/* DC MENA Vacation Management System — Apple Glass UI */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --primary: #0040FF;
  --primary-light: #4D7AFF;
  --primary-soft: #EBF0FF;
  --primary-glow: rgba(0, 64, 255, 0.15);

  --bg: #F2F4F7;
  --bg-white: #FFFFFF;
  --bg-glass: rgba(255, 255, 255, 0.65);
  --bg-glass-strong: rgba(255, 255, 255, 0.85);
  --bg-sidebar: #0A0E1A;
  --bg-sidebar-hover: rgba(255, 255, 255, 0.06);

  --text: #1A1D26;
  --text-secondary: #5A6178;
  --text-muted: #9CA3B8;
  --text-sidebar: rgba(255, 255, 255, 0.85);
  --text-sidebar-muted: rgba(255, 255, 255, 0.45);

  --border: rgba(0, 0, 0, 0.06);
  --border-glass: rgba(255, 255, 255, 0.5);
  --border-sidebar: rgba(255, 255, 255, 0.08);

  --success: #34C759;
  --warning: #FF9F0A;
  --danger: #FF3B30;
  --info: #007AFF;

  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 8px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
  --shadow: 0 4px 16px rgba(0,0,0,0.06), 0 1px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.1), 0 4px 12px rgba(0,0,0,0.05);
  --blur: blur(24px);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--primary-light); }

/* ─── Login Page ─── */
.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
  background: linear-gradient(135deg, #F8F9FC 0%, #E8ECFA 50%, #F0F2FF 100%);
  position: relative;
  overflow: hidden;
}

.login-container::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,64,255,0.08) 0%, transparent 70%);
  top: -200px; right: -100px;
  border-radius: 50%;
}

.login-container::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(0,64,255,0.06) 0%, transparent 70%);
  bottom: -100px; left: -50px;
  border-radius: 50%;
}

.login-box {
  background: var(--bg-glass-strong);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border-glass);
  border-radius: 24px;
  padding: 48px 44px;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 1;
}

.login-logo {
  text-align: center;
  margin-bottom: 36px;
}

.login-logo img {
  height: 48px;
  width: auto;
}

.login-title {
  text-align: center;
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-weight: 400;
  letter-spacing: -0.2px;
}

/* ─── Form Elements ─── */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 6px;
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-white);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  transition: all 0.2s;
  outline: none;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-glow);
}

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

select.form-control {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%239CA3B8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

textarea.form-control {
  resize: vertical;
  min-height: 80px;
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  letter-spacing: -0.1px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  width: 100%;
}
.btn-primary:hover { background: #0035D9; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,64,255,0.25); }
.btn-primary:active { transform: translateY(0); }

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #2DB84E; }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #E0352B; }

.btn-warning { background: var(--warning); color: #fff; }

.btn-outline {
  background: var(--bg-white);
  border: 1px solid rgba(0,0,0,0.1);
  color: var(--text-secondary);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }

.btn-sm { padding: 7px 14px; font-size: 12px; border-radius: var(--radius-xs); }
.btn-icon { padding: 8px; border-radius: var(--radius-xs); }

.error-message {
  background: rgba(255, 59, 48, 0.08);
  border: 1px solid rgba(255, 59, 48, 0.2);
  color: var(--danger);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-size: 13px;
  text-align: center;
}

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

/* ─── Sidebar (Dark) ─── */
.sidebar {
  width: 260px;
  background: var(--bg-sidebar);
  padding: 24px 0;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  overflow-y: auto;
  z-index: 100;
  transition: transform 0.3s;
}

.sidebar-brand {
  padding: 0 24px 24px;
  border-bottom: 1px solid var(--border-sidebar);
  margin-bottom: 16px;
}

.sidebar-brand img {
  height: 30px;
  width: auto;
  opacity: 0.95;
}

.sidebar-brand .sub {
  font-size: 11px;
  color: var(--text-sidebar-muted);
  display: block;
  margin-top: 8px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-weight: 500;
}

.sidebar-nav { list-style: none; padding: 0 12px; }

.sidebar-nav li a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  color: var(--text-sidebar);
  border-radius: var(--radius-xs);
  transition: all 0.2s;
  font-size: 13px;
  font-weight: 500;
}

.sidebar-nav li a:hover { background: var(--bg-sidebar-hover); }
.sidebar-nav li a.active {
  background: rgba(0, 64, 255, 0.2);
  color: #7BA3FF;
}

.sidebar-nav li a .icon { font-size: 16px; width: 24px; text-align: center; }

.sidebar-user {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 16px 24px;
  border-top: 1px solid var(--border-sidebar);
  background: var(--bg-sidebar);
}

.sidebar-user .user-info { display: flex; align-items: center; gap: 12px; }
.sidebar-user .avatar {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px; color: #fff;
}
.sidebar-user .name { font-size: 13px; font-weight: 600; color: var(--text-sidebar); }
.sidebar-user .role { font-size: 11px; color: var(--text-sidebar-muted); }

/* ─── Main Content ─── */
.main-content {
  flex: 1;
  margin-left: 260px;
  padding: 32px 40px;
  min-height: 100vh;
  background: var(--bg);
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}

.page-header h1 { font-size: 26px; font-weight: 700; letter-spacing: -0.5px; color: var(--text); }
.page-header .subtitle { color: var(--text-muted); font-size: 13px; margin-top: 4px; }

/* ─── Stats Cards (Glass) ─── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--bg-glass-strong);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  padding: 24px;
  transition: all 0.3s;
}
.stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }

.stat-card .stat-icon { font-size: 28px; margin-bottom: 12px; }
.stat-card .stat-value { font-size: 34px; font-weight: 800; letter-spacing: -1px; color: var(--text); }
.stat-card .stat-label { font-size: 13px; color: var(--text-muted); margin-top: 4px; font-weight: 500; }

.stat-card.highlight {
  background: linear-gradient(135deg, var(--primary), #2960FF);
  border-color: transparent;
  color: #fff;
}
.stat-card.highlight .stat-value { color: #fff; }
.stat-card.highlight .stat-label { color: rgba(255,255,255,0.7); }

/* ─── Cards / Glass Panels ─── */
.card {
  background: var(--bg-glass-strong);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

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

.card-header h2 { font-size: 15px; font-weight: 600; letter-spacing: -0.2px; }
.card-body { padding: 24px; }

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

table { width: 100%; border-collapse: collapse; }

th {
  text-align: left;
  padding: 12px 16px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,0.015);
}

td {
  padding: 14px 16px;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

tr:hover td { background: rgba(0, 64, 255, 0.02); }

/* ─── Badges ─── */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.badge-pending { background: rgba(255, 159, 10, 0.12); color: #C77D08; }
.badge-approved { background: rgba(52, 199, 89, 0.12); color: #248A3D; }
.badge-rejected { background: rgba(255, 59, 48, 0.12); color: #D70015; }
.badge-cancelled { background: rgba(0, 0, 0, 0.06); color: var(--text-muted); }

/* ─── Calendar ─── */
.calendar-container {
  background: var(--bg-glass-strong);
  backdrop-filter: var(--blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.fc { --fc-border-color: var(--border); }
.fc .fc-toolbar-title { font-size: 18px !important; font-weight: 600; letter-spacing: -0.3px; }
.fc .fc-button {
  background: var(--bg-white) !important;
  border-color: rgba(0,0,0,0.1) !important;
  color: var(--text-secondary) !important;
  font-size: 13px !important;
  border-radius: 8px !important;
  font-weight: 500 !important;
}
.fc .fc-button:hover { background: var(--primary-soft) !important; color: var(--primary) !important; }
.fc .fc-button-active { background: var(--primary) !important; color: #fff !important; border-color: var(--primary) !important; }
.fc .fc-daygrid-day { background: var(--bg-white); }
.fc .fc-daygrid-day:hover { background: var(--primary-soft); }
.fc .fc-day-today { background: rgba(0,64,255,0.04) !important; }
.fc .fc-col-header-cell { background: rgba(0,0,0,0.02); color: var(--text-muted); font-size: 12px; }
.fc .fc-daygrid-day-number { color: var(--text-secondary); font-size: 13px; }
.fc .fc-event { border-radius: 6px; padding: 2px 8px; font-size: 11px; border: none; font-weight: 500; }

/* ─── Modal (Glass) ─── */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}
.modal-overlay.active { display: flex; }

.modal {
  background: var(--bg-glass-strong);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 60px rgba(0,0,0,0.15);
}

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

.modal-header h3 { font-size: 16px; font-weight: 600; }

.modal-close {
  background: rgba(0,0,0,0.05); border: none;
  color: var(--text-muted); font-size: 18px;
  cursor: pointer; padding: 4px 8px;
  border-radius: 8px;
  transition: all 0.2s;
}
.modal-close:hover { background: rgba(0,0,0,0.1); color: var(--text); }

.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; gap: 12px; justify-content: flex-end; }

/* ─── Notification Bell ─── */
.notif-bell {
  position: relative;
  cursor: pointer;
  font-size: 20px;
  color: var(--text-secondary);
  padding: 8px;
  border-radius: 10px;
  transition: background 0.2s;
}
.notif-bell:hover { background: rgba(0,0,0,0.04); }

.notif-badge {
  position: absolute;
  top: 2px; right: 2px;
  background: var(--danger);
  color: #fff;
  font-size: 10px;
  width: 18px; height: 18px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  border: 2px solid var(--bg);
}

.notif-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 340px;
  background: var(--bg-glass-strong);
  backdrop-filter: var(--blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  z-index: 200;
  max-height: 400px;
  overflow-y: auto;
}
.notif-dropdown.active { display: block; }

.notif-item {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.notif-item.unread { background: var(--primary-soft); }
.notif-item .notif-title { font-weight: 600; margin-bottom: 2px; color: var(--text); }
.notif-item .notif-time { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

/* ─── Progress Bar ─── */
.progress-bar {
  height: 8px;
  background: rgba(0,0,0,0.06);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.6s ease;
}

/* ─── Toast ─── */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: #fff;
  box-shadow: var(--shadow-lg);
  animation: slideIn 0.3s ease;
  max-width: 360px;
  backdrop-filter: var(--blur);
}

.toast-success { background: rgba(52, 199, 89, 0.95); }
.toast-error { background: rgba(255, 59, 48, 0.95); }
.toast-info { background: rgba(0, 122, 255, 0.95); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ─── Days Bar (Admin) ─── */
.employee-row .days-bar {
  display: flex;
  align-items: center;
  gap: 8px;
}

.days-bar .bar {
  flex: 1; height: 6px;
  background: rgba(0,0,0,0.06);
  border-radius: 3px;
  overflow: hidden;
}

.days-bar .bar-fill { height: 100%; border-radius: 3px; background: var(--success); transition: width 0.5s; }
.days-bar .bar-fill.warning { background: var(--warning); }
.days-bar .bar-fill.danger { background: var(--danger); }

/* ─── Mobile ─── */
.mobile-toggle {
  display: none;
  position: fixed;
  top: 16px; left: 16px;
  z-index: 200;
  background: var(--bg-glass-strong);
  backdrop-filter: var(--blur);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  padding: 8px 12px;
  color: var(--text);
  cursor: pointer;
  font-size: 20px;
  box-shadow: var(--shadow);
}

@media (max-width: 768px) {
  .mobile-toggle { display: block; }
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; padding: 20px 16px; padding-top: 60px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .page-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .modal { width: 95%; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .login-box { padding: 36px 24px; }
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 480px) {
  .form-row { grid-template-columns: 1fr; }
}

/* ─── Tabs ─── */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.tab {
  padding: 12px 20px;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

.tab:hover { color: var(--text-secondary); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

.tab-content { display: none; }
.tab-content.active { display: block; }

/* ─── Spinner ─── */
.spinner {
  display: inline-block;
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }