/* Layout: one centered reading column; lesson card on top, narration and controls below; outline as a stacked list. */
:root {
  --bg: #17110C; --panel: #211812; --panel2: #2A1F17; --ink: #EDE2D6; --muted: #B3A596; --rule: #3A2E25;
  --bronze: #DBA26C; --bronze-ink: #1A1007; --good: #7CC59B; --bad: #E58B7B; --field: #120D09; --focus: #F2C690;
  --display: Georgia, "Iowan Old Style", "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) { --bg: #EDEBE8; --panel: #F8F6F3; --panel2: #EFEAE4; --ink: #2A1E16; --muted: #66594D; --rule: #D2C8BE;
    --bronze: #8F5226; --bronze-ink: #FFFFFF; --good: #2B7248; --bad: #A33B2A; --field: #FFFFFF; --focus: #8F5226; color-scheme: light; }
}
:root[data-theme="light"] { --bg: #EDEBE8; --panel: #F8F6F3; --panel2: #EFEAE4; --ink: #2A1E16; --muted: #66594D; --rule: #D2C8BE;
  --bronze: #8F5226; --bronze-ink: #FFFFFF; --good: #2B7248; --bad: #A33B2A; --field: #FFFFFF; --focus: #8F5226; color-scheme: light; }

* { box-sizing: border-box; }
body { background: var(--bg); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.55; padding-inline: 16px; padding-block: 0 48px; }
h1, h2, h3 { font-family: var(--display); font-weight: 600; line-height: 1.2; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(1.7rem, 5vw, 2.3rem); } h2 { font-size: clamp(1.35rem, 4vw, 1.7rem); } h3 { font-size: 1.15rem; }
p { margin: 0; } a { color: var(--bronze); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.wrap { max-width: 720px; margin-inline: auto; }
.top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 5; background: var(--bg); border-bottom: 1px solid var(--rule); margin-inline: -16px; padding: 10px 16px 0; }
.top-row { max-width: 720px; margin-inline: auto; display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 36px; }
.brand { font-weight: 700; letter-spacing: .08em; font-size: .82rem; text-transform: uppercase; color: var(--bronze); }
.where { color: var(--muted); font-size: .85rem; text-align: right; min-width: 0; }
.bar { max-width: 720px; margin: 8px auto 0; height: 4px; background: var(--rule); border-radius: 2px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--bronze); width: 0; transition: width .3s; }
@media (prefers-reduced-motion: reduce) { .bar > i { transition: none; } }
main { padding-top: 28px; display: flex; flex-direction: column; gap: 22px; }
.stack { display: flex; flex-direction: column; gap: 14px; }
.muted { color: var(--muted); } .small { font-size: .88rem; }
.eyebrow { text-transform: uppercase; letter-spacing: .1em; font-size: .75rem; color: var(--muted); font-weight: 600; }
.pill { display: inline-block; border: 1px solid var(--rule); border-radius: 99px; padding: 2px 10px; font-size: .75rem; color: var(--muted); }
.notice { border: 1px dashed var(--bronze); border-radius: 6px; padding: 10px 14px; font-size: .88rem; color: var(--muted); }
.btn { font: inherit; font-weight: 600; min-height: 46px; padding: 10px 20px; border-radius: 4px; border: 2px solid var(--bronze); background: var(--bronze); color: var(--bronze-ink); cursor: pointer; }
.btn.alt { background: transparent; color: var(--bronze); }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.row.between { justify-content: space-between; }
.card { background: var(--panel); border: 1px solid var(--rule); border-radius: 6px; padding: 18px; min-width: 0; }
.seg { display: grid; grid-template-columns: 1fr auto; gap: 8px 14px; align-items: center; }
.seg h3 { grid-column: 1; } .seg .state { grid-column: 2; grid-row: 1; } .seg p, .seg .row { grid-column: 1 / -1; }
.state { font-size: .8rem; font-weight: 600; padding: 2px 10px; border-radius: 99px; border: 1px solid var(--rule); color: var(--muted); }
.state.done { color: var(--good); border-color: var(--good); } .state.open { color: var(--bronze); border-color: var(--bronze); }
.card.locked { opacity: .6; }
/* slide stage */
.slide { background: var(--panel2); border: 1px solid var(--rule); border-radius: 6px; padding: 22px 20px; min-height: 240px; display: flex; flex-direction: column; gap: 14px; }
.slide img { display: block; width: 100%; height: auto; border-radius: 4px; }
.slide .slideimg { aspect-ratio: 3 / 2; object-fit: cover; background: #fff; border: 1px solid var(--rule); }
.slide .no { font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.slide ul { margin: 0; padding-left: 1.2em; display: flex; flex-direction: column; gap: 6px; }
.slide li.lead { list-style: none; margin-left: -1.2em; font-weight: 600; }
.ex { display: flex; flex-direction: column; gap: 4px; padding: 12px 14px; border-radius: 4px; background: var(--panel); border: 1px solid var(--rule); }
.ex b { font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; color: var(--bronze); }
.ex.vague span { color: var(--muted); font-style: italic; }
.narr { display: flex; flex-direction: column; gap: 10px; }
.narr audio { width: 100%; }
details.tr summary { cursor: pointer; font-weight: 600; min-height: 32px; }
details.tr p { margin-top: 8px; }
/* quiz */
fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
legend { font-family: var(--display); font-size: 1.25rem; line-height: 1.35; padding: 0; margin-bottom: 14px; }
.opts { display: flex; flex-direction: column; gap: 10px; }
.opt { display: flex; gap: 12px; align-items: flex-start; padding: 12px 14px; border: 1px solid var(--rule); border-radius: 6px; background: var(--panel); cursor: pointer; min-height: 48px; }
.opt:hover { border-color: var(--bronze); }
.opt input { margin-top: 4px; width: 20px; height: 20px; accent-color: var(--bronze); flex: none; }
.opt:has(input:checked) { border-color: var(--bronze); background: var(--panel2); }
.opt span { min-width: 0; overflow-wrap: anywhere; }
.rev { border: 1px solid var(--rule); border-radius: 6px; padding: 14px 16px; background: var(--panel); display: flex; flex-direction: column; gap: 8px; }
.rev.ok { border-left: 4px solid var(--good); } .rev.no { border-left: 4px solid var(--bad); }
.rev .q { font-weight: 600; } .rev .mark { font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.rev.ok .mark { color: var(--good); } .rev.no .mark { color: var(--bad); }
.score { font-family: var(--display); font-size: 3rem; line-height: 1; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field input { font: inherit; min-height: 46px; padding: 8px 12px; border-radius: 4px; border: 1px solid var(--rule); background: var(--field); color: var(--ink); }
/* certificate */
.cert { background: var(--panel); border: 2px solid var(--bronze); border-radius: 4px; padding: 30px 22px; text-align: center; display: flex; flex-direction: column; gap: 14px; align-items: center; }
.cert .name { font-family: var(--display); font-size: clamp(1.7rem, 6vw, 2.4rem); color: var(--bronze); border-bottom: 1px solid var(--rule); padding: 0 16px 8px; overflow-wrap: anywhere; }
.cert .certimg { display: block; width: 100%; max-width: 380px; height: auto; border-radius: 4px; background: #fff; }
.cert .id { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: .95rem; letter-spacing: .04em; white-space: nowrap; margin-top: -8px; }

.seg .segimg { grid-column: 1 / -1; width: 100%; height: auto; border-radius: 4px; border: 1px solid var(--rule); background: #fff; }
.buy h3 { margin: 0; }
/* Narration player: play/pause, back 10 seconds, and a progress line that cannot be dragged */
.aplayer { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 12px; background: var(--panel); border: 1px solid var(--rule); border-radius: 99px; padding: 8px 14px; }
.aplayer .btn { min-height: 44px; min-width: 44px; padding: 6px 16px; border-radius: 99px; }
.aplayer .track { flex: 1 1 120px; height: 6px; background: var(--rule); border-radius: 3px; overflow: hidden; }
.aplayer .track i { display: block; height: 100%; width: 0; background: var(--bronze); }
.aplayer .time { font-size: .85rem; color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.agreelink { color: var(--bronze); text-decoration: underline; font-weight: 600; }
.seatnotice { border-color: var(--bronze); }
.opt input:disabled { opacity: .45; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

legend, .rev .q { white-space: pre-line; }
.coretag { border-color: var(--bronze); color: var(--bronze); }
.betapill { vertical-align: middle; border-color: var(--bronze); color: var(--bronze); font-family: var(--sans); }
.emblem { display: block; height: auto; }
.emblem.big { width: 120px; margin: 0 auto; }
.cert .certemblem { width: 110px; filter: grayscale(1); }
.gateintro .sub { font-size: 1.05rem; margin-top: 4px; }
.gateintro .lead2 { font-size: 1.1rem; }
ul.plain { margin: 0; padding-left: 1.2em; display: flex; flex-direction: column; gap: 6px; }
.rules p { margin: 0; }
.jumpbtn { white-space: nowrap; }
.cert h1 { font-size: clamp(1.5rem, 5vw, 2rem); }
@page { size: letter portrait; margin: 0.5in; }
@media print {
  .top, .noprint, #live { display: none !important; }
  body { background: #fff; color: #000; padding: 0; }
  main { padding-top: 0; }
  .wrap { max-width: none; }
  .cert { break-inside: avoid; page-break-inside: avoid; border: 2px solid #000; background: #fff; color: #000; padding: 0.3in 0.4in; gap: 12px; min-height: 9.5in; justify-content: space-evenly; }
  .cert .certimg { max-width: 5.2in; }
  .cert .certemblem { width: 1.3in; filter: grayscale(1); }
  .cert .name { color: #000; border-color: #000; }
  .cert .muted { color: #333; }
}
.fbq { gap: 10px; }
.fbleg { font-family: var(--display); font-size: 1.1rem; line-height: 1.35; margin: 0 0 4px; }
.fbq textarea { font: inherit; width: 100%; min-height: 84px; padding: 10px 12px; border-radius: 4px; border: 1px solid var(--rule); background: var(--field); color: var(--ink); }
.opts.nps { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 8px; }
.opts.nps .opt { min-width: 0; flex-direction: column; align-items: center; justify-content: center; gap: 6px; padding: 10px 4px; }
.opts.nps .opt input { margin-top: 0; }
.opts.nps .opt span { white-space: nowrap; font-weight: 600; }
.fbq[hidden] { display: none; }
/* buzz-word bingo */
.bingo { border: 1px solid var(--rule); border-radius: 6px; background: var(--panel); padding: 8px 12px; }
.bingo summary { cursor: pointer; font-weight: 600; min-height: 36px; display: flex; align-items: center; }
.bingo[open] summary { margin-bottom: 8px; }
.bgrid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 5px; margin: 10px 0 6px; }
.bcell { font: inherit; font-size: clamp(.6rem, 2.8vw, .78rem); line-height: 1.1; min-height: 56px; padding: 4px 1px; overflow-wrap: normal; word-break: normal; hyphens: none; border-radius: 4px; border: 1px solid var(--rule); background: var(--panel2); color: var(--ink); cursor: pointer; text-transform: capitalize; }
.bcell.on { background: var(--bronze); color: var(--bronze-ink); border-color: var(--bronze); font-weight: 600; }
.bcell.free { font-weight: 600; opacity: 1; }
.bcell:disabled { cursor: default; }
.bmsg { min-height: 1.3em; color: var(--muted); }