:root {
  --red: #CC0003;
  --red-dark: #A80002;
  --ink: #0F1318;
  --surface: #1A1F27;
  --surface-2: #222A33;
  --line: #2C3542;
  --text: #E7ECF2;
  --muted: #9AA7B4;
  --green: #27C281;
  --amber: #F1A33A;
  --radius: 14px;
  --radius-sm: 9px;
  --maxw: 1120px;
  --shadow: 0 18px 50px -20px rgba(0,0,0,.7);
  --brand: #CC0003;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --accent: #CC0003;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(204,0,3,.10), transparent 60%),
    var(--ink);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: inherit; text-decoration: none; }
.mono { font-family: 'JetBrains Mono', ui-monospace, monospace; }

/* ---------- top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 14px clamp(16px, 4vw, 40px);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(26,31,39,.9), rgba(15,19,24,.9));
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 40;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  display: grid; place-items: center;
  width: 38px; height: 38px;
  border-radius: 10px;
  background: linear-gradient(140deg, var(--red), var(--red-dark));
  font-weight: 800; letter-spacing: .5px;
  box-shadow: 0 6px 18px -6px rgba(204,0,3,.7);
}
.brand-text { font-weight: 700; font-size: 1.05rem; }
.brand-text em { font-style: normal; color: var(--muted); font-weight: 500; }

.topnav { display: flex; gap: 22px; margin-left: 8px; }
.topnav a { color: var(--muted); font-weight: 500; font-size: .94rem; padding: 6px 0; border-bottom: 2px solid transparent; transition: color .15s, border-color .15s; }
.topnav a:hover { color: var(--text); border-color: var(--red); }

.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.whoami { color: var(--muted); font-size: .9rem; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 9px 16px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: .92rem; cursor: pointer;
  border: 1px solid transparent; transition: transform .08s, background .15s, border-color .15s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: linear-gradient(140deg, var(--red), var(--red-dark)); color: #fff; }
.btn-primary:hover { filter: brightness(1.07); }
.btn-ghost { border-color: var(--line); color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--muted); }
.btn-block { width: 100%; padding: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- shell / layout ---------- */
.shell { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: clamp(24px, 5vw, 48px) clamp(16px, 4vw, 40px); flex: 1; }
.shell-full { max-width: 520px; }

.flash {
  background: var(--surface-2); border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 22px; font-size: .92rem;
}

/* ---------- hero ---------- */
.hero { margin-bottom: 44px; }
.hero .eyebrow { color: var(--red); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; font-size: .74rem; }
.hero h1 { font-size: clamp(1.9rem, 4vw, 2.8rem); line-height: 1.05; margin: 10px 0 14px; font-weight: 800; }
.hero p { color: var(--muted); max-width: 620px; font-size: 1.05rem; line-height: 1.6; }

/* ---------- track cards ---------- */
.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }

.card {
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; position: relative; overflow: hidden;
  transition: transform .18s, border-color .18s;
}
.card:hover { transform: translateY(-3px); border-color: #3a4553; }
.card::before {
  content: ''; position: absolute; inset: 0 auto auto 0; width: 100%; height: 4px;
  background: var(--accent, var(--red));
}
.card .kicker { font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); font-weight: 700; }
.card h3 { margin: 10px 0 8px; font-size: 1.3rem; }
.card p { color: var(--muted); font-size: .94rem; line-height: 1.55; margin: 0 0 18px; }
.card .meta { display: flex; gap: 16px; color: var(--muted); font-size: .82rem; margin-bottom: 18px; }
.card .meta b { color: var(--text); font-weight: 600; }

.progressbar { height: 6px; border-radius: 6px; background: var(--line); overflow: hidden; margin-bottom: 14px; }
.progressbar > span { display: block; height: 100%; background: var(--green); }

/* ---------- module list ---------- */
.modlist { display: flex; flex-direction: column; gap: 10px; margin-top: 26px; }
.modrow {
  display: flex; align-items: center; gap: 16px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 16px 18px;
  transition: border-color .15s;
}
.modrow:hover { border-color: #3a4553; }
.modrow .idx { font-family: 'JetBrains Mono', monospace; color: var(--muted); font-weight: 700; min-width: 34px; }
.modrow .body { flex: 1; }
.modrow .body h4 { margin: 0 0 3px; font-size: 1.02rem; }
.modrow .body p { margin: 0; color: var(--muted); font-size: .86rem; }
.pill { font-size: .72rem; font-weight: 700; padding: 4px 9px; border-radius: 999px; letter-spacing: .03em; }
.pill.done { background: rgba(39,194,129,.15); color: var(--green); }
.pill.todo { background: rgba(154,167,180,.12); color: var(--muted); }
.pill.opt  { background: rgba(241,163,58,.14); color: var(--amber); }

/* ---------- auth pages ---------- */
.auth-card {
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px; box-shadow: var(--shadow);
}
.auth-card h1 { margin: 0 0 6px; font-size: 1.6rem; }
.auth-card .sub { color: var(--muted); margin: 0 0 24px; font-size: .94rem; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: .84rem; color: var(--muted); margin-bottom: 6px; font-weight: 500; }
.field input {
  width: 100%; padding: 11px 13px; border-radius: var(--radius-sm);
  background: var(--ink); border: 1px solid var(--line); color: var(--text);
  font-size: .95rem; font-family: inherit;
}
.field input:focus { outline: none; border-color: var(--red); box-shadow: 0 0 0 3px rgba(204,0,3,.15); }
.error { background: rgba(204,0,3,.12); border: 1px solid rgba(204,0,3,.35); color: #ffb3b4; padding: 11px 14px; border-radius: var(--radius-sm); font-size: .88rem; margin-bottom: 18px; }
.success { background: rgba(39,194,129,.12); border: 1px solid rgba(39,194,129,.35); color: #8ef0c2; padding: 11px 14px; border-radius: var(--radius-sm); font-size: .88rem; margin-bottom: 18px; }
.authswitch { text-align: center; margin-top: 20px; color: var(--muted); font-size: .88rem; }
.authswitch a { color: var(--text); font-weight: 600; }
.hint { color: var(--muted); font-size: .78rem; margin-top: 5px; }

/* ---------- player + quiz ---------- */
.player { background: #000; border: 1px solid var(--line); border-radius: var(--radius); aspect-ratio: 16/9; display: grid; place-items: center; color: var(--muted); overflow: hidden; }
.player video { width: 100%; height: 100%; }
.player .placeholder { text-align: center; padding: 30px; }

.quiz { margin-top: 30px; }
.qcard { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 20px 22px; margin-bottom: 14px; }
.qcard h4 { margin: 0 0 14px; font-size: 1.02rem; line-height: 1.4; }
.opt { display: flex; align-items: center; gap: 11px; padding: 11px 13px; border: 1px solid var(--line); border-radius: var(--radius-sm); margin-bottom: 9px; cursor: pointer; transition: border-color .12s, background .12s; }
.opt:hover { border-color: #3a4553; }
.opt input { accent-color: var(--red); width: 17px; height: 17px; }
.opt.correct { border-color: var(--green); background: rgba(39,194,129,.08); }
.opt.wrong { border-color: var(--red); background: rgba(204,0,3,.08); }

.scorebox { text-align: center; padding: 26px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); margin-bottom: 24px; }
.scorebox .num { font-size: 3rem; font-weight: 800; font-family: 'JetBrains Mono', monospace; }
.scorebox.pass .num { color: var(--green); }
.scorebox.fail .num { color: var(--red); }

/* ---------- certificate ---------- */
.cert {
  background: linear-gradient(160deg, #12161c, #1c222b);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 46px; text-align: center; position: relative;
}
.cert::before { content: ''; position: absolute; inset: 14px; border: 1px solid rgba(204,0,3,.35); border-radius: 8px; pointer-events: none; }
.cert .seal { color: var(--red); font-weight: 800; letter-spacing: .2em; text-transform: uppercase; font-size: .8rem; }
.cert h2 { font-size: 2rem; margin: 14px 0 6px; }
.cert .name { font-size: 1.5rem; font-weight: 700; margin: 22px 0 6px; }
.cert .serial { color: var(--muted); font-family: 'JetBrains Mono', monospace; font-size: .82rem; margin-top: 22px; }

/* ---------- footer ---------- */
.sitefoot { border-top: 1px solid var(--line); padding: 20px clamp(16px,4vw,40px); display: flex; justify-content: space-between; color: var(--muted); font-size: .82rem; }

.section-head { display: flex; align-items: baseline; justify-content: space-between; margin: 34px 0 6px; }
.section-head h2 { font-size: 1.4rem; margin: 0; }
.section-head a { color: var(--muted); font-size: .88rem; }

@media (max-width: 640px) {
  .topnav { display: none; }
  .sitefoot { flex-direction: column; gap: 6px; }
}

/* ============================================================= */
/* LMS enforcement + progress UI                                 */
/* ============================================================= */

/* Module header */
.module-head { display:flex; justify-content:space-between; align-items:flex-start; gap:16px; margin-bottom:22px; }
.module-head .eyebrow { color:var(--brand); font-size:.72rem; font-weight:700; letter-spacing:.08em; text-transform:uppercase; }
.module-flags { flex-shrink:0; }
.badge { display:inline-block; padding:5px 12px; border-radius:999px; font-size:.75rem; font-weight:600; }
.badge-done { background:rgba(34,197,94,.15); color:#4ade80; }
.badge-watch { background:rgba(59,130,246,.15); color:#60a5fa; }
.badge-progress { background:var(--surface-2); color:var(--muted); }

/* Enforced player */
.vcontrols { display:flex; align-items:center; gap:14px; margin-top:12px; }
.vbar { position:relative; flex:1; height:8px; background:var(--surface-2); border-radius:999px; overflow:hidden; }
.vbar-watched { position:absolute; left:0; top:0; height:100%; background:rgba(96,165,250,.35); }
.vbar-fill { position:absolute; left:0; top:0; height:100%; background:var(--brand); }
.vtime { font-family:var(--mono,monospace); font-size:.8rem; color:var(--muted); white-space:nowrap; }
.seek-note { margin-top:10px; }
#lesson-video { width:100%; border-radius:12px 12px 0 0; background:#000; display:block; }

/* Locked module panel */
.locked-panel, .quiz-locked { text-align:center; padding:40px 24px; background:var(--surface); border:1px solid var(--line); border-radius:16px; }
.locked-panel h1 { font-size:1.4rem; margin:12px 0 8px; }
.locked-panel p, .quiz-locked p { color:var(--muted); max-width:520px; margin:0 auto 18px; }
.lock-icon { font-size:2rem; }
.quiz-locked { padding:28px 20px; }
.unlock-banner { background:rgba(34,197,94,.12); color:#4ade80; padding:10px 14px; border-radius:10px; margin-bottom:16px; font-size:.9rem; font-weight:600; }

/* Progress bars */
.progressbar { height:8px; background:var(--surface-2); border-radius:999px; overflow:hidden; margin:10px 0; }
.progressbar span { display:block; height:100%; background:var(--accent, var(--brand)); border-radius:999px; }
.progressbar.big { height:12px; }
.track-progress { margin-top:18px; }
.mini-bar { height:6px; width:120px; background:var(--surface-2); border-radius:999px; overflow:hidden; margin:6px 0; }
.mini-bar.inline { display:inline-block; vertical-align:middle; margin:0 8px 0 0; }
.mini-bar span { display:block; height:100%; background:var(--brand); }

/* Module list lock/progress states */
.modrow.is-locked { opacity:.55; cursor:not-allowed; }
.modrow.is-locked:hover { transform:none; }
.pill.lock { background:var(--surface-2); color:var(--muted); }
.opttag { font-size:.68rem; font-weight:600; color:var(--muted); background:var(--surface-2); padding:2px 8px; border-radius:999px; margin-left:6px; vertical-align:middle; }

/* Quiz attempts history */
.attempts { margin-top:18px; font-size:.85rem; }
.attempts summary { cursor:pointer; color:var(--muted); }
.attempts ul { list-style:none; padding:12px 0 0; margin:0; display:flex; flex-direction:column; gap:6px; }
.attempts li { color:var(--muted); }
.attempts .ok { color:#4ade80; font-weight:600; }
.attempts .no { color:#f87171; font-weight:600; }
.ok { color:#4ade80; font-weight:600; }

/* Admin tables */
.admin-table { width:100%; border-collapse:collapse; font-size:.88rem; margin-bottom:8px; }
.admin-table thead th { text-align:left; color:var(--muted); font-weight:600; padding:10px; border-bottom:1px solid var(--line); font-size:.78rem; text-transform:uppercase; letter-spacing:.04em; }
.admin-table tbody td { padding:12px 10px; border-bottom:1px solid var(--line); vertical-align:middle; }
.stat-grid .card h3 { font-size:2rem; margin:4px 0; }
.btn-sm { padding:5px 12px; font-size:.8rem; }

/* ============================================================= */
/* Video Factory (admin)                                         */
/* ============================================================= */
.factory { display:grid; grid-template-columns:280px 1fr; gap:20px; align-items:start; }
@media (max-width:820px){ .factory{ grid-template-columns:1fr; } }

.factory-nav { background:var(--surface); border:1px solid var(--line); border-radius:14px; padding:10px; max-height:80vh; overflow:auto; position:sticky; top:16px; }
.fnav-track { font-size:.72rem; text-transform:uppercase; letter-spacing:.06em; color:var(--muted); font-weight:700; padding:12px 8px 6px; }
.fnav-mod { display:flex; align-items:center; gap:9px; padding:8px 10px; border-radius:8px; color:var(--text); text-decoration:none; font-size:.86rem; line-height:1.3; }
.fnav-mod:hover { background:var(--surface-2); }
.fnav-mod.is-sel { background:var(--brand); color:#fff; }
.fnav-mod .dot { width:8px; height:8px; border-radius:50%; background:var(--line); flex-shrink:0; }
.fnav-mod .dot.ok { background:var(--green, #27C281); }

.factory-main { min-width:0; }
.fmod-head { display:flex; justify-content:space-between; align-items:flex-start; margin-bottom:16px; gap:12px; }
.fmod-head h2 { font-size:1.4rem; margin:2px 0 0; }
.save-state { font-size:.8rem; color:var(--muted); white-space:nowrap; }
.save-state.ok { color:#4ade80; }
.save-state.err { color:#f87171; }

.fcard { background:var(--surface); border:1px solid var(--line); border-radius:14px; padding:18px; margin-bottom:18px; }
.fcard-head { display:flex; justify-content:space-between; align-items:baseline; gap:10px; margin-bottom:12px; flex-wrap:wrap; }
.fcard-head h3 { font-size:1rem; margin:0; }
#script { width:100%; min-height:300px; resize:vertical; background:var(--ink,#0F1318); color:var(--text); border:1px solid var(--line); border-radius:10px; padding:14px; font-family:ui-monospace,SFMono-Regular,Menlo,monospace; font-size:.86rem; line-height:1.6; }
#script:focus { outline:none; border-color:var(--brand); }

.frow { display:flex; align-items:center; gap:14px; margin-top:12px; flex-wrap:wrap; }
.fselect { background:var(--ink,#0F1318); color:var(--text); border:1px solid var(--line); border-radius:8px; padding:9px 12px; font-size:.86rem; min-width:240px; }
.fmini { display:flex; align-items:center; gap:8px; font-size:.8rem; color:var(--muted); }
.fmini input[type=range] { width:110px; }
.fcheck { display:flex; align-items:center; gap:8px; font-size:.85rem; color:var(--muted); }

.rec-status { font-size:.85rem; color:var(--muted); }
.rec-status.live { color:#ff4d4d; font-weight:600; }
.rec-status.ok { color:#4ade80; font-weight:600; }
.rec-status.err { color:#f87171; }
.rec-preview { width:100%; max-height:420px; border-radius:10px; margin-top:14px; background:#000; display:block; }