:root{
  --bg:#f6f7fb;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#475569;
  --line:#e5e7eb;
  --accent:#111827;
  --ok:#16a34a;
  --warn:#f59e0b;
  --info:#2563eb;
  --radius:18px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Arial;
  background:var(--bg);
  color:var(--text);
}
.wrap{max-width:1100px;margin:0 auto;padding:18px}
a{color:inherit}

.top{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.brand{font-weight:900;font-size:18px}
.pill{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:999px;
  padding:8px 12px;
  font-size:14px;
  color:var(--muted);
}

.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:12px;
  box-shadow:0 1px 2px rgba(0,0,0,.04);
}

.grid{
  display:grid;
  grid-template-columns:repeat(4, minmax(0,1fr));
  gap:12px;
  margin-top:12px;
}
@media (max-width:700px){ .grid{grid-template-columns:repeat(2, minmax(0,1fr));} }

.door h3{margin:0 0 6px 0;font-size:16px}
.status{font-size:13px;color:var(--muted);margin:6px 0 10px}
.price{font-weight:900;color:var(--text)}
.badge{
  display:inline-block;
  padding:4px 8px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  font-size:12px;
}
.b-empty{opacity:.7}
.b-active{border-color:color-mix(in srgb, var(--ok) 45%, var(--line));}
.b-ready{border-color:color-mix(in srgb, var(--info) 55%, var(--line));}

.btn{
  width:100%;
  border:0;
  border-radius:14px;
  padding:10px 12px;
  font-weight:900;
  cursor:pointer;
}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn-primary{background:var(--accent);color:#fff}
.btn-ghost{background:#fff;border:1px solid var(--accent);color:var(--accent)}

input,select{
  width:100%;
  padding:10px 12px;
  border-radius:14px;
  border:1px solid var(--line);
  font-size:16px;
  outline:none;
}
label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
.msg{margin-top:10px;font-size:14px}
.hint{font-size:12px;color:var(--muted);margin-top:6px}
hr.sep{border:none;border-top:1px solid var(--line);margin:12px 0}

.row{display:flex;gap:12px;flex-wrap:wrap;margin-top:14px}
.row>.card{flex:1;min-width:240px}

.kbd{
  display:inline-block;
  border:1px solid var(--line);
  border-bottom-width:3px;
  border-radius:10px;
  padding:4px 8px;
  background:#fff;
  font-weight:900;
  font-size:12px;
  color:var(--text);
}
.smalllink{text-decoration:underline;cursor:pointer;opacity:.9}

.qrwrap{
  display:flex;
  align-items:center;
  justify-content:center;
  padding:12px;
  border-radius:16px;
  background:#fff;
}

/* Modal */
.modal{position:fixed;inset:0;display:none}
.modal[aria-hidden="false"]{display:block}
.modal__backdrop{position:absolute;inset:0;background:rgba(0,0,0,.45)}
.modal__panel{
  position:relative;
  width:min(520px, 92vw);
  margin:8vh auto 0;
  background:#fff;
  border-radius:20px;
  padding:12px;
  border:1px solid var(--line);
  box-shadow:0 20px 60px rgba(0,0,0,.25);
}
.modal__top{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.modal__title{font-weight:900;font-size:18px}
.modal__subtitle{font-size:13px;color:var(--muted);margin-top:2px}
.iconbtn{
  border:1px solid var(--line);
  background:#fff;
  border-radius:12px;
  width:40px;height:40px;
  cursor:pointer;
  font-weight:900;
}
.row2{display:flex;gap:10px;margin-top:10px}
.row2 .btn{width:auto;flex:1}

/* Admin shell */
.admin-shell{background:#0b1020;color:#fff;min-height:100vh}
.admin-shell .wrap{max-width:1200px}
.admin-shell .pill{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  color:rgba(255,255,255,.8);
}
.admin-shell .card{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  box-shadow:none;
}
.admin-shell input,.admin-shell select{
  background:rgba(0,0,0,.25);
  border:1px solid rgba(255,255,255,.18);
  color:#fff;
}
.admin-shell label{color:rgba(255,255,255,.7)}
.admin-shell .btn-primary{background:#fff;color:#111}
.admin-shell .btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.45);color:#fff}
.admin-shell .hint{color:rgba(255,255,255,.7)}
.admin-shell .smalllink{color:#fff}