:root {
  --bg: #0e1116;
  --bg-elev: #161b22;
  --bg-elev-2: #1d242e;
  --border: #2a3340;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --accent: #14b8a6;
  --accent-hover: #0d9488;
  --danger: #ef4444;
  --danger-hover: #b91c1c;
  --success: #22c55e;
  --warning: #f59e0b;
  --radius: 10px;
  --radius-sm: 6px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Inter, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

.muted { color: var(--text-muted); }
.mono { font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.brand-large { font-size: 18px; }

.brand-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #0d9488);
  box-shadow: 0 0 12px rgba(20, 184, 166, 0.55);
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav a {
  color: var(--text-muted);
  font-weight: 500;
}
.nav a:hover { color: var(--text); text-decoration: none; }

.logout-form { display: inline; margin: 0; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 28px 80px;
}

.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.page-head h1 { margin: 0 0 4px; font-size: 22px; }
.page-head p { margin: 0; }

h2 { font-size: 14px; text-transform: uppercase; letter-spacing: 0.6px; color: var(--text-muted); margin: 0 0 14px; }

/* ===== Forms ===== */

label {
  display: block;
  margin: 14px 0 6px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

input[type="text"],
input[type="url"],
input[type="password"],
input[type="email"],
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 120ms ease, box-shadow 120ms ease;
}

textarea { resize: vertical; min-height: 120px; font-family: 'JetBrains Mono', ui-monospace, monospace; }

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.22);
}

input[type="file"] {
  width: 100%;
  padding: 8px;
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
}

input[type="color"] {
  width: 60px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  cursor: pointer;
}

.color-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.color-row input[type="text"] { width: 140px; font-family: 'JetBrains Mono', monospace; text-transform: uppercase; }

button {
  cursor: pointer;
  font-family: inherit;
}

.btn-primary {
  display: inline-block;
  padding: 10px 18px;
  background: var(--accent);
  color: white;
  border: 0;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  transition: background 120ms ease, transform 100ms ease;
}
.btn-primary:hover { background: var(--accent-hover); text-decoration: none; }
.btn-primary:active { transform: translateY(1px); }

.btn-block { width: 100%; margin-top: 22px; padding: 12px; }

.btn-ghost {
  display: inline-block;
  padding: 8px 14px;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  text-decoration: none;
  transition: all 120ms ease;
}
.btn-ghost:hover { color: var(--text); background: var(--bg-elev-2); text-decoration: none; }

.btn-danger {
  padding: 6px 12px;
  background: transparent;
  color: var(--danger);
  border: 1px solid #4a1f24;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  transition: all 120ms ease;
}
.btn-danger:hover { background: var(--danger); color: white; border-color: var(--danger); }

/* ===== Cards / Grid ===== */

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
}

.grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}
@media (max-width: 880px) {
  .grid { grid-template-columns: 1fr; }
}

/* ===== Auth ===== */

.auth-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 30% 20%, rgba(88,101,242,0.15), transparent 50%),
              radial-gradient(circle at 70% 80%, rgba(139,92,246,0.12), transparent 50%),
              var(--bg);
  margin: 0;
}

.auth-card {
  width: 100%;
  max-width: 380px;
  margin: 24px;
  padding: 32px 28px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.auth-card h1 { margin: 18px 0 4px; font-size: 22px; }
.auth-card p { margin: 0 0 24px; }
.auth-card form { display: flex; flex-direction: column; }
.auth-card .btn-primary { margin-top: 20px; }

.alert {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  font-size: 13px;
}
.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}
.alert-success {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #86efac;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  font-size: 13px;
}

.toggle-row {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 6px 0 12px;
  text-transform: none;
  letter-spacing: 0;
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
}
.toggle-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}

.banner-preview {
  margin-top: 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg);
}
.banner-preview img {
  display: block;
  width: 100%;
  max-height: 200px;
  object-fit: cover;
}

/* ===== Tables ===== */

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.data-table th, .data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.data-table thead th {
  background: var(--bg-elev-2);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
}
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table tbody tr:hover { background: rgba(255,255,255,0.02); }

.empty {
  padding: 40px;
  background: var(--bg-elev);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  text-align: center;
  color: var(--text-muted);
}

.color-chip {
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 3px;
  background: var(--chip, #14B8A6);
  border: 1px solid var(--border);
  vertical-align: middle;
  margin-right: 6px;
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

.row-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}
.row-actions form { margin: 0; }