/* ═══════════════════════════════════════════════════════════════════════════
   LAYOUT — Grille, Container, Spacing, Sections
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─── Container ──────────────────────────────────────────────────────────── */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--margin-mobile);
}

@media (min-width: 768px) {
    .container {
        padding-inline: var(--margin-desktop);
    }
}

/* ─── Section ────────────────────────────────────────────────────────────── */
.section {
    padding-block: var(--space-16);
}

@media (min-width: 768px) {
    .section {
        padding-block: var(--space-24);
    }
}

/* ─── Grille 12 colonnes ──────────────────────────────────────────────────── */
.grid {
    display: grid;
    gap: var(--gutter-mobile);
}

@media (min-width: 768px) {
    .grid {
        gap: var(--gutter-desktop);
    }
}

.grid-cols-1  { grid-template-columns: repeat(1, 1fr); }
.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); }
.grid-cols-12 { grid-template-columns: repeat(12, 1fr); }

@media (min-width: 640px) {
    .sm\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
    .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
    .md\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 1024px) {
    .lg\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

.col-span-2 { grid-column: span 2; }

/* ─── Flexbox utilitaires ─────────────────────────────────────────────────── */
.flex          { display: flex; }
.flex-col      { flex-direction: column; }
.flex-wrap     { flex-wrap: wrap; }
.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-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); }
.gap-12 { gap: var(--space-12); }
.gap-16 { gap: var(--space-16); }

/* ─── Section Header (titre + subtitle centrés) ───────────────────────────── */
.section-header {
    text-align: center;
    max-width: 720px;
    margin-inline: auto;
    margin-bottom: var(--space-12);
}

.section-header h2 {
    color: var(--color-text-heading);
    margin-bottom: var(--space-4);
}

.section-header p {
    color: var(--color-on-surface-variant);
}

/* ─── Badge ───────────────────────────────────────────────────────────────── */
.badge {
    display: inline-block;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: var(--text-label-sm);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--ls-wide);
}

.badge-secondary-container {
    background-color: var(--color-secondary-container);
    color: var(--color-on-secondary-container);
}

.badge-primary {
    background-color: var(--color-primary);
    color: var(--color-on-primary);
}

/* ─── Utilitaires divers ──────────────────────────────────────────────────── */
.text-center   { text-align: center; }
.text-left     { text-align: left; }
.text-right    { text-align: right; }

.hidden        { display: none !important; }
.block         { display: block; }

.overflow-hidden   { overflow: hidden; }
.relative          { position: relative; }
.absolute          { position: absolute; }
.sticky            { position: sticky; }

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

.inset-0         { inset: 0; }
.object-cover    { object-fit: cover; }
.object-center   { object-position: center; }

.rounded-card { border-radius: var(--radius-card); }
.rounded-btn  { border-radius: var(--radius-btn); }
.rounded-full { border-radius: var(--radius-full); }
.rounded-2xl  { border-radius: var(--radius-2xl); }
.rounded-3xl  { border-radius: var(--radius-3xl); }

/* ─── Animations d'entrée ─────────────────────────────────────────────────── */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Éléments animés par IntersectionObserver */
.reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ─── Responsive: display utilities ──────────────────────────────────────── */
@media (min-width: 768px) {
    .md\:hidden  { display: none !important; }
    .md\:flex    { display: flex !important; }
    .md\:block   { display: block !important; }
    .md\:grid    { display: grid !important; }
    .md\:order-1 { order: 1; }
    .md\:order-2 { order: 2; }
}

@media (max-width: 767px) {
    .mobile-hidden { display: none !important; }
}

/* ─── Skip to content (accessibilité) ───────────────────────────────────── */
.skip-to-content {
    position: absolute;
    left: -9999px;
    top: var(--space-4);
    z-index: var(--z-toast);
    padding: var(--space-2) var(--space-4);
    background: var(--color-primary);
    color: var(--color-on-primary);
    border-radius: var(--radius-btn);
    font-weight: var(--fw-semibold);
}

.skip-to-content:focus {
    left: var(--space-4);
}