:#fff0f6!important;color:#be185d!important}.access-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}.access-card{padding:26px}.payment-card{background:linear-gradient(135deg,#fff,#f7f8ff 50%,#fff3f8)}.price-tag{display:flex;align-items:flex-end;gap:10px;margin:18px 0}.price-tag strong{font-size:3rem;line-height:1;color:#101a3d;letter-spacing:-.05em}.price-tag span{font-weight:900;color:var(--primary)}.rip-box{padding:18px;border:1px dashed rgba(91,94,230,.35);border-radius:18px;background:#fff;margin:20px 0}.rip-box small{display:block;color:var(--muted);font-weight:800;margin-bottom:5px}.rip-box strong{font-size:1.35rem;letter-spacing:.03em}.access-form{display:grid;gap:12px;margin-top:18px}.access-form input{min-height:48px;border:1px solid var(--line);border-radius:14px;padding:12px 14px;font-weight:800;font-size:1rem}.soft-note{color:var(--muted);font-size:.92rem;margin-top:14px}@media(max-width:900px){.access-grid{grid-template-columns:1fr}.premium-banner{display:grid}.price-tag strong{font-size:2.4rem}}