/* Theme tokens — dark (default), medium, light */
:root,
html[data-theme="dark"] {
  --bg: #0b1220;
  --bg-elevated: #111827;
  --surface: #1a2332;
  --surface-2: #243044;
  --border: #334155;
  --text: #e8eef6;
  --muted: #94a3b8;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #38bdf8;
  --sidebar-bg: rgba(15, 23, 42, 0.95);
  --panel-header-bg: rgba(0, 0, 0, 0.15);
  --nav-active-bg: rgba(59, 130, 246, 0.15);
  --nav-active-text: #93c5fd;
  --nav-active-border: rgba(59, 130, 246, 0.35);
  --glow-a: #1e3a5f;
  --glow-b: #1e293b;
  --flash-bg: rgba(34, 197, 94, 0.12);
  --flash-border: rgba(34, 197, 94, 0.35);
  --flash-text: #bbf7d0;
  --tag-success-bg: rgba(34, 197, 94, 0.15);
  --tag-success-text: #86efac;
  --tag-danger-bg: rgba(239, 68, 68, 0.15);
  --tag-danger-text: #fca5a5;
  --tag-warning-bg: rgba(245, 158, 11, 0.15);
  --tag-warning-text: #fcd34d;
  --tag-info-bg: rgba(56, 189, 248, 0.15);
  --tag-info-text: #7dd3fc;
  --radius: 10px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "Cascadia Code", "Consolas", ui-monospace, monospace;
}

html[data-theme="medium"] {
  --bg: #1e293b;
  --bg-elevated: #273549;
  --surface: #334155;
  --surface-2: #3f4f66;
  --border: #64748b;
  --text: #f1f5f9;
  --muted: #cbd5e1;
  --primary: #60a5fa;
  --primary-hover: #3b82f6;
  --success: #4ade80;
  --warning: #fbbf24;
  --danger: #f87171;
  --info: #67e8f9;
  --sidebar-bg: #273549;
  --panel-header-bg: rgba(15, 23, 42, 0.25);
  --nav-active-bg: rgba(96, 165, 250, 0.2);
  --nav-active-text: #bfdbfe;
  --nav-active-border: rgba(96, 165, 250, 0.4);
  --glow-a: #334155;
  --glow-b: #1e293b;
  --flash-bg: rgba(74, 222, 128, 0.15);
  --flash-border: rgba(74, 222, 128, 0.4);
  --flash-text: #dcfce7;
  --tag-success-bg: rgba(74, 222, 128, 0.18);
  --tag-success-text: #bbf7d0;
  --tag-danger-bg: rgba(248, 113, 113, 0.18);
  --tag-danger-text: #fecaca;
  --tag-warning-bg: rgba(251, 191, 36, 0.18);
  --tag-warning-text: #fde68a;
  --tag-info-bg: rgba(103, 232, 249, 0.18);
  --tag-info-text: #a5f3fc;
  --shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
}

html[data-theme="light"] {
  --bg: #f1f5f9;
  --bg-elevated: #ffffff;
  --surface: #ffffff;
  --surface-2: #e2e8f0;
  --border: #cbd5e1;
  --text: #0f172a;
  --muted: #64748b;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --success: #16a34a;
  --warning: #d97706;
  --danger: #dc2626;
  --info: #0284c7;
  --sidebar-bg: #ffffff;
  --panel-header-bg: #f8fafc;
  --nav-active-bg: rgba(37, 99, 235, 0.1);
  --nav-active-text: #1d4ed8;
  --nav-active-border: rgba(37, 99, 235, 0.35);
  --glow-a: #dbeafe;
  --glow-b: #e2e8f0;
  --flash-bg: rgba(22, 163, 74, 0.1);
  --flash-border: rgba(22, 163, 74, 0.35);
  --flash-text: #166534;
  --tag-success-bg: rgba(22, 163, 74, 0.12);
  --tag-success-text: #15803d;
  --tag-danger-bg: rgba(220, 38, 38, 0.1);
  --tag-danger-text: #b91c1c;
  --tag-warning-bg: rgba(217, 119, 6, 0.12);
  --tag-warning-text: #b45309;
  --tag-info-bg: rgba(2, 132, 199, 0.12);
  --tag-info-text: #0369a1;
  --shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: radial-gradient(1200px 600px at 10% -10%, var(--glow-a) 0%, transparent 50%),
              radial-gradient(900px 500px at 100% 0%, var(--glow-b) 0%, transparent 45%),
              var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.45;
  transition: background-color 0.2s ease, color 0.15s ease;
}

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

.app-shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  padding: 1.25rem 1rem;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.brand {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  padding: 0.25rem 0.5rem 1.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: linear-gradient(135deg, #3b82f6, #06b6d4);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 0.85rem;
  color: white;
}

.brand h1 {
  font-size: 0.95rem;
  margin: 0;
  font-weight: 700;
}
.brand p {
  margin: 0;
  font-size: 0.72rem;
  color: var(--muted);
}

.nav a {
  display: block;
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  color: var(--muted);
  margin-bottom: 0.25rem;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
}
.nav a:hover { background: var(--surface); color: var(--text); text-decoration: none; }
.nav a.active {
  background: var(--nav-active-bg);
  color: var(--nav-active-text);
  border: 1px solid var(--nav-active-border);
}

.main {
  padding: 1.5rem 1.75rem 2.5rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.topbar h2 {
  margin: 0;
  font-size: 1.45rem;
  letter-spacing: -0.02em;
}
.topbar .subtitle {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.badge-node {
  font-size: 0.75rem;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  font-family: var(--mono);
}

.grid-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
  margin-bottom: 1.25rem;
}

.stat-card {
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-elevated) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow);
}
.stat-card .label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 700;
}
.stat-card .value {
  font-size: 1.75rem;
  font-weight: 750;
  margin-top: 0.25rem;
}
.stat-card.success .value { color: var(--success); }
.stat-card.danger .value { color: var(--danger); }
.stat-card.warning .value { color: var(--warning); }
.stat-card.info .value { color: var(--info); }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 1.1rem;
  overflow: hidden;
}
.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel-header-bg);
}
.panel-header h3 {
  margin: 0;
  font-size: 0.95rem;
}
.panel-body { padding: 1rem 1.1rem; }

.grid-2 {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1.1rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
th, td {
  text-align: left;
  padding: 0.65rem 0.5rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
th {
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
tr:last-child td { border-bottom: none; }

.tag {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  border: 1px solid transparent;
}
.tag.success { background: var(--tag-success-bg); color: var(--tag-success-text); border-color: transparent; }
.tag.danger { background: var(--tag-danger-bg); color: var(--tag-danger-text); border-color: transparent; }
.tag.warning { background: var(--tag-warning-bg); color: var(--tag-warning-text); border-color: transparent; }
.tag.info { background: var(--tag-info-bg); color: var(--tag-info-text); border-color: transparent; }
.tag.muted { background: var(--surface-2); color: var(--muted); border-color: var(--border); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0.5rem 0.85rem;
  font-weight: 650;
  font-size: 0.85rem;
  cursor: pointer;
  background: var(--primary);
  color: white;
  text-decoration: none;
}
.btn:hover { background: var(--primary-hover); text-decoration: none; color: white; }
.btn.secondary {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn.secondary:hover { background: var(--surface-2); color: var(--text); }
.btn.danger { background: var(--danger); }
.btn.warning { background: var(--warning); color: #1a1a1a; }
.btn.warning:hover { filter: brightness(1.05); color: #1a1a1a; }
.btn.sm { padding: 0.3rem 0.6rem; font-size: 0.78rem; }

/* Cron English description (client-side) */
.cron-field { display: flex; flex-direction: column; gap: 0.35rem; }
.cron-desc {
  font-size: 0.82rem;
  line-height: 1.35;
  padding: 0.45rem 0.65rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--muted);
}
.cron-desc-ok {
  color: var(--text);
  border-color: color-mix(in srgb, var(--primary) 35%, var(--border));
  background: color-mix(in srgb, var(--primary) 8%, var(--surface));
}
.cron-desc-bad {
  color: var(--tag-danger-text);
  border-color: color-mix(in srgb, var(--danger) 40%, var(--border));
  background: var(--tag-danger-bg);
}
.cron-desc-inline {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.78rem;
  font-family: inherit;
  color: var(--muted);
  max-width: 28rem;
  white-space: normal;
}
.cron-desc-inline.cron-desc-ok { color: var(--text); }
.cron-desc-inline.cron-desc-bad { color: var(--tag-danger-text); }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}
.form-grid .full { grid-column: 1 / -1; }
label {
  display: block;
  font-size: 0.78rem;
  font-weight: 650;
  color: var(--muted);
  margin-bottom: 0.3rem;
}
input, select, textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 0.55rem 0.7rem;
  font: inherit;
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid rgba(59,130,246,0.45);
  border-color: var(--primary);
}

.flash {
  background: var(--flash-bg);
  border: 1px solid var(--flash-border);
  color: var(--flash-text);
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}

/* Theme toggle */
.theme-toggle {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.theme-toggle-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 0.45rem;
}
.theme-toggle-group {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.3rem;
}
.theme-toggle-group button {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--muted);
  border-radius: 6px;
  padding: 0.35rem 0.25rem;
  font-size: 0.72rem;
  font-weight: 650;
  cursor: pointer;
  font-family: inherit;
}
.theme-toggle-group button:hover {
  color: var(--text);
  background: var(--surface-2);
}
.theme-toggle-group button.active {
  background: var(--nav-active-bg);
  color: var(--nav-active-text);
  border-color: var(--nav-active-border);
}
.theme-toggle-login {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 20;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.5rem 0.65rem;
  box-shadow: var(--shadow);
}
.theme-toggle-login .theme-toggle-label { margin-bottom: 0.35rem; }

.mono {
  font-family: var(--mono);
  font-size: 0.82rem;
  white-space: pre-wrap;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem;
}

.empty {
  color: var(--muted);
  font-size: 0.9rem;
  padding: 0.5rem 0;
}

/* Search / filter toolbar */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: flex-end;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}
.filter-field {
  min-width: 120px;
}
.filter-field.grow {
  flex: 1 1 220px;
  min-width: 180px;
}
.filter-actions {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  padding-bottom: 0.05rem;
}

/* Pagination */
.pager {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
}
.pager-meta {
  color: var(--muted);
  font-size: 0.82rem;
}
.pager-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}
.pager-ellipsis {
  color: var(--muted);
  padding: 0 0.25rem;
  font-size: 0.85rem;
}
.btn.disabled,
a.btn.disabled {
  opacity: 0.45;
  pointer-events: none;
  cursor: not-allowed;
}

@media (max-width: 1100px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: relative; height: auto; }
  .grid-stats { grid-template-columns: 1fr 1fr; }
  .grid-2, .form-grid { grid-template-columns: 1fr; }
  .filter-bar { flex-direction: column; align-items: stretch; }
  .filter-actions { justify-content: flex-start; }
}