:root{
  --bg:#071226;
  --panel:#13233d;
  --panel-2:#1b2d4b;
  --line:#2f466f;
  --text:#eef4ff;
  --muted:#9fb4d8;
  --accent:#5aa2ff;
  --good:#3ddc97;
  --warn:#fbbf24;
  --danger:#fb7185;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family:Segoe UI,Arial,sans-serif;
  background:linear-gradient(180deg,#071226 0%,#081933 100%);
  color:var(--text);
}

.header{
  padding:20px 24px 14px 24px;
  border-bottom:1px solid rgba(255,255,255,.06);
  background:rgba(0,0,0,.12);
  position:sticky;
  top:0;
  z-index:10;
  backdrop-filter:blur(6px);
}

.title{
  font-size:34px;
  font-weight:700;
  margin:0 0 4px 0;
}

.subtitle{
  color:var(--muted);
  margin:0;
  font-size:14px;
}

.shell{
  display:grid;
  grid-template-columns:280px 1fr;
  min-height:calc(100vh - 86px);
}

.sidebar{
  border-right:1px solid rgba(255,255,255,.06);
  padding:18px;
  background:rgba(0,0,0,.08);
}

.nav-btn{
  width:100%;
  text-align:left;
  background:var(--panel);
  color:var(--text);
  border:1px solid var(--line);
  border-radius:12px;
  padding:12px 14px;
  margin-bottom:10px;
  cursor:pointer;
  font-size:14px;
}

.nav-btn.active{
  border-color:var(--accent);
  box-shadow:0 0 0 1px rgba(90,162,255,.35) inset;
}

.main{
  padding:20px;
}

.hidden{display:none !important}

.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:16px;
}

.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:16px;
  padding:16px;
  box-shadow:0 10px 24px rgba(0,0,0,.18);
}

.card h3{
  margin:0 0 10px 0;
  font-size:18px;
}

.label{
  color:var(--muted);
  font-size:12px;
  margin-bottom:8px;
}

.value{
  font-size:34px;
  font-weight:700;
}

.row{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:12px;
}

.col-12{grid-column:span 12}
.col-8{grid-column:span 8}
.col-6{grid-column:span 6}
.col-4{grid-column:span 4}
.col-3{grid-column:span 3}

@media (max-width: 1100px){
  .shell{grid-template-columns:1fr}
  .sidebar{border-right:none;border-bottom:1px solid rgba(255,255,255,.06)}
}

@media (max-width: 760px){
  .col-8,.col-6,.col-4,.col-3{grid-column:span 12}
}

input, select, textarea, button{
  font:inherit;
}

.input, .select, .textarea{
  width:100%;
  padding:10px 12px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--panel-2);
  color:var(--text);
}

.textarea{
  min-height:90px;
  resize:vertical;
}

.btn{
  background:var(--accent);
  color:white;
  border:none;
  border-radius:10px;
  padding:10px 14px;
  cursor:pointer;
  font-weight:600;
}

.btn.secondary{
  background:#30486f;
}

.btn.warn{
  background:#8a6a13;
}

.section-title{
  margin:0 0 14px 0;
  font-size:24px;
}

.section-sub{
  color:var(--muted);
  margin:0 0 18px 0;
  font-size:14px;
}

.table-wrap{
  overflow:auto;
  border:1px solid var(--line);
  border-radius:14px;
}

table{
  width:100%;
  border-collapse:collapse;
  background:var(--panel);
}

th, td{
  text-align:left;
  padding:12px;
  border-bottom:1px solid rgba(255,255,255,.06);
  font-size:14px;
  vertical-align:top;
}

th{
  color:var(--muted);
  font-weight:600;
  background:#172844;
  position:sticky;
  top:0;
}

.status{
  display:inline-block;
  padding:4px 8px;
  border-radius:999px;
  font-size:12px;
  border:1px solid var(--line);
  background:#1d3150;
}

.status.open{color:#bfdbfe}
.status.scheduled{color:#fde68a}
.status.closed{color:#86efac}
.status.default{color:#e5e7eb}

.notice{
  margin-top:12px;
  padding:12px;
  border-radius:12px;
  background:#132846;
  border:1px solid var(--line);
  color:var(--muted);
}

.flex{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  align-items:center;
}

.spacer{height:16px}

.kv{
  display:grid;
  grid-template-columns:160px 1fr;
  gap:8px 14px;
  font-size:14px;
}

.kv .k{color:var(--muted)}
.panel-title{
  font-size:16px;
  margin:0 0 12px 0;
}

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