/* Cyb5r Training platform — brand tokens from cyb5r.com */
:root {
  --paper: #FFFFFF; --panel: #F2F7FC; --line: #D5DEF0;
  --ink: #0A1128; --soft: #333D5C; --muted: #64748F;
  --cyan: #0E7490; --cyan-bright: #00B5CC; --violet: #5B3FD6;
  --good: #056B38; --warn: #92600A; --bad: #B42318;
  --void: #04081A; --grad: linear-gradient(135deg, #00E5FF 0%, #8B6BFF 100%);
  --font-display: 'Sora', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #04081A; --panel: #0B1330; --line: rgba(122,150,201,.25);
    --ink: #EAF1FD; --soft: #B9C6E2; --muted: #9FAECB;
    --cyan: #00E5FF; --cyan-bright: #7DF3FF; --violet: #8B6BFF;
    --good: #4ADE80; --warn: #FBBF24; --bad: #F87171;
  }
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: var(--paper); color: var(--ink);
  font: 400 1rem/1.6 var(--font-body); min-height: 100vh;
  display: flex; flex-direction: column; }
main { flex: 1; width: 100%; max-width: 1100px; margin: 0 auto; padding: 2rem 1.25rem; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.2; }
h1 { font-size: 2rem; margin-bottom: 1rem; }
h2 { font-size: 1.4rem; margin: 1.5rem 0 .75rem; }
h3 { font-size: 1.1rem; margin: 1rem 0 .5rem; }
p, li { color: var(--soft); }
p { margin: .6rem 0; }
ul, ol { margin: .6rem 0 .6rem 1.4rem; }
a { color: var(--cyan); }
code { font-family: var(--font-mono); font-size: .92em; background: var(--panel);
  padding: .1em .35em; border-radius: 5px; }
pre { background: var(--void); color: #7DF3FF; font-family: var(--font-mono);
  padding: 1rem 1.2rem; border-radius: 10px; overflow-x: auto; margin: .8rem 0; }
pre code { background: none; padding: 0; color: inherit; }
hr { border: 0; border-top: 1px solid var(--line); margin: 1.2rem 0; }
blockquote { border-left: 4px solid var(--violet); padding: .3rem 1rem; margin: .8rem 0;
  color: var(--muted); }

.site-header { display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: .9rem 1.5rem; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.logo { font-family: var(--font-display); font-weight: 800; font-size: 1.2rem;
  color: var(--ink); text-decoration: none; }
.logo-5 { background: var(--grad); -webkit-background-clip: text; background-clip: text;
  color: transparent; font-size: 1.35rem; }
.logo-sub { color: var(--muted); font-weight: 400; }
.site-header nav { display: flex; align-items: center; gap: 1.1rem; flex-wrap: wrap; }
.site-header nav a { color: var(--soft); text-decoration: none; }
.site-header nav a:hover { color: var(--cyan); }
.site-footer { padding: 1.2rem 1.5rem; border-top: 1px solid var(--line);
  color: var(--muted); font-size: .8rem; text-align: center; }

.btn { display: inline-block; background: var(--violet); color: #fff; border: 0;
  border-radius: 8px; padding: .55rem 1.2rem; font: 600 1rem var(--font-body);
  cursor: pointer; text-decoration: none; }
.btn:hover { filter: brightness(1.1); }
.btn-sm { padding: .35rem .8rem; font-size: .9rem; }
.btn-outline { background: transparent; color: var(--violet); border: 1.5px solid var(--violet); }
.btn-danger { background: var(--bad); }
.btn-grad { background: var(--grad); color: #04081A; font-weight: 700; }
.linklike { background: none; border: 0; color: var(--soft); font: inherit;
  cursor: pointer; padding: 0; }
.linklike:hover { color: var(--cyan); }
.inline { display: inline; }

.flash { max-width: 1100px; margin: .8rem auto 0; padding: .7rem 1.2rem;
  border-radius: 8px; border: 1px solid var(--line); }
.flash-ok { border-left: 5px solid var(--good); }
.flash-warn { border-left: 5px solid var(--warn); }
.flash-err { border-left: 5px solid var(--bad); }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 1.2rem 1.4rem; margin: .8rem 0; }
.grid { display: grid; gap: 1.2rem; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

.narrow { max-width: 480px; margin: 0 auto; }
.center { text-align: center; }

form .field { margin: .9rem 0; }
label { display: block; font-weight: 600; margin-bottom: .25rem; }
input[type=text], input[type=email], input[type=password], input[type=number],
select, textarea { width: 100%; padding: .55rem .7rem; border: 1px solid var(--line);
  border-radius: 8px; background: var(--paper); color: var(--ink); font: inherit; }
textarea { min-height: 140px; font-family: var(--font-mono); font-size: .92rem; }
textarea.tall { min-height: 320px; }
.help { color: var(--muted); font-size: .85rem; }

.table-wrap { overflow-x: auto; margin: .8rem 0; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; }
th, td { border: 1px solid var(--line); padding: .5rem .8rem; text-align: left; }
th { background: var(--panel); font-family: var(--font-display); }

.badge { display: inline-block; font-size: .75rem; font-weight: 700; padding: .1rem .55rem;
  border-radius: 999px; background: var(--panel); border: 1px solid var(--line);
  color: var(--muted); }
.badge-good { color: var(--good); border-color: var(--good); }
.badge-warn { color: var(--warn); border-color: var(--warn); }
.badge-bad { color: var(--bad); border-color: var(--bad); }

.cart-count:not(:empty) { background: var(--violet); color: #fff; border-radius: 999px;
  font-size: .72rem; padding: 0 .4rem; margin-left: .25rem; }

/* pricing */
.plan { display: flex; flex-direction: column; }
.plan .price { font: 800 2.2rem var(--font-display); margin: .4rem 0; }
.plan .price small { font-size: 1rem; color: var(--muted); font-weight: 400; }
.plan ul { flex: 1; }
.plan.featured { border: 2px solid transparent;
  background: linear-gradient(var(--panel), var(--panel)) padding-box, var(--grad) border-box; }

/* course player */
.player { display: grid; grid-template-columns: 280px 1fr; gap: 1.5rem; align-items: start; }
.player-nav { position: sticky; top: 1rem; max-height: 85vh; overflow-y: auto;
  border: 1px solid var(--line); border-radius: 12px; padding: .8rem; }
.player-nav h3 { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em;
  color: var(--violet); margin: .8rem 0 .3rem; }
.player-nav a { display: block; padding: .28rem .5rem; border-radius: 6px;
  color: var(--soft); text-decoration: none; font-size: .92rem; }
.player-nav a:hover { background: var(--panel); }
.player-nav a.active { background: var(--panel); color: var(--cyan); font-weight: 600; }
.player-nav a.done::before { content: "✓ "; color: var(--good); }
.player-nav a.locked { opacity: .45; }
.deck { margin: 0 0 .4rem; }
.deck-tools { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem;
  margin-bottom: .5rem; }
.deck-tools .deck-hint { color: var(--muted); font-size: .8rem; }
.deck-tools kbd { font-family: var(--font-mono); font-size: .75rem; background: var(--panel);
  border: 1px solid var(--line); border-radius: 4px; padding: 0 .3rem; }
.btn-sm { padding: .3rem .7rem; font-size: .85rem; }
.deck-frame { display: block; width: 100%; height: min(78vh, 56.25vw); min-height: 320px;
  border: 1px solid var(--line); border-radius: 12px;
  resize: vertical; overflow: auto; }
.deck:fullscreen { background: var(--paper); padding: .5rem; }
.deck.is-max { position: fixed; inset: 0; z-index: 1000; margin: 0; padding: .5rem;
  background: var(--paper); display: flex; flex-direction: column; gap: .5rem; }
.deck.is-max .deck-frame { flex: 1 1 auto; height: auto; min-height: 0; resize: none;
  border-radius: 8px; }
body.deck-maxed { overflow: hidden; }
@media (max-width: 820px) { .player { grid-template-columns: 1fr; } }

/* quiz taking */
.question { margin: 1.4rem 0; }
.question .stem { font-weight: 500; }
.option { display: flex; gap: .6rem; align-items: flex-start; padding: .5rem .7rem;
  border: 1px solid var(--line); border-radius: 8px; margin: .4rem 0; cursor: pointer; }
.option:hover { border-color: var(--cyan); }
.option input { margin-top: .3rem; }
.option.correct { border-color: var(--good); background: color-mix(in srgb, var(--good) 8%, transparent); }
.option.incorrect { border-color: var(--bad); background: color-mix(in srgb, var(--bad) 8%, transparent); }
.rationale { font-size: .92rem; color: var(--muted); margin: .3rem 0 0 2rem; }
.timer { position: sticky; top: 0; background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; padding: .5rem 1rem; font-family: var(--font-mono);
  display: inline-block; }

/* progress bars */
.progressbar { height: 12px; border-radius: 6px; background: var(--panel);
  border: 1px solid var(--line); overflow: hidden; }
.progressbar span { display: block; height: 100%; background: var(--grad); }

/* domain heat map */
.heatmap { display: grid; gap: .5rem; }
.heatmap .row { display: grid; grid-template-columns: 220px 1fr 60px; gap: .8rem;
  align-items: center; }
.heatmap .bar { height: 14px; border-radius: 7px; background: var(--panel);
  overflow: hidden; border: 1px solid var(--line); }
.heatmap .fill { height: 100%; background: var(--grad); }
.heatmap .weak .fill { background: var(--bad); }

/* admin */
.admin-wrap { display: grid; grid-template-columns: 220px 1fr; gap: 1.5rem; align-items: start; }
.admin-nav { position: sticky; top: 1rem; border: 1px solid var(--line); border-radius: 12px;
  padding: .8rem; }
.admin-nav a { display: block; padding: .35rem .6rem; border-radius: 6px;
  color: var(--soft); text-decoration: none; }
.admin-nav a:hover { background: var(--panel); color: var(--cyan); }
[hidden] { display: none !important; }
.toolbar { display: flex; gap: .7rem; align-items: center; flex-wrap: wrap; margin: .8rem 0; }
.toolbar form { display: flex; gap: .5rem; }
.stat { text-align: center; }
a.stat { display: block; color: inherit; text-decoration: none; }
a.stat:hover { border-color: var(--cyan); }
.stat .n { font: 800 2rem var(--font-display); background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent; }
.error-detail { text-align: left; font-size: .8rem; }
.actions { display: flex; gap: .4rem; flex-wrap: wrap; }
@media (max-width: 820px) { .admin-wrap { grid-template-columns: 1fr; } }

/* Lesson narration (lecture / listen to this page) */
.narration { margin: 0 0 1rem; padding: .75rem .9rem; border: 1px solid var(--line);
  border-radius: 10px; background: var(--panel); display: grid; gap: .5rem; }
.narration-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem; }
.narration-label { font-family: var(--font-display); font-weight: 600; color: var(--ink); }
.narration-speed { display: inline-flex; gap: .25rem; }
.narration-speed .is-on { border-color: var(--cyan); color: var(--cyan); }
.narration audio { width: 100%; }
.narration-caption { margin: 0; min-height: 1.5em; color: var(--soft); font-size: .95rem; }

/* Synced lecture and read-along (narration timing) */
.narration-switch { display: inline-flex; align-items: center; gap: .3rem; font-size: .85rem; color: var(--soft); cursor: pointer; }
.readable { cursor: pointer; border-radius: 4px; transition: background-color .2s; }
.readable:hover { background: color-mix(in srgb, var(--cyan) 8%, transparent); }
.is-reading { background: color-mix(in srgb, var(--cyan) 16%, transparent); box-shadow: -4px 0 0 var(--cyan); }
tr.is-reading { box-shadow: none; }

/* Certificates and transcripts print cleanly */
.certificate-body { text-align: center; padding: 2.5rem 2rem; }
.certificate-body h1 { margin: .4rem 0; }
@media print {
  .site-header, .site-footer, .flash, .no-print, .admin-nav { display: none !important; }
  body { background: #fff; color: #000; }
  .card { border: 1px solid #999; background: #fff; }
}