/* ================================================================
   AYIRA — virtual-tours/index.css
   Design : Galerie muséale africaine — luxe, sobre, bichromie or/noir
   Thème adaptatif light / dark — Font Awesome uniquement
   ================================================================ */

/* ── Variables dark (défaut) ──────────────────────────────────── */
:root {
    --vti-bg:           #080604;
    --vti-bg2:          #0f0c08;
    --vti-surface:      rgba(20, 16, 10, 0.96);
    --vti-surface2:     rgba(28, 22, 14, 0.98);
    --vti-border:       rgba(212, 175, 55, 0.14);
    --vti-border-hover: rgba(212, 175, 55, 0.55);
    --vti-text:         rgba(255, 252, 242, 0.92);
    --vti-muted:        rgba(255, 252, 242, 0.48);
    --vti-faint:        rgba(255, 252, 242, 0.22);
    --vti-gold:         #D4AF37;
    --vti-gold2:        #F0CC5A;
    --vti-orange:       #E8841A;
    --vti-shadow:       0 12px 48px rgba(0, 0, 0, 0.7);
    --vti-shadow-hover: 0 24px 64px rgba(212, 175, 55, 0.18);
    --vti-badge-bg:     rgba(212, 175, 55, 0.12);
    --vti-badge-color:  #D4AF37;
    --vti-featured-bg:  rgba(212, 175, 55, 0.08);
    --vti-card-img-bg:  #120e08;
    --vti-overlay:      linear-gradient(to top, rgba(0,0,0,0.88) 0%, rgba(0,0,0,0.2) 60%, transparent 100%);
    --vti-grid-line:    rgba(212, 175, 55, 0.04);
    --vti-header-sep:   rgba(212, 175, 55, 0.2);
}

/* ── Variables light ──────────────────────────────────────────── */
body.light-theme {
    --vti-bg:           #faf8f4;
    --vti-bg2:          #f2ede4;
    --vti-surface:      rgba(255, 253, 247, 0.98);
    --vti-surface2:     rgba(248, 244, 235, 0.98);
    --vti-border:       rgba(180, 140, 30, 0.18);
    --vti-border-hover: rgba(180, 140, 30, 0.6);
    --vti-text:         #1a1408;
    --vti-muted:        #6b5c30;
    --vti-faint:        #b0a07a;
    --vti-gold:         #9a7a10;
    --vti-gold2:        #b89020;
    --vti-orange:       #c06010;
    --vti-shadow:       0 8px 32px rgba(0, 0, 0, 0.10);
    --vti-shadow-hover: 0 16px 48px rgba(160, 120, 20, 0.16);
    --vti-badge-bg:     rgba(180, 140, 30, 0.10);
    --vti-badge-color:  #8a6808;
    --vti-featured-bg:  rgba(180, 140, 30, 0.06);
    --vti-card-img-bg:  #e8e0cc;
    --vti-overlay:      linear-gradient(to top, rgba(0,0,0,0.72) 0%, rgba(0,0,0,0.12) 60%, transparent 100%);
    --vti-grid-line:    rgba(180, 140, 30, 0.06);
    --vti-header-sep:   rgba(180, 140, 30, 0.25);
}

/* ── Page wrapper ─────────────────────────────────────────────── */
.vti-page {
    min-height: 100vh;
    background: var(--vti-bg);
    transition: background 0.3s ease;
}

/* ── Conteneur principal ──────────────────────────────────────── */
.vti-container {
    max-width: 1380px;
    margin: 0 auto;
    padding: 0 2rem 6rem;
}

/* ── En-tête hero ─────────────────────────────────────────────── */
.vti-hero {
    position: relative;
    padding: 5rem 2rem 4rem;
    text-align: center;
    overflow: hidden;
}

/* Ligne décorative dorée sous le titre */
.vti-hero::after {
    content: '';
    display: block;
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--vti-gold), transparent);
    margin: 2rem auto 0;
}

.vti-hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: var(--vti-gold);
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: vti-fade-up 0.7s ease 0.1s forwards;
}

.vti-hero-eyebrow i { font-size: 0.65rem; }

.vti-hero-title {
    font-family: 'Cinzel', serif;
    font-size: clamp(2.4rem, 5vw, 4.2rem);
    font-weight: 700;
    color: var(--vti-text);
    line-height: 1.1;
    margin-bottom: 1.25rem;
    letter-spacing: -0.01em;
    opacity: 0;
    animation: vti-fade-up 0.7s ease 0.2s forwards;
    transition: color 0.3s ease;
}

/* Mot mis en valeur en or */
.vti-hero-title em {
    font-style: normal;
    background: linear-gradient(135deg, var(--vti-gold), var(--vti-gold2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.vti-hero-sub {
    max-width: 580px;
    margin: 0 auto;
    font-size: 1rem;
    color: var(--vti-muted);
    line-height: 1.75;
    font-weight: 400;
    opacity: 0;
    animation: vti-fade-up 0.7s ease 0.3s forwards;
    transition: color 0.3s ease;
}

/* ── Alerte erreur ────────────────────────────────────────────── */
.vti-error {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(220, 53, 69, 0.08);
    border: 1px solid rgba(220, 53, 69, 0.3);
    border-radius: 10px;
    padding: 1rem 1.4rem;
    margin-bottom: 2.5rem;
    color: #e05565;
    font-size: 0.88rem;
}

.vti-error i { font-size: 0.9rem; flex-shrink: 0; }

/* ── Séparateur de section ────────────────────────────────────── */
.vti-section-header {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 2.5rem;
}

.vti-section-line {
    flex: 1;
    height: 1px;
    background: var(--vti-header-sep);
    transition: background 0.3s ease;
}

.vti-section-title {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: 'Cinzel', serif;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--vti-gold);
    white-space: nowrap;
    transition: color 0.3s ease;
}

.vti-section-title i { font-size: 0.72rem; }

/* ── Grille vedette (2 colonnes max) ─────────────────────────── */
.vti-featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
    gap: 1.5rem;
    margin-bottom: 5rem;
}

/* ── Grille principale ────────────────────────────────────────── */
.vti-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

/* ── Carte visite ─────────────────────────────────────────────── */
.vti-card {
    position: relative;
    background: var(--vti-surface);
    border: 1px solid var(--vti-border);
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    text-decoration: none;
    display: block;
    box-shadow: var(--vti-shadow);
    transition:
        border-color 0.3s ease,
        transform 0.35s cubic-bezier(0.22, 0.61, 0.36, 1),
        box-shadow 0.35s ease,
        background 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.vti-card.vti-visible {
    opacity: 1;
    transform: translateY(0);
}

.vti-card:hover {
    border-color: var(--vti-border-hover);
    transform: translateY(-6px);
    box-shadow: var(--vti-shadow-hover);
    text-decoration: none;
}

/* Carte vedette — bordure or plus prononcée */
.vti-card--featured {
    border-color: rgba(212, 175, 55, 0.28);
    background: var(--vti-featured-bg);
}

body.light-theme .vti-card--featured {
    border-color: rgba(180, 140, 30, 0.3);
}

/* ── Image de la carte ────────────────────────────────────────── */
.vti-card-img {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: var(--vti-card-img-bg);
    overflow: hidden;
    transition: background 0.3s ease;
}

.vti-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.55s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.vti-card:hover .vti-card-img img {
    transform: scale(1.06);
}

/* Overlay gradient sur l'image */
.vti-card-img-overlay {
    position: absolute;
    inset: 0;
    background: var(--vti-overlay);
    transition: opacity 0.3s ease;
    opacity: 0.5;
}

.vti-card:hover .vti-card-img-overlay {
    opacity: 1;
}

/* Placeholder quand pas d'image */
.vti-card-img-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 0.5rem;
    color: var(--vti-faint);
}

.vti-card-img-placeholder i {
    font-size: 2.5rem;
}

/* ── Badge type (en haut à droite de l'image) ─────────────────── */
.vti-type-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: rgba(10, 8, 4, 0.72);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border: 1px solid rgba(212, 175, 55, 0.3);
    color: #D4AF37;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.3rem 0.7rem;
    border-radius: 20px;
}

body.light-theme .vti-type-badge {
    background: rgba(255, 253, 247, 0.85);
    border-color: rgba(180, 140, 30, 0.4);
    color: #8a6808;
}

.vti-type-badge i { font-size: 0.62rem; }

/* Badge vedette */
.vti-featured-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.92), rgba(240, 180, 50, 0.88));
    color: #1a1408;
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.3rem 0.75rem;
    border-radius: 20px;
}

.vti-featured-badge i { font-size: 0.6rem; }

/* ── Corps de la carte ────────────────────────────────────────── */
.vti-card-body {
    padding: 1.5rem;
}

.vti-card-title {
    font-family: 'Cinzel', serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--vti-text);
    margin-bottom: 0.6rem;
    line-height: 1.3;
    transition: color 0.3s ease;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.vti-card:hover .vti-card-title {
    color: var(--vti-gold);
}

.vti-card-desc {
    font-size: 0.83rem;
    color: var(--vti-muted);
    line-height: 1.65;
    margin-bottom: 1.2rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.3s ease;
}

/* ── Méta (vues, durée) ───────────────────────────────────────── */
.vti-card-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.25rem;
}

.vti-card-meta-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    color: var(--vti-faint);
    transition: color 0.3s ease;
}

.vti-card-meta-item i {
    font-size: 0.68rem;
    color: var(--vti-gold);
}

/* ── Pied de carte ────────────────────────────────────────────── */
.vti-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1rem;
    border-top: 1px solid var(--vti-border);
    margin-top: auto;
    transition: border-color 0.3s ease;
}

.vti-card-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--vti-gold);
    transition: gap 0.25s ease, color 0.25s ease;
}

.vti-card:hover .vti-card-cta {
    gap: 0.75rem;
    color: var(--vti-gold2);
}

.vti-card-cta i { font-size: 0.7rem; }

/* ── Compteur d'œuvres ────────────────────────────────────────── */
.vti-artwork-count {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.72rem;
    color: var(--vti-faint);
    background: var(--vti-badge-bg);
    padding: 0.2rem 0.6rem;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.vti-artwork-count i { font-size: 0.65rem; color: var(--vti-gold); }

/* ── État vide ────────────────────────────────────────────────── */
.vti-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem;
    text-align: center;
    border: 1px dashed var(--vti-border);
    border-radius: 16px;
    background: var(--vti-surface);
    transition: all 0.3s ease;
}

.vti-empty-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--vti-badge-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.vti-empty-icon i {
    font-size: 1.8rem;
    color: var(--vti-gold);
}

.vti-empty-title {
    font-family: 'Cinzel', serif;
    font-size: 1.1rem;
    color: var(--vti-text);
    margin-bottom: 0.5rem;
    font-weight: 600;
    transition: color 0.3s ease;
}

.vti-empty-sub {
    font-size: 0.85rem;
    color: var(--vti-muted);
    max-width: 360px;
    line-height: 1.7;
    transition: color 0.3s ease;
}

/* ── Animations ───────────────────────────────────────────────── */
@keyframes vti-fade-up {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 900px) {
    .vti-featured-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .vti-container    { padding: 0 1rem 4rem; }
    .vti-hero         { padding: 3rem 1rem 2.5rem; }
    .vti-grid         { grid-template-columns: 1fr; }
    .vti-hero-title   { font-size: 2rem; }
}