:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-glass: rgba(30, 41, 59, 0.7);
  --accent-blue: #3b82f6;
  --accent-gradient: linear-gradient(135deg, #2563eb, #06b6d4);
  --success: #22c55e;
  --danger: #ef4444;
  --warning: #f59e0b;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --border: rgba(255, 255, 255, 0.1);
  --font-family: 'Inter', sans-serif;
}

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  margin-bottom: 0.5rem;
}

a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: opacity 0.3s ease;
}

a:hover {
  opacity: 0.8;
}

/* Glassmorphism Classes */
.glass-card {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: none;
  transition: all 0.3s ease;
  width: 100%;
}

.btn-primary {
  background: var(--accent-gradient);
  color: white;
}

.btn-primary:hover {
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.5);
  transform: translateY(-1px);
}

.btn-pulse {
  animation: pulse 2s infinite;
}

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

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
}

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  animation: none;
  transform: none;
  box-shadow: none;
}

/* Forms */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-family);
  transition: all 0.3s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Badges */
.badge {
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  display: inline-block;
}

.badge-success {
  background-color: rgba(34, 197, 94, 0.2);
  color: var(--success);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.badge-danger {
  background-color: rgba(239, 68, 68, 0.2);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-warning {
  background-color: rgba(245, 158, 11, 0.2);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

/* Tables */
.table-responsive {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 1rem;
}

.data-table th,
.data-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

/* Toasts */
.toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  padding: 1rem 1.5rem;
  border-radius: 8px;
  color: white;
  font-weight: 500;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transform: translateX(120%);
  transition: transform 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.toast.show {
  transform: translateX(0);
}

.toast.success { background-color: var(--success); }
.toast.error { background-color: var(--danger); }
.toast.info { background-color: var(--accent-blue); }

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  width: 90%;
  max-width: 500px;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Utility */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.p-0 { padding: 0 !important; }

/* Animations */
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.7); }
  70% { box-shadow: 0 0 0 15px rgba(59, 130, 246, 0); }
  100% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
  20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.shake {
  animation: shake 0.5s;
}

.fade-in {
  animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Layout Specifics */
.main-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
  width: 100%;
}

/* Sidebar & Navbar */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 260px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  padding: 1.5rem 0;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-brand {
  padding: 0 1.5rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.5rem;
}

.sidebar-brand img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.sidebar-menu {
  list-style: none;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
}

.sidebar-link:hover, .sidebar-link.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
  border-left: 3px solid var(--accent-blue);
}

.admin-content {
  margin-left: 260px;
  padding: 2rem;
}

/* Mobile Bottom Nav */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-around;
  padding: 0.75rem 0;
  z-index: 100;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.75rem;
  gap: 0.25rem;
}

.nav-item.active {
  color: var(--accent-blue);
}

.nav-item i {
  font-size: 1.25rem;
}

/* Responsive */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .admin-content {
    margin-left: 0;
    padding: 1rem;
  }

  .stat-grid {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 769px) {
  .bottom-nav {
    /* Made visible on desktop so users can still navigate and logout */
    max-width: 600px;
    margin: 0 auto;
    border-radius: 16px 16px 0 0;
  }
}

/* Stat Cards Grid */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

/* New Status Badges */
.badge-alpa { background-color: rgba(220, 38, 38, 0.2); color: #dc2626; border: 1px solid rgba(220, 38, 38, 0.3); }
.badge-izin { background-color: rgba(14, 165, 233, 0.2); color: #0ea5e9; border: 1px solid rgba(14, 165, 233, 0.3); }
.badge-libur { background-color: rgba(107, 114, 128, 0.2); color: #6b7280; border: 1px solid rgba(107, 114, 128, 0.3); }

/* Chart Container */
.chart-container {
  position: relative;
  height: 300px;
  width: 100%;
}

/* Table Filters */
.filter-bar {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.filter-bar select, .filter-bar input {
  padding: 0.5rem 1rem;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
}

.action-btn {
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  border-radius: 4px;
}

/* Calendar Matrix Grid */
.calendar-matrix {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 1rem;
}

.calendar-matrix th,
.calendar-matrix td {
  padding: 0.5rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
  min-width: 40px;
}

.calendar-matrix th:first-child,
.calendar-matrix td:first-child {
  position: sticky;
  left: 0;
  background-color: var(--bg-secondary);
  z-index: 10;
  text-align: left;
  border-right: 2px solid rgba(255, 255, 255, 0.2);
  min-width: 200px;
  font-weight: 600;
}

.calendar-matrix th {
  background-color: rgba(15, 23, 42, 0.8);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
}

/* Status cell */
.status-cell {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 35px;
  width: 100%;
  border-radius: 6px;
  cursor: pointer;
  transition: transform 0.2s;
}

.status-cell:hover {
  transform: scale(1.1);
  z-index: 20;
}

.status-symbol {
  font-size: 1.2rem;
}

/* Custom Tooltip */
.status-cell .tooltip-content {
  visibility: hidden;
  position: absolute;
  bottom: 120%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  text-align: left;
  padding: 0.75rem;
  border-radius: 8px;
  width: max-content;
  max-width: 200px;
  font-size: 0.75rem;
  box-shadow: 0 10px 25px rgba(0,0,0,0.5);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 999;
}

.status-cell:hover .tooltip-content {
  visibility: visible;
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.tooltip-content::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -6px;
  border-width: 6px;
  border-style: solid;
  border-color: var(--border) transparent transparent transparent;
}

.tooltip-title {
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--accent-blue);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.25rem;
}

.tooltip-row {
  display: flex;
  justify-content: space-between;
  margin-top: 0.25rem;
  gap: 1rem;
}

.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-info { color: #0ea5e9; }
.text-muted { color: var(--text-secondary); }