/* VARIABLES GLOBALES ET RÉINITIALISATION */
:root {
    --chu-blue: #0056A6;
    --chu-white: #FFFFFF;
    --chu-light-blue: #E6F0FA;
    --chu-dark: #333333;
    --chu-green: #4CAF50;
    --chu-red: #E53935;
    --chu-orange: #FF9800;
    --chu-gray: #f8f9fa;
    --chu-dark-blue: #003366;
}

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

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--chu-dark);
    overflow-x: hidden;
}

/* TYPOGRAPHIE */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.display-4 {
    font-size: 3.5rem;
    font-weight: 800;
}

.lead {
    font-size: 1.25rem;
    font-weight: 300;
}

.text-primary { color: var(--chu-blue) !important; }
.text-white { color: var(--chu-white) !important; }
.bg-primary { background-color: var(--chu-blue) !important; }
.bg-light { background-color: var(--chu-light-blue) !important; }

/* BOUTONS */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--chu-blue) 0%, var(--chu-dark-blue) 100%);
    color: white;
    padding: 12px 24px;
    box-shadow: 0 4px 15px rgba(0, 86, 166, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 86, 166, 0.4);
    background: linear-gradient(135deg, var(--chu-dark-blue) 0%, var(--chu-blue) 100%);
    color: white;
}

.btn-outline-primary {
    border: 2px solid var(--chu-blue);
    color: var(--chu-blue);
    background: transparent;
    padding: 10px 22px;
}

.btn-outline-primary:hover {
    background: var(--chu-blue);
    color: white;
    transform: translateY(-2px);
}

.btn-light {
    background: rgba(255, 255, 255, 0.9);
    color: var(--chu-blue);
    padding: 12px 24px;
}

.btn-light:hover {
    background: white;
    color: var(--chu-blue);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 15px 30px;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

/* UTILITAIRES */
.section-padding {
    padding: 80px 0;
}

.container-small {
    max-width: 800px;
    margin: 0 auto;
}

.shadow-custom {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.rounded-custom {
    border-radius: 15px;
}

/* ANIMATIONS */
.fade-in {
    animation: fadeIn 0.6s ease-in;
}

.slide-up {
    animation: slideUp 0.8s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { 
        opacity: 0;
        transform: translateY(30px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

/* BADGES */
.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.75rem;
}

.badge-primary {
    background: var(--chu-blue);
    color: white;
}

.badge-success {
    background: var(--chu-green);
    color: white;
}

.badge-warning {
    background: var(--chu-orange);
    color: white;
}

.badge-danger {
    background: var(--chu-red);
    color: white;
}

/* CARDS GÉNÉRIQUES */
.card {
    border: none;
    border-radius: 15px;
    transition: all 0.3s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}