@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@500&family=Source+Sans+3:wght@400;500;600&family=Source+Serif+4:wght@600;700&display=swap');
:root{--p:#1e293b;--a:#d97706;--as:#fef3c7;--bg:#fafafa;--s:#fff;--b:#e2e8f0;--t:#0f172a;--m:#64748b;--ok:#22c55e;--serif:'Source Serif 4',serif;--sans:'Source Sans 3',sans-serif;--mono:'IBM Plex Mono',monospace}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--t);font:16px/1.55 var(--sans)}
.app{width:min(100%,440px);min-height:100vh;margin:auto;padding:24px 16px 72px;background:var(--bg)}
.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
.brand{font:700 22px var(--serif);color:var(--p)}.brand:before{content:'◎';color:var(--a);margin-right:8px}
.mono,.meta{font:500 12px var(--mono);color:var(--m)}
h1{font:700 32px/1.2 var(--serif);color:var(--p);letter-spacing:-.02em;margin:0 0 12px}
h2{font:600 20px/1.3 var(--serif);color:var(--p);margin:0 0 8px}
.body-strong{font-size:16px;font-weight:600;color:var(--p)}
.lead{font-size:16px;line-height:1.55;color:var(--m);max-width:620px}
.stack{display:grid;gap:20px}.stack-sm{display:grid;gap:10px}.hidden{display:none}
.intake-screen{padding-top:8vh;justify-items:center;width:100%}.intro-block{max-width:36rem;text-align:center;width:100%}.intro-block .lead{margin:0 auto}.form-card{width:min(100%,700px)}
.card{background:var(--s);border:1px solid var(--b);border-radius:16px;padding:20px 24px;box-shadow:none}
.url-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:center;margin-top:8px}.field{width:100%;padding:14px;border:1px solid var(--b);border-radius:12px;font:inherit;margin:0;outline:none}
.field:focus{border-color:var(--a);box-shadow:0 0 0 3px rgba(217,119,6,.25)}
.aim-card{display:flex;justify-content:center;align-items:center;text-align:center}.stepper{display:flex;align-items:center;justify-content:center;gap:20px}.stepper-btn{width:44px;height:44px;border:1px solid var(--b);border-radius:999px;background:#fff;color:var(--p);font:600 24px/1 var(--sans)}.stepper-value{font:700 40px/1 var(--serif);letter-spacing:-.03em;color:var(--p)}
.analysis-list{display:grid;gap:10px}.analysis-item{display:flex;gap:12px;align-items:flex-start}.analysis-mark{width:18px;min-width:18px;text-align:center;color:var(--m);font:600 14px var(--mono)}.analysis-item.done .analysis-mark{color:var(--a)}.analysis-text{color:var(--m);line-height:1.5}.analysis-item.done .analysis-text{color:var(--p)}
.btn{min-height:48px;padding:0 20px;border:none;border-radius:12px;font:600 16px var(--sans);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;white-space:nowrap}
.primary{background:var(--a);color:#fff}.secondary{background:#fff;border:1px solid var(--b);color:var(--m)}
.actions{display:flex;gap:10px;flex-wrap:wrap}.actions .secondary{border-color:transparent;padding:0 4px;min-height:auto;color:var(--m)}
.err{color:#b91c1c;font-size:14px;min-height:18px;margin:6px 0 0}
.gate-reasons{margin:8px 0 0;padding:0 0 0 1.1rem;color:#9f1239;font-size:13px;line-height:1.45}
.gate-reasons.hidden{display:none}
.intake-warn{margin:0 0 12px;padding:10px 12px;border-left:3px solid var(--amber,#b45309);background:rgba(180,83,9,.06);font-size:14px;line-height:1.45;color:var(--ink-muted,#475569)}
.progress{height:5px;background:var(--as);border-radius:9px;overflow:hidden}.progress i{display:block;height:100%;background:var(--a)}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.src-tag{display:inline-flex;align-items:center;vertical-align:middle;margin-left:6px;padding:3px 7px;border:1px solid var(--b);border-radius:999px;font:500 10px/1 var(--mono);letter-spacing:.02em;color:var(--m);background:#fff;white-space:nowrap}.tag-video{border-color:rgba(217,119,6,.35);background:#fffbeb;color:#92400e}.tag-topic{border-color:rgba(30,41,59,.2);background:#f8fafc;color:#334155}.tag-ielts{border-color:#d6d3d1;background:#fafaf9;color:#57534e}
.chip{font:500 12px var(--mono);border:1px solid var(--b);border-radius:999px;padding:5px 10px;color:var(--m);background:#fff}.chip.on{background:#fff;color:var(--p)}.chip.warn{background:#fff;color:var(--p)}
.muted{color:var(--m)}.thumb{width:100%;border-radius:12px;border:1px solid var(--b)}
.video-shell{border:1px solid var(--b);border-radius:14px;overflow:hidden;background:#fff;box-shadow:none;line-height:0}
.video-frame{display:block;width:100%;aspect-ratio:16/9;border:0;background:#000;vertical-align:top}
.row{display:flex;gap:12px;align-items:center}.grow{flex:1}
.step{padding:12px 0;border-top:1px solid var(--b)}.step:first-child{padding-top:0;border-top:0}.step b{display:block;margin-bottom:4px;font-weight:600}
.num{font:700 40px var(--serif);color:var(--p)}
.opt{display:block;padding:14px 16px;border:1px solid var(--b);border-radius:12px;margin:8px 0;background:#fff}
.passage{font-family:var(--serif);line-height:1.8}.passage p + p{margin-top:16px}
.note{border:1px solid var(--b);background:#fff;border-radius:12px;padding:14px 16px;color:var(--m)}
.grid{display:grid;gap:16px}@media(min-width:720px){.grid.two{grid-template-columns:1fr 1fr}}
.deepbar{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;column-gap:16px;margin:0 0 12px}.deepbar .top-link{justify-self:start;font:500 12px var(--mono);color:var(--m)}.deepbar .top-link:hover{color:var(--p)}.deepbar .top-link-end{justify-self:end}.deepbar .mono{justify-self:center;letter-spacing:.04em}
.wave{height:1px;background:var(--b);opacity:1;border-radius:0;margin-bottom:0}
.deep .top{opacity:1}textarea{width:100%;min-height:180px;padding:14px;border:1px solid var(--b);border-radius:12px;font:inherit;margin:12px 0;outline:none}textarea:focus{border-color:var(--a);box-shadow:0 0 0 3px rgba(217,119,6,.25)}
.opt{cursor:pointer}.opt:hover{border-color:var(--b)}
ul{margin:8px 0 0;padding-left:18px}li{margin:4px 0}
.opt.selected{border-color:var(--p);background:#fff}
.ordering-layout{display:grid;gap:14px}.ordering-item{display:flex;gap:12px;align-items:flex-start;padding:14px;border:1px solid var(--b);border-radius:14px;background:#fff}.order-num{font:600 13px var(--mono);color:var(--m);min-width:18px}.ordering-actions{display:flex;gap:8px;flex-direction:column}.btn-mini{min-height:34px;padding:0 12px;border-radius:10px;border:1px solid var(--b);background:#fff;color:var(--m);font:600 13px var(--sans);cursor:pointer}.btn-mini:disabled{opacity:.35;cursor:not-allowed}
.review-card{display:grid;gap:20px}.review-head{display:grid;gap:6px}.review-score{font:700 52px/1 var(--serif);letter-spacing:-.03em;color:var(--p)}.review-body{display:grid;gap:18px}@media(min-width:720px){.review-body{grid-template-columns:1.15fr .85fr}}.review-title{font-size:15px;line-height:1.6;color:var(--p)}.review-breakdown{display:grid;gap:8px}.review-row{justify-content:space-between}.review-foot{padding-top:2px}
@media(max-width:640px){.url-row{grid-template-columns:1fr}.url-row .btn{width:100%}}
@media(min-width:900px){.ordering-layout{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){body{padding:24px}.app{width:min(100%,960px);min-height:calc(100vh - 48px);border:1px solid var(--b);border-radius:20px;box-shadow:0 8px 28px rgba(15,23,42,.08);padding:28px 24px 84px;overflow:hidden}}

.brand-btn,.top-link{border:0;background:transparent;padding:0;cursor:pointer}.brand-btn{font:700 22px var(--serif);color:var(--p)}
.top-actions{display:flex;gap:14px;align-items:center}.top-link{font:500 12px var(--mono);color:var(--m)}.top-link:hover{color:var(--p)}#aimTop.hidden{display:none}@media(max-width:420px){.top-actions{gap:8px}.top-link{font-size:11px}}

/* Login — fixed overlay, never pushes app content */
body.is-login{overflow:hidden}
.login-screen{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:32px 20px;background:
  radial-gradient(120% 80% at 50% -10%, rgba(217,119,6,.07), transparent 55%),
  radial-gradient(90% 60% at 100% 100%, rgba(30,41,59,.04), transparent 50%),
  var(--bg)}
.login-screen.hidden{display:none!important}
.login-panel{width:min(100%,380px);display:grid;gap:0;text-align:center;padding:48px 36px 40px;border:1px solid var(--b);border-radius:20px;background:#fff;box-shadow:0 1px 2px rgba(15,23,42,.04),0 24px 48px rgba(15,23,42,.06)}
.login-kicker{margin:0 0 20px;font:500 11px/1 var(--mono);letter-spacing:.14em;color:var(--m)}
.login-wordmark{font:700 52px/1 var(--serif);letter-spacing:-.045em;color:var(--p);margin:0}
.login-tagline{margin:14px 0 0;font:400 15px/1.5 var(--sans);color:var(--m);letter-spacing:.01em}
.login-rule{width:40px;height:1px;margin:28px auto 32px;background:var(--a);opacity:.85}
.login-actions{width:100%;display:grid;gap:12px}
.login-google{width:100%;min-height:50px;background:var(--p);color:#fff;border-radius:12px;font:600 15px var(--sans);letter-spacing:.01em;transition:background .15s ease}
.login-google:hover{background:#0f172a}
.login-actions .btn.secondary{width:100%;min-height:48px;background:#fff;color:var(--p);border:1px solid var(--b);border-radius:12px;font:600 14px var(--sans)}
.login-foot{margin:24px 0 0;font-size:13px;line-height:1.5;color:var(--m);opacity:.9}
.login-note{font-size:14px;line-height:1.5;color:var(--m);margin:0}

.skip-link{margin-left:auto;color:var(--m);font:500 12px var(--mono);text-decoration:none;border:0;background:transparent;padding:0;cursor:pointer}.skip-link:hover{color:var(--p)}.library-row{display:flex;align-items:center;gap:12px;padding:14px 0;border-top:1px solid var(--b)}.library-row:first-child{padding-top:0;border-top:0}.library-row:last-child{padding-bottom:0}.library-thumb{width:88px;aspect-ratio:16/9;object-fit:cover;border:1px solid var(--b);border-radius:10px;background:#fff}.row-action{flex:0 0 auto;min-height:auto;padding:0;border:0;border-radius:0;background:transparent;box-shadow:none;font:600 14px var(--sans);color:var(--a);cursor:pointer;white-space:nowrap}.row-action:hover{color:var(--p)}.row-action:focus-visible{outline:2px solid rgba(217,119,6,.35);outline-offset:3px}@media(max-width:420px){.library-thumb{width:72px}.row-action{font-size:13px}}

.skill-step{cursor:pointer}.skill-step:hover{border-color:var(--b)}
.reading-status{display:flex;justify-content:space-between;align-items:center;gap:12px}.reading-status .mono{color:var(--a)}
.feedback-card.ok{border-color:rgba(34,197,94,.35)}.feedback-card.no{border-color:rgba(217,119,6,.45)}
.writing-sample{padding:14px 0;border-top:1px solid var(--b);cursor:pointer}.writing-sample:first-of-type{border-top:0;padding-top:4px}
.writing-sample:focus-visible{outline:2px solid var(--amber,#b45309);outline-offset:4px}
.writing-prompt{margin:6px 0 8px;font-size:13px}
.writing-excerpt{margin:0;line-height:1.55;color:var(--p);display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden}
.writing-more{display:inline-block;margin-top:6px;color:var(--ink-muted,#64748b)}
.writing-reader{max-width:40rem}
.writing-reader-meta{gap:12px;flex-wrap:wrap;margin:4px 0 8px}
.writing-reader-prompt{margin:0;line-height:1.55;color:var(--p)}
.writing-reader-body{margin:0;line-height:1.7;white-space:pre-wrap;color:var(--p);font-size:16px}

/* History — one continuous Aim journey */
.history-page{display:grid;gap:28px;padding:0;background:
  radial-gradient(120% 70% at 0% 0%, rgba(217,119,6,.06), transparent 50%),
  radial-gradient(80% 50% at 100% 0%, rgba(30,41,59,.04), transparent 45%)}
.history-intro{display:grid;gap:10px;padding:8px 24px 4px}
.history-intro h1{margin:0}
.history-intro .lead{max-width:36rem;margin:0}
.history-signal{display:grid;gap:22px;padding:24px;border:1px solid var(--b);border-radius:18px;background:#fff}
.history-section-label{margin:0;padding-inline:24px}
.history-signal-top{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:24px 32px}
.history-signal-aim{display:grid;gap:6px;justify-items:start}
.history-aim-num{line-height:1;margin:0}
.history-signal-arc{display:grid;gap:8px;justify-items:start;min-width:0}
.history-spark{display:block}
.history-spark-aim{stroke:rgba(217,119,6,.35);stroke-width:1;stroke-dasharray:3 3}
.history-spark-line{stroke:var(--p);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.history-spark-now{fill:var(--a)}
.history-trend{margin:0;font:500 12px/1.4 var(--mono);color:var(--m);letter-spacing:.02em;max-width:18rem}
.history-arc-empty{margin:0;font-size:13px}
.history-signal-grid{display:grid;grid-template-columns:repeat(4,max-content);justify-content:start;column-gap:40px;row-gap:16px;padding-top:2px}
.history-stat-cell{display:grid;gap:6px;min-width:0}
.history-stat{margin:0;font:700 22px/1 var(--serif);color:var(--p);letter-spacing:-.02em}
.history-insight{display:grid;gap:18px;padding-top:18px;border-top:1px solid var(--b)}
.history-insight-item{display:grid;gap:6px;min-width:0}
.history-insight-item p{margin:0;font:500 15px/1.45 var(--sans);color:var(--p)}
.history-timeline{display:grid;gap:0}
.history-entry{display:grid;grid-template-columns:18px minmax(0,1fr);gap:14px;align-items:stretch}
.history-entry.is-latest .history-dot{box-shadow:0 0 0 5px rgba(217,119,6,.18)}
.history-entry.is-latest .history-title{font-weight:700}
.history-rail{position:relative;display:flex;justify-content:center}
.history-dot{width:9px;height:9px;margin-top:8px;border-radius:50%;background:var(--a);box-shadow:0 0 0 4px rgba(217,119,6,.12);z-index:1}
.history-stem{position:absolute;top:20px;bottom:-8px;width:1px;background:linear-gradient(180deg,rgba(217,119,6,.45),var(--b))}
.history-body{display:grid;gap:12px;padding:0 0 28px}
.history-when{display:flex;justify-content:space-between;align-items:center;gap:12px}
.history-rel{font:500 11px var(--mono);letter-spacing:.02em}
.history-rel.rel-on{color:#15803d}.history-rel.rel-close{color:var(--a)}.history-rel.rel-below{color:var(--m)}.history-rel.rel-soft{color:var(--m)}
.history-main{display:grid;grid-template-columns:96px minmax(0,1fr);gap:14px;align-items:start}
.history-thumb{width:96px;aspect-ratio:16/9;object-fit:cover;border:1px solid var(--b);border-radius:12px;background:#fff}
.history-copy{display:grid;gap:6px;min-width:0}
.history-topic{margin:0;font:500 12px var(--mono);color:var(--a);letter-spacing:.02em}
.history-thread-mark{color:var(--m);font-weight:400}
.history-title{margin:0;font:600 18px/1.3 var(--serif);color:var(--p);letter-spacing:-.015em}
.history-evidence{margin:0;font:400 14px/1.45 var(--sans);color:var(--m)}
.history-metrics{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px 14px;margin-top:2px}
.history-band{display:inline-flex;align-items:baseline;gap:8px}
.history-band strong{font:700 20px/1 var(--serif);color:var(--p)}
.history-gap,.history-step{color:var(--m)}
.history-empty{padding:28px 24px;border:1px dashed var(--b);border-radius:18px;background:#fff;display:grid;gap:10px}
.history-empty h2{margin:0}
.history-sync{display:grid;gap:12px;justify-items:start;padding:18px 0 0;border-top:1px solid var(--b)}
@media(min-width:720px){
  .history-insight{grid-template-columns:1fr 1fr;gap:24px 40px}
}
@media(max-width:640px){
  .history-intro,.history-section-label{padding-inline:20px}
  .history-signal{padding:20px}
  .history-signal-top{grid-template-columns:1fr;align-items:start;gap:20px}
  .history-signal-grid{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:24px}
  .history-main{grid-template-columns:72px minmax(0,1fr);gap:12px}
  .history-thumb{width:72px}
  .history-title{font-size:17px}
}
.dictation-how{margin:0;padding-left:1.2em;color:var(--m);display:grid;gap:8px;font:400 14px/1.5 var(--sans)}
.dictation-how b{color:var(--p);font-weight:600}
.dictation-blank{display:inline-flex;align-items:center;justify-content:center;min-width:1.6em;padding:0 4px;margin:0 2px;border-bottom:2px solid var(--a);color:var(--a);font:600 14px var(--mono)}
.dictation-line{line-height:1.7}
.dictation-gap-row{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:center}
.dictation-gap-row .mono{color:var(--a)}
.dictation-gaps{margin-top:4px}
.dictation-replays{display:flex;flex-wrap:wrap;gap:8px}
.dictation-replays .replay-clip.used,
.dictation-replays .replay-clip:disabled{opacity:.45;cursor:default}
.step-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:4px}
.step-head b{margin:0}
.skill-step.is-done{background:transparent}
.skill-status{display:inline-flex;align-items:baseline;gap:8px;flex-shrink:0;font:500 11px/1.2 var(--mono);letter-spacing:.04em;text-transform:uppercase;color:var(--m);border:0;background:transparent;padding:0}
.skill-status-band{font:600 15px/1 var(--serif);letter-spacing:-.02em;color:var(--p);text-transform:none}
.skill-status.is-idle .skill-status-label{letter-spacing:.03em;text-transform:none;font-weight:500}
.skill-status.is-scored .skill-status-label{color:var(--m)}
.skill-status.is-skipped .skill-status-label{color:var(--m);opacity:.85}
.skill-status.is-withheld .skill-status-label{color:var(--a)}

/* Language practice — quick review after the last item */
.lang-review{gap:22px}
.lang-review .review-head{padding-bottom:4px}
.lang-review-list{display:grid;gap:0;border-top:1px solid var(--b)}
.lang-review-row{padding:14px 0;border-bottom:1px solid var(--b);display:grid;gap:6px}
.lang-review-row:last-child{border-bottom:0;padding-bottom:2px}
.lang-review-row .mono{letter-spacing:.04em}
.lang-review-row.is-ok .mono{color:#15803d}
.lang-review-row.is-miss .mono{color:var(--a)}
.lang-review-yours{margin:0;font-size:13px;line-height:1.45}
.lang-review-tip{margin:0;font-size:14px;line-height:1.5;color:var(--p)}
.lang-opts{display:grid;gap:0}