:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel-2: #273449;
  --border: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --danger: #ef4444;
  --ok: #22c55e;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

header.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

header.topbar h1 { font-size: 18px; margin: 0; }
header.topbar nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 18px;
  font-size: 14px;
}
header.topbar nav a:hover, header.topbar nav a.active { color: var(--text); }

main { max-width: 960px; margin: 0 auto; padding: 24px; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}
.card h2 { margin-top: 0; font-size: 16px; }

label { display: block; font-size: 13px; color: var(--muted); margin: 12px 0 4px; }

input[type=text], input[type=password], input[type=number], select, textarea {
  width: 100%;
  padding: 9px 11px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
}
textarea { resize: vertical; min-height: 140px; }
textarea.code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.row { display: flex; gap: 16px; flex-wrap: wrap; }
.row > div { flex: 1; min-width: 180px; }

button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
  background: var(--accent);
  color: white;
  transition: background .15s;
}
button:hover { background: var(--accent-hover); }
button:disabled { opacity: .5; cursor: not-allowed; }
button.secondary { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); }
button.secondary:hover { background: var(--border); }
button.danger { background: var(--danger); }
button.small { padding: 6px 10px; font-size: 12px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; }

.toolbar { display: flex; gap: 10px; align-items: center; margin-top: 16px; flex-wrap: wrap; }

.toggle { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; user-select: none; }
.toggle input { display: none; }
.toggle .track {
  width: 42px; height: 24px; border-radius: 999px;
  background: var(--panel-2); border: 1px solid var(--border); position: relative; transition: background .15s;
}
.toggle .track::after {
  content: ""; position: absolute; top: 2px; left: 2px;
  width: 18px; height: 18px; border-radius: 50%; background: var(--muted); transition: transform .15s, background .15s;
}
.toggle input:checked + .track { background: var(--accent); }
.toggle input:checked + .track::after { transform: translateX(18px); background: white; }

.range-row { display: flex; align-items: center; gap: 12px; }
.range-row input[type=range] { flex: 1; }
.range-row .val { width: 56px; text-align: right; font-variant-numeric: tabular-nums; color: var(--text); }

.muted { color: var(--muted); font-size: 13px; }
.pill { display: inline-block; font-size: 11px; padding: 2px 8px; border-radius: 999px; background: var(--panel-2); border: 1px solid var(--border); color: var(--muted); }
.pill.tel { color: var(--ok); border-color: var(--ok); }

.notice { padding: 12px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; display: none; }
.notice.show { display: block; }
.notice.error { background: rgba(239,68,68,.12); border: 1px solid var(--danger); color: #fecaca; }
.notice.success { background: rgba(34,197,94,.12); border: 1px solid var(--ok); color: #bbf7d0; }

audio { width: 100%; margin-top: 14px; }

.empty { color: var(--muted); font-style: italic; padding: 16px 0; }

.spinner { display:inline-block; width:14px; height:14px; border:2px solid rgba(255,255,255,.4); border-top-color:#fff; border-radius:50%; animation: spin .7s linear infinite; vertical-align:-2px; margin-right:6px; }
@keyframes spin { to { transform: rotate(360deg); } }