/* ─── Reset & Base ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --bg-card: #1c2128;
  --border: #30363d;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #484f58;
  --accent: #58a6ff;
  --accent-hover: #79c0ff;
  --green: #3fb950;
  --red: #f85149;
  --yellow: #d29922;
  --orange: #db6d28;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 8px;
  --sidebar-width: 220px;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
}

/* ─── Login Page ─── */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-container {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  width: 100%;
  max-width: 360px;
  text-align: center;
}

.login-container h1 { font-size: 1.5rem; margin-bottom: 0.25rem; }
.login-container .subtitle { color: var(--text-secondary); margin-bottom: 1.5rem; font-size: 0.85rem; }

.login-container input {
  width: 100%;
  padding: 0.6rem 0.8rem;
  margin-bottom: 0.75rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 0.9rem;
}

.login-container button {
  width: 100%;
  padding: 0.6rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 0.9rem;
  cursor: pointer;
  font-weight: 600;
}

.login-container button:hover { background: var(--accent-hover); }

.error { color: var(--red); font-size: 0.8rem; margin-top: 0.5rem; }
.hidden { display: none !important; }

/* ─── Layout ─── */
.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 10;
}

.sidebar-header {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sidebar-header h2 { font-size: 1.1rem; }

.badge { color: var(--green); font-size: 0.8rem; }

.nav-links {
  list-style: none;
  padding: 0.5rem 0;
  flex: 1;
}

.nav-link {
  display: block;
  padding: 0.6rem 1rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  border-left: 3px solid transparent;
  transition: all 0.15s;
}

.nav-link:hover { color: var(--text-primary); background: var(--bg-tertiary); }
.nav-link.active { color: var(--accent); border-left-color: var(--accent); background: rgba(88, 166, 255, 0.08); }

.count-badge {
  background: var(--red);
  color: #fff;
  font-size: 0.65rem;
  padding: 1px 5px;
  border-radius: 8px;
  margin-left: 4px;
}

.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid var(--border);
}

.content {
  margin-left: var(--sidebar-width);
  padding: 1.5rem;
  flex: 1;
  min-height: 100vh;
}

/* ─── Cards ─── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

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

.card-label { font-size: 0.75rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.5px; }
.card-value { font-size: 1.8rem; font-weight: 700; font-family: var(--font-mono); margin-top: 0.25rem; }
.card-sub { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.25rem; }

/* ─── Tables ─── */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.data-table th {
  text-align: left;
  padding: 0.6rem 0.8rem;
  border-bottom: 2px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.data-table td {
  padding: 0.5rem 0.8rem;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.data-table tr:hover td { background: rgba(88, 166, 255, 0.04); }

/* ─── Buttons ─── */
.btn { padding: 0.4rem 0.8rem; border: 1px solid var(--border); border-radius: 6px; background: var(--bg-tertiary); color: var(--text-primary); cursor: pointer; font-size: 0.8rem; transition: all 0.15s; }
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { border-color: var(--red); color: var(--red); }
.btn-danger:hover { background: var(--red); color: #fff; }
.btn-success { border-color: var(--green); color: var(--green); }
.btn-success:hover { background: var(--green); color: #fff; }
.btn-small { padding: 0.3rem 0.6rem; font-size: 0.75rem; background: var(--bg-tertiary); border: 1px solid var(--border); border-radius: 4px; color: var(--text-secondary); cursor: pointer; }
.btn-small:hover { color: var(--text-primary); }

/* ─── Sections ─── */
.section-title { font-size: 1.1rem; font-weight: 600; margin-bottom: 1rem; display: flex; align-items: center; gap: 0.5rem; }
.section-subtitle { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 1rem; }

/* ─── Search ─── */
.search-bar { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
.search-bar input { flex: 1; padding: 0.5rem 0.8rem; background: var(--bg-tertiary); border: 1px solid var(--border); border-radius: 6px; color: var(--text-primary); font-size: 0.85rem; }
.search-bar input::placeholder { color: var(--text-muted); }

/* ─── Lobby Mesa Cards ─── */
.lobby-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.lobby-column h3 { font-size: 0.9rem; margin-bottom: 0.75rem; text-align: center; color: var(--accent); }
.mesa-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 0.75rem; margin-bottom: 0.5rem; }
.mesa-card.has-waiting { border-color: var(--yellow); }
.mesa-seat { display: flex; justify-content: space-between; padding: 0.3rem 0; font-size: 0.8rem; font-family: var(--font-mono); }
.mesa-seat.empty { color: var(--text-muted); }
.mesa-band { font-size: 0.7rem; color: var(--text-secondary); text-transform: uppercase; margin-bottom: 0.4rem; }

/* ─── Toggle ─── */
.toggle { display: flex; align-items: center; gap: 0.5rem; }
.toggle-switch { width: 40px; height: 22px; background: var(--bg-tertiary); border-radius: 11px; position: relative; cursor: pointer; border: 1px solid var(--border); transition: background 0.2s; }
.toggle-switch.on { background: var(--green); }
.toggle-switch::after { content: ''; position: absolute; width: 16px; height: 16px; background: #fff; border-radius: 50%; top: 2px; left: 2px; transition: transform 0.2s; }
.toggle-switch.on::after { transform: translateX(18px); }

/* ─── Status indicators ─── */
.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 4px; }
.status-dot.green { background: var(--green); }
.status-dot.yellow { background: var(--yellow); }
.status-dot.red { background: var(--red); }

/* ─── Pool bar ─── */
.pool-bar { display: flex; gap: 4px; margin: 0.5rem 0; }
.pool-slot { width: 30px; height: 20px; border-radius: 4px; border: 1px solid var(--border); }
.pool-slot.available { background: var(--green); }
.pool-slot.busy { background: var(--yellow); }
.pool-slot.dead { background: var(--red); }

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .sidebar-header h2, .nav-link span, .sidebar-footer { display: none; }
  .content { margin-left: 60px; }
  .lobby-grid { grid-template-columns: 1fr; }
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
}