:root {
  --bg-0: #0A1320; --bg-1: #0D1B2A; --bg-2: #142436; --bg-3: #1B2F45;
  --ink: #E5EEF7; --ink-2: #B8C7D8; --ink-3: #7E92A8;
  --line: #1F3450; --hair: rgba(255,255,255,0.07);
  --red: #E63946; --red-soft: #FF6F7A;
  --blue: #016EAD; --blue-soft: #5FA8FF;
  --green: #059669; --green-soft: #6EE7B7;
  --amber: #D97706; --amber-soft: #FBBF24;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg-0); color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif; font-size: 14.5px; line-height: 1.55; }
button, input { font-family: inherit; }
h1, h2, h3, h4, .lesson-h { font-family: "Big Shoulders Display", "Inter", sans-serif; }
a { color: inherit; }

/* ---------- Boot screen ---------- */
.boot { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 18px; }
.boot-cube svg { width: 56px; height: 56px; animation: pulse 1.4s ease-in-out infinite; }
.boot-text { color: var(--ink-3); font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase; font-weight: 700; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.55; } }

/* ---------- Login ---------- */
.login-shell { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.login-card { background: var(--bg-1); border: 1px solid var(--line); border-radius: 16px; padding: 36px 36px 28px; max-width: 420px; width: 100%; position: relative; overflow: hidden; }
.login-card::before { content: ""; position: absolute; top: -40px; right: -60px; width: 220px; height: 40px; background: var(--red); transform: rotate(45deg); opacity: 0.3; }
.login-card::after  { content: ""; position: absolute; bottom: -40px; left: -60px; width: 220px; height: 40px; background: var(--blue); transform: rotate(45deg); opacity: 0.3; }
.login-brand { display: flex; gap: 14px; align-items: center; margin-bottom: 18px; }
.login-brand svg { width: 44px; height: 44px; flex-shrink: 0; }
.login-brand h1 { margin: 2px 0 0; font-size: 22px; letter-spacing: -0.01em; }
.login-lede { color: var(--ink-2); margin: 0 0 22px; font-size: 14px; }
#login-form label { display: block; margin-bottom: 14px; }
#login-form label span { display: block; font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 6px; }
#login-form input { width: 100%; background: var(--bg-2); border: 1px solid var(--line); color: var(--ink); padding: 11px 13px; border-radius: 8px; font-size: 14.5px; }
#login-form input:focus { outline: none; border-color: var(--red); }
.form-error { color: var(--red-soft); font-size: 13px; min-height: 18px; margin: 4px 0 10px; }
.btn-block { width: 100%; }
.login-help { color: var(--ink-3); font-size: 12.5px; margin: 18px 0 0; text-align: center; }

/* ---------- Shell ---------- */
.app { display: flex; min-height: 100vh; }
.sidebar { width: 240px; flex-shrink: 0; background: var(--bg-1); border-right: 1px solid var(--line);
  padding: 18px 12px; display: flex; flex-direction: column; gap: 4px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 10px 14px; border-bottom: 1px solid var(--line); margin-bottom: 8px; }
.brand svg { width: 30px; height: 30px; flex-shrink: 0; }
.brand .name { font-size: 13px; font-weight: 700; letter-spacing: 0.04em; line-height: 1.25; }
.brand .name small { display: block; font-size: 9.5px; color: var(--ink-3); letter-spacing: 0.18em; text-transform: uppercase; font-weight: 700; }
.nav-section { padding: 14px 12px 6px; font-size: 9.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.18em; color: var(--ink-3); }
.nav-link { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 7px;
  color: var(--ink-2); cursor: pointer; transition: background .15s, color .15s; font-size: 13.5px; }
.nav-link:hover { background: var(--bg-2); color: var(--ink); }
.nav-link.active { background: var(--red); color: white; }

.user-card { margin-top: auto; padding: 12px; border-top: 1px solid var(--line); display: flex; align-items: center; gap: 10px; }
.avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--red); color: white;
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 12px; flex-shrink: 0; }
.avatar.blue { background: var(--blue); } .avatar.amber { background: var(--amber); } .avatar.green { background: var(--green); }
.user-info { font-size: 12px; line-height: 1.3; min-width: 0; flex: 1; }
.user-info strong { display: block; color: var(--ink); }
.user-info span { color: var(--ink-3); font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase; }
.signout { color: var(--ink-3); font-size: 11px; cursor: pointer; background: none; border: none; padding: 0; }
.signout:hover { color: var(--red-soft); }

.main { flex: 1; padding: 24px 32px 64px; max-width: 1200px; }
.topbar { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 24px; gap: 12px; flex-wrap: wrap; }
.topbar h1 { font-size: 30px; margin: 4px 0 0; letter-spacing: -0.01em; font-weight: 700; }
.topbar h1 small { font-size: 15px; color: var(--ink-3); font-weight: 500; letter-spacing: 0; margin-left: 10px; }
.eyebrow { font-size: 11px; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--red-soft);
  display: inline-flex; align-items: center; gap: 8px; }
.eyebrow::before { content: ""; width: 16px; height: 2px; background: var(--red); }
.eyebrow.blue { color: var(--blue-soft); }
.eyebrow.blue::before { background: var(--blue); }
.eyebrow.green { color: var(--green-soft); }
.eyebrow.green::before { background: var(--green); }

/* ---------- Buttons / pills ---------- */
.btn { padding: 10px 16px; border-radius: 7px; font-size: 13.5px; font-weight: 600;
  border: 1px solid var(--line); background: var(--bg-2); color: var(--ink); cursor: pointer; transition: background .15s; }
.btn:hover:not(:disabled) { background: var(--bg-3); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-red { background: var(--red); color: white; border-color: var(--red); }
.btn-red:hover:not(:disabled) { background: #c92b38; }
.btn-blue { background: var(--blue); color: white; border-color: var(--blue); }
.btn-blue:hover:not(:disabled) { background: #015a8d; }
.pill { display: inline-flex; padding: 3px 9px; border-radius: 999px; font-size: 10.5px; font-weight: 700;
  letter-spacing: 0.08em; border: 1px solid var(--line); background: var(--bg-2); color: var(--ink-2); text-transform: uppercase; }
.pill-red { background: rgba(230,57,70,0.16); color: var(--red-soft); border-color: rgba(230,57,70,0.32); }
.pill-blue { background: rgba(1,110,173,0.20); color: var(--blue-soft); border-color: rgba(1,110,173,0.40); }
.pill-green { background: rgba(5,150,105,0.20); color: var(--green-soft); border-color: rgba(5,150,105,0.40); }
.pill-amber { background: rgba(217,119,6,0.18); color: var(--amber-soft); border-color: rgba(217,119,6,0.36); }

/* ---------- Cards / grid ---------- */
.card { background: var(--bg-1); border: 1px solid var(--line); border-radius: 11px; padding: 18px 20px; }
.card-red { background: linear-gradient(140deg, rgba(230,57,70,0.16), rgba(230,57,70,0.03)); border-color: rgba(230,57,70,0.4); }
.card-blue { background: linear-gradient(140deg, rgba(1,110,173,0.16), rgba(1,110,173,0.03)); border-color: rgba(1,110,173,0.4); }
.card-green { background: linear-gradient(140deg, rgba(5,150,105,0.16), rgba(5,150,105,0.03)); border-color: rgba(5,150,105,0.4); }
.stat-label { font-size: 11px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }
.stat-value { font-size: 30px; font-weight: 700; margin: 4px 0 2px; }
.stat-value small { font-size: 14px; color: var(--ink-3); font-weight: 500; margin-left: 4px; }
.stat-delta { font-size: 12.5px; color: var(--green-soft); }
.grid { display: grid; gap: 14px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.section-title { margin: 28px 0 12px; font-size: 13px; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-3); }

/* ---------- Track banner ---------- */
.track-banner { position: relative; padding: 28px 28px 24px; border-radius: 14px; margin-bottom: 24px; overflow: hidden; border: 1px solid var(--line); }
.track-banner.staff { background: linear-gradient(135deg, rgba(1,110,173,0.22), rgba(1,110,173,0.04)); border-color: rgba(1,110,173,0.45); }
.track-banner.clinician { background: linear-gradient(135deg, rgba(230,57,70,0.22), rgba(230,57,70,0.04)); border-color: rgba(230,57,70,0.45); }
.track-banner.trainer { background: linear-gradient(135deg, rgba(5,150,105,0.22), rgba(5,150,105,0.04)); border-color: rgba(5,150,105,0.45); }
.track-banner .ribbon-tr { position: absolute; top: -40px; right: -60px; width: 200px; height: 40px; background: var(--red); transform: rotate(45deg); opacity: 0.35; }
.track-banner .ribbon-bl { position: absolute; bottom: -40px; left: -60px; width: 200px; height: 40px; background: var(--blue); transform: rotate(45deg); opacity: 0.35; }
.track-banner h2 { margin: 6px 0 8px; font-size: 28px; letter-spacing: -0.01em; font-weight: 700; }
.track-banner p { margin: 0; color: var(--ink-2); max-width: 720px; font-size: 14.5px; }
.track-meta { margin-top: 16px; display: flex; gap: 24px; flex-wrap: wrap; }
.track-meta div { font-size: 12px; color: var(--ink-3); letter-spacing: 0.08em; text-transform: uppercase; }
.track-meta div strong { color: var(--ink); font-size: 18px; font-weight: 700; letter-spacing: 0; text-transform: none; display: block; margin-top: 2px; }

/* ---------- Module / lesson cards ---------- */
.module-card { background: var(--bg-1); border: 1px solid var(--line); border-radius: 11px; padding: 0; margin-bottom: 14px; overflow: hidden; }
.module-head { display: flex; align-items: center; gap: 16px; padding: 16px 20px; border-bottom: 1px solid var(--line); }
.module-num { font-family: "Big Shoulders Display", "Inter", sans-serif; font-size: 44px; font-weight: 900; line-height: 1; min-width: 56px; }
.module-num.red { color: var(--red); } .module-num.blue { color: var(--blue-soft); } .module-num.green { color: var(--green-soft); }
.module-info { flex: 1; }
.module-info h3 { margin: 0 0 4px; font-size: 17px; font-weight: 700; }
.module-info p { margin: 0; color: var(--ink-3); font-size: 13px; }
.module-progress { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; min-width: 120px; }
.module-progress .progress-text { font-size: 11px; color: var(--ink-3); letter-spacing: 0.08em; text-transform: uppercase; font-weight: 700; }
.progress-bar { width: 100%; height: 4px; background: var(--bg-3); border-radius: 999px; overflow: hidden; }
.progress-bar > div { height: 100%; background: var(--green); transition: width .3s; }
.progress-bar.red > div { background: var(--red); }
.progress-bar.blue > div { background: var(--blue); }
.progress-bar.green > div { background: var(--green); }

.lesson-list { padding: 6px 0; }
.lesson-row { display: flex; align-items: center; gap: 14px; padding: 12px 20px 12px 88px; border-top: 1px solid var(--hair); cursor: pointer; transition: background .15s; }
.lesson-row:first-child { border-top: none; }
.lesson-row:hover { background: var(--bg-2); }
.lesson-check { width: 22px; height: 22px; border-radius: 50%; border: 1.5px solid var(--line); display: flex; align-items: center; justify-content: center; flex-shrink: 0; background: var(--bg-2); }
.lesson-check.done { background: var(--green); border-color: var(--green); }
.lesson-check.done svg { width: 12px; height: 12px; }
.lesson-title { flex: 1; font-size: 14px; }
.lesson-title small { display: block; color: var(--ink-3); font-size: 11.5px; margin-top: 2px; letter-spacing: 0.04em; }
.lesson-meta { font-size: 11px; color: var(--ink-3); letter-spacing: 0.08em; text-transform: uppercase; font-weight: 600; }

/* ---------- Player ---------- */
.player-wrap { display: grid; grid-template-columns: 1fr 320px; gap: 24px; }
.player-main { min-width: 0; }
.video-frame { aspect-ratio: 16/9; background: #000; border-radius: 12px; border: 1px solid var(--line); overflow: hidden; position: relative; display: flex; align-items: center; justify-content: center; }
.video-frame iframe { width: 100%; height: 100%; border: 0; display: block; }
.video-frame .placeholder { color: var(--ink-3); text-align: center; padding: 20px; }
.video-frame .placeholder svg { width: 56px; height: 56px; margin-bottom: 12px; opacity: 0.5; }
.video-frame .placeholder div { font-size: 13px; letter-spacing: 0.1em; text-transform: uppercase; font-weight: 700; }
.video-frame .placeholder div small { display: block; color: var(--ink-3); font-size: 11px; letter-spacing: 0.04em; text-transform: none; margin-top: 6px; font-weight: 500; max-width: 320px; }

.player-controls { display: flex; justify-content: space-between; align-items: center; margin-top: 18px; gap: 12px; flex-wrap: wrap; }
.lesson-h { margin: 16px 0 4px; font-size: 22px; font-weight: 700; letter-spacing: -0.01em; }
.lesson-desc { color: var(--ink-2); margin: 0 0 18px; max-width: 720px; }

.knowledge-check { background: var(--bg-1); border: 1px solid var(--line); border-radius: 12px; padding: 22px 24px; border-left: 4px solid var(--blue); margin-top: 24px; }
.knowledge-check h3 { margin: 0 0 6px; font-size: 16px; }
.knowledge-check p.q { color: var(--ink-2); margin: 14px 0 12px; font-size: 14.5px; }
.kc-option { display: flex; align-items: center; gap: 10px; padding: 11px 14px; border: 1px solid var(--line); border-radius: 8px; margin-bottom: 8px; cursor: pointer; transition: all .15s; background: var(--bg-2); }
.kc-option:hover { background: var(--bg-3); border-color: var(--blue); }
.kc-option.correct { background: rgba(5,150,105,0.18); border-color: var(--green); }
.kc-option.incorrect { background: rgba(230,57,70,0.18); border-color: var(--red); }
.kc-option .letter { width: 24px; height: 24px; border-radius: 50%; background: var(--bg-3); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 12px; flex-shrink: 0; }
.kc-option.correct .letter { background: var(--green); color: white; }
.kc-option.incorrect .letter { background: var(--red); color: white; }

.sidebar-curriculum { background: var(--bg-1); border: 1px solid var(--line); border-radius: 12px; padding: 16px 0; height: fit-content; position: sticky; top: 20px; }
.sc-head { padding: 0 18px 12px; border-bottom: 1px solid var(--line); }
.sc-head h4 { margin: 0; font-size: 14px; font-weight: 700; }
.sc-head small { color: var(--ink-3); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }
.sc-module { padding: 12px 18px 6px; font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }
.sc-lesson { padding: 8px 18px; display: flex; align-items: center; gap: 10px; font-size: 13px; cursor: pointer; border-left: 3px solid transparent; }
.sc-lesson:hover { background: var(--bg-2); }
.sc-lesson.active { background: var(--bg-2); border-left-color: var(--red); }
.sc-lesson .mini-check { width: 16px; height: 16px; border-radius: 50%; background: var(--bg-3); border: 1.5px solid var(--line); flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.sc-lesson .mini-check.done { background: var(--green); border-color: var(--green); }
.sc-lesson .mini-check.done::after { content: "✓"; font-size: 10px; color: white; font-weight: 900; }
.sc-lesson span { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sc-lesson small { color: var(--ink-3); font-size: 10.5px; }

/* ---------- Tables / admin ---------- */
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 12px; text-align: left; font-size: 13px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--ink-3); font-weight: 700; font-size: 11px; letter-spacing: 0.10em; text-transform: uppercase; }
.person-cell { display: flex; align-items: center; gap: 10px; }
.person-cell strong { display: block; font-size: 13.5px; }
.person-cell small { color: var(--ink-3); font-size: 11px; letter-spacing: 0.04em; }
.track-pill { font-size: 10.5px; padding: 2px 8px; border-radius: 4px; font-weight: 700; letter-spacing: 0.04em; }
.track-pill.staff { background: rgba(1,110,173,0.18); color: var(--blue-soft); }
.track-pill.clinician { background: rgba(230,57,70,0.18); color: var(--red-soft); }
.track-pill.trainer { background: rgba(5,150,105,0.18); color: var(--green-soft); }
.track-pill.admin { background: rgba(217,119,6,0.18); color: var(--amber-soft); }
.progress-cell { display: flex; align-items: center; gap: 10px; min-width: 160px; }
.progress-cell .progress-bar { flex: 1; }
.progress-cell .pct { font-weight: 700; font-size: 13px; min-width: 36px; text-align: right; }

/* ---------- Policies ---------- */
.doc-card { display: flex; align-items: center; gap: 16px; padding: 18px 20px; border: 1px solid var(--line); border-radius: 11px; background: var(--bg-1); cursor: pointer; transition: background .15s; margin-bottom: 12px; }
.doc-card:hover { background: var(--bg-2); }
.doc-icon { width: 44px; height: 44px; border-radius: 8px; background: var(--bg-3); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.doc-icon svg { width: 22px; height: 22px; color: var(--red-soft); }
.doc-info { flex: 1; }
.doc-info strong { display: block; font-size: 15px; }
.doc-info small { color: var(--ink-3); font-size: 12px; }

/* ---------- Modal ---------- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.65); display: flex; align-items: center; justify-content: center; z-index: 100; padding: 20px; }
.modal { background: var(--bg-1); border: 1px solid var(--line); border-radius: 14px; padding: 28px 28px 24px; max-width: 440px; width: 100%; }
.modal h2 { margin: 0 0 4px; font-size: 20px; }
.modal p { color: var(--ink-2); margin: 6px 0 18px; font-size: 14px; }
.modal label { display: block; margin-bottom: 12px; }
.modal label span { display: block; font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 6px; }
.modal input, .modal select { width: 100%; background: var(--bg-2); border: 1px solid var(--line); color: var(--ink); padding: 10px 12px; border-radius: 7px; font-size: 14px; }
.modal input:focus, .modal select:focus { outline: none; border-color: var(--red); }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 16px; }
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--bg-1); border: 1px solid var(--green); color: var(--ink); padding: 12px 18px; border-radius: 8px; font-size: 13.5px; z-index: 200; }
.toast.error { border-color: var(--red); }

/* ---------- Utility ---------- */
.row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.back-link { display: inline-flex; align-items: center; gap: 6px; color: var(--ink-3); font-size: 12.5px; letter-spacing: 0.04em; cursor: pointer; margin-bottom: 6px; text-decoration: none; }
.back-link:hover { color: var(--ink); }
.back-link::before { content: "←"; }
.hidden { display: none !important; }

@media (max-width: 900px) {
  .sidebar { width: 200px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .player-wrap { grid-template-columns: 1fr; }
  .sidebar-curriculum { position: static; }
}
@media (max-width: 640px) {
  .app { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: static; flex-direction: row; flex-wrap: wrap; padding: 12px; }
  .brand { width: 100%; border-bottom: none; padding-bottom: 8px; margin-bottom: 0; }
  .nav-section { width: 100%; padding: 6px 8px; }
  .nav-link { flex: 1; min-width: 130px; }
  .user-card { width: 100%; margin-top: 8px; }
  .main { padding: 18px; }
}

/* ---------- Document viewer ---------- */
.doc-viewer-backdrop { padding: 0; }
.doc-viewer-modal {
  max-width: 1100px; width: 95vw; height: 92vh; max-height: 92vh;
  padding: 0; display: flex; flex-direction: column;
}
.doc-viewer-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 22px; border-bottom: 1px solid var(--line); gap: 12px;
}
.doc-viewer-head h2 { font-size: 18px; }
.doc-viewer-frame { flex: 1; background: var(--bg-0); }
.doc-viewer-frame iframe { width: 100%; height: 100%; border: 0; background: var(--bg-0); }
.doc-viewer-foot {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px; border-top: 1px solid var(--line); gap: 12px; flex-wrap: wrap;
}

/* ===== Academy loop: per-question knowledge checks, PDF link, content editor ===== */
.kc-question { padding: 16px 0 4px; border-top: 1px dashed var(--line); }
.kc-question:first-of-type { border-top: none; padding-top: 6px; }
.kc-qnum { color: var(--blue-soft); font-weight: 700; margin-right: 4px; }
.kc-explain {
  margin-top: 8px; padding: 12px 14px; border-radius: 8px;
  background: rgba(5,150,105,0.10); border: 1px solid rgba(5,150,105,0.35);
  color: var(--ink-2); font-size: 13px; line-height: 1.5;
}
.kc-explain::before {
  content: 'Why'; display: block; font-size: 10px; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--green-soft); margin-bottom: 4px;
}
.lesson-pdf { display: inline-flex; align-items: center; margin: 4px 0 2px; }

/* Wide editor modal */
.modal.modal-wide { max-width: 860px; max-height: 88vh; overflow: auto; }
.modal.modal-wide textarea {
  width: 100%; min-height: 220px; background: var(--bg-2); border: 1px solid var(--line);
  color: var(--ink); padding: 12px; border-radius: 8px; font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 12.5px; line-height: 1.5; resize: vertical;
}
.ed-module { border: 1px solid var(--line); border-radius: 10px; margin-bottom: 14px; background: var(--bg-1); overflow: hidden; }
.ed-module > summary {
  cursor: pointer; padding: 12px 16px; font-weight: 700; font-size: 14px;
  background: var(--bg-2); list-style: none; display: flex; align-items: center; gap: 10px;
}
.ed-module > summary::-webkit-details-marker { display: none; }
.ed-module > summary .mnum {
  font-family: inherit; font-weight: 800; color: var(--red-soft);
  background: var(--bg-3); border-radius: 6px; padding: 2px 8px; font-size: 12px;
}
.ed-lesson { border-top: 1px solid var(--line); padding: 14px 16px; }
.ed-lesson h4 { margin: 0 0 10px; font-size: 13.5px; color: var(--ink); }
.ed-field { margin-bottom: 10px; }
.ed-field > label { display: block; font-size: 10.5px; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink-3); margin-bottom: 4px; }
.ed-field input, .ed-field textarea, .ed-field select {
  width: 100%; background: var(--bg-2); border: 1px solid var(--line); color: var(--ink);
  padding: 9px 11px; border-radius: 7px; font-size: 13.5px; font-family: inherit;
}
.ed-field textarea { min-height: 56px; resize: vertical; line-height: 1.45; }
.ed-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.ed-quiz { border-left: 3px solid var(--blue); background: var(--bg-2); border-radius: 0 8px 8px 0;
  padding: 12px 14px; margin: 10px 0; }
.ed-quiz .qh { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.ed-quiz .qh strong { font-size: 12px; color: var(--blue-soft); letter-spacing: 0.08em; text-transform: uppercase; }
.ed-opt { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.ed-opt input[type="radio"] { width: auto; flex-shrink: 0; }
.ed-opt input[type="text"] { flex: 1; }
.ed-mini { padding: 5px 10px; font-size: 12px; }
.ed-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; }
.ed-help { color: var(--ink-3); font-size: 12.5px; line-height: 1.5; margin: 0 0 16px; }
.ed-tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.ed-tab { padding: 8px 14px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg-2);
  cursor: pointer; font-size: 13px; font-weight: 600; }
.ed-tab.active { background: var(--red); border-color: var(--red); color: #fff; }

/* Inline lesson PDF viewer */
.lesson-pdf-wrap { margin: 6px 0 2px; }
.pdf-embed { margin-top: 12px; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--bg-0); }
.pdf-embed iframe { width: 100%; height: 80vh; min-height: 540px; border: 0; display: block; }

/* PDF viewer: toolbar + fullscreen */
.pdf-embed { flex-direction: column; }
.pdf-bar { display: flex; justify-content: flex-end; gap: 8px; padding: 8px; background: var(--bg-2); border-bottom: 1px solid var(--line); }
.pdf-embed.fullscreen { position: fixed; inset: 0; z-index: 200; margin: 0; border-radius: 0; }
.pdf-embed.fullscreen iframe { height: auto; flex: 1; min-height: 0; }

/* Video visibility controls (global toggle + per-lesson checkbox) */
.btn-videos-off { background: var(--red); color: white; border-color: var(--red); }
.btn-videos-off:hover:not(:disabled) { background: #c92b38; }
.ed-videooff { margin-top: 4px; }
.ed-check { display: flex; align-items: center; gap: 8px; cursor: pointer; font-size: 13px; text-transform: none; letter-spacing: 0; }
.ed-check input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--red); cursor: pointer; }