:root{
  --ink:#15171C;
  --ink-60:#5A5F6B;
  --ink-30:#9AA0AC;
  --paper:#E7E9EC;
  --surface:#FFFFFF;
  --line:#D3D7DE;
  --signal:#1B3DF5;
  --signal-soft:#E6EAFE;
  --progress:#9A5B00;
  --progress-soft:#FDF3E2;
  --done:#0E8F5E;
  --done-soft:#E3F5ED;
  --radius:3px;
  --rail:350px;
  --sidebar:236px;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
html,body{height:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:'Inter Tight',system-ui,sans-serif;font-size:14px;line-height:1.45;
  -webkit-font-smoothing:antialiased;
}
button{font:inherit;color:inherit;cursor:pointer}
input,textarea,select{font:inherit;color:var(--ink)}
:focus-visible{outline:2px solid var(--signal);outline-offset:2px}
.mono{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.02em}
.spacer{flex:1}

/* ---------- header ---------- */
header.bar{
  display:flex;align-items:center;gap:14px;padding:0 16px;height:56px;
  background:var(--surface);border-bottom:1px solid var(--line);
}
.mark{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:17px;letter-spacing:-.03em;text-decoration:none;color:var(--ink)}
.bar .divider{width:1px;height:20px;background:var(--line)}
.docname{font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:26ch}

.btn{
  padding:7px 13px;border:1px solid var(--line);background:var(--surface);
  border-radius:var(--radius);font-size:13px;font-weight:500;
  transition:border-color .12s,background .12s;text-decoration:none;display:inline-block;
}
.btn:hover{border-color:var(--ink-30)}
.btn.primary{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn.primary:hover{background:#2A2E38}
.btn.danger:hover{border-color:#C33;color:#C33}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn.small{padding:4px 9px;font-size:12px}

.chip{
  display:inline-flex;align-items:center;gap:7px;padding:4px 9px;
  border:1px solid var(--line);border-radius:100px;background:var(--surface);
  font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.02em;
}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--signal)}

.seg{display:flex;border:1px solid var(--line);border-radius:100px;overflow:hidden;background:var(--surface)}
.seg button{padding:5px 12px;border:0;background:transparent;font-size:12px;color:var(--ink-60)}
.seg button[aria-pressed="true"]{background:var(--ink);color:#fff}

/* ---------- dashboard ---------- */
.wrap{max-width:860px;margin:0 auto;padding:36px 20px 90px}
.h1{
  font-family:'Bricolage Grotesque',sans-serif;font-weight:800;
  font-size:26px;letter-spacing:-.035em;margin:0 0 4px;
}
.sub{color:var(--ink-60);margin:0 0 26px}

.card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:20px;
}
.logincard{max-width:380px;margin:9vh auto 0}
.field{margin-bottom:12px}
.field label{display:block;font-size:12px;color:var(--ink-60);margin-bottom:4px}
.input{
  width:100%;padding:8px 10px;border:1px solid var(--line);
  border-radius:var(--radius);background:var(--surface);
}
.input:focus{outline:none;border-color:var(--signal)}
.formerr{color:#C33;font-size:13px;margin-top:10px;min-height:18px}

.newproject{display:flex;gap:8px;margin-bottom:22px}
.newproject .input{flex:1}

.plist{display:flex;flex-direction:column;gap:10px}
.prow{
  display:flex;align-items:center;gap:14px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;
}
.prow .pname{font-weight:600;font-size:15px}
.prow .pmeta{color:var(--ink-60);font-size:12px;margin-top:2px}
.prow .actions{display:flex;gap:6px}

/* ---------- review layout ---------- */
.review{display:grid;grid-template-rows:auto 1fr;height:100%}
.review main{display:grid;grid-template-columns:var(--sidebar) 1fr var(--rail);min-height:0}

/* pages sidebar */
.side{
  background:var(--surface);border-right:1px solid var(--line);
  display:grid;grid-template-rows:auto 1fr auto;min-height:0;
}
.sidehead{padding:14px 14px 10px;border-bottom:1px solid var(--line)}
.sidetitle{font-family:'Bricolage Grotesque',sans-serif;font-weight:600;font-size:14px;letter-spacing:-.01em}
.pagelist{overflow-y:auto;min-height:0;padding:6px}
.pagebtn{
  display:block;width:100%;text-align:left;background:none;border:0;
  padding:9px 10px;border-radius:var(--radius);
}
.pagebtn:hover{background:var(--paper)}
.pagebtn[aria-current="true"]{background:var(--signal-soft)}
.pagebtn .pn{font-weight:500;display:flex;align-items:center;gap:8px}
.pagebtn .pu{color:var(--ink-30);font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:1px}
.badge{
  flex:none;font-family:'IBM Plex Mono',monospace;font-size:10px;
  background:var(--signal);color:#fff;border-radius:100px;padding:1px 6px;
}
.badge[data-zero="1"]{background:var(--ink-30)}
.addpage{padding:12px 14px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:7px}
.addpage .input{font-size:13px;padding:7px 9px}

/* stage */
.stage{overflow:auto;padding:26px 24px 90px;position:relative;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){.stage{scroll-behavior:auto}}
.frameWrap{
  position:relative;margin:0 auto;background:var(--surface);
  box-shadow:0 1px 2px rgba(21,23,28,.10),0 10px 28px rgba(21,23,28,.07);
  border-radius:var(--radius);overflow:hidden;
}
.frameWrap iframe{border:0;display:block;transform-origin:0 0;background:#fff}
.pinlayer{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.pindoc{position:absolute;left:0;top:0}
.pinlayer .pin,.pinlayer .composer{pointer-events:auto}

.stageEmpty{max-width:430px;margin:12vh auto 0;text-align:center;color:var(--ink-60)}
.stageEmpty h2{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;letter-spacing:-.03em;font-size:22px;color:var(--ink);margin:0 0 8px}

.pin{
  position:absolute;transform:translate(-50%,-50%);
  width:26px;height:26px;border-radius:50% 50% 50% 3px;
  background:var(--signal);color:#fff;border:2px solid #fff;
  display:grid;place-items:center;padding:0;
  font-family:'IBM Plex Mono',monospace;font-size:11px;font-weight:500;
  box-shadow:0 2px 6px rgba(21,23,28,.3);
}
.pin[data-status="progress"]{background:var(--progress)}
.pin[data-status="resolved"]{background:var(--done)}
.pin[data-active="1"]{box-shadow:0 0 0 4px rgba(27,61,245,.25),0 2px 6px rgba(21,23,28,.3)}

.composer{
  position:absolute;z-index:20;width:280px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:0 8px 30px rgba(21,23,28,.18);padding:11px;
}
.composer textarea{
  width:100%;height:74px;resize:none;padding:8px;border:1px solid var(--line);
  border-radius:var(--radius);background:var(--surface);font-size:13px;
}
.composer textarea:focus,.composer .input:focus{outline:none;border-color:var(--signal)}
.composer .row{display:flex;gap:6px;margin-top:8px;align-items:center}
.composer .nameinput{margin-bottom:8px;font-size:13px;padding:7px 9px}

/* rail */
.rail{
  background:var(--surface);border-left:1px solid var(--line);
  display:grid;grid-template-rows:auto 1fr;min-height:0;
}
.railhead{padding:14px 16px 12px;border-bottom:1px solid var(--line)}
.railtitle{
  font-family:'Bricolage Grotesque',sans-serif;font-weight:600;font-size:15px;
  letter-spacing:-.02em;display:flex;align-items:baseline;gap:8px;margin-bottom:10px;
}
.count{color:var(--ink-30)}
.filters{display:flex;gap:4px;flex-wrap:wrap}
.filters button{padding:4px 10px;border:1px solid transparent;background:transparent;border-radius:100px;font-size:12px;color:var(--ink-60)}
.filters button[aria-pressed="true"]{background:var(--ink);color:#fff}

.list{overflow-y:auto;min-height:0}
.empty{padding:40px 22px;color:var(--ink-60);text-align:center}
.empty strong{display:block;color:var(--ink);font-weight:600;margin-bottom:5px}

.item{border-bottom:1px solid var(--line);padding:12px 14px}
.item[data-active="1"]{background:var(--signal-soft)}
.itemhead{display:flex;gap:9px;align-items:flex-start}
.itembody{flex:1;min-width:0;text-align:left;background:none;border:0;padding:0}
.itemmeta{color:var(--ink-30);margin-bottom:3px;display:flex;gap:8px;align-items:center}
.itemtext{font-size:13px;word-wrap:break-word}
.item[data-status="resolved"] .itemtext{color:var(--ink-60)}

.pill{
  font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.03em;
  padding:1px 7px;border-radius:100px;
}
.pill[data-status="open"]{background:var(--signal-soft);color:var(--signal)}
.pill[data-status="progress"]{background:var(--progress-soft);color:var(--progress)}
.pill[data-status="resolved"]{background:var(--done-soft);color:var(--done)}

.thread{margin:10px 0 0 0;display:flex;flex-direction:column;gap:8px}
.reply{border-left:2px solid var(--line);padding-left:9px}
.reply .who{color:var(--ink-30)}
.reply .who[data-side="studio"]{color:var(--signal)}
.reply p{margin:1px 0 0;font-size:13px;white-space:pre-wrap}
.replybox{display:flex;gap:6px;margin-top:4px}
.replybox input{flex:1;min-width:0;padding:6px 8px;border:1px solid var(--line);border-radius:var(--radius);font-size:13px;background:var(--surface)}
.replybox input:focus{outline:none;border-color:var(--signal)}
.statusrow{display:flex;align-items:center;gap:8px;margin-top:2px}
.statusrow select{
  padding:4px 6px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);font-size:12px;
}

.toast{
  position:fixed;left:50%;bottom:22px;transform:translateX(-50%);
  background:var(--ink);color:#fff;padding:9px 15px;border-radius:100px;
  font-size:13px;z-index:60;box-shadow:0 6px 20px rgba(21,23,28,.25);
}

.loading{position:absolute;inset:0;display:grid;place-items:center;background:rgba(231,233,236,.7);z-index:5;pointer-events:none}
.loading span{background:var(--surface);border:1px solid var(--line);border-radius:100px;padding:7px 14px;font-size:13px;color:var(--ink-60)}

@media (max-width:1060px){
  .review main{grid-template-columns:1fr;grid-template-rows:auto 1fr auto}
  .side{border-right:0;border-bottom:1px solid var(--line);grid-template-rows:auto auto auto}
  .pagelist{display:flex;overflow-x:auto;padding:6px}
  .pagebtn{width:auto;flex:none;max-width:220px}
  .rail{border-left:0;border-top:1px solid var(--line);max-height:44vh}
}

/* fullscreen (zen) mode */
body.zen .side, body.zen .rail { display: none }
body.zen .review main { grid-template-columns: 1fr }
body.zen .stage { padding: 18px 18px 60px }