:root{
  --bg:#0b1220; --card:#131c2e; --line:#243149; --fg:#e8edf7; --muted:#93a1bd;
  --accent:#4f8cff; --ok:#3ddc97; --ko:#ff6b6b; --warn:#ffc857;
  --radius:14px;
}
@media (prefers-color-scheme: light){
  :root{ --bg:#f4f6fb; --card:#ffffff; --line:#e2e8f2; --fg:#101828; --muted:#5b6880; }
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--fg);
  font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  padding-bottom:env(safe-area-inset-bottom);
  -webkit-text-size-adjust:100%;
}
h1{font-size:1.1rem;margin:0}
h2{font-size:1rem;margin:0 0 .5rem}
p{margin:.4rem 0}
.muted{color:var(--muted);font-size:.85rem}
code{font-size:.85em}

.top{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:calc(.8rem + env(safe-area-inset-top)) 1rem .8rem;
  border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--bg);z-index:5;
}
.brand{display:flex;align-items:center;gap:.6rem}
.brand img{border-radius:9px}
.brand p{margin:0}

.tabs{display:flex;gap:.4rem;overflow-x:auto;padding:.6rem 1rem;border-bottom:1px solid var(--line);
  scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{
  flex:0 0 auto;background:transparent;color:var(--muted);border:1px solid var(--line);
  border-radius:999px;padding:.35rem .8rem;font-size:.85rem;cursor:pointer;
}
.tab[aria-selected="true"]{background:var(--accent);border-color:var(--accent);color:#fff}

main{padding:1rem;max-width:760px;margin:0 auto}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1rem;margin-bottom:1rem}

button{
  background:var(--card);color:var(--fg);border:1px solid var(--line);
  border-radius:10px;padding:.6rem .9rem;font-size:.95rem;cursor:pointer;
  min-height:44px; touch-action:manipulation;
}
button:active{transform:scale(.98)}
button[disabled]{opacity:.45;cursor:not-allowed}
button.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
button.ghost{background:transparent}
button.small{min-height:34px;padding:.3rem .7rem;font-size:.85rem}

.row{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;margin:.7rem 0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:.5rem;margin:.7rem 0}

input[type=text]{
  width:100%;background:var(--bg);color:var(--fg);border:1px solid var(--line);
  border-radius:10px;padding:.7rem;font:inherit;margin:.35rem 0;min-height:44px;
}
.check-line{display:flex;align-items:center;gap:.5rem;font-size:.9rem;margin:.4rem 0}
.check-line input{width:1.1rem;height:1.1rem}
.item{cursor:pointer}
.item.sel{background:var(--bg);border-radius:8px}
.item .id{font-family:ui-monospace,monospace;font-size:.75rem;color:var(--muted)}

textarea{
  width:100%;background:var(--bg);color:var(--fg);border:1px solid var(--line);
  border-radius:10px;padding:.7rem;font:inherit;resize:vertical;
}

.out{
  background:var(--bg);border:1px solid var(--line);border-radius:10px;
  padding:.7rem;margin:.6rem 0 0;white-space:pre-wrap;word-break:break-word;
  font-size:.8rem;max-height:16rem;overflow:auto;
}
.state{border-left:3px solid var(--accent);padding:.5rem .7rem;background:var(--bg);border-radius:0 8px 8px 0;font-size:.9rem}
.pill{border:1px solid var(--line);border-radius:999px;padding:.25rem .7rem;font-size:.8rem;background:var(--bg)}
.pill.ok{border-color:var(--ok);color:var(--ok)}
.pill.ko{border-color:var(--ko);color:var(--ko)}

.checks{list-style:none;margin:0;padding:0}
.checks li{display:flex;gap:.6rem;align-items:flex-start;padding:.45rem 0;border-bottom:1px dashed var(--line);font-size:.9rem}
.checks li:last-child{border-bottom:0}
.checks .mark{flex:0 0 1.2rem;font-weight:700}
.checks .mark.ok{color:var(--ok)} .checks .mark.ko{color:var(--ko)} .checks .mark.warn{color:var(--warn)}
.checks small{display:block;color:var(--muted)}

.banner{background:var(--warn);color:#101828;border-radius:10px;padding:.6rem .8rem;display:flex;
  gap:.6rem;align-items:center;justify-content:space-between;font-size:.9rem;font-weight:600}

details{margin-top:.6rem;font-size:.9rem}
summary{cursor:pointer;color:var(--accent)}
details ul{padding-left:1.1rem}
details li{margin:.3rem 0}

video{width:100%;border-radius:10px;margin-top:.7rem;background:#000}
footer{padding:1rem 1rem 2rem;text-align:center}