:root {
  --bg: #0f1216;
  --bg-elevated: #171b21;
  --bg-card: #1c2129;
  --border: #2a303a;
  --text: #e6e9ef;
  --text-muted: #9aa4b2;
  --accent: #4f8cff;
  --accent-hover: #6ba0ff;
  --danger: #ef5b5b;
  --danger-hover: #ff7373;
  --success: #3ecf8e;
  --warning: #f2b84b;
  --radius: 10px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--bg-elevated);
  border-right: 1px solid var(--border);
  padding: 20px 12px;
}
.sidebar h1 {
  font-size: 15px;
  padding: 0 10px 16px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}
.sidebar nav a {
  display: block;
  padding: 10px 12px;
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 2px;
}
.sidebar nav a:hover, .sidebar nav a.active {
  background: var(--bg-card);
  color: var(--text);
}
.sidebar .logout { margin-top: 24px; }

.content { flex: 1; padding: 28px 32px; max-width: 1200px; }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.stat { text-align: center; }
.stat .value { font-size: 28px; font-weight: 600; }
.stat .label { color: var(--text-muted); font-size: 13px; margin-top: 4px; }

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(--text-muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
tr:hover td { background: rgba(255,255,255,0.02); }

.badge {
  display: inline-block; padding: 3px 9px; border-radius: 999px;
  font-size: 12px; font-weight: 500;
}
.badge-ok { background: rgba(62,207,142,.15); color: var(--success); }
.badge-warn { background: rgba(242,184,75,.15); color: var(--warning); }
.badge-danger { background: rgba(239,91,91,.15); color: var(--danger); }
.badge-muted { background: rgba(154,164,178,.15); color: var(--text-muted); }

input[type=text], input[type=password], input[type=number], input[type=tel], select, textarea {
  width: 100%; padding: 9px 12px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg-elevated);
  color: var(--text); font-size: 14px; font-family: var(--font);
}
textarea { resize: vertical; min-height: 70px; }
label { display: block; font-size: 13px; color: var(--text-muted); margin-bottom: 6px; margin-top: 14px; }
label:first-child { margin-top: 0; }

.btn {
  display: inline-block; padding: 9px 16px; border-radius: 8px; border: none;
  background: var(--accent); color: white; font-size: 14px; cursor: pointer;
  font-family: var(--font);
}
.btn:hover { background: var(--accent-hover); }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: var(--danger-hover); }
.btn-secondary { background: var(--bg-elevated); border: 1px solid var(--border); color: var(--text); }

.form-row { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.form-row > * { flex: 1; min-width: 160px; }

.msg { padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.msg-ok { background: rgba(62,207,142,.12); color: var(--success); border: 1px solid rgba(62,207,142,.3); }
.msg-error { background: rgba(239,91,91,.12); color: var(--danger); border: 1px solid rgba(239,91,91,.3); }

.auth-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.auth-box { width: 380px; }
.auth-box h1 { font-size: 18px; margin-bottom: 20px; text-align: center; }

.muted { color: var(--text-muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }

audio { width: 100%; margin: 10px 0; }

pre.log {
  background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 8px;
  padding: 14px; font-size: 12px; overflow-x: auto; max-height: 500px; overflow-y: auto;
  white-space: pre-wrap; word-break: break-word;
}

.pagination { display: flex; gap: 6px; margin-top: 16px; }
.pagination a, .pagination span { padding: 6px 12px; border-radius: 6px; border: 1px solid var(--border); font-size: 13px; }
.pagination .current { background: var(--accent); border-color: var(--accent); }

@media (max-width: 800px) {
  .layout { flex-direction: column; }
  .sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border); }
  .sidebar nav { display: flex; overflow-x: auto; gap: 4px; }
  .content { padding: 16px; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
}