/* Minimal sleek UI with dark/light/auto */
:root{
  --bg:#0b1220; --fg:#eaf0ff; --sub:#a9b4cc;
  --card:#121a2c; --line:#22304d; --accent:#3b82f6; --accent-2:#16a34a;
}
:root.light{
  --bg:#f6f9ff; --fg:#0b1220; --sub:#475569;
  --card:#ffffff; --line:#e2e8f0; --accent:#2563eb; --accent-2:#16a34a;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.5 system-ui,Segoe UI,Roboto,Arial}
.appbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:linear-gradient(180deg,rgba(0,0,0,.55),rgba(0,0,0,0));border-bottom:1px solid var(--line)}
.brand{font-weight:800;font-size:18px}
.actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.seg{padding:6px 10px;border:1px solid var(--line);border-radius:999px;display:flex;gap:6px;align-items:center}
.btn{border:1px solid var(--line);background:rgba(59,130,246,.12);color:var(--fg);padding:8px 12px;border-radius:12px;cursor:pointer}
.btn:hover{opacity:0.9}
.btn.primary{background:var(--accent);border-color:var(--accent)}
.btn.ghost{background:transparent}
.row{display:flex;align-items:center;gap:10px}
.row.between{justify-content:space-between}
.wrap{flex-wrap:wrap}
.container{max-width:1000px;margin:18px auto;padding:0 14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px;margin:16px 0;box-shadow:0 12px 28px rgba(0,0,0,.25)}
.grid2{display:grid;gap:12px;grid-template-columns:1fr 1fr}
@media (max-width:780px){.grid2{grid-template-columns:1fr}}
.stack{display:grid;gap:12px}
label{display:block;margin:4px 0 6px}
.input,.select,.textarea{width:100%;background:transparent;color:var(--fg);border:1px solid var(--line);border-radius:14px;padding:10px 12px}
.textarea{min-height:110px}
.hint{color:var(--sub)}
.tiny{color:var(--sub);font-size:12px;margin-top:10px}
fieldset{border:1px dashed var(--line);border-radius:14px;padding:12px}
legend{padding:0 8px;color:var(--sub)}
.footnote{padding:12px;text-align:center;color:var(--sub)}