:root {
  --bg-primary: #0f1117;
  --bg-secondary: #161822;
  --bg-card: #1c1f2e;
  --bg-hover: #252839;
  --border-color: #2a2d3e;
  --text-primary: #e4e6f0;
  --text-secondary: #8b8fa3;
  --accent: #5b6eea;
  --accent-hover: #4a5cd9;
  --success: #22c55e;
  --danger: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;
  --sidebar-width: 240px;
}

* { box-sizing: border-box; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  margin: 0;
  min-height: 100vh;
}

/* Login */
.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.5rem;
  width: 100%;
  max-width: 400px;
}

.login-header {
  text-align: center;
  margin-bottom: 2rem;
}

.login-header i {
  font-size: 3rem;
  color: var(--accent);
}

.login-header h2 {
  margin: 0.5rem 0 0.25rem;
  font-weight: 700;
}

.login-header p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Sidebar */
#sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-header {
  padding: 1.25rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid var(--border-color);
  font-weight: 700;
  font-size: 1.1rem;
}

.sidebar-header i {
  font-size: 1.5rem;
  color: var(--accent);
}

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

.sidebar-nav li {
  padding: 0.65rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.15s;
  margin: 2px 8px;
  border-radius: 8px;
  font-size: 0.9rem;
}

.sidebar-nav li:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.sidebar-nav li.active {
  background: var(--accent);
  color: #fff;
}

.sidebar-nav li i {
  font-size: 1.1rem;
  width: 20px;
  text-align: center;
}

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

/* Main */
#main-content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-status {
  display: flex;
  align-items: center;
}

.page-content {
  padding: 1.5rem;
}

.page { display: none; }
.page.active { display: block; }

.page-title {
  font-weight: 700;
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

/* Stat Cards */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: #fff;
  flex-shrink: 0;
}

.stat-icon.bg-primary { background: var(--accent); }
.stat-icon.bg-success { background: var(--success); }
.stat-icon.bg-info { background: var(--info); }
.stat-icon.bg-warning { background: var(--warning); }

.stat-info {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
}

.card-header {
  background: transparent;
  border-bottom: 1px solid var(--border-color);
  padding: 0.875rem 1.25rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-body { padding: 1.25rem; }

/* Tables */
.table {
  color: var(--text-primary);
  --bs-table-bg: transparent;
  --bs-table-hover-bg: var(--bg-hover);
  font-size: 0.875rem;
}

.table thead th {
  border-bottom-color: var(--border-color);
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.75rem 1rem;
}

.table td {
  border-bottom-color: var(--border-color);
  padding: 0.65rem 1rem;
  vertical-align: middle;
}

.table td.text-truncate-cell {
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Forms */
.form-control,
.form-select {
  background: var(--bg-primary);
  border-color: var(--border-color);
  color: var(--text-primary);
  border-radius: 8px;
}

.form-control:focus,
.form-select:focus {
  background: var(--bg-primary);
  border-color: var(--accent);
  color: var(--text-primary);
  box-shadow: 0 0 0 3px rgba(91, 110, 234, 0.15);
}

.form-control::placeholder { color: var(--text-secondary); }

.form-check-input {
  background-color: var(--bg-primary);
  border-color: var(--border-color);
}

.form-check-input:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}

.form-label {
  font-weight: 500;
  font-size: 0.875rem;
  margin-bottom: 0.375rem;
}

.form-text { color: var(--text-secondary); }

/* Buttons */
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-outline-primary {
  color: var(--accent);
  border-color: var(--accent);
}

.btn-outline-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-outline-danger { color: var(--danger); border-color: var(--danger); }
.btn-outline-danger:hover { background: var(--danger); color: #fff; }

.btn-outline-secondary { color: var(--text-secondary); border-color: var(--border-color); }
.btn-outline-secondary:hover { background: var(--bg-hover); color: var(--text-primary); }

.btn-outline-warning { color: var(--warning); border-color: var(--warning); }
.btn-outline-warning:hover { background: var(--warning); color: #000; }

/* Badges */
.badge {
  font-weight: 500;
  font-size: 0.75rem;
  padding: 0.35em 0.65em;
  border-radius: 6px;
}

.badge i { font-size: 0.5rem; margin-right: 4px; vertical-align: middle; }

.badge.status-forwarded { background: var(--success); }
.badge.status-skipped_no_url,
.badge.status-skipped_domain { background: var(--warning); color: #000; }
.badge.status-error { background: var(--danger); }

/* Modals */
.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
}

.modal-header {
  border-bottom-color: var(--border-color);
}

.modal-footer {
  border-top-color: var(--border-color);
}

.btn-close {
  filter: invert(1) grayscale(100%) brightness(200%);
}

/* Chart */
.chart-container {
  position: relative;
  height: 250px;
}

/* Channel stats */
.channel-stat-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.875rem;
}

.channel-stat-item:last-child { border-bottom: none; }

.channel-stat-name {
  color: var(--text-primary);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 160px;
}

.channel-stat-count {
  background: var(--accent);
  color: #fff;
  padding: 0.15rem 0.5rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

/* Toast */
.toast-container .toast {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 8px;
}

/* URL cell */
.url-cell {
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.url-cell a {
  color: var(--accent);
  text-decoration: none;
}

.url-cell a:hover { text-decoration: underline; }

/* Responsive */
@media (max-width: 768px) {
  #sidebar {
    transform: translateX(-100%);
  }
  #sidebar.show {
    transform: translateX(0);
  }
  #main-content {
    margin-left: 0;
  }
  .stat-value { font-size: 1.2rem; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* Alert overrides */
.alert-danger {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--danger);
  color: var(--danger);
}

.alert-success {
  background: rgba(34, 197, 94, 0.1);
  border-color: var(--success);
  color: var(--success);
}