:root {
  --bg: #0f1420;
  --bg-alt: #161d2e;
  --card: #1b2436;
  --border: #2a3550;
  --text: #e6e9f0;
  --muted: #8b93a7;
  --accent: #4f8cff;
  --accent-hover: #3d75e6;
  --ok: #34c77b;
  --warn: #e6b73d;
  --danger: #e6534f;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

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

.container { max-width: 1100px; margin: 0 auto; padding: 24px; }

.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 24px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}
.topbar .brand { font-weight: 700; font-size: 1.1rem; }
.topbar nav { display: flex; gap: 16px; flex: 1; }
.topbar nav a { color: var(--muted); padding: 6px 0; border-bottom: 2px solid transparent; }
.topbar nav a.active, .topbar nav a:hover { color: var(--text); border-bottom-color: var(--accent); text-decoration: none; }

.auth-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.auth-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: 100%;
  max-width: 380px;
}
.auth-card h1 { margin-top: 0; font-size: 1.4rem; }

.form { display: flex; flex-direction: column; gap: 16px; max-width: 560px; }
.form label { display: flex; flex-direction: column; gap: 6px; font-size: 0.9rem; color: var(--muted); }
#xtream-field { display: flex; flex-direction: column; gap: 16px; }
.form input, .form select, .form textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
}
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--accent); }

button, .btn {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 0.95rem;
  cursor: pointer;
  display: inline-block;
}
button:hover, .btn:hover { background: var(--accent-hover); text-decoration: none; }

.link-btn {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  padding: 0;
  font-size: 0.9rem;
}
.link-btn.danger { color: var(--danger); }
.link-btn:hover { text-decoration: underline; }

.logout-form { margin-left: auto; }

.alert {
  background: rgba(230, 83, 79, 0.15);
  border: 1px solid var(--danger);
  color: #ffb3b0;
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 16px;
}
.alert.success {
  background: rgba(52, 199, 123, 0.15);
  border-color: var(--ok);
  color: #a9f0cb;
}

.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 16px; margin-bottom: 32px; }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 18px; }
.stat-card .stat-value { font-size: 1.8rem; font-weight: 700; }
.stat-card .stat-label { color: var(--muted); font-size: 0.85rem; margin-top: 4px; }
.stat-card.ok .stat-value { color: var(--ok); }
.stat-card.warn .stat-value { color: var(--warn); }
.stat-card.off .stat-value { color: var(--muted); }

.data-table { width: 100%; border-collapse: collapse; margin-top: 8px; }
.data-table th, .data-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.data-table th { color: var(--muted); font-weight: 600; }
.data-table tr:hover { background: rgba(255,255,255,0.02); }

.badge { padding: 2px 10px; border-radius: 999px; font-size: 0.78rem; text-transform: capitalize; }
.badge.active { background: rgba(52, 199, 123, 0.15); color: var(--ok); }
.badge.expired { background: rgba(230, 183, 61, 0.15); color: var(--warn); }
.badge.disabled { background: rgba(139, 147, 167, 0.15); color: var(--muted); }

.link-cell input { width: 320px; max-width: 100%; background: var(--bg); border: 1px solid var(--border); color: var(--muted); border-radius: 6px; padding: 6px 8px; font-size: 0.8rem; }

.row-actions { display: flex; gap: 12px; align-items: center; white-space: nowrap; }

.source-access { border: 1px solid var(--border); border-radius: 8px; padding: 16px; }
.source-access legend { padding: 0 8px; color: var(--muted); }
.checkbox-label { flex: 1; display: flex; align-items: center; gap: 8px; color: var(--text); }

.source-access-block { padding: 14px 0; border-bottom: 1px solid var(--border); }
.source-access-block:last-child { border-bottom: none; }
.source-access-header { display: flex; align-items: center; gap: 16px; }
.source-name { flex: 1; }
.access-mode-select { min-width: 180px; }

.access-picker { margin-top: 10px; }
.picker-hint { margin: 0 0 8px; font-size: 0.85rem; }

.category-checklist { max-height: 200px; overflow-y: auto; border: 1px solid var(--border); border-radius: 8px; padding: 8px 12px; background: var(--bg); display: flex; flex-direction: column; gap: 4px; margin-bottom: 10px; }
.category-row { display: flex; align-items: center; gap: 8px; padding: 3px 0; font-size: 0.9rem; color: var(--text); }

.load-channels-btn { margin-bottom: 8px; }

.channel-filter { width: 100%; margin-bottom: 8px; }

.channel-groups { max-height: 360px; overflow-y: auto; border: 1px solid var(--border); border-radius: 8px; padding: 4px 10px; background: var(--bg); }
.channel-groups details { border-bottom: 1px solid var(--border); padding: 6px 0; }
.channel-groups details:last-child { border-bottom: none; }
.channel-groups summary { cursor: pointer; list-style: none; }
.channel-groups summary::-webkit-details-marker { display: none; }
.channel-groups summary .checkbox-label { display: inline-flex; }

.channel-list { display: flex; flex-direction: column; gap: 2px; padding: 6px 0 4px 24px; }
.channel-row { display: flex; align-items: center; gap: 8px; padding: 3px 0; font-size: 0.88rem; color: var(--text); }
.channel-row:has(input:disabled) { color: var(--muted); }
.channel-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.input-with-btn { display: flex; gap: 8px; }
.input-with-btn input { flex: 1; }

.muted { color: var(--muted); font-weight: 400; }

@media (max-width: 700px) {
  .topbar { flex-wrap: wrap; }
  .link-cell input { width: 200px; }
}