:root{
  --ink:#111827;
  --muted:#64748b;
  --line:#d7dde8;
  --soft:#f8fafc;
  --panel:#ffffff;
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --teal:#0f766e;
  --bad:#be123c;
  --warn:#b45309;
  --good:#15803d;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:Arial,Tahoma,sans-serif;color:var(--ink);background:#eef2f7}
body{font-size:15px}
a{color:inherit}
.shell{min-height:100vh;display:grid;grid-template-rows:auto 1fr}
.topbar{height:58px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 18px;position:sticky;top:0;z-index:3}
.brand{display:flex;align-items:center;gap:10px;font-weight:900}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--teal));display:grid;place-items:center;color:#fff;font-weight:900}
.top-actions{display:flex;gap:8px;align-items:center}
.container{width:min(1120px,100%);margin:0 auto;padding:18px}
.grid{display:grid;gap:14px}
.grid-2{grid-template-columns:1fr 1fr}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:0 16px 38px rgba(15,23,42,.06)}
.card-pad{padding:16px}
.hero{background:linear-gradient(135deg,#0f172a,#2563eb);color:#fff;padding:22px;border-radius:16px;margin-bottom:14px}
.hero h1{margin:0 0 6px;font-size:24px}
.hero p{margin:0;color:rgba(255,255,255,.82);line-height:1.6}
.field{display:grid;gap:6px}
.field label{font-weight:800;color:#334155;font-size:13px}
.input,select{width:100%;height:44px;border:1px solid var(--line);border-radius:11px;padding:0 12px;background:#fff;color:var(--ink);font-size:15px}
.btn{height:42px;border:0;border-radius:11px;padding:0 14px;background:var(--primary);color:#fff;font-weight:900;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn:hover{background:var(--primary-dark)}
.btn-soft{background:#e2e8f0;color:#0f172a}
.btn-soft:hover{background:#cbd5e1}
.btn-bad{background:#e11d48}
.btn-bad:hover{background:#be123c}
.btn-sm{height:34px;border-radius:9px;font-size:13px}
.btn:disabled{opacity:.65;cursor:wait}
.muted{color:var(--muted)}
.small{font-size:13px}
.alert{display:none;border:1px solid #fecdd3;background:#fff1f2;color:var(--bad);border-radius:12px;padding:12px 14px}
.alert.show{display:block}
.pill{display:inline-flex;align-items:center;border-radius:999px;padding:4px 10px;background:#e2e8f0;color:#334155;font-size:12px;font-weight:800}
.pill-good{background:#dcfce7;color:#166534}
.pill-warn{background:#fef3c7;color:#92400e}
.pill-bad{background:#ffe4e6;color:#9f1239}
.login-page{min-height:100vh;display:grid;place-items:center;padding:18px;background:linear-gradient(180deg,#dbeafe,#f8fafc)}
.login-card{width:min(420px,100%);background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 24px 70px rgba(15,23,42,.12);overflow:hidden}
.login-head{padding:22px;background:linear-gradient(135deg,#2563eb,#0f766e);color:#fff}
.login-head h1{margin:0;font-size:24px}
.login-body{padding:20px;display:grid;gap:14px}
.video-box{background:#020617;border-radius:14px;overflow:hidden;border:1px solid #1e293b}
video{width:100%;display:block;max-height:68vh;background:#020617}
.player-tools{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:12px}
.timeline{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;margin-top:12px}
.timeline input{width:100%}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:12px}
table{width:100%;border-collapse:collapse;background:#fff}
th,td{border-bottom:1px solid var(--line);padding:10px;text-align:left;vertical-align:top}
th{background:#f8fafc;color:#334155;font-size:13px}
tr:last-child td{border-bottom:0}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.tab{height:38px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:0 14px;font-weight:800;display:inline-flex;align-items:center;cursor:pointer}
.tab.active{background:#1e293b;color:#fff;border-color:#1e293b}
.modal{position:fixed;inset:0;background:rgba(15,23,42,.54);display:none;align-items:center;justify-content:center;padding:16px;z-index:10}
.modal.show{display:flex}
.modal-card{width:min(680px,100%);max-height:92vh;overflow:auto;background:#fff;border-radius:16px;border:1px solid var(--line)}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--line)}
.modal-body{padding:16px;display:grid;gap:12px}
.modal-foot{display:flex;gap:8px;justify-content:flex-end;padding:16px;border-top:1px solid var(--line)}
.camera-form{border:1px solid var(--line);border-radius:12px;padding:12px;display:grid;gap:12px;background:#f8fafc}
.check-row{min-height:44px;display:flex;align-items:center;gap:8px;font-weight:800;color:#334155}
.form-actions{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
@media(max-width:720px){
  .topbar{height:auto;min-height:58px;align-items:flex-start;gap:10px;flex-direction:column;padding:12px}
  .top-actions{width:100%;justify-content:space-between;flex-wrap:wrap}
  .container{padding:12px}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .hero h1{font-size:21px}
  .card-pad{padding:13px}
  .timeline{grid-template-columns:1fr}
  th{display:none}
  tr{display:block;border-bottom:1px solid var(--line);padding:8px}
  td{display:grid;grid-template-columns:120px 1fr;border:0;padding:6px 4px}
  td::before{content:attr(data-label);font-weight:800;color:#64748b}
}