:root{
  --paper:#F2F3EF; --surface:#FFFFFF; --ink:#16202A; --muted:#5B6772; --line:#D8DCD6;
  --accent:#2B44C9; --accent-ink:#FFFFFF; --soft:#E7EAF8; --tally:#D99A12; --tally-soft:#FBF1DA; --cue-ink:#7A5400;
  --ok:#2F7D4F; --warn:#B4531C;
  --display:"Unbounded", "Arial Black", system-ui, sans-serif;
  --body:"IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono:"IBM Plex Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --paper:#0E1418; --surface:#162027; --ink:#E6EBEE; --muted:#95A2AC; --line:#29343D;
    --accent:#8497FF; --accent-ink:#0E1418; --soft:#1C2542; --tally:#F0B43A; --tally-soft:#2E2613; --cue-ink:#F0C466;
    --ok:#6BC28F; --warn:#F08A55;
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --paper:#0E1418; --surface:#162027; --ink:#E6EBEE; --muted:#95A2AC; --line:#29343D;
  --accent:#8497FF; --accent-ink:#0E1418; --soft:#1C2542; --tally:#F0B43A; --tally-soft:#2E2613; --cue-ink:#F0C466;
  --ok:#6BC28F; --warn:#F08A55;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:15px;line-height:1.55;padding:0 16px;}
.wrap{max-width:1120px;margin:0 auto;padding-block:28px 64px}
h1,h2,h3{text-wrap:balance;margin:0}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* top bar */
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.rec{width:10px;height:10px;border-radius:50%;background:var(--tally);box-shadow:0 0 0 4px var(--tally-soft)}
.steps{display:flex;gap:6px;flex-wrap:wrap}
.step{font-family:var(--mono);font-size:12px;padding:6px 10px;border:1px solid var(--line);border-radius:999px;color:var(--muted);background:transparent;cursor:pointer}
.step[aria-current="step"]{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.step:disabled{cursor:default;opacity:.55}

.hero{padding-block:36px 26px;display:grid;gap:14px;max-width:780px}
.hero h1{font-family:var(--display);font-weight:700;font-size:clamp(28px,4.6vw,46px);line-height:1.08;letter-spacing:-.01em}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero p{margin:0;color:var(--muted);font-size:16px;max-width:62ch}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}

.btn{border:1px solid var(--line);background:var(--surface);padding:10px 16px;border-radius:10px;cursor:pointer;font-weight:500;display:inline-flex;align-items:center;gap:8px}
.btn:hover{border-color:var(--ink)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.07)}
.btn.ghost{background:transparent}
.btn:disabled{opacity:.5;cursor:not-allowed;filter:none}
.btn.sm{padding:7px 12px;font-size:13px;border-radius:8px}

.note{border:1px solid var(--line);border-left:3px solid var(--tally);background:var(--tally-soft);padding:12px 14px;border-radius:8px;font-size:14px}
.note b{font-weight:600}

/* brief layout */
.brief{display:grid;grid-template-columns:230px 1fr;gap:32px;align-items:start}
.rail{position:sticky;top:calc(env(safe-area-inset-top,0px) + 16px);display:grid;gap:14px}
.rail nav{display:grid;gap:2px}
.rail a{display:flex;justify-content:space-between;gap:8px;text-decoration:none;color:var(--muted);padding:7px 10px;border-radius:8px;font-size:14px}
.rail a:hover{background:var(--surface);color:var(--ink)}
.rail a .cnt{font-family:var(--mono);font-size:12px}
.rail a.done .cnt{color:var(--ok)}
.meter{height:6px;background:var(--line);border-radius:99px;overflow:hidden}
.meter i{display:block;height:100%;background:var(--accent);width:0;transition:width .3s}
.meter-l{font-family:var(--mono);font-size:12px;color:var(--muted);display:flex;justify-content:space-between}

.group{padding-block:6px 30px;border-top:1px solid var(--line)}
.group:first-child{border-top:0}
.g-head{display:flex;align-items:baseline;gap:12px;padding-block:18px 14px}
.g-head .gn{font-family:var(--mono);font-size:12px;color:var(--accent)}
.g-head h2{font-family:var(--display);font-weight:500;font-size:20px}
.g-head p{margin:0;color:var(--muted);font-size:14px}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:16px 18px}
.f{display:grid;gap:6px;align-content:start}
.f.full{grid-column:1/-1}
.f label{font-weight:600;font-size:14px}
.f label .req{color:var(--warn);margin-left:3px}
.f .hint{font-size:13px;color:var(--muted);margin:0}
.f input,.f select,.f textarea{width:100%;background:var(--surface);border:1px solid var(--line);border-radius:9px;padding:10px 12px;line-height:1.45}
.f textarea{min-height:88px;resize:vertical}
.f input::placeholder,.f textarea::placeholder{color:var(--muted);opacity:.7}
.f input:focus,.f select:focus,.f textarea:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px var(--soft)}
.f.missing input,.f.missing textarea{border-color:var(--warn)}

.upload{display:flex;align-items:center;gap:12px;flex-wrap:wrap;border:1px dashed var(--line);border-radius:10px;padding:14px;background:var(--surface)}
.upload input{display:none}
.upload .fn{font-family:var(--mono);font-size:13px;color:var(--muted)}

.gen-bar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;justify-content:space-between;border-top:1px solid var(--line);padding-top:22px}
.gen-bar .msg{color:var(--muted);font-size:14px}

details.tpl{border:1px solid var(--line);border-radius:12px;background:var(--surface);margin-top:28px}
details.tpl summary{cursor:pointer;padding:14px 16px;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:12px}
details.tpl summary::after{content:"+";font-family:var(--mono);color:var(--muted)}
details.tpl[open] summary::after{content:"–"}
.tpl ol{margin:0;padding:0 16px 16px 16px;list-style:none;display:grid;gap:10px;counter-reset:b}
.tpl li{display:grid;grid-template-columns:34px 1fr;gap:10px;font-size:14px}
.tpl li::before{counter-increment:b;content:counter(b,decimal-leading-zero);font-family:var(--mono);color:var(--accent);font-size:12px;padding-top:2px}
.tpl li b{display:block}
.tpl li span{color:var(--muted)}

/* clarify */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px;display:grid;gap:18px;max-width:780px}
.panel h2{font-family:var(--display);font-weight:500;font-size:22px}
.q{display:grid;gap:6px}
.q label{font-weight:600}
.q textarea{width:100%;min-height:70px;background:var(--paper);border:1px solid var(--line);border-radius:9px;padding:10px 12px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

.thinking{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:13px;color:var(--muted)}
.thinking .rec{animation:blink 1.2s infinite}
@keyframes blink{50%{opacity:.25}}
@media (prefers-reduced-motion: reduce){.thinking .rec{animation:none}}

/* script */
.script-layout{display:grid;grid-template-columns:1fr 280px;gap:28px;align-items:start}
.toolbar{position:sticky;top:calc(env(safe-area-inset-top,0px) + 16px);display:grid;gap:14px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px;display:grid;gap:4px}
.stat .k{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.stat .v{font-family:var(--display);font-size:26px;font-variant-numeric:tabular-nums}
.stat .s{font-size:13px;color:var(--muted)}
.tools{display:grid;gap:8px}
.tools .btn{justify-content:center}
.revise{display:grid;gap:8px}
.revise .btn{justify-content:center}
.revise textarea{width:100%;min-height:80px;background:var(--surface);border:1px solid var(--line);border-radius:9px;padding:10px 12px;font-size:14px}

.doc{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:clamp(18px,4vw,44px);min-height:420px}
.doc:focus{outline:none}
.doc[contenteditable="true"]:focus-within{box-shadow:0 0 0 3px var(--soft)}
.doc h1{font-family:var(--display);font-weight:700;font-size:clamp(22px,3vw,30px);margin-bottom:6px}
.doc .meta{font-family:var(--mono);font-size:12px;color:var(--muted);margin-bottom:22px}
.blk{padding-block:18px 8px;border-top:1px solid var(--line)}
.blk-h{display:flex;align-items:baseline;gap:12px;margin-bottom:10px;flex-wrap:wrap}
.blk-h .tc{font-family:var(--mono);font-size:12px;color:var(--accent);font-variant-numeric:tabular-nums;min-width:44px}
.blk-h h2{font-family:var(--body);font-weight:600;font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);flex:1}
.blk-h .dur{font-family:var(--mono);font-size:12px;color:var(--muted)}
.doc p{margin:0 0 12px;font-size:17px;line-height:1.6;max-width:66ch}
.doc ul{margin:0 0 12px;padding-left:22px;font-size:17px;max-width:66ch}
.doc li{margin-bottom:4px}
.doc .cue{font-family:var(--mono);font-size:13px;color:var(--cue-ink);background:var(--tally-soft);border-radius:6px;padding:6px 10px;display:block;max-width:66ch}
.doc .ph{background:var(--tally-soft);color:var(--warn);border-radius:4px;padding:0 4px;font-weight:600}
.empty{color:var(--muted);display:grid;gap:10px;place-items:start}

.err{color:var(--warn);font-size:14px}
.toast{position:fixed;left:50%;bottom:calc(env(safe-area-inset-bottom,0px) + 20px);transform:translateX(-50%);background:var(--ink);color:var(--paper);padding:10px 16px;border-radius:10px;font-size:14px;z-index:9}

@media (max-width:880px){
  .brief,.script-layout{grid-template-columns:1fr}
  .rail,.toolbar{position:static}
  .rail nav{display:flex;flex-wrap:wrap;gap:4px}
  .fields{grid-template-columns:1fr}
}