/*
 * TimeOff - Modern Glass Design System
 * Clean, minimal, and sophisticated
 */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

/* ============================================
   CSS Custom Properties
   ============================================ */
:root {
  /* Colors - Modern Cool Palette */
  --color-bg: #F8FAFC;
  --color-bg-elevated: #FFFFFF;
  --color-bg-subtle: #F1F5F9;
  --color-bg-muted: #E2E8F0;

  --color-ink: #0F172A;
  --color-ink-secondary: #475569;
  --color-ink-muted: #64748B;
  --color-ink-subtle: #94A3B8;

  --color-primary: #6366F1;
  --color-primary-light: #818CF8;
  --color-primary-dark: #4F46E5;
  --color-primary-soft: #EEF2FF;

  --color-accent: #06B6D4;
  --color-accent-soft: #ECFEFF;

  --color-success: #10B981;
  --color-success-soft: #D1FAE5;

  --color-warning: #F59E0B;
  --color-warning-soft: #FEF3C7;

  --color-danger: #EF4444;
  --color-danger-soft: #FEE2E2;

  --color-info: #3B82F6;
  --color-info-soft: #DBEAFE;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
  --gradient-accent: linear-gradient(135deg, #06B6D4 0%, #3B82F6 100%);
  --gradient-warm: linear-gradient(135deg, #F59E0B 0%, #EF4444 100%);
  --gradient-cool: linear-gradient(135deg, #10B981 0%, #06B6D4 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.6) 100%);

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 2px 4px -1px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -2px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
  --shadow-inner: inset 0 2px 4px rgba(15, 23, 42, 0.04);

  /* Borders */
  --border-subtle: 1px solid rgba(15, 23, 42, 0.08);
  --border-default: 1px solid rgba(15, 23, 42, 0.12);
  --border-strong: 1px solid rgba(15, 23, 42, 0.2);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-2xl: 28px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --sidebar-width: 260px;
  --header-height: 64px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-ink);
}

h1 { font-size: var(--text-4xl); font-weight: 700; }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

/* ============================================
   Layout Components
   ============================================ */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Trial Banner */
.trial-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 100%);
  border-bottom: 1px solid #6366F1;
  padding: 8px 20px;
  text-align: center;
  font-size: 13px;
  color: #4338CA;
  height: 40px;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
}

.trial-banner.warning {
  background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%);
  border-bottom-color: #F59E0B;
  color: #92400E;
}

.trial-banner.urgent {
  background: linear-gradient(135deg, #FEE2E2 0%, #FECACA 100%);
  border-bottom-color: #EF4444;
  color: #991B1B;
}

.trial-banner-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.trial-banner-text {
  display: flex;
  align-items: center;
  gap: 8px;
}

.trial-banner-btn {
  background: #4F46E5;
  color: white !important;
  padding: 5px 14px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 500;
  font-size: 12px;
  transition: background 0.2s;
}

.trial-banner-btn:hover {
  background: #4338CA;
}

.trial-banner.warning .trial-banner-btn {
  background: #D97706;
}

.trial-banner.warning .trial-banner-btn:hover {
  background: #B45309;
}

.trial-banner.urgent .trial-banner-btn {
  background: #DC2626;
}

.trial-banner.urgent .trial-banner-btn:hover {
  background: #B91C1C;
}

/* Décalage du layout quand la bannière d'essai est présente */
.app-container.has-trial-banner {
  padding-top: 40px;
}

.app-container.has-trial-banner .sidebar {
  top: 40px;
  height: calc(100vh - 40px);
}

.app-container.has-trial-banner .main-content {
  min-height: calc(100vh - 40px);
}

/* Sidebar */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--color-bg-elevated);
  border-right: var(--border-subtle);
  display: flex;
  flex-direction: column;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.sidebar-header {
  padding: var(--space-5) var(--space-5);
  border-bottom: var(--border-subtle);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--text-lg);
  color: white;
  box-shadow: var(--shadow-md);
}

.logo-img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
}

.logo-full-img {
  height: 36px;
  width: auto;
}

.logo-text {
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-ink);
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-4);
  overflow-y: auto;
}

.nav-section {
  margin-bottom: var(--space-6);
}

.nav-section-title {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-1);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-3);
  color: var(--color-ink-secondary);
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: var(--text-sm);
  transition: var(--transition-fast);
}

.nav-link:hover {
  background: var(--color-bg-subtle);
  color: var(--color-ink);
}

.nav-link.active {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.nav-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  opacity: 0.7;
}

.nav-link.active .nav-icon {
  opacity: 1;
}

.nav-badge {
  margin-left: auto;
  background: var(--color-primary);
  color: white;
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  min-width: 20px;
  text-align: center;
}

.sidebar-footer {
  padding: var(--space-4);
  border-top: var(--border-subtle);
}

.user-menu {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: var(--transition-fast);
}

.user-menu:hover {
  background: var(--color-bg-subtle);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: var(--text-sm);
}

.user-info {
  flex: 1;
  min-width: 0;
}

.user-name {
  font-weight: 600;
  font-size: var(--text-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

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

.main-header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  background: rgba(248, 250, 252, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-8);
  z-index: 50;
}

.page-title {
  font-size: var(--text-xl);
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.main-body {
  flex: 1;
  padding: var(--space-8);
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

/* ============================================
   Cards
   ============================================ */
.card {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: var(--border-subtle);
  transition: var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-static {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: var(--border-subtle);
}

.card-glass {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: var(--shadow-lg);
}

.card-header {
  padding: var(--space-5) var(--space-6);
  border-bottom: var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-size: var(--text-base);
  font-weight: 600;
}

.card-body {
  padding: var(--space-6);
}

.card-footer {
  padding: var(--space-4) var(--space-6);
  border-top: var(--border-subtle);
  background: var(--color-bg-subtle);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
  background: var(--color-bg-elevated);
  color: var(--color-ink-secondary);
  border: var(--border-default);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-bg-subtle);
  border-color: rgba(15, 23, 42, 0.2);
}

.btn-accent {
  background: var(--gradient-cool);
  color: white;
  box-shadow: 0 2px 8px rgba(6, 182, 212, 0.3);
}

.btn-accent:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(6, 182, 212, 0.4);
}

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

.btn-danger:hover:not(:disabled) {
  background: #DC2626;
}

.btn-ghost {
  background: transparent;
  color: var(--color-ink-secondary);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--color-bg-subtle);
  color: var(--color-ink);
}

.btn-sm {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-md);
}

/* ============================================
   Forms
   ============================================ */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  margin-bottom: var(--space-2);
  color: var(--color-ink-secondary);
}

.form-label-required::after {
  content: '*';
  color: var(--color-danger);
  margin-left: var(--space-1);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  background: var(--color-bg-elevated);
  border: var(--border-default);
  border-radius: var(--radius-lg);
  transition: var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
}

.form-input::placeholder {
  color: var(--color-ink-subtle);
}

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

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  background-size: 18px;
  padding-right: var(--space-10);
}

.form-checkbox,
.form-radio {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--text-sm);
}

.form-checkbox input,
.form-radio input {
  width: 18px;
  height: 18px;
  border: var(--border-default);
  border-radius: var(--radius-sm);
  background: var(--color-bg-elevated);
  cursor: pointer;
  appearance: none;
  transition: var(--transition-fast);
}

.form-radio input {
  border-radius: var(--radius-full);
}

.form-checkbox input:checked,
.form-radio input:checked {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.form-error {
  font-size: var(--text-sm);
  color: var(--color-danger);
  margin-top: var(--space-2);
}

.form-hint {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  margin-top: var(--space-2);
}

/* ============================================
   Stat Cards
   ============================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}

.stat-card {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  border: var(--border-subtle);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--stat-color, var(--gradient-primary));
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.stat-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  background: var(--stat-bg, var(--color-primary-soft));
  color: var(--stat-color, var(--color-primary));
}

.stat-value {
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1;
  margin-bottom: var(--space-1);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

/* ============================================
   Balance Cards
   ============================================ */
.balance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-4);
}

.balance-card {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  border: var(--border-subtle);
  box-shadow: var(--shadow-sm);
}

.balance-type {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.balance-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
}

.balance-name {
  font-weight: 500;
  font-size: var(--text-sm);
  color: var(--color-ink-secondary);
}

.balance-value {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-1);
}

.balance-detail {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.balance-bar {
  height: 6px;
  background: var(--color-bg-muted);
  border-radius: var(--radius-full);
  margin-top: var(--space-3);
  overflow: hidden;
}

.balance-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

/* ============================================
   Request Cards
   ============================================ */
.request-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.request-card {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-xl);
  border: var(--border-subtle);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  align-items: center;
  transition: var(--transition-base);
  box-shadow: var(--shadow-xs);
}

.request-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(99, 102, 241, 0.2);
}

.request-type-badge {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--text-sm);
}

.request-info {
  min-width: 0;
}

.request-dates {
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.request-meta {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.request-status {
  text-align: right;
}

/* ============================================
   Status Badges
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 500;
  border-radius: var(--radius-full);
}

.badge-success {
  background: var(--color-success-soft);
  color: var(--color-success);
}

.badge-warning {
  background: var(--color-warning-soft);
  color: #B45309;
}

.badge-danger {
  background: var(--color-danger-soft);
  color: var(--color-danger);
}

.badge-info {
  background: var(--color-info-soft);
  color: var(--color-info);
}

.badge-secondary {
  background: var(--color-bg-muted);
  color: var(--color-ink-muted);
}

/* ============================================
   Tables
   ============================================ */
.table-container {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-xl);
  border: var(--border-subtle);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

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

.table th {
  text-align: left;
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
  background: var(--color-bg-subtle);
  border-bottom: var(--border-subtle);
}

.table td {
  padding: var(--space-4) var(--space-5);
  border-bottom: var(--border-subtle);
  font-size: var(--text-sm);
}

.table tr:last-child td {
  border-bottom: none;
}

.table tr:hover td {
  background: var(--color-bg-subtle);
}

/* ============================================
   Alerts & Toasts
   ============================================ */
.alert {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.alert-success {
  background: var(--color-success-soft);
  color: #065F46;
}

.alert-warning {
  background: var(--color-warning-soft);
  color: #92400E;
}

.alert-danger, .alert-error {
  background: var(--color-danger-soft);
  color: #991B1B;
}

.alert-info {
  background: var(--color-info-soft);
  color: #1E40AF;
}

.toast-container {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.toast {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--space-4) var(--space-5);
  min-width: 300px;
  max-width: 400px;
  animation: slideIn var(--transition-base) forwards;
  border-left: 4px solid var(--color-primary);
}

.toast.alert-success { border-left-color: var(--color-success); }
.toast.alert-warning { border-left-color: var(--color-warning); }
.toast.alert-danger, .toast.alert-error { border-left-color: var(--color-danger); }

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

/* ============================================
   Modal
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--space-6);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
}

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

.modal {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow: auto;
  transform: scale(0.95) translateY(10px);
  transition: var(--transition-base);
}

.modal-overlay.active .modal {
  transform: scale(1) translateY(0);
}

.modal-header {
  padding: var(--space-5) var(--space-6);
  border-bottom: var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: var(--text-lg);
  font-weight: 600;
}

.modal-body {
  padding: var(--space-6);
}

.modal-footer {
  padding: var(--space-4) var(--space-6);
  border-top: var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  background: var(--color-bg-subtle);
}

/* ============================================
   Empty State
   ============================================ */
.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-8);
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-5);
  background: var(--color-bg-muted);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ink-muted);
}

.empty-state-title {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.empty-state-text {
  color: var(--color-ink-muted);
  margin-bottom: var(--space-5);
  max-width: 300px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   Notifications
   ============================================ */
.notifications-dropdown {
  position: relative;
}

.notifications-btn {
  position: relative;
}

.notifications-count {
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--color-danger);
  color: white;
  font-size: 10px;
  font-weight: 600;
  width: 18px;
  height: 18px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-bg);
}

.notifications-panel {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--space-2);
  width: 360px;
  background: var(--color-bg-elevated);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: var(--border-subtle);
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transition-fast);
}

.notifications-dropdown.open .notifications-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.notifications-header {
  padding: var(--space-4) var(--space-5);
  border-bottom: var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.notifications-list {
  max-height: 400px;
  overflow-y: auto;
}

.notification-item {
  padding: var(--space-4) var(--space-5);
  border-bottom: var(--border-subtle);
  cursor: pointer;
  transition: var(--transition-fast);
}

.notification-item:hover {
  background: var(--color-bg-subtle);
}

.notification-item.unread {
  background: var(--color-primary-soft);
}

.notification-title {
  font-weight: 500;
  font-size: var(--text-sm);
  margin-bottom: var(--space-1);
}

.notification-message {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  margin-bottom: var(--space-2);
}

.notification-time {
  font-size: var(--text-xs);
  color: var(--color-ink-subtle);
}

/* ============================================
   Calendar Styling
   ============================================ */
.calendar-wrapper {
  padding: var(--space-6);
}

#calendar {
  --fc-border-color: var(--color-bg-muted);
  --fc-button-bg-color: var(--color-bg-elevated);
  --fc-button-border-color: var(--color-bg-muted);
  --fc-button-text-color: var(--color-ink-secondary);
  --fc-button-hover-bg-color: var(--color-bg-subtle);
  --fc-button-active-bg-color: var(--color-primary);
  --fc-button-active-border-color: var(--color-primary);
  --fc-today-bg-color: var(--color-primary-soft);
  --fc-event-border-color: transparent;
}

.fc .fc-toolbar-title {
  font-size: var(--text-xl);
  font-weight: 600;
}

.fc .fc-button {
  font-family: var(--font-sans);
  font-weight: 500;
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
}

.fc .fc-event {
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  padding: 2px 6px;
}

/* ============================================
   Utility Classes
   ============================================ */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

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

.w-full { width: 100%; }
.h-full { height: 100%; }

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-muted { color: var(--color-ink-muted); }
.text-subtle { color: var(--color-ink-subtle); }
.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }

.bg-primary-soft { background: var(--color-primary-soft); }
.bg-success-soft { background: var(--color-success-soft); }
.bg-danger-soft { background: var(--color-danger-soft); }
.bg-warning-soft { background: var(--color-warning-soft); }

.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.ml-auto { margin-left: auto; }

.p-0 { padding: 0; }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

.animate-fade-in {
  animation: fadeIn var(--transition-base) forwards;
}

.animate-slide-up {
  animation: slideUp var(--transition-base) forwards;
}

/* Stagger */
.stagger-1 { animation-delay: 0.05s; }
.stagger-2 { animation-delay: 0.1s; }
.stagger-3 { animation-delay: 0.15s; }
.stagger-4 { animation-delay: 0.2s; }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: var(--transition-base);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
  }

  .main-header {
    padding: 0 var(--space-4);
  }

  .main-body {
    padding: var(--space-4);
  }

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

  .request-card {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .request-status {
    text-align: left;
  }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
  .sidebar,
  .main-header,
  .btn,
  .notifications-dropdown {
    display: none !important;
  }

  .main-content {
    margin-left: 0;
  }

  .card, .card-static {
    box-shadow: none;
    border: 1px solid #ddd;
  }
}