/* ========================================
   BASE.CSS - STYLES GLOBAUX ISYTEM
   Variables, typographies et composants réutilisables
   ======================================== */

/* ===================
   VARIABLES CSS
   =================== */
   :root {
    /* Couleurs principales */
    --color-primary: #4230D6;        /* Bleu Majesté */
    --color-accent: #FF8000;         /* Orange Flamme */
    --color-secondary: #C4A9FA;      /* Mauve */
    --color-tertiary: #80FFE8;       /* Cyan */
    
    /* Couleurs neutres */
    --color-dark: #171615;           /* Noir profond */
    --color-light: #F8F4EC;          /* Blanc doux */
    --color-text: #171615;
    --color-background: #F8F4EC;
    
    /* Spacing (multiples de 4 ou 8) */
    --spacing-xs: 0.5rem;    /* 8px */
    --spacing-sm: 1rem;      /* 16px */
    --spacing-md: 1.5rem;    /* 24px */
    --spacing-lg: 2rem;      /* 32px */
    --spacing-xl: 3rem;      /* 48px */
    --spacing-xxl: 4rem;     /* 64px */
    --spacing-xxxl: 6rem;    /* 96px */
    
    /* Layout */
    --container-max-width: 1440px;
    --header-height: 80px;
    --banner-height: 40px;
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-primary: 0 4px 12px rgba(66, 48, 214, 0.2);
    --shadow-accent: 0 4px 12px rgba(255, 128, 0, 0.2);
  }
  
  /* ===================
     TYPOGRAPHIES
     =================== */

  /* ===================
     RESET & BASE STYLES
     =================== */
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  html {
    scroll-behavior: smooth;
  }
  
  body {
    font-family: 'Kanit', sans-serif;
    font-weight: 300;
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  /* ===================
     TYPOGRAPHIE GLOBALE
     =================== */
  h1 {
    font-family: 'Baloo 2', cursive;
    font-weight: 700;
    line-height: 1.2;
  }
  
  h2 {
    font-family: 'Baloo 2', cursive;
    font-weight: 600;
    line-height: 1.3;
  }
  
  h3, h4, h5, h6 {
    font-family: 'Kanit', sans-serif;
    font-weight: 600;
    line-height: 1.4;
  }
  
  p {
    font-family: 'Kanit', sans-serif;
    font-weight: 300;
    line-height: 1.7;
  }
  
  a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-normal);
  }
  
  a:hover {
    color: var(--color-primary);
  }
  
  /* ===================
     CONTAINER PRINCIPAL
     =================== */
  .container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
  }
  
  /* ===================
     MAIN CONTENT
     =================== */
  .main {
    min-height: 100vh;
  }
  
  /* ===================
     BOUTONS (COMPOSANTS RÉUTILISABLES)
     =================== */
  .btn {
    display: inline-block;
    font-family: 'Kanit', sans-serif;
    font-weight: 500;
    text-transform: uppercase;
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
    font-size: 1rem;
    letter-spacing: 0.5px;
    text-align: center;
    white-space: nowrap;
  }

  .form-honeypot {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
  }
  
  .btn:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
  }
  
  /* Bouton primaire - Bleu Majesté */
  .btn--primary {
    background-color: var(--color-primary);
    color: var(--color-light);
    border-color: var(--color-primary);
  }
  
  .btn--primary:hover {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
  }
  
  /* Bouton secondaire - Orange Flamme */
.btn--secondary {
  background-color: transparent;
  color: var(--color-dark);
  border-color: var(--color-dark);
}

.btn--secondary:hover {
  background-color: var(--color-accent);
  color: var(--color-light);
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}

/* Bouton secondaire light - Pour fonds foncés */
.btn--secondary-light {
  background-color: transparent;
  color: var(--color-light);
  border-color: var(--color-light);
}

.btn--secondary-light:hover {
  background-color: var(--color-accent);
  color: var(--color-light);
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}

  /* Bouton outline */
  .btn--outline {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
  }
  
  .btn--outline:hover {
    background-color: var(--color-primary);
    color: var(--color-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
  }
  
  /* Bouton light (sur fond foncé) */
  /* Tailles de boutons */
  .btn--sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
  }
  
  .btn--lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
  }
  
  /* Bouton full-width */
  .btn--block {
    width: 100%;
    display: block;
  }
  
  /* ===================
     CARTES (COMPOSANTS RÉUTILISABLES)
     =================== */
  .card {
    background-color: #ffffff;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
  }
  
  .card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(66, 48, 214, 0.12);
    border-color: var(--color-primary);
  }
  
  .card__title {
    font-family: 'Kanit', sans-serif;
    font-weight: 600;
    font-size: 1.5rem;
    color: var(--color-dark);
    margin-bottom: var(--spacing-md);
  }
  
  .card__text {
    font-size: 1rem;
    color: var(--color-dark);
    margin-bottom: var(--spacing-lg);
    opacity: 0.85;
  }
  
  /* ===================
     LISTES STYLISÉES
     =================== */
  .list {
    list-style: none;
    padding: 0;
    margin: 0;
  }
  
  .list__item {
    font-size: 1rem;
    color: var(--color-dark);
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    position: relative;
    line-height: 1.6;
  }
  
  .list__item::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 1.125rem;
  }
  
  .list__item--accent::before {
    color: var(--color-accent);
  }
  
  .list__item--secondary::before {
    color: var(--color-secondary);
  }
  
  /* ===================
     SECTIONS
     =================== */
  .section {
    padding: var(--spacing-xxxl) 0;
  }
  
  .section--sm {
    padding: var(--spacing-xxl) 0;
  }
  
  .section--lg {
    padding: calc(var(--spacing-xxxl) * 1.5) 0;
  }
  
  .section__title {
    font-family: 'Baloo 2', cursive;
    font-weight: 600;
    font-size: 2.5rem;
    color: var(--color-dark);
    text-align: center;
    margin-bottom: var(--spacing-xl);
  }
  
  .section__subtitle {
    font-size: 1.25rem;
    color: var(--color-dark);
    text-align: center;
    margin-bottom: var(--spacing-xxl);
    opacity: 0.8;
  }
  
  /* ===================
     GRIDS RÉUTILISABLES
     =================== */
  .grid {
    display: grid;
    gap: var(--spacing-xl);
  }
  
  .grid--2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
  
  .grid--3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
  
  .grid--4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
  
  /* ===================
     UTILITAIRES
     =================== */
  .text-center {
    text-align: center;
  }
  
  .text-primary {
    color: var(--color-primary);
  }
  
  .text-accent {
    color: var(--color-accent);
  }
  
  .text-light {
    color: var(--color-light);
  }
  
  .bg-primary {
    background-color: var(--color-primary);
  }
  
  .bg-light {
    background-color: var(--color-light);
  }
  
  .bg-white {
    background-color: #ffffff;
  }
  
  .mb-sm { margin-bottom: var(--spacing-sm); }
  .mb-md { margin-bottom: var(--spacing-md); }
  .mb-lg { margin-bottom: var(--spacing-lg); }
  .mb-xl { margin-bottom: var(--spacing-xl); }
  
  .mt-sm { margin-top: var(--spacing-sm); }
  .mt-md { margin-top: var(--spacing-md); }
  .mt-lg { margin-top: var(--spacing-lg); }
  .mt-xl { margin-top: var(--spacing-xl); }
  
  /* ===================
     RESPONSIVE UTILITIES
     =================== */
  @media (max-width: 1024px) {
    :root {
      --spacing-xxxl: 4rem;
      --spacing-xxl: 3rem;
    }
    
    .section__title {
      font-size: 2rem;
    }
  }
  
  @media (max-width: 768px) {
    :root {
      --spacing-xxxl: 3rem;
      --spacing-xxl: 2rem;
    }
    
    .container {
      padding-left: var(--spacing-sm);
      padding-right: var(--spacing-sm);
    }
    
    .section__title {
      font-size: 1.75rem;
    }
    
    .btn {
      padding: var(--spacing-sm) var(--spacing-md);
      font-size: 0.9375rem;
    }
    
    .grid--2,
    .grid--3,
    .grid--4 {
      grid-template-columns: 1fr;
      gap: var(--spacing-lg);
    }
    
    .card {
      padding: var(--spacing-lg);
    }
  }
  
  @media (max-width: 480px) {
    .section__title {
      font-size: 1.5rem;
    }
    
    .section__subtitle {
      font-size: 1.125rem;
    }
  }
  
  /* ===================
     ACCESSIBILITÉ
     =================== */
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
  }
  
  /* Focus visible pour navigation clavier */
  *:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
  }
  
  /* ===================
     ANIMATIONS
     =================== */
  @keyframes fadeIn {
    from {
      opacity: 0;
      transform: translateY(20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .fade-in {
    animation: fadeIn 0.6s ease-out;
  }
  
  /* ===================
     PRINT STYLES
     =================== */
  @media print {
    .btn,
    .header,
    .footer {
      display: none;
    }
    
    body {
      background-color: #ffffff;
      color: #000000;
    }
  }