/* ==========================================================================
   LES MAÇONS DU CŒUR — layout.css
   Conteneurs, navigation, footer, sections, grilles
   MOBILE-FIRST : base = mobile, 576px = tablette, 992px = desktop
   ========================================================================== */

/* ---------- Conteneur ---------- */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------- Navigation ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 12px 0;
    transition: var(--transition);
}

.navbar:not(.scrolled) {
    background: linear-gradient(180deg, rgba(28, 25, 23, 0.75) 0%, rgba(28, 25, 23, 0.35) 60%, transparent 100%);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 24px rgba(156, 61, 27, 0.12);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    min-height: var(--tap-min);
}

.logo-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    overflow: hidden;
    flex-shrink: 0;
}

.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
}

.logo-text {
    color: var(--blanc);
    font-family: var(--font-titres);
    font-size: 1.1rem;
    font-weight: 700;
    transition: color 0.3s;
}

.logo-text span { color: var(--or-soleil); }

.navbar.scrolled .logo-text { color: var(--terre-cuite); }

/* Menu mobile : panneau déroulant sous la barre */
.nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--blanc);
    box-shadow: 0 18px 34px rgba(51, 38, 27, 0.16);
    display: none;
    flex-direction: column;
    padding: 14px 16px 20px;
    gap: 4px;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
    border-radius: 0 0 16px 16px;
}

.nav-links.active { display: flex; }

.nav-links a {
    color: var(--texte);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 12px 14px;            /* zone de tap confortable */
    min-height: var(--tap-min);
    display: flex;
    align-items: center;
    border-radius: 8px;
    position: relative;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--orange-ivoire);
    background: rgba(232, 108, 36, 0.08);
}

.nav-links a.active {
    color: var(--orange-ivoire);
    background: rgba(232, 108, 36, 0.12);
    font-weight: 700;
    border-left: 4px solid var(--orange-ivoire);
    border-radius: 0 8px 8px 0;
}

.nav-links a:focus {
    outline: none;
}

.nav-links a:focus-visible {
    outline: 2px solid var(--orange-ivoire);
    outline-offset: 2px;
}

.btn-don {
    background: linear-gradient(135deg, var(--orange-ivoire), var(--terre-cuite));
    color: var(--blanc) !important;
    border-radius: var(--radius-pill) !important;
    justify-content: center;
    text-align: center;
    margin-top: 10px;
    box-shadow: var(--ombre-accent);
    border-left: none !important;
    border-bottom: none !important;
}

.btn-don:hover {
    box-shadow: 0 6px 20px rgba(232, 108, 36, 0.4);
    transform: translateY(-1px);
}

.mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: none;
    border: none;
    color: var(--blanc);
    font-size: 1.4rem;
    cursor: pointer;
    border-radius: 10px;
}

.navbar.scrolled .mobile-menu-btn { color: var(--terre-cuite); }

/* ---------- Sections et en-têtes de page ---------- */
.section {
    padding: var(--space-7) 0;
    position: relative;
}

.page-header {
    min-height: 55vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--blanc);
    position: relative;
    padding: 110px 20px 60px;
    background:
        linear-gradient(135deg, rgba(255, 122, 0, 0.88), rgba(110, 46, 20, 0.92)),
        var(--image-header, none) center/cover no-repeat;
}

.page-header h1 { color: var(--blanc); margin-bottom: 12px; }

.page-header p {
    color: rgba(255, 255, 255, 0.92);
    font-size: 1.05rem;
    max-width: 620px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-6);
}

/* ---------- Hero (accueil) ---------- */
.hero {
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--blanc);
    position: relative;
    overflow: hidden;
    padding: 120px 0 230px;
    background:
        linear-gradient(135deg, rgba(255, 122, 0, 0.88), rgba(60, 24, 8, 0.92)),
        var(--image-hero, none) center/cover no-repeat;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    padding: 0 20px;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 8px 20px;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    animation: float 3s ease-in-out infinite;
}

.hero p {
    color: rgba(255, 255, 255, 0.92);
    font-size: 1.05rem;
    line-height: 1.8;
    margin: 0 auto 32px;
    max-width: 680px;
}

.hero h1 span { color: var(--or-soleil); }

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 14px;
    align-items: center;
}

/* Bandeau de statistiques */
.hero-stats {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(36, 24, 17, 0.55);
    backdrop-filter: blur(16px);
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    padding: 22px 12px;
}

/* ---------- Grilles génériques (mobile-first) ---------- */
.grid-2, .grid-3, .grid-4 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 22px;
}

/* Grilles mission / à propos / contact */
.mission-grid,
.about-grid,
.why-join,
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 36px;
    align-items: center;
}

.mission-grid,
.about-grid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.contact-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    align-items: start;
}

.mission-image { position: relative; }

.mission-image img,
.about-image img,
.why-join-image img {
    width: 100%;
    aspect-ratio: 4 / 3;
    border-radius: var(--radius);
    box-shadow: var(--ombre-lg);
}

.mission-content h3,
.about-content h2,
.why-join-content h2 { margin-bottom: 18px; }

.mission-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 26px;
}

/* ---------- Organigramme ---------- */
.org-chart { max-width: 1400px; margin: 0 auto; padding: 0 20px; }

.org-level {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    position: relative;
}

.org-level-2,
.org-level-3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 22px;
    max-width: 1300px;
    margin: 0 auto 30px;
}

/* ---------- Volontaires ---------- */
.volunteers-grid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

/* ---------- Timeline (parcours de la fondatrice) ---------- */
.timeline-section { background: var(--sable); padding: var(--space-7) 0; }

.timeline {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px 0 56px;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 26px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(to bottom, var(--orange-ivoire), var(--terre-cuite));
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

.timeline-dot {
    position: absolute;
    left: -56px;
    width: 52px;
    height: 52px;
    background: var(--blanc);
    border: 4px solid var(--orange-ivoire);
    border-radius: 50%;
    overflow: hidden;
    z-index: 2;
    box-shadow: 0 0 0 8px var(--accent-pale);
}

.timeline-dot img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.timeline-content {
    background: var(--blanc);
    padding: 22px;
    border-radius: var(--radius);
    box-shadow: var(--ombre-sm);
    max-width: 100%;
}

/* ---------- Bandeaux pleins (CTA, citation, fonds propres) ---------- */
.cta-section,
.quote-section,
.fonds-propres {
    background: linear-gradient(135deg, var(--orange-ivoire), var(--terre-brune));
    padding: var(--space-7) 0;
    text-align: center;
    color: var(--blanc);
    position: relative;
    overflow: hidden;
}

.cta-content,
.quote-content,
.fonds-propres-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.cta-content h2,
.fonds-propres h2 { color: var(--blanc); margin-bottom: 16px; }

.cta-content p,
.fonds-propres p {
    color: rgba(255, 255, 255, 0.92);
    font-size: 1.02rem;
    margin-bottom: 28px;
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 14px;
    align-items: center;
}

.quote-text {
    font-size: 1.4rem;
    font-style: italic;
    line-height: 1.6;
    font-family: var(--font-titres);
    margin-bottom: 24px;
    color: var(--blanc);
}

.quote-author { font-size: 1.05rem; font-weight: 600; color: var(--blanc); }
.quote-role { font-size: 0.85rem; opacity: 0.85; color: var(--blanc); }

/* ---------- Lightbox (galerie) ---------- */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(20, 12, 6, 0.95);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.lightbox.active { display: flex; }

.lightbox-content {
    max-width: 94%;
    max-height: 90%;
    position: relative;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 78vh;
    border-radius: var(--radius-sm);
    object-fit: contain;
}

/* ---------- Footer ---------- */
.footer {
    background: linear-gradient(180deg, var(--brun-nuit), #170E08);
    color: var(--blanc);
    padding: 60px 0 24px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: -46px;
    left: 0;
    right: 0;
    height: 92px;
    background: var(--blanc);
    border-radius: 0 0 50% 50%;
}

.footer-grid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 34px;
    position: relative;
    z-index: 1;
}

.footer-col h3 {
    color: var(--or-soleil);
    font-size: 1.15rem;
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--orange-ivoire);
}

.footer-col p,
.footer-col a {
    color: #D9C9BC;
    text-decoration: none;
    line-height: 2.1;
    font-size: 0.88rem;
}

.footer-col a:hover { color: var(--or-soleil); }

.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 18px;
}

.footer-social a {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blanc);
}

.footer-social a:hover {
    background: var(--orange-ivoire);
    transform: translateY(-3px);
}

.footer-bottom {
    max-width: 1400px;
    margin: 36px auto 0;
    padding: 18px 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    text-align: center;
    font-size: 0.82rem;
    color: #B8A795;
    position: relative;
    z-index: 1;
}

/* Bouton retour en haut */
.scroll-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--orange-ivoire), var(--terre-cuite));
    color: var(--blanc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1500;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    box-shadow: var(--ombre-accent);
}

.scroll-top.visible { opacity: 1; pointer-events: auto; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* ======================================================================
   TABLETTE ≥ 576px
   ====================================================================== */
@media (min-width: 576px) {
    .container, .mission-grid, .about-grid, .org-chart,
    .timeline, .cta-content, .quote-content,
    .fonds-propres-content { padding: 0 30px; }

    .nav-container { padding: 0 24px; }

    .grid-2 { grid-template-columns: repeat(2, 1fr); }

    .stats-container { grid-template-columns: repeat(4, 1fr); padding: 32px 20px; }

    .hero-buttons { flex-direction: row; justify-content: center; }
    .cta-buttons { flex-direction: row; justify-content: center; }

    .mission-features { grid-template-columns: repeat(2, 1fr); }

    .timeline-dot { left: -62px; width: 56px; height: 56px; }
    .timeline { padding-left: 62px; }
    .timeline::before { left: 28px; }

    .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }

    .volunteers-grid { grid-template-columns: repeat(3, 1fr); }

    .org-level-2 { grid-template-columns: repeat(2, 1fr); }

    .timeline-content { padding: 26px; }
}

/* ======================================================================
   DESKTOP ≥ 992px
   ====================================================================== */
@media (min-width: 992px) {
    /* Navigation horizontale */
    .nav-container { padding: 0 30px; }

    .nav-links {
        position: static;
        display: flex !important;
        flex-direction: row;
        background: transparent;
        box-shadow: none;
        padding: 0;
        gap: 28px;
        align-items: center;
        overflow: visible;
        max-height: none;
        border-radius: 0;
    }

    .nav-links a {
        color: rgba(255, 255, 255, 0.95);
        padding: 8px 0;
        border-bottom: none;
        border-left: none !important;
        border-radius: 0 !important;
        background: transparent !important;
        min-height: auto;
        font-size: 0.9rem;
        font-weight: 500;
        letter-spacing: 0.8px;
        position: relative;
        transition: color 0.25s ease;
    }

    /* Navbar en haut (non scrollée) : texte blanc éclatant, actif en or-soleil */
    .nav-links a:hover {
        color: var(--or-soleil);
        background: transparent !important;
    }

    .nav-links a.active {
        color: var(--or-soleil);
        font-weight: 700;
        background: transparent !important;
    }

    /* Navbar scrollée (fond blanc) : texte sombre, actif en orange-ivoire */
    .navbar.scrolled .nav-links a {
        color: var(--texte);
    }

    .navbar.scrolled .nav-links a:hover {
        color: var(--orange-ivoire);
        background: transparent !important;
    }

    .navbar.scrolled .nav-links a.active {
        color: var(--orange-ivoire);
        font-weight: 700;
        background: transparent !important;
    }

    /* Ligne de soulignement moderne en dégradé ivoirien */
    .nav-links a::after {
        content: '';
        position: absolute;
        bottom: -4px;
        left: 50%;
        transform: translateX(-50%);
        width: 0;
        height: 2.5px;
        border-radius: 2px;
        background: linear-gradient(90deg, var(--orange-ivoire), var(--or-soleil));
        transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .nav-links a:hover::after {
        width: 60%;
    }

    .nav-links a.active::after {
        width: 100%;
        box-shadow: 0 2px 8px rgba(232, 108, 36, 0.35);
    }

    .nav-links a.btn-don {
        padding: 11px 24px;
        margin-top: 0;
        border-radius: var(--radius-pill) !important;
        background: linear-gradient(135deg, var(--orange-ivoire), var(--terre-cuite)) !important;
        color: var(--blanc) !important;
        font-weight: 600;
        letter-spacing: 0.5px;
        box-shadow: 0 4px 14px rgba(232, 108, 36, 0.35);
        transition: all 0.3s ease;
    }

    .nav-links a.btn-don:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(232, 108, 36, 0.5);
        color: var(--blanc) !important;
    }

    .nav-links a.btn-don::after {
        display: none !important;
    }

    .mobile-menu-btn { display: none; }

    .logo-icon { width: 64px; height: 64px; }
    .logo-text { font-size: 1.3rem; }

    /* Grilles desktop */
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
    .grid-4 { grid-template-columns: repeat(4, 1fr); }

    .mission-grid,
    .about-grid,
    .why-join {
        grid-template-columns: 1fr 1fr;
        gap: 70px;
    }

    .contact-grid { grid-template-columns: 1fr 1.2fr; gap: 50px; }

    .section { padding: var(--space-8) 0; }

    .hero p { font-size: 1.12rem; }

    .page-header { min-height: 50vh; }

    /* Timeline alternée desktop */
    .timeline { padding: 0 30px; }
    .timeline::before { left: 50%; transform: translateX(-50%); }

    .timeline-item {
        display: flex;
        justify-content: flex-end;
        padding-right: 50%;
        margin-bottom: 56px;
    }

    .timeline-item:nth-child(even) {
        justify-content: flex-start;
        padding-right: 0;
        padding-left: 50%;
    }

    .timeline-dot {
        left: 50%;
        transform: translateX(-50%);
        width: 60px;
        height: 60px;
    }

    .timeline-content {
        max-width: 430px;
        margin-right: 40px;
        padding: 30px;
    }

    .timeline-item:nth-child(even) .timeline-content {
        margin-right: 0;
        margin-left: 40px;
    }

    /* Organigramme desktop */
    .org-level { margin-bottom: 50px; }
    .org-level::after {
        content: '';
        position: absolute;
        bottom: -26px;
        left: 50%;
        transform: translateX(-50%);
        width: 2px;
        height: 26px;
        background: var(--orange-ivoire);
    }
    .org-level:last-of-type::after { display: none; }

    .org-level-2 { grid-template-columns: repeat(3, 1fr); gap: 30px; }
    .org-level-3 { grid-template-columns: repeat(4, 1fr); gap: 25px; }

    .volunteers-grid { grid-template-columns: repeat(6, 1fr); }

    .footer-grid { grid-template-columns: repeat(4, 1fr); gap: 50px; }
}