/* ── css/layout.css ── */

/* ── Header ── */
.site-header {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-light);
    padding: 2.5rem 1.25rem 2rem;
    text-align: center;
}

.header-inner {
    max-width: 680px;
    margin: 0 auto;
}

.header-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: .09em;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--accent-light);
    border: 1px solid var(--accent-mid);
    border-radius: var(--radius-full);
    padding: 4px 13px;
    margin-bottom: 1rem;
    opacity: 0;
    animation: fade-up .5s .1s forwards;
}

.site-title {
    font-family: var(--font-display);
    font-size: clamp(30px, 6vw, 48px);
    font-weight: 700;
    font-style: italic;
    color: var(--text-primary);
    line-height: 1.1;
    margin-bottom: .6rem;
    opacity: 0;
    animation: fade-up .5s .2s forwards;
}

.site-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    max-width: 380px;
    margin: 0 auto .8rem;
    opacity: 0;
    animation: fade-up .5s .3s forwards;
}

.date-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    color: var(--text-tertiary);
    background: var(--bg-subtle);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-full);
    padding: 4px 12px;
    opacity: 0;
    animation: fade-up .5s .4s forwards;
}

/* ── Sidebar navigation ── */

/* Bouton hamburger : fixed indépendant, aucun parent */
.hamburger-btn {
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 200;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: var(--bg-surface);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    cursor: pointer;
    transition: background var(--transition), box-shadow var(--transition);
}

.hamburger-btn:hover {
    background: var(--bg-subtle);
    box-shadow: var(--shadow-hover);
}

.hamburger-bar {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}

/* Animation barres → croix quand ouvert */
.hamburger-btn.sidebar--open .hamburger-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger-btn.sidebar--open .hamburger-bar:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger-btn.sidebar--open .hamburger-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Nav sidebar : fixed indépendant, aucun parent */
.sidebar-nav {
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 199;
    width: 220px;
    background: var(--bg-surface);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-hover);
    padding: 52px 0 10px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-6px) scale(0.97);
    transform-origin: top left;
    transition: opacity 0.18s ease, transform 0.18s ease;
}

.sidebar-nav.sidebar--open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0) scale(1);
}

.sidebar-header {
    padding: 4px 16px 10px;
    border-bottom: 1px solid var(--border-light);
    margin-bottom: 6px;
}

.sidebar-title {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--text-tertiary);
}

.sidebar-links {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 0 8px;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 9px 12px;
    border-radius: var(--radius-md);
    font-size: 13.5px;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: background var(--transition), color var(--transition);
}

.sidebar-link svg {
    flex-shrink: 0;
    opacity: 0.7;
    transition: opacity var(--transition);
}

.sidebar-link:hover {
    background: var(--bg-subtle);
    color: var(--text-primary);
}

.sidebar-link:hover svg {
    opacity: 1;
}

.sidebar-link.active {
    background: var(--accent-light);
    color: var(--accent);
}

.sidebar-link.active svg {
    opacity: 1;
}

.sidebar-link--muted {
    color: var(--text-tertiary);
    font-size: 13px;
}

.sidebar-divider {
    height: 1px;
    background: var(--border-light);
    margin: 6px 8px;
}

/* Overlay mobile : fixed indépendant */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .25);
    z-index: 198;
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.sidebar-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

/* ── Main content ── */
.content {
    max-width: 680px;
    margin: 0 auto;
    padding: 2rem 1.25rem 5rem;
}

/* ── Section label ── */
.section-label {
    font-size: 11px;
    font-weight: 500;
    letter-spacing: .09em;
    text-transform: uppercase;
    color: var(--text-tertiary);
    margin-bottom: 1rem;
}

/* ── Cards list ── */
.cards-list {
    display: flex;
    flex-direction: column;
    gap: .85rem;
}

/* ── Stats grid ── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 10px;
    margin-bottom: .5rem;
}

.stat-card {
    background: var(--bg-subtle);
    border-radius: var(--radius-md);
    padding: 1rem 1.1rem;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-label {
    font-size: 12px;
    color: var(--text-tertiary);
}

.stat-value {
    font-size: 24px;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1;
}

/* ── Empty state ── */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-tertiary);
    font-size: 14px;
    line-height: 1.7;
}

.empty-state svg {
    margin: 0 auto 12px;
    opacity: .4;
}

/* ════════════════════════════════════════════════════════
   RESPONSIVE
   Breakpoints : 1024px · 768px · 480px · 360px
   Philosophie : on touche uniquement l'espacement,
   la taille de texte et la mise en page des grilles.
   L'aspect visuel (couleurs, ombres, rayons) ne change pas.
════════════════════════════════════════════════════════ */

/* ── Grands écrans (> 1024px) : centrer avec plus d'air ── */
@media (min-width: 1024px) {
    .content {
        max-width: 720px;
        padding: 2.5rem 2rem 6rem;
    }

    .site-header {
        padding: 3rem 2rem 2.5rem;
    }
}

/* ── Tablettes (≤ 768px) ── */
@media (max-width: 768px) {

    /* Header plus compact */
    .site-header {
        padding: 2rem 1rem 1.5rem;
    }

    .site-title {
        font-size: clamp(24px, 7vw, 36px);
    }

    .site-subtitle {
        font-size: 13px;
    }

    /* Décaler le contenu pour ne pas couvrir le hamburger */
    .content {
        padding: 1.5rem 1rem 4rem;
    }

    /* Stats sur 2 colonnes fixes */
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* ── Mobiles (≤ 480px) ── */
@media (max-width: 480px) {

    /* Header très compact */
    .site-header {
        padding: 1.5rem .875rem 1.25rem;
    }

    .header-badge {
        font-size: 10px;
        padding: 3px 11px;
    }

    .site-subtitle {
        display: none;
        /* libère de la place, le badge suffit */
    }

    .date-pill {
        font-size: 11px;
    }

    /* Contenu plein-écran avec marges réduites */
    .content {
        padding: 1.25rem .875rem 4rem;
    }

    .cards-list {
        gap: .7rem;
    }

    /* Stats en 2 colonnes serrées */
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .stat-value {
        font-size: 20px;
    }

    /* Hamburger légèrement remonté sur très petit écran */
    .hamburger-btn {
        top: 12px;
        left: 12px;
    }
}

/* ── Très petits écrans (≤ 360px) ── */
@media (max-width: 360px) {
    .site-header {
        padding: 1.25rem .75rem 1rem;
    }

    .content {
        padding: 1rem .75rem 3.5rem;
    }

    /* Sidebar légèrement plus étroite */
    .sidebar-nav {
        width: calc(100vw - 24px);
    }
}