:root{
  --bg:#f5f7fb;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --line:#e5e7eb;
  --black:#0b0b0f;
  --btn:#111827;
  --btnText:#fff;
  --danger:#ef4444;
  --radius:14px;
}

*{ box-sizing:border-box; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background:var(--bg);
  color:var(--text);
}

.topbar{
  background:var(--black);
  color:#fff;
  position:sticky;
  top:0;
  z-index:10;
}
.topbar__inner{
  max-width:1100px;
  margin:0 auto;
  padding:14px 16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.topbar__brand{ font-weight:700; letter-spacing:.3px; }
.topbar__nav a{
  color:#d1d5db;
  text-decoration:none;
  margin-left:14px;
  padding:8px 10px;
  border-radius:10px;
  display:inline-block;
}
.topbar__nav a:hover{ background:rgba(255,255,255,.08); color:#fff; }
.topbar__nav a.is-active{ background:rgba(255,255,255,.12); color:#fff; }
.topbar__nav a.danger:hover{ background:rgba(239,68,68,.18); color:#fff; }

.container{
  max-width:1100px;
  margin:22px auto 56px;
  padding:0 16px;
}

.h1{
  font-size:26px;
  font-weight:750;
  margin:0 0 16px;
}

.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:0 6px 18px rgba(15,23,42,.04);
}

.card.pad{ padding:18px; }

.filters{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  gap:12px;
}

.field label{
  display:block;
  font-size:12px;
  color:var(--muted);
  margin:0 0 6px;
}
.field input, .field select{
  height:38px;
  min-width:160px;
  padding:8px 10px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  outline:none;
}
.field input:focus, .field select:focus{
  border-color:#c7d2fe;
  box-shadow:0 0 0 4px rgba(99,102,241,.10);
}

.btn{
  height:38px;
  padding:0 14px;
  border:0;
  border-radius:12px;
  background:var(--btn);
  color:var(--btnText);
  cursor:pointer;
  font-weight:650;
}
.btn:hover{ opacity:.92; }

.grid-cards{
  margin-top:14px;
  display:grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap:12px;
}
@media (max-width: 980px){
  .grid-cards{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px){
  .grid-cards{ grid-template-columns: 1fr; }
}

.stat{
  padding:16px;
}
.stat__label{
  color:var(--muted);
  font-size:13px;
  margin-bottom:8px;
}
.stat__value{
  font-size:28px;
  font-weight:800;
  letter-spacing:.2px;
}
.stat__sub{
  margin-top:8px;
  color:var(--muted);
  font-size:12px;
}

.table-wrap{ margin-top:14px; overflow:auto; }
table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  min-width:720px;
}
thead th{
  text-align:left;
  font-size:13px;
  color:#111827;
  padding:12px 12px;
  border-bottom:1px solid var(--line);
  background:#fafafa;
}
tbody td{
  padding:12px 12px;
  border-bottom:1px solid var(--line);
  font-size:14px;
}
tbody tr:hover td{ background:#fcfcff; }

.notice{
  padding:12px 14px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  margin:14px 0;
  color:var(--muted);
}

.form-card{
  max-width:520px;
  margin:24px auto;
}

.alert{
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  margin-bottom:12px;
}
.alert.error{ border-color:rgba(239,68,68,.35); background:rgba(239,68,68,.06); color:#991b1b; }
.alert.ok{ border-color:rgba(34,197,94,.35); background:rgba(34,197,94,.06); color:#065f46; }

.small{
  font-size:12px;
  color:var(--muted);
}