:root {
  --bg-primary: #0f1117;
  --bg-secondary: #181a24;
  --bg-card: #1e2030;
  --bg-hover: #262940;
  --border-color: #2a2d3e;
  --text-primary: #e8e9ed;
  --text-secondary: #8b8fa3;
  --text-muted: #5c6078;
  --accent-blue: #5b8af5;
  --accent-blue-soft: rgba(91, 138, 245, 0.12);
  --accent-green: #34d399;
  --accent-green-soft: rgba(52, 211, 153, 0.12);
  --accent-red: #f87171;
  --accent-red-soft: rgba(248, 113, 113, 0.12);
  --accent-yellow: #fbbf24;
  --accent-yellow-soft: rgba(251, 191, 36, 0.12);
  --accent-purple: #a78bfa;
  --accent-purple-soft: rgba(167, 139, 250, 0.12);
  --accent-orange: #fb923c;
  --accent-orange-soft: rgba(251, 146, 60, 0.12);
  --sidebar-width: 240px;
}

/* Light theme */
[data-theme="light"] {
  --bg-primary: #f5f6fa;
  --bg-secondary: #eef0f5;
  --bg-card: #ffffff;
  --bg-hover: #f0f1f6;
  --border-color: #e4e7ed;
  --text-primary: #2a3042;
  --text-secondary: #74788d;
  --text-muted: #a0a4b4;
  --accent-blue: #556ee6;
  --accent-blue-soft: rgba(85, 110, 230, 0.10);
  --accent-green: #34c38f;
  --accent-green-soft: rgba(52, 195, 143, 0.10);
  --accent-red: #f46a6a;
  --accent-red-soft: rgba(244, 106, 106, 0.10);
  --accent-yellow: #f1b44c;
  --accent-yellow-soft: rgba(241, 180, 76, 0.12);
  --accent-purple: #8b5cf6;
  --accent-purple-soft: rgba(139, 92, 246, 0.10);
  --accent-orange: #f1903c;
  --accent-orange-soft: rgba(241, 144, 60, 0.10);
}
[data-theme="light"] .login-screen::before {
  background: radial-gradient(circle, rgba(85,110,230,0.06) 0%, transparent 70%);
}
[data-theme="light"] .form-control-dark {
  background: #f5f6fa; border-color: var(--border-color); color: var(--text-primary);
}
[data-theme="light"] .form-control-dark:focus {
  background: #ffffff; color: var(--text-primary);
}
[data-theme="light"] .form-control-dark::placeholder { color: var(--text-muted); }
[data-theme="light"] .modal-dark .btn-close { filter: none; opacity: 0.6; }
[data-theme="light"] .page-btn:hover { border-color: #ced2da; }
[data-theme="light"] .filter-btn:hover { border-color: #ced2da; }
[data-theme="light"] .stat-card:hover { border-color: #d4d8e0; }
[data-theme="light"] .data-table thead th { background: #f8f9fc; }
[data-theme="light"] .sidebar { background: #2a3042; border-right-color: #2a3042; }
[data-theme="light"] .sidebar-logo { border-bottom-color: #333a4e; color: #e8e9ed; }
[data-theme="light"] .sidebar-logo span { color: #556ee6; }
[data-theme="light"] .sidebar-section-label { color: #6a7187; }
[data-theme="light"] .sidebar-nav .nav-item-custom { color: #a6b0cf; }
[data-theme="light"] .sidebar-nav .nav-item-custom:hover { background: #333a4e; color: #e0e3ea; }
[data-theme="light"] .sidebar-nav .nav-item-custom.active { background: rgba(85,110,230,0.15); color: #ced4f7; }
[data-theme="light"] .sidebar-nav .nav-badge { background: rgba(85,110,230,0.18); color: #ced4f7; }
[data-theme="light"] .sidebar-footer { border-top-color: #333a4e; }
[data-theme="light"] .sidebar-user-name { color: #e0e3ea; }
[data-theme="light"] .sidebar-user-role { color: #6a7187; }
[data-theme="light"] .sidebar-avatar { background: rgba(85,110,230,0.18); color: #ced4f7; }
[data-theme="light"] .topbar { background: var(--bg-primary); }
[data-theme="light"] .drawer-overlay { background: rgba(0,0,0,0.18); }
[data-theme="light"] .sidebar-overlay { background: rgba(0,0,0,0.18); }
[data-theme="light"] .detail-drawer { background: #ffffff; }
[data-theme="light"] .login-card { background: #ffffff; box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
[data-theme="light"] .import-option { background: #f8f9fc; border-color: #dde0e8; }
[data-theme="light"] .import-option:hover { background: rgba(85,110,230,0.06); border-color: #556ee6; }
[data-theme="light"] .bulk-bar { background: rgba(85,110,230,0.08); border-color: rgba(85,110,230,0.18); }
[data-theme="light"] .view-switcher { background: #eef0f5; border-color: var(--border-color); }
[data-theme="light"] .table-wrapper { box-shadow: 0 1px 4px rgba(0,0,0,0.04); }
[data-theme="light"] .stat-card { box-shadow: 0 1px 3px rgba(0,0,0,0.03); }

.sidebar, .topbar, .stat-card, .table-wrapper, .import-card, .login-card,
.detail-drawer, .filter-btn, .form-control-dark, .nav-item-custom {
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.25s ease;
}

/* Theme toggle */
.theme-toggle {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  border-radius: 8px;
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 1.05rem;
}
.theme-toggle:hover { border-color: var(--accent-blue); color: var(--accent-blue); }

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Login */
.login-screen {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-primary);
  position: relative;
  transition: background-color 0.3s ease;
}
.login-screen::before {
  content: '';
  position: absolute;
  top: -30%; left: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(91,138,245,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 48px 40px;
  width: 100%; max-width: 420px;
  position: relative; z-index: 1;
}
.login-card .logo { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.03em; margin-bottom: 8px; }
.login-card .logo span { color: var(--accent-blue); }
.login-card .subtitle { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 32px; }

/* Forms */
.form-control-dark {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 10px;
  padding: 12px 16px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.925rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}
.form-control-dark:focus {
  background: var(--bg-secondary);
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px var(--accent-blue-soft);
  color: var(--text-primary);
  outline: none;
}
.form-control-dark::placeholder { color: var(--text-muted); }
select.form-control-dark { appearance: auto; }
.form-label-dark {
  display: block;
  color: var(--text-secondary);
  font-size: 0.825rem;
  font-weight: 500;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.btn-primary-custom {
  background: var(--accent-blue);
  border: none;
  color: #fff;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 0.95rem;
  transition: all 0.2s;
  width: 100%;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
}
.btn-primary-custom:hover {
  filter: brightness(0.9);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(91,138,245,0.3);
}

/* Alert */
.alert-custom {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
}
.alert-error { background: var(--accent-red-soft); color: var(--accent-red); }
.alert-success { background: var(--accent-green-soft); color: var(--accent-green); }
.alert-info { background: var(--accent-blue-soft); color: var(--accent-blue); }

/* Sidebar */
.sidebar {
  position: fixed; top: 0; left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex; flex-direction: column;
  z-index: 100;
  transition: transform 0.3s ease, background-color 0.3s ease;
}
.sidebar-logo {
  padding: 24px 20px;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  border-bottom: 1px solid var(--border-color);
}
.sidebar-logo span { color: var(--accent-blue); }
.sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }
.sidebar-section-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding: 16px 12px 8px;
  font-weight: 600;
}
.nav-item-custom {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  margin-bottom: 2px;
}
.nav-item-custom:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item-custom.active { background: var(--accent-blue-soft); color: var(--accent-blue); }
.nav-item-custom i { font-size: 1.1rem; width: 20px; text-align: center; }
.nav-badge {
  margin-left: auto;
  background: var(--accent-blue-soft); color: var(--accent-blue);
  font-size: 0.725rem; font-weight: 600;
  padding: 2px 8px; border-radius: 99px;
}
.sidebar-footer { padding: 16px; border-top: 1px solid var(--border-color); }
.sidebar-user { display: flex; align-items: center; gap: 10px; padding: 8px; border-radius: 8px; }
.sidebar-avatar {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--accent-blue-soft); color: var(--accent-blue);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.85rem;
}
.sidebar-user-name { font-size: 0.875rem; font-weight: 600; }
.sidebar-user-role { font-size: 0.75rem; color: var(--text-muted); }

/* Main content */
.main-content { margin-left: var(--sidebar-width); min-height: 100vh; }
.topbar {
  padding: 16px 32px;
  border-bottom: 1px solid var(--border-color);
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg-primary);
  position: sticky; top: 0; z-index: 50;
}
.topbar-title { font-size: 1.15rem; font-weight: 700; letter-spacing: -0.02em; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.page-content { padding: 28px 32px; }

/* Stat cards */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  transition: border-color 0.2s;
}
.stat-card:hover { border-color: #3a3d54; }
.stat-card-label {
  font-size: 0.8rem; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.06em;
  font-weight: 600; margin-bottom: 8px;
}
.stat-card-value { font-size: 1.75rem; font-weight: 700; letter-spacing: -0.03em; }

/* Status badges */
.status-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 6px;
  font-size: 0.775rem; font-weight: 600; white-space: nowrap;
}
.status-badge .dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.status-unsubmitted { background: var(--bg-hover); color: var(--text-secondary); }
.status-unsubmitted .dot { background: var(--text-muted); }
.status-pending_manager { background: var(--accent-yellow-soft); color: var(--accent-yellow); }
.status-pending_manager .dot { background: var(--accent-yellow); }
.status-pending_publisher { background: var(--accent-purple-soft); color: var(--accent-purple); }
.status-pending_publisher .dot { background: var(--accent-purple); }
.status-approved { background: var(--accent-green-soft); color: var(--accent-green); }
.status-approved .dot { background: var(--accent-green); }
.status-rejected_manager { background: var(--accent-red-soft); color: var(--accent-red); }
.status-rejected_manager .dot { background: var(--accent-red); }
.status-rejected_publisher { background: var(--accent-orange-soft); color: var(--accent-orange); }
.status-rejected_publisher .dot { background: var(--accent-orange); }

/* Tables */
.table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
}
.table-toolbar {
  padding: 16px 20px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
  border-bottom: 1px solid var(--border-color);
}
.table-toolbar-left { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.search-input-wrap { position: relative; }
.search-input-wrap i {
  position: absolute; left: 12px; top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted); font-size: 0.9rem;
}
.search-input-wrap input { padding-left: 36px; width: 260px; }
.filter-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 0.85rem; font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex; align-items: center; gap: 6px;
  font-family: 'DM Sans', sans-serif;
  text-decoration: none;
}
.filter-btn:hover { border-color: #3a3d54; color: var(--text-primary); }
.filter-btn.active-filter { border-color: var(--accent-blue); color: var(--accent-blue); background: var(--accent-blue-soft); }

.data-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.data-table thead th {
  padding: 12px 16px; text-align: left;
  font-size: 0.75rem; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--text-muted);
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
  white-space: nowrap;
}
.data-table tbody tr {
  border-bottom: 1px solid var(--border-color);
  transition: background 0.1s;
}
.data-table tbody tr:hover { background: var(--bg-hover); }
.data-table tbody tr:last-child { border-bottom: none; }
.data-table td {
  padding: 12px 16px; white-space: nowrap;
  color: var(--text-secondary);
}
.data-table td.cell-id {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem; color: var(--text-muted);
}
.data-table td.cell-name { color: var(--text-primary); font-weight: 500; }
.data-table .row-checkbox {
  accent-color: var(--accent-blue);
  width: 16px; height: 16px; cursor: pointer;
}
.preview-link {
  color: var(--accent-blue);
  text-decoration: none;
  font-size: 0.8rem;
  display: inline-flex; align-items: center; gap: 4px;
}
.preview-link:hover { text-decoration: underline; }

/* Action buttons */
.action-btn {
  border: none; border-radius: 6px;
  padding: 6px 12px; font-size: 0.8rem; font-weight: 600;
  cursor: pointer; transition: all 0.15s;
  font-family: 'DM Sans', sans-serif;
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 4px;
}
.action-btn-approve { background: var(--accent-green-soft); color: var(--accent-green); }
.action-btn-approve:hover { background: var(--accent-green); color: #fff; }
.action-btn-reject { background: var(--accent-red-soft); color: var(--accent-red); }
.action-btn-reject:hover { background: var(--accent-red); color: #fff; }
.action-btn-submit { background: var(--accent-blue-soft); color: var(--accent-blue); }
.action-btn-submit:hover { background: var(--accent-blue); color: #fff; }

/* Pagination */
.table-pagination {
  padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between;
  border-top: 1px solid var(--border-color);
  font-size: 0.825rem; color: var(--text-secondary);
}
.pagination-info { color: var(--text-muted); }
.pagination-controls { display: flex; align-items: center; gap: 4px; }
.page-btn {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  border-radius: 6px;
  width: 34px; height: 34px;
  font-size: 0.825rem;
  cursor: pointer; transition: all 0.15s;
  display: flex; align-items: center; justify-content: center;
  font-family: 'DM Sans', sans-serif;
  text-decoration: none;
}
.page-btn:hover { border-color: #3a3d54; color: var(--text-primary); }
.page-btn.active { background: var(--accent-blue); border-color: var(--accent-blue); color: #fff; }
.page-btn.disabled { opacity: 0.4; pointer-events: none; }

/* Bulk bar */
.bulk-bar {
  background: var(--accent-blue-soft);
  border: 1px solid rgba(91,138,245,0.2);
  border-radius: 10px;
  padding: 12px 20px; margin-bottom: 16px;
  display: flex; align-items: center; gap: 16px;
  font-size: 0.875rem;
}
.bulk-bar-count { font-weight: 600; color: var(--accent-blue); }

/* Modals */
.modal-dark .modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  color: var(--text-primary);
}
.modal-dark .modal-header { border-bottom: 1px solid var(--border-color); padding: 20px 24px; }
.modal-dark .modal-title { font-weight: 700; font-size: 1.1rem; }
.modal-dark .modal-body { padding: 24px; }
.modal-dark .modal-footer { border-top: 1px solid var(--border-color); padding: 16px 24px; }
.modal-dark .btn-close { filter: invert(1); opacity: 0.5; }

/* User avatars */
.user-row-avatar {
  width: 32px; height: 32px;
  border-radius: 8px;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.75rem; flex-shrink: 0;
}
.role-badge {
  display: inline-block;
  padding: 3px 10px; border-radius: 6px;
  font-size: 0.775rem; font-weight: 600;
}
.role-admin { background: var(--accent-blue-soft); color: var(--accent-blue); }
.role-publisher { background: var(--accent-purple-soft); color: var(--accent-purple); }
.role-advertiser { background: var(--accent-green-soft); color: var(--accent-green); }

/* Import */
.import-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 28px;
}
.import-card h5 { font-weight: 700; margin-bottom: 4px; }
.import-card p { color: var(--text-secondary); font-size: 0.875rem; }

/* Detail drawer */
.detail-drawer {
  position: fixed; top: 0; right: 0;
  width: 480px; max-width: 100vw;
  height: 100vh;
  background: var(--bg-card);
  border-left: 1px solid var(--border-color);
  z-index: 200;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  display: flex; flex-direction: column;
}
.detail-drawer.open { transform: translateX(0); }
.detail-drawer-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex; align-items: center; justify-content: space-between;
}
.detail-drawer-body { padding: 24px; overflow-y: auto; flex: 1; }
.detail-drawer-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex; gap: 10px; justify-content: flex-end;
}
.drawer-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 199;
}
.drawer-overlay.show { display: block; }

.detail-field { margin-bottom: 20px; }
.detail-label {
  font-size: 0.725rem;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-muted); font-weight: 600; margin-bottom: 4px;
}
.detail-value { font-size: 0.925rem; color: var(--text-primary); }
.detail-value-mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.825rem; color: var(--text-secondary);
}

/* Status timeline */
.status-history { position: relative; padding-left: 20px; }
.status-history::before {
  content: '';
  position: absolute; left: 5px; top: 8px; bottom: 8px;
  width: 2px; background: var(--border-color);
}
.status-history-item { position: relative; padding-bottom: 16px; }
.status-history-item::before {
  content: '';
  position: absolute; left: -19px; top: 6px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent-blue);
  border: 2px solid var(--bg-card);
}
.status-history-item:last-child { padding-bottom: 0; }
.status-history-date { font-size: 0.75rem; color: var(--text-muted); }
.status-history-text { font-size: 0.85rem; color: var(--text-secondary); }

/* Mobile sidebar */
.mobile-toggle {
  display: none;
  background: none; border: none;
  color: var(--text-primary);
  font-size: 1.3rem; cursor: pointer;
}
.sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 99;
}

@media (max-width: 768px) {
  .mobile-toggle { display: block; }
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .sidebar-overlay.show { display: block; }
  .main-content { margin-left: 0; }
  .topbar { padding: 14px 16px; }
  .page-content { padding: 16px; }
  .stat-card-value { font-size: 1.35rem; }
  .table-toolbar { flex-direction: column; align-items: stretch; }
  .search-input-wrap input { width: 100%; }
  .data-table { font-size: 0.8rem; }
  .data-table td, .data-table th { padding: 10px; }
}

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp 0.4s ease forwards; }

/* Utility */
.text-mono { font-family: 'JetBrains Mono', monospace; }
.gap-10 { gap: 10px; }