@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

/* ─── CSS Custom Properties ─────────────────────────────── */
:root {
  --primary:        #6366f1;
  --primary-dark:   #4f46e5;
  --primary-light:  #818cf8;
  --secondary:      #8b5cf6;
  --accent:         #06b6d4;
  --success:        #10b981;
  --warning:        #f59e0b;
  --danger:         #f43f5e;
  --info:           #3b82f6;

  --bg-base:        #0f172a;
  --bg-surface:     #1e293b;
  --bg-elevated:    #263148;
  --bg-hover:       #2d3a52;
  --border:         #334155;
  --border-light:   #475569;

  --text-primary:   #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted:     #64748b;

  --sidebar-w:      260px;
  --header-h:       64px;
  --radius:         12px;
  --radius-sm:      8px;
  --radius-lg:      16px;
  --shadow:         0 4px 24px rgba(0,0,0,0.35);
  --shadow-sm:      0 2px 8px rgba(0,0,0,0.2);
  --shadow-glow:    0 0 20px rgba(99,102,241,0.25);
  --transition:     0.2s cubic-bezier(0.4,0,0.2,1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 14px;
  overflow-x: hidden;
  min-height: 100vh;
}

a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: #fff; }

img { max-width: 100%; height: auto; }
input, textarea, select, button { font-family: inherit; }

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

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

/* ─── Sidebar ────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  z-index: 50;
  transition: transform var(--transition);
}

.sidebar-brand {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
}

.brand-text .app-name {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.2;
}

.brand-text .app-sub {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 12px 0;
}

.nav-section-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 16px 20px 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  margin: 2px 8px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 13.5px;
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
}

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

.nav-item.active {
  background: linear-gradient(135deg, rgba(99,102,241,0.2), rgba(139,92,246,0.15));
  color: var(--primary-light);
  border: 1px solid rgba(99,102,241,0.3);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: -8px; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 20px;
  background: var(--primary);
  border-radius: 0 3px 3px 0;
}

.nav-item .nav-icon { font-size: 16px; width: 20px; text-align: center; }
.nav-badge {
  margin-left: auto;
  background: var(--danger);
  color: white;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 10px;
  min-width: 18px;
  text-align: center;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}

.user-info {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
}

.user-avatar {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px;
  flex-shrink: 0;
}

.user-name { font-size: 12.5px; font-weight: 600; color: var(--text-primary); }
.user-role { font-size: 11px; color: var(--text-muted); }
.logout-btn {
  margin-left: auto;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 15px;
  transition: color var(--transition);
}
.logout-btn:hover { color: var(--danger); }

/* ─── Main Content ───────────────────────────────────────── */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ─── Topbar ─────────────────────────────────────────────── */
.topbar {
  height: var(--header-h);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 28px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(10px);
}

.topbar-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 18px;
  color: var(--text-primary);
}

.topbar-spacer { flex: 1; }

.topbar-search {
  position: relative;
}

.topbar-search input {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 14px 8px 36px;
  color: var(--text-primary);
  font-size: 13px;
  width: 220px;
  transition: all var(--transition);
}

.topbar-search input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
  width: 280px;
}

.topbar-search .search-icon {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 14px;
}

/* ─── Notification Bell ──────────────────────────────────── */
.notif-btn {
  position: relative;
  width: 38px; height: 38px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  font-size: 16px;
  color: var(--text-secondary);
  transition: all var(--transition);
}
.notif-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.notif-dot {
  position: absolute;
  top: 6px; right: 6px;
  width: 8px; height: 8px;
  background: var(--danger);
  border-radius: 50%;
  border: 2px solid var(--bg-surface);
}
.notif-count {
  position: absolute;
  top: -4px; right: -4px;
  background: var(--danger);
  color: white;
  font-size: 9px; font-weight: 700;
  min-width: 16px; height: 16px;
  border-radius: 8px;
  padding: 0 4px;
  display: flex; align-items: center; justify-content: center;
}

/* ─── Page Content Wrapper ───────────────────────────────── */
.page-content {
  padding: 28px;
  flex: 1;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
  flex-wrap: wrap;
}

.page-header-left .page-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
}

.page-header-left .page-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ─── Cards ──────────────────────────────────────────────── */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.card:hover { border-color: var(--border-light); }

.card-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 15px;
  color: var(--text-primary);
}

.card-body { padding: 22px; }
.card-footer { padding: 16px 22px; border-top: 1px solid var(--border); }

/* ─── Stat Cards ─────────────────────────────────────────── */
.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  border-color: rgba(99,102,241,0.4);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 80px; height: 80px;
  border-radius: 0 var(--radius) 0 100%;
  opacity: 0.08;
}

.stat-card.indigo::before  { background: var(--primary); }
.stat-card.violet::before  { background: var(--secondary); }
.stat-card.cyan::before    { background: var(--accent); }
.stat-card.emerald::before { background: var(--success); }
.stat-card.amber::before   { background: var(--warning); }
.stat-card.rose::before    { background: var(--danger); }

.stat-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.stat-icon.indigo  { background: rgba(99,102,241,0.15); color: var(--primary-light); }
.stat-icon.violet  { background: rgba(139,92,246,0.15); color: #a78bfa; }
.stat-icon.cyan    { background: rgba(6,182,212,0.15);  color: #67e8f9; }
.stat-icon.emerald { background: rgba(16,185,129,0.15); color: #6ee7b7; }
.stat-icon.amber   { background: rgba(245,158,11,0.15); color: #fcd34d; }
.stat-icon.rose    { background: rgba(244,63,94,0.15);  color: #fb7185; }

.stat-value {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.1;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-change {
  font-size: 11px;
  font-weight: 600;
  margin-top: 6px;
  display: flex; align-items: center; gap: 4px;
}
.stat-change.up   { color: var(--success); }
.stat-change.down { color: var(--danger); }

/* ─── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.4;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: 0 4px 12px rgba(99,102,241,0.35);
}
.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(99,102,241,0.5);
  color: white;
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--bg-hover); color: var(--text-primary); }

.btn-success {
  background: linear-gradient(135deg, #059669, var(--success));
  color: white;
  box-shadow: 0 4px 12px rgba(16,185,129,0.3);
}
.btn-success:hover { box-shadow: 0 6px 20px rgba(16,185,129,0.45); color: white; transform: translateY(-1px); }

.btn-danger {
  background: linear-gradient(135deg, #be123c, var(--danger));
  color: white;
  box-shadow: 0 4px 12px rgba(244,63,94,0.3);
}
.btn-danger:hover { box-shadow: 0 6px 20px rgba(244,63,94,0.45); color: white; transform: translateY(-1px); }

.btn-warning {
  background: linear-gradient(135deg, #d97706, var(--warning));
  color: white;
  box-shadow: 0 4px 12px rgba(245,158,11,0.3);
}
.btn-warning:hover { box-shadow: 0 6px 20px rgba(245,158,11,0.45); color: white; transform: translateY(-1px); }

.btn-outline-primary {
  background: transparent;
  color: var(--primary-light);
  border: 1px solid var(--primary);
}
.btn-outline-primary:hover { background: rgba(99,102,241,0.1); color: var(--primary-light); }

.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 15px; }
.btn-icon { padding: 8px; }
.btn-icon.btn-sm { padding: 5px; }

/* ─── Form Controls ──────────────────────────────────────── */
.form-group { margin-bottom: 18px; }
.form-label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.form-label .req { color: var(--danger); margin-left: 2px; }

.form-control {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 13.5px;
  transition: all var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
  background: var(--bg-hover);
}

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

.form-control option {
  background: var(--bg-surface);
  color: var(--text-primary);
}

textarea.form-control { resize: vertical; min-height: 100px; }

.form-hint {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-row {
  display: grid;
  gap: 16px;
}
.form-row.cols-2 { grid-template-columns: 1fr 1fr; }
.form-row.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-row.cols-4 { grid-template-columns: repeat(4, 1fr); }

/* ─── Table ──────────────────────────────────────────────── */
.table-wrapper { overflow-x: auto; border-radius: var(--radius); }

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

.data-table thead th {
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table tbody td {
  padding: 13px 16px;
  border-bottom: 1px solid rgba(51,65,85,0.5);
  color: var(--text-secondary);
  vertical-align: middle;
}

.data-table tbody tr { transition: background var(--transition); }
.data-table tbody tr:hover { background: rgba(99,102,241,0.04); }
.data-table tbody tr:last-child td { border-bottom: none; }

/* ─── Badges ─────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.badge-success  { background: rgba(16,185,129,0.15); color: #6ee7b7; }
.badge-danger   { background: rgba(244,63,94,0.15);  color: #fb7185; }
.badge-warning  { background: rgba(245,158,11,0.15); color: #fcd34d; }
.badge-info     { background: rgba(59,130,246,0.15); color: #93c5fd; }
.badge-primary  { background: rgba(99,102,241,0.15); color: #a5b4fc; }
.badge-secondary{ background: rgba(100,116,139,0.15);color: #94a3b8; }
.badge-dot::before { content: '●'; font-size: 8px; }

/* ─── Alerts / Flash ─────────────────────────────────────── */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid;
  margin-bottom: 20px;
  font-size: 13.5px;
  font-weight: 500;
}

.alert-success { background: rgba(16,185,129,0.1); border-color: rgba(16,185,129,0.3); color: #6ee7b7; }
.alert-error   { background: rgba(244,63,94,0.1);  border-color: rgba(244,63,94,0.3);  color: #fb7185; }
.alert-warning { background: rgba(245,158,11,0.1); border-color: rgba(245,158,11,0.3); color: #fcd34d; }
.alert-info    { background: rgba(59,130,246,0.1); border-color: rgba(59,130,246,0.3); color: #93c5fd; }

.alert-close {
  margin-left: auto;
  cursor: pointer;
  opacity: 0.7;
  font-size: 16px;
  line-height: 1;
  flex-shrink: 0;
}
.alert-close:hover { opacity: 1; }

/* ─── Pagination ─────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.page-btn {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  text-decoration: none;
}

.page-btn:hover { background: var(--primary); color: white; border-color: var(--primary); }
.page-btn.active { background: var(--primary); color: white; border-color: var(--primary); }
.page-btn.disabled { opacity: 0.35; pointer-events: none; }

/* ─── Filters Bar ────────────────────────────────────────── */
.filters-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.filter-select {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: all var(--transition);
}
.filter-select:focus { outline: none; border-color: var(--primary); color: var(--text-primary); }

/* ─── Avatar ─────────────────────────────────────────────── */
.avatar {
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.avatar-placeholder {
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  flex-shrink: 0;
}

/* ─── Modal ──────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
  padding: 20px;
}

.modal {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
  animation: modalIn 0.2s ease;
}

.modal-lg { max-width: 800px; }
.modal-xl { max-width: 1100px; }

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}

.modal-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 16px;
}

.modal-close {
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-elevated);
  border-radius: 50%;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 14px;
  transition: all var(--transition);
}
.modal-close:hover { background: var(--danger); color: white; }

.modal-body    { padding: 24px; }
.modal-footer  { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; gap: 10px; justify-content: flex-end; }

/* ─── Progress Bar ───────────────────────────────────────── */
.progress-bar {
  height: 6px;
  background: var(--bg-elevated);
  border-radius: 3px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 0.6s ease;
}

/* ─── Tooltip ────────────────────────────────────────────── */
[data-tooltip] { position: relative; }
[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%; transform: translateX(-50%);
  background: var(--bg-elevated);
  color: var(--text-primary);
  font-size: 11.5px;
  padding: 5px 10px;
  border-radius: 6px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition);
  border: 1px solid var(--border);
  z-index: 999;
}
[data-tooltip]:hover::after { opacity: 1; }

/* ─── Empty State ────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.empty-state .empty-icon { font-size: 48px; margin-bottom: 16px; opacity: 0.5; }
.empty-state .empty-title { font-size: 16px; font-weight: 600; color: var(--text-secondary); margin-bottom: 8px; }
.empty-state .empty-text  { font-size: 13px; max-width: 300px; margin: 0 auto; }

/* ─── Dropdown ───────────────────────────────────────────── */
.dropdown { position: relative; }
.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  min-width: 180px;
  box-shadow: var(--shadow);
  z-index: 60;
  overflow: hidden;
  animation: dropIn 0.15s ease;
}
@keyframes dropIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.dropdown-item {
  display: flex; align-items: center; gap: 9px;
  padding: 10px 16px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}
.dropdown-item:hover { background: var(--bg-elevated); color: var(--text-primary); }
.dropdown-item.danger { color: var(--danger); }
.dropdown-item.danger:hover { background: rgba(244,63,94,0.1); }
.dropdown-divider { border-top: 1px solid var(--border); }

/* ─── Tabs ───────────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}
.tab-btn {
  padding: 10px 18px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
  margin-bottom: -1px;
}
.tab-btn:hover { color: var(--text-secondary); }
.tab-btn.active { color: var(--primary-light); border-bottom-color: var(--primary); }

/* ─── Search Bar ─────────────────────────────────────────── */
.search-form {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.search-input-wrap { position: relative; }
.search-input-wrap input {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 14px 9px 38px;
  color: var(--text-primary);
  font-size: 13.5px;
  width: 280px;
  transition: all var(--transition);
}
.search-input-wrap input:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}
.search-input-wrap .search-icon {
  position: absolute; left: 12px; top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted); font-size: 14px;
}

/* ─── Login Page ─────────────────────────────────────────── */
.auth-page {
  min-height: 100vh;
  display: flex;
  background: var(--bg-base);
  overflow: hidden;
}

.auth-left {
  flex: 1;
  background: linear-gradient(135deg, #0f172a 0%, #1a1f3e 50%, #0f172a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px;
  position: relative;
  overflow: hidden;
}

.auth-left::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(99,102,241,0.15) 0%, transparent 70%);
  top: -100px; left: -100px;
}
.auth-left::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(139,92,246,0.1) 0%, transparent 70%);
  bottom: -50px; right: -50px;
}

.auth-brand { position: relative; z-index: 1; text-align: center; max-width: 400px; }
.auth-brand-icon {
  width: 80px; height: 80px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 20px;
  display: flex; align-items: center; justify-content: center;
  font-size: 36px;
  margin: 0 auto 24px;
  box-shadow: 0 16px 40px rgba(99,102,241,0.35);
}
.auth-brand h1 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 28px; font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.auth-brand p { font-size: 15px; color: var(--text-muted); line-height: 1.7; }

.auth-features { margin-top: 40px; display: flex; flex-direction: column; gap: 16px; text-align: left; }
.auth-feature {
  display: flex; align-items: center; gap: 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 14px 18px;
}
.auth-feature-icon {
  width: 38px; height: 38px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.auth-feature-text { font-size: 13px; color: var(--text-muted); }
.auth-feature-title { font-size: 13.5px; font-weight: 600; color: var(--text-secondary); }

.auth-right {
  width: 480px;
  background: var(--bg-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 50px;
  border-left: 1px solid var(--border);
}

.auth-form-container { width: 100%; }
.auth-form-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 24px; font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.auth-form-sub { font-size: 13.5px; color: var(--text-muted); margin-bottom: 32px; }

/* ─── Notification Dropdown ──────────────────────────────── */
.notif-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 360px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  z-index: 60;
  animation: dropIn 0.15s ease;
  overflow: hidden;
}

.notif-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  font-weight: 700; font-size: 13px;
}

.notif-list { max-height: 340px; overflow-y: auto; }
.notif-item {
  display: flex; gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(51,65,85,0.4);
  transition: background var(--transition);
  cursor: pointer;
}
.notif-item:hover { background: var(--bg-elevated); }
.notif-item.unread { background: rgba(99,102,241,0.04); }
.notif-item:last-child { border-bottom: none; }

.notif-item-icon {
  width: 34px; height: 34px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.notif-item-body .notif-title {
  font-size: 12.5px; font-weight: 600; color: var(--text-primary);
  margin-bottom: 2px;
}
.notif-item-body .notif-msg { font-size: 11.5px; color: var(--text-muted); }
.notif-item-body .notif-time { font-size: 10.5px; color: var(--text-muted); margin-top: 4px; }

/* ─── Chart Containers ───────────────────────────────────── */
.chart-container { position: relative; width: 100%; }
.chart-container canvas { max-width: 100%; }

/* ─── Alumni Card Grid ───────────────────────────────────── */
.alumni-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all var(--transition);
}
.alumni-card:hover {
  border-color: rgba(99,102,241,0.35);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

/* ─── Survey Question Card ───────────────────────────────── */
.question-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  position: relative;
  transition: border-color var(--transition);
}
.question-card:hover { border-color: var(--primary); }
.question-card .drag-handle {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); cursor: grab; font-size: 16px;
}

/* ─── Timeline ───────────────────────────────────────────── */
.timeline { position: relative; padding-left: 28px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 8px; top: 6px; bottom: 6px;
  width: 2px;
  background: var(--border);
}
.timeline-item { position: relative; margin-bottom: 24px; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -24px; top: 6px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid var(--bg-base);
}

/* ─── Mobile Sidebar Toggle ──────────────────────────────── */
.sidebar-toggle {
  display: none;
  width: 38px; height: 38px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 18px;
  color: var(--text-secondary);
}

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 1024px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); box-shadow: var(--shadow); }
  .main-content { margin-left: 0; }
  .sidebar-toggle { display: flex; }
  .auth-left { display: none; }
  .auth-right { width: 100%; }
}

@media (max-width: 768px) {
  .form-row.cols-2,
  .form-row.cols-3,
  .form-row.cols-4 { grid-template-columns: 1fr; }
  .page-content { padding: 16px; }
  .topbar { padding: 0 16px; }
}

/* ─── Animations ─────────────────────────────────────────── */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.animate-fade { animation: fadeIn 0.3s ease; }
.animate-slide { animation: slideUp 0.3s ease; }
.animate-pulse { animation: pulse 2s infinite; }
.animate-spin { animation: spin 1s linear infinite; }

/* ─── Glassmorphism Card ─────────────────────────────────── */
.glass-card {
  background: rgba(30,41,59,0.7);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
}

/* ─── Gradient Text ──────────────────────────────────────── */
.gradient-text {
  background: linear-gradient(135deg, var(--primary-light), #a78bfa, #67e8f9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Utilities ──────────────────────────────────────────── */
.text-primary   { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted     { color: var(--text-muted) !important; }
.text-success   { color: var(--success) !important; }
.text-danger    { color: var(--danger) !important; }
.text-warning   { color: var(--warning) !important; }
.text-info      { color: var(--info) !important; }
.text-center    { text-align: center; }
.text-right     { text-align: right; }
.fw-bold        { font-weight: 700; }
.fw-semibold    { font-weight: 600; }
.d-flex         { display: flex; }
.align-center   { align-items: center; }
.justify-between{ justify-content: space-between; }
.gap-1          { gap: 4px; }
.gap-2          { gap: 8px; }
.gap-3          { gap: 12px; }
.gap-4          { gap: 16px; }
.mt-1           { margin-top: 4px; }
.mt-2           { margin-top: 8px; }
.mt-3           { margin-top: 12px; }
.mt-4           { margin-top: 16px; }
.mb-3           { margin-bottom: 12px; }
.mb-4           { margin-bottom: 16px; }
.p-0            { padding: 0 !important; }
.w-full         { width: 100%; }
.hidden         { display: none !important; }
.flex-1         { flex: 1; }
.truncate       { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rounded        { border-radius: var(--radius); }
.rounded-full   { border-radius: 9999px; }
.shadow         { box-shadow: var(--shadow); }
.border-top     { border-top: 1px solid var(--border); }
.overflow-hidden{ overflow: hidden; }