:root {
    --primary: #0a0a0a;
    --secondary: #1a1a1a;
    --accent: #ff3e3e;
    --accent-hover: #ff6b6b;
    --text: #ffffff;
    --text-muted: #888888;
    --transition: cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', sans-serif;
    background: var(--primary);
    color: var(--text);
    overflow-x: hidden;
    cursor: none;
}

/* Cursor Personalizado */
.cursor {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.1s var(--transition);
    mix-blend-mode: difference;
}

.cursor-follower {
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9998;
    transition: transform 0.3s var(--transition), width 0.3s, height 0.3s;
}

.cursor.hover {
    transform: scale(2);
    background: var(--accent);
}

.cursor-follower.hover {
    width: 60px;
    height: 60px;
    border-color: var(--accent);
    background: rgba(255, 62, 62, 0.1);
}

/* Header */
.header {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 62, 62, 0.1) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.header-content {
    text-align: center;
    z-index: 2;
    animation: fadeInUp 1s var(--transition);
}

.logo {
    font-size: clamp(3rem, 10vw, 8rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #fff 0%, #888 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.accent {
    color: var(--accent);
    -webkit-text-fill-color: var(--accent);
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    font-weight: 300;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 13px;
    position: relative;
}

.mouse::before {
    content: '';
    width: 4px;
    height: 8px;
    background: var(--accent);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Back button */
.back-btn {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--accent);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.875rem;
    z-index: 101;
    transition: background 0.3s;
}
.back-btn:hover {
    background: var(--accent-hover);
}

/* Filtros */
.filters {
    position: sticky;
    top: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    padding: 2rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    z-index: 100;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.filter-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    cursor: none;
    font-family: inherit;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: all 0.3s var(--transition);
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s var(--transition);
    z-index: -1;
}

.filter-btn:hover::before,
.filter-btn.active::before {
    transform: scaleX(1);
    transform-origin: left;
}

.filter-btn:hover,
.filter-btn.active {
    border-color: var(--accent);
    color: white;
}

/* Galería */
.gallery-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem; /* espacio mayor entre tarjetas */
    grid-auto-rows: 300px;
    grid-auto-flow: dense;
}

.gallery-item {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    background: var(--secondary);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s var(--transition) forwards;
    transition: transform 0.3s var(--transition);
}

.gallery-item:nth-child(3n) {
    grid-row: span 2;
}

.gallery-item:nth-child(5n) {
    grid-column: span 2;
}

.gallery-item.hidden {
    display: none;
}

.image-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.3) 50%, transparent 100%);
    opacity: 0;
    transition: opacity 0.4s var(--transition);
    display: flex;
    align-items: flex-end;
    padding: 2rem;
}

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

.overlay-content {
    transform: translateY(20px);
    transition: transform 0.4s var(--transition);
}

.gallery-item:hover .overlay-content {
    transform: translateY(0);
}

.overlay-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: white;
}

.overlay-content p {
    color: var(--accent);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.view-btn {
    background: var(--accent);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-family: inherit;
    font-size: 0.875rem;
    cursor: none;
    transition: all 0.3s var(--transition);
    opacity: 0;
    transform: translateY(10px);
}

.gallery-item:hover .view-btn {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.1s;
}

.view-btn:hover {
    background: var(--accent-hover);
    transform: scale(1.05);
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.98);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s var(--transition);
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    transform: scale(0.9);
    transition: transform 0.4s var(--transition);
}

.lightbox.active .lightbox-content {
    transform: scale(1);
}

.lightbox-img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.lightbox-info {
    text-align: center;
    margin-top: 2rem;
    color: white;
}

.lightbox-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.lightbox-category {
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.875rem;
}

.lightbox-counter {
    display: block;
    margin-top: 1rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 2rem;
    cursor: none;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s var(--transition);
    z-index: 1001;
}

.lightbox-close:hover {
    background: var(--accent);
    transform: rotate(90deg);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 2rem;
    cursor: none;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s var(--transition);
    z-index: 1001;
}

.lightbox-nav:hover {
    background: var(--accent);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-nav.prev {
    left: 2rem;
}

.lightbox-nav.next {
    right: 2rem;
}

.lightbox-loader {
    position: absolute;
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    opacity: 0;
    visibility: hidden;
}

.lightbox.loading .lightbox-loader {
    opacity: 1;
    visibility: visible;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Footer */
.footer {
    text-align: center;
    padding: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
    body {
        cursor: auto;
    }
    
    .cursor, .cursor-follower {
        display: none;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 250px;
    }
    
    .gallery-item:nth-child(3n),
    .gallery-item:nth-child(5n) {
        grid-row: span 1;
        grid-column: span 1;
    }
    
    .lightbox-nav {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }
    
    .lightbox-nav.prev { left: 1rem; }
    .lightbox-nav.next { right: 1rem; }
    
    .filters {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.75rem;
    }
}

/* Animaciones de entrada escalonadas */
.gallery-item:nth-child(1) { animation-delay: 0.1s; }
.gallery-item:nth-child(2) { animation-delay: 0.2s; }
.gallery-item:nth-child(3) { animation-delay: 0.3s; }
.gallery-item:nth-child(4) { animation-delay: 0.4s; }
.gallery-item:nth-child(5) { animation-delay: 0.5s; }
.gallery-item:nth-child(6) { animation-delay: 0.6s; }
.gallery-item:nth-child(7) { animation-delay: 0.7s; }
.gallery-item:nth-child(8) { animation-delay: 0.8s; }
.gallery-item:nth-child(9) { animation-delay: 0.9s; }
.gallery-item:nth-child(10) { animation-delay: 1s; }
.gallery-item:nth-child(11) { animation-delay: 1.1s; }
.gallery-item:nth-child(12) { animation-delay: 1.2s; }