/* ════════════════════════════════════════
   PHOTOLE — Galería Fotográfica
   styles.css
   ════════════════════════════════════════ */

:root {
    --bg: #eef3f9;
    --text: #1e3a5f;
    --text-light: #7a9bbf;
    --glass: rgba(255, 255, 255, 0.52);
    --glass-border: rgba(255, 255, 255, 0.78);
    --shadow: rgba(30, 58, 95, 0.09);
    --blue-1: rgba(147, 197, 253, 0.28);
    --blue-2: rgba(165, 180, 252, 0.25);
    --blue-3: rgba(186, 230, 253, 0.22);
    --blue-4: rgba(196, 221, 255, 0.20);
    --blue-5: rgba(129, 168, 235, 0.15);
}

/* ── Reset ── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ── Base ── */
body {
    background-color: var(--bg);
    background-image:
        radial-gradient(ellipse at 10% 10%,  var(--blue-1) 0%, transparent 55%),
        radial-gradient(ellipse at 88% 75%,  var(--blue-2) 0%, transparent 55%),
        radial-gradient(ellipse at 60% 5%,   var(--blue-3) 0%, transparent 45%),
        radial-gradient(ellipse at 25% 90%,  var(--blue-4) 0%, transparent 45%),
        radial-gradient(ellipse at 80% 15%,  var(--blue-5) 0%, transparent 40%);
    min-height: 100vh;
    font-family: 'Georgia', 'Times New Roman', serif;
    color: var(--text);
}

/* ════════════════════════════════════════
   HEADER
   ════════════════════════════════════════ */
header {
    text-align: center;
    padding: 1rem 1rem 1rem;
}

.logo-wrap {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 0.9rem;
}

/* Logo imagen */
.logo-img {
    width: 380px;
    height: auto;
    opacity: 0.92;
    transition: opacity 0.35s ease,
                transform 0.5s cubic-bezier(.25, .8, .25, 1);
}

.logo-img:hover {
    opacity: 1;
    transform: scale(1.04);
}

/* Subtítulo bajo el logo */
.header-sub {
    font-size: 1.2rem;
    letter-spacing: 0.3em;
    color: #000000;
    text-transform: uppercase;
    margin-top: 0.2rem;
}

/* Redes sociales en el header */
.header-social {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 0.4rem;
}

.header-social-link {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    color: #000000;
    text-decoration: none;
    text-transform: lowercase;
    transition: color 0.2s ease, transform 0.2s ease;
}

.header-social-link:hover {
    color: var(--text);
    transform: translateY(-1px);
}

.header-social-sep {
    color: var(--text-light);
    opacity: 0.4;
    font-size: 0.8rem;
}

/* ════════════════════════════════════════
   GALLERY — Masonry
   ════════════════════════════════════════ */
.gallery {
    padding: 1rem 5rem 5rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 4px;
    column-gap: 1.4rem;
    align-items: start;
}

.photo-item {
    cursor: pointer;
    position: relative;
    border-radius: 14px;
    overflow: hidden;
    background: var(--glass);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 4px 24px var(--shadow);
    /* Fade-in al cargar */
    opacity: 0;
    transform: translateY(16px);
    transition:
        transform  0.35s cubic-bezier(.25, .8, .25, 1),
        box-shadow 0.35s cubic-bezier(.25, .8, .25, 1),
        opacity    0.5s ease;
}

/* Clase añadida por JS cuando la imagen carga */
.photo-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.photo-item:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 18px 48px rgba(30, 58, 95, 0.16);
}

.photo-item img {
    width: 100%;
    display: block;
    border-radius: 14px;
    /* Zoom suave en hover */
    transition: transform 0.4s cubic-bezier(.25, .8, .25, 1), opacity 0.3s ease;
}

.photo-item:hover img {
    transform: scale(1.05);
    opacity: 0.92;
}

/* ── Metadatos bajo la foto ── */
.photo-meta {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding: 0.55rem 0.85rem 0.65rem;
}

.photo-meta-date {
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    color: var(--text);
    opacity: 0.75;
}

.photo-meta-tech {
    font-size: 0.62rem;
    letter-spacing: 0.08em;
    color: var(--text-light);
    opacity: 0.8;
}

/* Brillo sutil en hover */
.photo-item::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(186, 218, 255, 0.14) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.photo-item:hover::after {
    opacity: 1;
}

/* Skeleton loading */
.photo-item.loading {
    min-height: 200px;
    background: linear-gradient(
        110deg,
        rgba(186, 218, 255, 0.25) 25%,
        rgba(220, 235, 255, 0.55) 50%,
        rgba(186, 218, 255, 0.25) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.6s infinite;
}

@keyframes shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ════════════════════════════════════════
   LIGHTBOX
   ════════════════════════════════════════ */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(10, 22, 40, 0.90);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    align-items: center;
    justify-content: center;
}

.lightbox.active {
    display: flex;
}

.lb-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.lb-img-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    -webkit-user-select: none;
}

.lb-img-wrap img {
    max-width: 86vw;
    max-height: 84vh;
    border-radius: 10px;
    box-shadow: 0 30px 90px rgba(0, 10, 30, 0.5);
    display: block;
    pointer-events: none;
}

/* ── Botones del lightbox ── */
.lb-btn {
    position: absolute;
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    color: var(--text);
    cursor: pointer;
    border-radius: 50%;
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease, box-shadow 0.2s ease;
    z-index: 1010;
    line-height: 1;
}

.lb-btn:hover {
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 4px 16px rgba(30, 58, 95, 0.18);
}

.lb-close {
    top: 1.4rem;
    right: 1.4rem;
    font-size: 0.88rem;
}

.lb-prev {
    left: 1.4rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
}
.lb-prev:hover { transform: translateY(-50%) scale(1.1); }

.lb-next {
    right: 1.4rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
}
.lb-next:hover { transform: translateY(-50%) scale(1.1); }

/* Contador */
.lb-counter {
    position: absolute;
    top: 1.4rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 100px;
    padding: 0.3rem 1.1rem;
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    color: var(--text-light);
    white-space: nowrap;
    z-index: 1010;
}


/* ── Panel EXIF ── */
.exif-panel {
    position: absolute;
    bottom: 5.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
    justify-content: center;
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 100px;
    padding: 0.4rem 1.2rem;
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    color: var(--text-light);
    white-space: nowrap;
    z-index: 1010;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.exif-panel.visible {
    opacity: 1;
}

.exif-camera {
    color: var(--text);
    font-weight: 500;
}

.exif-tech {
    color: var(--text-light);
}

.exif-date {
    color: var(--text-light);
    opacity: 0.7;
}

.exif-sep {
    opacity: 0.3;
    margin: 0 0.1rem;
}

/* ════════════════════════════════════════
   FOOTER
   ════════════════════════════════════════ */
footer {
    text-align: center;
    padding: 2.5rem 2rem 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.footer-social {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.footer-link {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    color: var(--text-light);
    text-decoration: none;
    text-transform: lowercase;
    transition: color 0.2s ease, transform 0.2s ease;
}

.footer-link:hover {
    color: var(--text);
    transform: translateY(-1px);
}

.social-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.footer-sep {
    color: var(--text-light);
    opacity: 0.4;
    font-size: 0.8rem;
}

.footer-copy {
    font-size: 1.2rem;
    letter-spacing: 0.22em;
    color: #000000;
    opacity: 0.6;
    text-transform: uppercase;
}

/* ════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════ */
@media (max-width: 960px) {
    .gallery {
        grid-template-columns: repeat(2, 1fr);
        padding: 2rem;
    }
}

@media (max-width: 540px) {
    .gallery {
        grid-template-columns: 1fr;
        grid-auto-rows: 4px;
        padding: 1.25rem;
    }

    .logo-img {
        width: 180px;
        height: auto;
    }
}