:root{
  --bg:#f6f7f8; --card:#fff; --ink:#111417; --muted:#697079;
  --line:#e3e6e9; --accent:#0f7b6c; --accent-ink:#fff;
  --warn:#b45309; --warn-bg:#fef3c7; --danger:#b42318; --ok:#0f7b6c;
  --radius:14px;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#111417; --card:#191d21; --ink:#e9edf1; --muted:#98a1ab;
    --line:#2a3037; --accent:#3ecf9a; --accent-ink:#07130f;
    --warn:#fbbf24; --warn-bg:#3a2f14; --danger:#f87171;
  }
}
*{box-sizing:border-box}
/* Must outrank author display rules (e.g. .sheet-wrap{display:flex}),
   otherwise the `hidden` attribute silently does nothing. */
[hidden]{display:none!important}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font:15px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  padding-bottom:78px;
}
h1{font-size:18px;margin:0}
h2{font-size:15px;margin:0 0 10px;letter-spacing:.02em;text-transform:uppercase;color:var(--muted)}
.sub{margin:2px 0 0;color:var(--muted);font-size:13px}

.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 16px;background:var(--card);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:5;
}
main{padding:16px;max-width:760px;margin:0 auto}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px;margin-bottom:12px}
.row{display:flex;align-items:center;justify-content:space-between;gap:10px}
.row+.row{margin-top:10px;padding-top:10px;border-top:1px solid var(--line)}
.stack{display:flex;flex-direction:column;gap:2px;min-width:0}
.name{font-weight:600}
.muted{color:var(--muted);font-size:13px}
.right{text-align:right;white-space:nowrap}
.big{font-size:26px;font-weight:700;letter-spacing:-.01em}

button{font:inherit;cursor:pointer}
.btn{
  background:var(--accent);color:var(--accent-ink);border:0;border-radius:10px;
  padding:11px 14px;font-weight:600;min-height:44px;
}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn.danger{background:transparent;color:var(--danger);border:1px solid var(--line)}
.btn.block{display:block;width:100%}
.btn:disabled{opacity:.45;cursor:not-allowed}
.icon-btn{background:transparent;border:0;color:var(--muted);font-size:17px;padding:8px;min-height:40px;min-width:40px;border-radius:8px}
.btn-row{display:flex;gap:8px;flex-wrap:wrap}

.badge{
  font-size:11px;text-transform:uppercase;letter-spacing:.06em;font-weight:700;
  padding:5px 9px;border-radius:999px;background:var(--line);color:var(--muted);white-space:nowrap;
}
.badge.live{background:var(--accent);color:var(--accent-ink)}

.chip{
  display:inline-flex;align-items:center;gap:6px;background:var(--bg);
  border:1px solid var(--line);border-radius:999px;padding:5px 6px 5px 11px;
  font-size:13px;margin:4px 4px 0 0;max-width:100%;
}
.chip.tbd{border-color:var(--warn);background:var(--warn-bg);color:var(--warn)}
.chip .x{background:transparent;border:0;color:inherit;opacity:.6;font-size:14px;padding:0 4px;cursor:pointer}
.chip.done{opacity:.5;text-decoration:line-through}

input[type=text],input[type=number],input[type=search]{
  font:inherit;background:var(--bg);color:var(--ink);border:1px solid var(--line);
  border-radius:10px;padding:11px 12px;width:100%;min-height:44px;
}
input:focus{outline:2px solid var(--accent);outline-offset:1px}
label.field{display:block;margin-bottom:10px}
label.field span{display:block;font-size:13px;color:var(--muted);margin-bottom:5px}

pre.msg{
  background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px;
  white-space:pre-wrap;word-break:break-word;font:13px/1.5 ui-monospace,Menlo,Consolas,monospace;margin:0 0 10px;
}

.tabs{
  position:fixed;left:0;right:0;bottom:0;display:flex;background:var(--card);
  border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);z-index:6;
}
.tab{
  flex:1;background:transparent;border:0;color:var(--muted);
  display:flex;flex-direction:column;align-items:center;gap:2px;padding:9px 2px;font-size:17px;
}
.tab span{font-size:10px;letter-spacing:.02em}
.tab[aria-selected=true]{color:var(--accent)}

.sheet-wrap{position:fixed;inset:0;z-index:20;display:flex;align-items:flex-end;justify-content:center}
.sheet-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.5)}
.sheet{
  position:relative;background:var(--card);width:100%;max-width:760px;max-height:85vh;overflow:auto;
  border-radius:16px 16px 0 0;padding:14px 14px calc(14px + env(safe-area-inset-bottom));
}
.sheet-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.pick{
  display:flex;justify-content:space-between;align-items:center;gap:10px;width:100%;
  background:transparent;border:0;border-bottom:1px solid var(--line);
  padding:13px 2px;color:var(--ink);text-align:left;min-height:48px;
}
.pick:last-child{border-bottom:0}

.toast{
  position:fixed;left:50%;transform:translateX(-50%);bottom:90px;z-index:30;
  background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:999px;font-size:14px;
}
.empty{text-align:center;color:var(--muted);padding:26px 10px}
.note{font-size:13px;color:var(--warn);background:var(--warn-bg);border-radius:10px;padding:10px 12px;margin-bottom:12px}