/*
 * FIDELIS PREMIUM - Design System
 * Version 2.0 - Modern SaaS Health Tech
 * ========================================
 * Couleurs:
 * - Primary: #3B82F6 (Bleu doux)
 * - Secondary: #8B5CF6 (Violet pastel)
 * - Accent: #F97316 (Orange léger)
 * - Success: #10B981 (Vert émeraude)
 * - Background: #F8FAFC (Gris très clair)
 * - Surface: #FFFFFF (Blanc)
 * - Dark: #0F172A (Slate 900)
 */

/* Tailwind CDN Import - will be loaded in base template */
/* This file contains custom utilities and overrides */

/* ============================================
   CUSTOM PROPERTIES & THEME
   ============================================ */
:root {
  /* Primary Colors */
  --color-primary: #3B82F6;
  --color-primary-50: #EFF6FF;
  --color-primary-100: #DBEAFE;
  --color-primary-200: #BFDBFE;
  --color-primary-500: #3B82F6;
  --color-primary-600: #2563EB;
  --color-primary-700: #1D4ED8;

  /* Secondary (Violet) */
  --color-secondary: #8B5CF6;
  --color-secondary-50: #F5F3FF;
  --color-secondary-100: #EDE9FE;
  --color-secondary-500: #8B5CF6;

  /* Accent (Orange) */
  --color-accent: #F97316;
  --color-accent-50: #FFF7ED;
  --color-accent-100: #FFEDD5;
  --color-accent-500: #F97316;

  /* Semantic Colors */
  --color-success: #10B981;
  --color-success-50: #ECFDF5;
  --color-warning: #F59E0B;
  --color-warning-50: #FFFBEB;
  --color-danger: #EF4444;
  --color-danger-50: #FEF2F2;
  --color-info: #06B6D4;

  /* Neutral Colors */
  --color-background: #F8FAFC;
  --color-surface: #FFFFFF;
  --color-border: #E2E8F0;
  --color-text: #1E293B;
  --color-text-secondary: #64748B;
  --color-text-muted: #94A3B8;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius: 0.5rem;
  --radius-md: 0.625rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.25rem;
  --radius-3xl: 1.5rem;
  --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-slower: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Spacing */
  --header-height: 72px;
  --sidebar-width: 280px;
  --sidebar-collapsed: 72px;
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --color-background: #0F172A;
  --color-surface: #1E293B;
  --color-border: #334155;
  --color-text: #F1F5F9;
  --color-text-secondary: #94A3B8;
  --color-text-muted: #64748B;
}

/* ============================================
   BASE STYLES
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--color-background);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-text);
}

/* ============================================
   LAYOUT COMPONENTS
   ============================================ */

/* App Container */
.app-container {
  display: flex;
  min-height: 100vh;
}

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

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

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-primary);
  text-decoration: none;
}

.sidebar-logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem 1rem;
}

.sidebar-section {
  margin-bottom: 1.5rem;
}

.sidebar-section-title {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  padding: 0 0.75rem;
  margin-bottom: 0.5rem;
}

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

.sidebar-nav-item {
  margin-bottom: 0.25rem;
}

.sidebar-nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius-lg);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.sidebar-nav-link:hover {
  background: var(--color-primary-50);
  color: var(--color-primary);
}

.sidebar-nav-link.active {
  background: var(--color-primary-50);
  color: var(--color-primary);
  font-weight: 600;
}

.sidebar-nav-link.active .nav-icon {
  color: var(--color-primary);
}

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

.nav-badge {
  margin-left: auto;
  background: var(--color-danger);
  color: white;
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-full);
}

/* Baby Card in Sidebar */
.sidebar-baby-card {
  background: linear-gradient(135deg, var(--color-primary-50), var(--color-secondary-50));
  border-radius: var(--radius-xl);
  padding: 1rem;
  margin: 0 0.5rem;
}

.sidebar-baby-photo {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 3px solid white;
  box-shadow: var(--shadow);
}

.sidebar-baby-placeholder {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

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

/* Header */
.top-header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
}

[data-theme="dark"] .top-header {
  background: rgba(15, 23, 42, 0.8);
}

.header-search {
  position: relative;
  width: 320px;
}

.header-search-input {
  width: 100%;
  padding: 0.625rem 1rem 0.625rem 2.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-background);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.header-search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-100);
}

.header-search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  width: 18px;
  height: 18px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-btn {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.header-btn:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary-200);
  color: var(--color-primary);
}

.header-btn-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 18px;
  height: 18px;
  background: var(--color-danger);
  color: white;
  font-size: 0.625rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid white;
}

.header-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.375rem 0.375rem 0.375rem 0.75rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.header-user:hover {
  border-color: var(--color-primary-200);
  box-shadow: var(--shadow-sm);
}

.header-user-info {
  text-align: right;
}

.header-user-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.25;
}

.header-user-role {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.header-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

/* Content Area */
.content-area {
  flex: 1;
  padding: 2rem;
  max-width: 1600px;
  margin: 0 auto;
  width: 100%;
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

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

.card-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--color-border);
  background: var(--color-background);
  border-radius: 0 0 var(--radius-2xl) var(--radius-2xl);
}

/* Stat Card */
.stat-card {
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.stat-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.stat-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-card-icon.blue {
  background: var(--color-primary-50);
  color: var(--color-primary);
}

.stat-card-icon.violet {
  background: var(--color-secondary-50);
  color: var(--color-secondary);
}

.stat-card-icon.orange {
  background: var(--color-accent-50);
  color: var(--color-accent);
}

.stat-card-icon.green {
  background: var(--color-success-50);
  color: var(--color-success);
}

.stat-card-label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
}

.stat-card-value {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
}

.stat-card-change {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  font-weight: 500;
  margin-top: 0.5rem;
}

.stat-card-change.positive {
  color: var(--color-success);
}

.stat-card-change.negative {
  color: var(--color-danger);
}

/* Feature Card */
.feature-card {
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  height: 100%;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary-200);
}

.feature-card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.feature-card-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.feature-card-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Advice Card */
.advice-card {
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  display: flex;
  gap: 1rem;
}

.advice-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-200);
}

.advice-card-priority {
  width: 4px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.advice-card-priority.high {
  background: var(--color-danger);
}

.advice-card-priority.medium {
  background: var(--color-warning);
}

.advice-card-priority.low {
  background: var(--color-success);
}

.advice-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.advice-card-content {
  flex: 1;
}

.advice-card-title {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--color-text);
}

.advice-card-text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.advice-card-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  margin-top: 0.75rem;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

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

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

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-600);
  border-color: var(--color-primary-600);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

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

.btn-secondary:hover:not(:disabled) {
  background: #7C3AED;
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

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

.btn-accent:hover:not(:disabled) {
  background: #EA580C;
  box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-outline:hover:not(:disabled) {
  background: var(--color-background);
  border-color: var(--color-text-secondary);
}

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

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

.btn-sm {
  padding: 0.375rem 0.875rem;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
}

.btn-xl {
  padding: 1rem 2rem;
  font-size: 1.0625rem;
  border-radius: var(--radius-xl);
}

.btn-full {
  width: 100%;
}

.btn-icon {
  padding: 0.625rem;
}

/* Fab Button */
.fab {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
  border: none;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 40;
}

.fab:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-2xl);
}

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

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.form-label-required::after {
  content: '*';
  color: var(--color-danger);
  margin-left: 0.25rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-size: 0.9375rem;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all 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-100);
}

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

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

.form-hint {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 0.375rem;
}

.form-error {
  font-size: 0.8125rem;
  color: var(--color-danger);
  margin-top: 0.375rem;
}

/* ============================================
   BADGES & TAGS
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge-blue {
  background: var(--color-primary-50);
  color: var(--color-primary-700);
}

.badge-violet {
  background: var(--color-secondary-50);
  color: var(--color-secondary);
}

.badge-green {
  background: var(--color-success-50);
  color: #047857;
}

.badge-orange {
  background: var(--color-accent-50);
  color: #C2410C;
}

.badge-red {
  background: var(--color-danger-50);
  color: #DC2626;
}

.badge-gray {
  background: var(--color-background);
  color: var(--color-text-secondary);
}

/* ============================================
   ALERTS
   ============================================ */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-xl);
  border: 1px solid transparent;
}

.alert-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.alert-content {
  flex: 1;
}

.alert-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.alert-text {
  font-size: 0.875rem;
  opacity: 0.9;
}

.alert-blue {
  background: var(--color-primary-50);
  border-color: var(--color-primary-200);
  color: var(--color-primary-700);
}

.alert-green {
  background: var(--color-success-50);
  border-color: #A7F3D0;
  color: #047857;
}

.alert-orange {
  background: var(--color-warning-50);
  border-color: #FCD34D;
  color: #B45309;
}

.alert-red {
  background: var(--color-danger-50);
  border-color: #FECACA;
  color: #DC2626;
}

/* ============================================
   EMPTY STATES
   ============================================ */
.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
}

.empty-state-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: var(--color-background);
  border-radius: var(--radius-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
}

.empty-state-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.empty-state-text {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  max-width: 320px;
  margin: 0 auto 1.5rem;
}

/* ============================================
   TIMELINE
   ============================================ */
.timeline {
  position: relative;
  padding-left: 1.5rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-bottom: 1.5rem;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -1.5rem;
  top: 0.25rem;
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  border: 2px solid var(--color-surface);
  transform: translateX(-5px);
}

.timeline-content {
  background: var(--color-background);
  border-radius: var(--radius-lg);
  padding: 1rem;
}

.timeline-date {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.timeline-title {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.timeline-text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

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

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

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.animate-fadeIn {
  animation: fadeIn 0.5s ease-out;
}

.animate-fadeInUp {
  animation: fadeInUp 0.5s ease-out;
}

.animate-slideInRight {
  animation: slideInRight 0.4s ease-out;
}

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

.animate-bounce {
  animation: bounce 2s infinite;
}

.animate-spin {
  animation: spin 1s linear infinite;
}

/* Stagger animations for lists */
.stagger-1 { animation-delay: 0.05s; }
.stagger-2 { animation-delay: 0.1s; }
.stagger-3 { animation-delay: 0.15s; }
.stagger-4 { animation-delay: 0.2s; }
.stagger-5 { animation-delay: 0.25s; }

/* ============================================
   SKELETON LOADING
   ============================================ */
.skeleton {
  background: linear-gradient(90deg, var(--color-background) 25%, #E2E8F0 50%, var(--color-background) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-text {
  height: 1em;
  margin-bottom: 0.5rem;
}

.skeleton-title {
  height: 1.5em;
  width: 60%;
  margin-bottom: 0.75rem;
}

.skeleton-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
}

.skeleton-card {
  height: 120px;
  border-radius: var(--radius-xl);
}

/* ============================================
   MOBILE NAVIGATION (BOTTOM BAR)
   ============================================ */
.mobile-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  display: none;
  z-index: 50;
}

.mobile-nav-list {
  display: flex;
  justify-content: space-around;
  align-items: center;
  height: 100%;
  list-style: none;
  padding: 0 0.5rem;
}

.mobile-nav-item {
  flex: 1;
}

.mobile-nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.6875rem;
  transition: color var(--transition-fast);
}

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

.mobile-nav-icon {
  width: 24px;
  height: 24px;
}

/* ============================================
   DROPDOWN MENU
   ============================================ */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 200px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: 0.5rem;
  margin-top: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  z-index: 100;
}

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

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius-lg);
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.875rem;
  transition: background var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--color-background);
}

.dropdown-divider {
  height: 1px;
  background: var(--color-border);
  margin: 0.5rem 0;
}

/* ============================================
   MODAL
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

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

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow: hidden;
  transform: scale(0.95);
  transition: transform var(--transition-fast);
}

.modal-overlay.open .modal {
  transform: scale(1);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  max-height: 60vh;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* ============================================
   PROGRESS & METERS
   ============================================ */
.progress {
  height: 8px;
  background: var(--color-background);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

/* ============================================
   TABS
   ============================================ */
.tabs {
  display: flex;
  gap: 0.25rem;
  padding: 0.25rem;
  background: var(--color-background);
  border-radius: var(--radius-lg);
  width: fit-content;
}

.tab {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  background: transparent;
}

.tab:hover {
  color: var(--color-text);
}

.tab.active {
  background: var(--color-surface);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

/* ============================================
   LANDING PAGE SPECIFIC
   ============================================ */
.landing-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #EFF6FF 0%, #F5F3FF 50%, #FFF7ED 100%);
  overflow: hidden;
}

.landing-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.landing-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: white;
  border: 1px solid var(--color-primary-200);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
}

.landing-hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-text);
  margin-bottom: 1.5rem;
}

.landing-hero-title span {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.landing-hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 540px;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.landing-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 2rem;
  transition: all var(--transition-base);
}

.landing-nav.scrolled {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}

.landing-section {
  padding: 6rem 2rem;
}

.landing-section-title {
  text-align: center;
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.landing-section-subtitle {
  text-align: center;
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto 3rem;
}

/* ============================================
   CHARTS & DATA VIZ
   ============================================ */
.chart-container {
  position: relative;
  height: 250px;
}

.bar-chart {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  height: 100%;
  gap: 0.5rem;
  padding: 1rem 0;
}

.bar-chart-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.bar-chart-bar {
  width: 100%;
  max-width: 40px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius) var(--radius) 0 0;
  transition: height var(--transition-slow);
  position: relative;
}

.bar-chart-bar:hover {
  opacity: 0.8;
}

.bar-chart-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.bar-chart-value {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.bar-chart-bar:hover .bar-chart-value {
  opacity: 1;
}

/* ============================================
   CHAT / AI INTERFACE
   ============================================ */
.chat-container {
  display: flex;
  flex-direction: column;
  height: 500px;
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.chat-message {
  display: flex;
  gap: 0.75rem;
  max-width: 80%;
}

.chat-message.user {
  margin-left: auto;
  flex-direction: row-reverse;
}

.chat-message-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 600;
}

.chat-message-avatar.ai {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
}

.chat-message-avatar.user {
  background: var(--color-background);
  color: var(--color-text);
}

.chat-message-content {
  background: var(--color-background);
  padding: 0.875rem 1rem;
  border-radius: var(--radius-xl);
  font-size: 0.9375rem;
  line-height: 1.5;
}

.chat-message.user .chat-message-content {
  background: var(--color-primary);
  color: white;
}

.chat-input-area {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: 0.75rem;
}

.chat-input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  transition: all var(--transition-fast);
}

.chat-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-100);
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }

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

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

  .sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 45;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
  }

  .sidebar-overlay.open {
    opacity: 1;
    visibility: visible;
  }

  .header-search {
    width: 240px;
  }

  .header-user-info {
    display: none;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .top-header {
    padding: 0 1rem;
  }

  .header-search {
    display: none;
  }

  .content-area {
    padding: 1rem;
    padding-bottom: 80px;
  }

  .mobile-nav {
    display: block;
  }

  .fab {
    bottom: 80px;
    right: 1rem;
  }

  .stat-card-value {
    font-size: 1.5rem;
  }

  .landing-hero {
    padding: 6rem 1.5rem;
    min-height: auto;
  }

  .landing-section {
    padding: 4rem 1.5rem;
  }

  .landing-hero-title {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .header-btn:not(.header-btn-notifications) {
    display: none;
  }

  .card-body {
    padding: 1rem;
  }

  .stat-card {
    padding: 1rem;
  }

  .btn-xl {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
  }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-gradient {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-gradient {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
}

.bg-gradient-soft {
  background: linear-gradient(135deg, var(--color-primary-50), var(--color-secondary-50));
}

.glass {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

[data-theme="dark"] .glass {
  background: rgba(15, 23, 42, 0.8);
}

/* Focus visible for accessibility */
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Selection color */
::selection {
  background: var(--color-primary-200);
  color: var(--color-primary-700);
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-background);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* Print styles */
@media print {
  .sidebar,
  .mobile-nav,
  .top-header,
  .fab {
    display: none !important;
  }

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