:root {
  --bg: #0f1115;
  --card: #171a21;
  --text: #f2f4f8;
  --muted: #b7bcc7;
  --line: #262b36;
  --btn: #232838;
  --primary: #dc3545;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 600px at 20% 0%, #1a1f2d 0%, var(--bg) 55%);
}

.bg { min-height: 100%; }

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 16px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(15,17,21,0.75);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

.brand { font-weight: 700; letter-spacing: 0.2px; }

.card {
  background: rgba(23,26,33,0.92);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.25);
  margin-bottom: 14px;
}

h1 { font-size: 20px; margin: 0 0 12px; }
h2 { font-size: 16px; margin: 12px 0 10px; color: var(--muted); }

.form label { display:block; margin: 10px 0 6px; color: var(--muted); font-size: 13px; }

input, select, textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #0f121a;
  color: var(--text);
  padding: 10px 12px;
  outline: none;
}

input:focus, select:focus, textarea:focus { border-color: rgba(220,53,69,0.6); }

.row {
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 12px;
}

.grid2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 720px) {
  .grid2 { grid-template-columns: 1fr 1fr; }
  h1 { font-size: 22px; }
}

.btn {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--btn);
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn.primary {
  background: linear-gradient(135deg, rgba(220,53,69,1) 0%, rgba(220,53,69,0.7) 100%);
  border-color: rgba(220,53,69,0.5);
}

.topbar-actions { display:flex; gap: 8px; flex-wrap: wrap; }

.alert {
  border: 1px solid rgba(220,53,69,0.4);
  background: rgba(220,53,69,0.12);
  padding: 10px 12px;
  border-radius: 12px;
  margin-bottom: 12px;
}

.hint { color: var(--muted); font-size: 13px; }
.hidden { display: none !important; }
.sr-only { position:absolute; left:-9999px; }

.table-wrap { overflow:auto; border-radius: 12px; border: 1px solid var(--line); }
.table { width:100%; border-collapse: collapse; min-width: 420px; }
.table th, .table td { padding: 10px 10px; border-bottom: 1px solid var(--line); text-align: left; }
.table th { color: var(--muted); font-weight: 600; background: rgba(15,18,26,0.6); }
.table tr:last-child td { border-bottom: none; }

.result { margin-top: 14px; }
.traffic {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 900px) {
  .traffic { grid-template-columns: repeat(3, 1fr); }
}
.light {
  border-radius: 16px;
  border: 1px solid var(--line);
  padding: 12px;
  background: #0f121a;
}
.light-title { font-weight: 800; margin-bottom: 8px; }
.light-body { color: var(--text); line-height: 1.35; font-size: 14px; }

.light.red { outline: 2px solid rgba(255, 74, 74, 0.35); }
.light.yellow { outline: 2px solid rgba(255, 210, 77, 0.28); }
.light.green { outline: 2px solid rgba(98, 255, 147, 0.22); }

.list { margin-top: 12px; }
textarea { resize: vertical; }