/* ============================================================
   ELPLAAANB — FOTOS STYLES
   Específico de fotos.html — requiere inicio.css
   ============================================================ */

/* --- INTRO --- */
.page-intro {
    text-align: center;
    padding: 80px 32px 56px;
    max-width: 700px;
    margin: 0 auto;
}

.page-title {
    font-family: var(--fuente-titulo);
    font-size: clamp(2.4rem, 5vw, 4rem);
    font-weight: 700;
    text-transform: uppercase;
    line-height: 1.0;
    letter-spacing: 2px;
    margin-bottom: 22px;
    color: var(--blanco);
}

.page-intro p {
    font-size: 0.95rem;
    color: var(--blanco-dim);
    line-height: 1.85;
    max-width: 50ch;
    margin: 0 auto 32px;
}

/* Botón subir fotos */
.btn-upload {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--fuente-titulo);
    font-size: 0.78rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    padding: 14px 36px;
    border: 1px solid var(--crema);
    color: var(--crema);
    background: transparent;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-upload:hover {
    background: var(--crema);
    color: var(--bg-negro);
}

.btn-upload svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* Aviso tras subida */
.upload-notice {
    display: none;
    margin-top: 16px;
    font-family: var(--fuente-titulo);
    font-size: 0.7rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--crema-dim);
}

.upload-notice.visible { display: block; }

/* --- TABS: GENERAL / ÁLBUMES --- */
.gallery-tabs {
    display: flex;
    justify-content: center;
    gap: 0;
    border-top: 1px solid var(--linea);
    border-bottom: 1px solid var(--linea);
    margin-bottom: 56px;
}

.tab-btn {
    font-family: var(--fuente-titulo);
    font-size: 0.78rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    padding: 18px 40px;
    background: transparent;
    border: none;
    color: var(--crema-dim);
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--crema);
    transition: width var(--transition);
}

.tab-btn:hover { color: var(--blanco); }

.tab-btn.active {
    color: var(--blanco);
}

.tab-btn.active::after { width: 100%; }

/* --- SECCIONES DE CONTENIDO --- */
.gallery-section {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px 100px;
    display: none;
}

.gallery-section.active { display: block; }

/* --- ESTADO VACÍO --- */
.empty-state {
    text-align: center;
    padding: 80px 32px;
    border: 1px dashed var(--linea);
}

.empty-state p {
    font-family: var(--fuente-titulo);
    font-size: 0.78rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--crema-dim);
    margin-bottom: 8px;
}

.empty-state small {
    font-size: 0.72rem;
    color: rgba(255,255,255,0.2);
    letter-spacing: 1px;
}

/* --- LOADING --- */
.loading-state {
    text-align: center;
    padding: 60px;
}

.loading-dots {
    display: inline-flex;
    gap: 6px;
}

.loading-dots span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--crema-dim);
    animation: dotPulse 1.2s ease-in-out infinite;
}

.loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.loading-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes dotPulse {
    0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
    40% { opacity: 1; transform: scale(1); }
}

/* --- GRID MASONRY GENERAL --- */
.masonry-grid {
    columns: 4;
    column-gap: 3px;
}

.masonry-item {
    break-inside: avoid;
    margin-bottom: 3px;
    overflow: hidden;
    position: relative;
    cursor: pointer;
}

.masonry-item img {
    width: 100%;
    display: block;
    filter: brightness(0.85);
    transition: transform 0.6s cubic-bezier(0.4,0,0.2,1),
                filter 0.6s ease;
}

.masonry-item:hover img {
    transform: scale(1.04);
    filter: brightness(1);
}

/* Overlay info en hover */
.masonry-item .item-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 60%);
    opacity: 0;
    transition: opacity var(--transition);
    display: flex;
    align-items: flex-end;
    padding: 14px;
}

.masonry-item:hover .item-overlay { opacity: 1; }

.item-overlay span {
    font-family: var(--fuente-titulo);
    font-size: 0.65rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--crema-dim);
}

/* --- ÁLBUMES POR EVENTO --- */
.albums-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3px;
}

.album-card {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    background: var(--bg-card);
}

.album-preview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    height: 280px;
    gap: 2px;
}

.album-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.7);
    transition: filter 0.5s ease;
}

/* Primera foto ocupa 2 filas */
.album-preview img:first-child {
    grid-row: span 2;
}

.album-card:hover .album-preview img { filter: brightness(0.45); }

/* Cuando hay menos de 3 fotos */
.album-preview.solo {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
}

.album-preview.solo img:first-child { grid-row: span 1; }

.album-preview.duo {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr;
}

.album-preview.duo img:first-child { grid-row: span 1; }

/* Info del álbum */
.album-info {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 24px 20px;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.2) 60%, transparent 100%);
}

.album-name {
    font-family: var(--fuente-titulo);
    font-size: 1.2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 4px;
}

.album-count {
    font-family: var(--fuente-titulo);
    font-size: 0.65rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--crema-dim);
}

/* Álbum abierto (lightbox de álbum) */
.album-open {
    display: none;
    padding: 0 0 80px;
}

.album-open.visible { display: block; }

.album-open-header {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 32px 24px;
    border-bottom: 1px solid var(--linea);
    margin-bottom: 32px;
}

.btn-back {
    font-family: var(--fuente-titulo);
    font-size: 0.72rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--crema-dim);
    background: none;
    border: none;
    cursor: pointer;
    transition: color var(--transition);
    padding: 0;
}

.btn-back:hover { color: var(--blanco); }

.album-open-title {
    font-family: var(--fuente-titulo);
    font-size: 1.4rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
}

/* --- LIGHTBOX VISOR --- */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.96);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.lightbox.open { display: flex; }

.lightbox img {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    filter: none;
}

.lightbox-close {
    position: absolute;
    top: 24px;
    right: 32px;
    font-family: var(--fuente-titulo);
    font-size: 0.72rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--crema-dim);
    background: none;
    border: none;
    cursor: pointer;
    transition: color var(--transition);
}

.lightbox-close:hover { color: var(--blanco); }

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    width: 100%;
    padding: 0 24px;
    pointer-events: none;
}

.lightbox-prev,
.lightbox-next {
    font-family: var(--fuente-titulo);
    font-size: 0.72rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--crema-dim);
    background: none;
    border: none;
    cursor: pointer;
    pointer-events: all;
    transition: color var(--transition);
    padding: 16px;
}

.lightbox-prev:hover,
.lightbox-next:hover { color: var(--blanco); }

.lightbox-counter {
    position: absolute;
    bottom: 24px;
    font-family: var(--fuente-titulo);
    font-size: 0.65rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--crema-dim);
}

/* --- RESPONSIVE --- */
@media (max-width: 1100px) {
    .masonry-grid { columns: 3; }
    .albums-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 700px) {
    .masonry-grid { columns: 2; }
    .albums-grid { grid-template-columns: 1fr; }
    .gallery-section { padding: 0 12px 80px; }
    .tab-btn { padding: 16px 24px; font-size: 0.7rem; letter-spacing: 2px; }
}

@media (max-width: 480px) {
    .masonry-grid { columns: 2; column-gap: 2px; }
    .masonry-item { margin-bottom: 2px; }
}