/* FlightLine Oral: approved design (docs/design/oral-sim-design-APPROVED-2026-10-05.html).
   Tokens = FlightLine's shipped design system. Single dark look by design.
   Fonts are self-hosted (client/fonts/, SIL Open Font License): nothing loads from outside. */
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/space-grotesk-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/space-grotesk-latin-500-normal.woff2) format('woff2')}
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/space-grotesk-latin-600-normal.woff2) format('woff2')}
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:700;font-display:swap;src:url(fonts/space-grotesk-latin-700-normal.woff2) format('woff2')}
@font-face{font-family:'Space Mono';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/space-mono-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'Space Mono';font-style:normal;font-weight:700;font-display:swap;src:url(fonts/space-mono-latin-700-normal.woff2) format('woff2')}

:root{
  --bg:#000000; --surface:#0d0d0d; --surface2:#141414;
  --border:rgba(255,255,255,0.08); --border2:rgba(255,255,255,0.16);
  --text:#ffffff; --dim:rgba(255,255,255,0.55); --faint:rgba(255,255,255,0.32);
  --accent:#cc2200; --accent-bright:#e03010; --green:#22c55e; --amber:#e0a030;
  --sans:'Space Grotesk',ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'Space Mono',ui-monospace,'SFMono-Regular',Menlo,monospace;
  color-scheme:dark;
}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text)}
body{font-family:var(--sans);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}
*{box-sizing:border-box}
[hidden]{display:none!important}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
button:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--accent-bright);outline-offset:2px}
.label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--dim)}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.error{color:var(--accent-bright);margin:0}

.wrap{max-width:720px;margin:0 auto;padding-inline:16px}
.top{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding-block:calc(18px + env(safe-area-inset-top,0px)) 18px;border-bottom:1px solid var(--border)}
.brand{font-family:var(--sans);font-weight:700;letter-spacing:.14em;font-size:15px}
.brand b{color:var(--accent)}
.brand small{display:block;font-family:var(--mono);font-weight:400;letter-spacing:.12em;font-size:10px;color:var(--dim);margin-top:2px}

/* START */
.start{padding-block:40px 64px;display:grid;gap:28px}
.start p{margin:0}
.start h1{font-size:clamp(30px,7vw,46px);line-height:1.05;margin:0;letter-spacing:-.02em;text-wrap:balance}
.start h1 span{color:var(--accent)}
.start p.lead{color:var(--dim);max-width:56ch}
.facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--border);border-radius:10px;overflow:hidden}
.facts div{padding:14px;border-right:1px solid var(--border);min-width:0}
.facts div:last-child{border-right:0}
.facts strong{display:block;font-size:22px;font-variant-numeric:tabular-nums}
.rules{display:grid;gap:10px;margin:0;padding:0;list-style:none}
.rules li{display:flex;gap:12px;color:var(--dim)}
.rules li::before{content:"";flex:0 0 6px;height:6px;margin-top:9px;background:var(--accent);border-radius:1px}
.rules li b{color:var(--text);font-weight:500}
.check{display:flex;align-items:center;gap:14px;border:1px solid var(--border);border-radius:10px;padding:14px;background:var(--surface);flex-wrap:wrap}
.check .meter{display:flex;gap:3px;align-items:flex-end;height:22px}
.check .meter i{width:4px;background:var(--faint);border-radius:2px;height:4px;transition:height .08s}
.check.ok .meter i{background:var(--green)}
.check.bad .meter i{background:var(--accent)}
.check .txt{flex:1;min-width:180px}
.check .txt b{display:block;font-weight:500}
.check .txt span{color:var(--dim);font-size:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 22px;border-radius:8px;font-weight:600;letter-spacing:.02em}
.btn.primary{background:var(--accent);color:#fff}
.btn.primary:hover{background:var(--accent-bright)}
.btn.ghost{border:1px solid var(--border2)}
.btn.small{padding:10px 14px;font-size:14px}
.btn[disabled]{opacity:.4;cursor:not-allowed}
a.btn{text-decoration:none}

/* free preview sign-in */
.signin{flex-direction:column;align-items:stretch;gap:12px}
.signin-row{display:flex;gap:10px;flex-wrap:wrap}
.signin-row input{flex:1;min-width:180px;font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--border2);border-radius:8px;padding:12px 14px}
.signin-row input::placeholder{color:var(--faint)}
.signin-row input:focus-visible{outline:2px solid var(--accent-bright);outline-offset:2px}
.optin{display:flex;gap:10px;align-items:center;font-size:13px;color:var(--dim);cursor:pointer}
.optin input{accent-color:var(--accent)}
.signin-msg{margin:0;font-size:14px;color:var(--dim)}
.signin-msg:empty{display:none}
.signin-msg.err{color:var(--accent-bright)}
.signin-msg.ok{color:var(--green)}

/* EXAM */
.exam{display:flex;flex-direction:column;min-height:calc(100dvh - 120px)}
.progress{display:flex;align-items:center;gap:10px;white-space:nowrap}
.dots{display:flex;gap:5px}
.dots i{width:22px;height:4px;border-radius:2px;background:var(--border2)}
.dots i.done{background:var(--dim)}
.dots i.now{background:var(--accent)}
.examiner{padding-block:28px 18px;border-bottom:1px solid var(--border)}
.who{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.bars{display:flex;gap:3px;align-items:center;height:16px}
.bars i{width:3px;height:4px;background:var(--accent);border-radius:2px}
.speaking .bars i{animation:wave 0.9s ease-in-out infinite}
.bars i:nth-child(2){animation-delay:.12s}.bars i:nth-child(3){animation-delay:.24s}.bars i:nth-child(4){animation-delay:.36s}.bars i:nth-child(5){animation-delay:.48s}
@keyframes wave{0%,100%{height:4px}50%{height:16px}}
.say{font-size:clamp(22px,5vw,30px);line-height:1.25;letter-spacing:-.01em;margin:0;text-wrap:balance;min-height:2.5em;overflow-wrap:anywhere}
.say .w{opacity:.18;transition:opacity .18s}
.say .w.on{opacity:1}
.replay{margin-top:12px;font-family:var(--mono);font-size:12px;color:var(--dim);display:inline-flex;gap:8px;align-items:center;padding:6px 10px;border:1px solid var(--border);border-radius:999px}
.replay:hover{color:var(--text);border-color:var(--border2)}
.replay[disabled]{opacity:.35;cursor:default}

.log{flex:1;padding-block:18px 240px;display:grid;gap:14px;align-content:start}
.turn{display:grid;gap:4px;min-width:0}
.turn .label{font-size:10px}
.turn p{margin:0;white-space:pre-wrap;overflow-wrap:anywhere}
.turn.ex p{color:var(--dim)}
.turn.st{justify-self:end;max-width:85%;text-align:left}
.turn.st p{background:var(--surface2);border:1px solid var(--border);padding:10px 14px;border-radius:12px 12px 2px 12px}
.turn.st .label{text-align:right}

.composer{position:fixed;left:0;right:0;bottom:0;z-index:10;background:linear-gradient(to top,var(--bg) 70%,rgba(0,0,0,0));padding:28px 16px calc(16px + env(safe-area-inset-bottom,0px))}
.composer .inner{max-width:720px;margin:0 auto;display:grid;gap:10px}
.live{min-height:52px;border:1px solid var(--border);border-radius:12px;background:var(--surface);padding:12px 14px;display:grid;gap:4px;align-items:center}
.live textarea{display:block;width:100%;min-width:0;background:transparent;border:0;color:var(--text);font:inherit;outline:none;resize:none;padding:0;margin:0;max-height:30vh;overflow-y:auto}
.live textarea::placeholder{color:var(--faint)}
.live textarea:disabled{color:var(--dim)}
.interim{color:var(--dim);font-style:italic;white-space:pre-wrap}
.interim:empty{display:none}
.row{display:flex;gap:10px;align-items:center}
.wrap-row{flex-wrap:wrap}
.mic{width:56px;height:56px;border-radius:50%;background:var(--accent);display:grid;place-items:center;flex:0 0 auto;position:relative}
.mic svg{width:22px;height:22px;fill:#fff}
.mic.on::after{content:"";position:absolute;inset:-6px;border-radius:50%;border:2px solid var(--accent-bright);animation:ring 1.2s ease-out infinite}
@keyframes ring{from{opacity:1;transform:scale(.9)}to{opacity:0;transform:scale(1.25)}}
.mic[disabled]{background:var(--surface2);cursor:not-allowed}
.hint{flex:1;font-size:13px;color:var(--dim);min-width:0}
.hint.err{color:var(--accent-bright)}
.send{padding:14px 18px;border-radius:8px;background:var(--text);color:#000;font-weight:600}
.send[disabled]{opacity:.25;cursor:not-allowed}

/* DEBRIEF */
.debrief{padding-block:32px 64px;display:grid;gap:26px}
#debrief{display:grid;gap:26px}
.verdict{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;border-bottom:1px solid var(--border);padding-bottom:22px}
.verdict p{margin:0}
.verdict h1{margin:0;font-size:clamp(48px,14vw,84px);line-height:.9;letter-spacing:-.03em;color:var(--green)}
.verdict.fail h1{color:var(--accent-bright)}
.verdict.incomplete h1{color:var(--amber);font-size:clamp(36px,10vw,64px)}
.verdict .score{text-align:right}
.verdict .score strong{display:block;font-size:28px;font-variant-numeric:tabular-nums}
.qs{display:grid;gap:10px}
.q{border:1px solid var(--border);border-radius:10px;background:var(--surface);overflow:hidden}
.q summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;padding:14px;align-items:center}
.q summary::-webkit-details-marker{display:none}
.q summary .t{min-width:0}
.q summary .t b{display:block;font-weight:500;overflow-wrap:anywhere}
.q summary .t span{font-family:var(--mono);font-size:11px;color:var(--dim);letter-spacing:.06em}
.pill{font-family:var(--mono);font-size:11px;letter-spacing:.08em;padding:4px 8px;border-radius:4px;white-space:nowrap}
.pill.sat{color:var(--green);background:rgba(34,197,94,.12)}
.pill.unsat{color:var(--accent-bright);background:rgba(204,34,0,.16)}
.pill.nc{color:var(--dim);background:rgba(255,255,255,.06)}
.asks{border-top:1px solid var(--border);display:grid}
.ask{padding:12px 14px;display:grid;gap:6px;border-bottom:1px solid var(--border)}
.ask:last-child{border-bottom:0}
.ask .head{display:flex;justify-content:space-between;gap:10px;align-items:baseline}
.ask .head p{margin:0;min-width:0;overflow-wrap:anywhere}
.res{font-family:var(--mono);font-size:11px;white-space:nowrap}
.res.c{color:var(--green)} .res.c2{color:var(--amber)} .res.m{color:var(--accent-bright)} .res.n{color:var(--faint)}
.said{font-size:14px;color:var(--dim);margin:0;white-space:pre-wrap;overflow-wrap:anywhere}
.ans{font-size:14px;margin:0;border-left:2px solid var(--accent);padding-left:10px}
.ans small{display:block;font-family:var(--mono);font-size:11px;color:var(--dim);margin-top:4px}
.note{font-size:13px;color:var(--faint);margin:0}
.flag{font-size:14px;margin:0;color:var(--accent-bright)}
@media (max-width:480px){.facts{grid-template-columns:1fr}.facts div{border-right:0;border-bottom:1px solid var(--border)}.facts div:last-child{border-bottom:0}.ask .head{flex-direction:column;gap:2px}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}