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

/* Général */
body {
    font-family: var(--font-family-body);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-background);
    transition: background-color var(--transition-default), color var(--transition-default);
}

/* Typographie */
h1, h2, h3, h4 {
    font-family: var(--font-family-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--color-eefrei-blue);
    transition: color var(--transition-default);
}
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; margin-top: var(--spacing-lg); }
h3 { font-size: 1.5rem; margin-top: var(--spacing-md); }
p { margin-bottom: var(--spacing-md); }

a {
    color: var(--color-link);
    text-decoration: none;
    transition: color var(--transition-fast), outline var(--transition-fast);
}
a:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}
a:focus-visible {
    outline: 2px solid var(--color-accent-turquoise);
    outline-offset: 4px;
    border-radius: var(--border-radius-sm);
}

/* Formulaires et Boutons */
button, .button {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    font-family: var(--font-family-heading);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: none;
    border-radius: var(--border-radius-md);
    transition: background-color var(--transition-fast), opacity var(--transition-fast);
}
.button--primary {
    background-color: var(--color-button-primary);
    color: var(--color-button-text);
}
.button--primary:hover, .button--primary:focus-visible {
    background-color: var(--color-eefrei-blue-dark);
}
/* Focus général pour les boutons */
button:focus-visible, .button:focus-visible {
    outline: 3px solid var(--color-accent-turquoise);
    outline-offset: 2px;
}

/* Accessibilité: Cacher visuellement mais garder pour les lecteurs d'écran */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}
/* ===== Galerie Campus ===== */

#galerie-photo {
    padding: 4rem 0;
}

.galerie-intro {
    max-width: 700px;
    margin: 0 auto 2.5rem;
    text-align: center;
    color: var(--text-muted);
}

.galerie-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.galerie-item {
    position: relative;
    overflow: hidden;
    border-radius: 16px;
    aspect-ratio: 4 / 3; /* 🔥 toutes les images même taille */
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.galerie-item img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* 🔥 recadrage propre */
    display: block;
    transition: transform 0.4s ease;
}

.galerie-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.18);
}

.galerie-item:hover img {
    transform: scale(1.08);
}

.galerie-hint {
    text-align: center;
    margin-top: 2rem;
    font-style: italic;
    color: var(--text-muted);
}