/* 
 * Design System: Gallery-Grade Minimalism
 * La interfaz desaparece. Solo el arte existe.
 */

:root {
    /* Palette - Ultra White */
    --bg-color: #FFFFFF;
    --bg-subtle: #FAFAFA;
    --text-color: #1a1a1a;
    --text-muted: #999999;
    --text-light: #CCCCCC;
    --border-color: #EEEEEE;

    /* Typography - Editorial Sophistication */
    --font-serif: 'Playfair Display', 'Cormorant Garamond', serif;
    /* Editorial, clásica */
    --font-sans: 'Inter', 'Montserrat', sans-serif;
    /* Ultra-fina, moderna */

    /* Spacing - Extremo */
    --spacing-xs: 1rem;
    --spacing-sm: 2rem;
    --spacing-md: 4rem;
    --spacing-lg: 8rem;
    --spacing-xl: 12rem;

    /* Transitions - Silky smooth */
    --transition-fade: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-all: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-padding-top: 150px;
    /* Altura aproximada del nav sticky + margen */
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-sans);
    font-weight: 300;
    font-size: 14px;
    line-height: 2;
    /* Mucho interlineado */
    letter-spacing: 0.05em;
    /* Tracking amplio */
    overflow-x: hidden;
}

/* Typography Hierarchy */
h1,
h2,
h3 {
    font-family: var(--font-serif);
    font-weight: 400;
    letter-spacing: 0.08em;
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

h1 {
    font-size: 3rem;
    margin-top: var(--spacing-lg);
    font-weight: 300;
}

h2 {
    font-size: 1.8rem;
    font-weight: 300;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.2rem;
    font-weight: 400;
}

p {
    font-size: 15px;
    line-height: 2.2;
    color: #444;
}

a {
    color: inherit;
    text-decoration: none;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    transition: var(--transition-fade);
}

a:hover {
    opacity: 0.5;
    /* Hover effect minimal: solo fade */
}

img {
    max-width: 100%;
    display: block;
}

/* Layout */
.container {
    width: 88%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.section-padding {
    padding: var(--spacing-xl) 0;
}

.text-center {
    text-align: center;
}

.uppercase {
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

/* Navigation - Invisible hasta que se necesita */
nav {
    padding: var(--spacing-md) 0;
    background: var(--bg-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid transparent;
    transition: border-color 0.4s ease;
}

nav.scrolled {
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 0.4em;
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-links a {
    color: var(--text-muted);
    font-weight: 300;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--text-color);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* Hero - Respiro total */
.hero {
    min-height: 20vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: var(--spacing-sm) 0;
}

.hero-content {
    max-width: 700px;
}

.hero-content h1 {
    margin-bottom: var(--spacing-xs);
}

.hero-subtitle {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.3rem;
    color: var(--text-muted);
    font-weight: 300;
    letter-spacing: 0.03em;
    margin-top: var(--spacing-sm);
}

/* Bio / Statement - Editorial */
.bio-section {
    background-color: var(--bg-subtle);
    padding: var(--spacing-xl) 0;
}

.bio-content {
    max-width: 680px;
    /* Columna estrecha para lectura */
    margin: 0 auto;
}

.bio-text p {
    margin-bottom: 2rem;
    text-align: justify;
    color: #555;
}

.bio-quote {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-style: italic;
    font-weight: 300;
    color: var(--text-color);
    margin: var(--spacing-lg) 0;
    text-align: center;
    line-height: 1.6;
}

/* Gallery - Cuadros en pared */
.gallery-nav {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.filter-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    padding: 0;
    transition: var(--transition-fade);
}

.filter-btn.active {
    color: var(--text-color);
}

.filter-btn:hover {
    opacity: 0.6;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: var(--spacing-lg);
    /* Espaciado EXTREMO entre obras */
    margin-top: var(--spacing-md);
}

.gallery-item {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1;
    background-color: #FAFAFA;
    opacity: 0;
    animation: fadeInItem 0.8s ease forwards;
    /* For JS filtering transitions */
}

@keyframes fadeInItem {
    to {
        opacity: 1;
    }
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* Transición LENTA para zoom-out (cuando sale el mouse) */
    transition: transform 1.6s cubic-bezier(0.4, 0, 0.2, 1),
        filter 1.6s cubic-bezier(0.4, 0, 0.2, 1);
    filter: brightness(0.98);
    /* Muy sutil bajada de brillo inicial */
}

.gallery-item:hover img {
    transform: scale(1.08);
    /* Zoom más pronunciado */
    filter: brightness(1);
    /* Vuelve a brillo normal */
    /* Transición RÁPIDA para zoom-in (cuando entra el mouse) */
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
        filter 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Services - Minimalista absoluto */
.services-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.service-card {
    padding: var(--spacing-md);
    background: transparent;
    border: 1px solid var(--border-color);
    text-align: left;
    transition: border-color 0.3s ease;
}

.service-card:hover {
    border-color: var(--text-light);
}

.service-card h3 {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    text-align: left;
}

.service-list {
    list-style: none;
    margin-top: var(--spacing-sm);
    padding-left: 0;
}

.service-list li {
    color: var(--text-muted);
    margin-bottom: 0.8rem;
    font-size: 13px;
    line-height: 1.8;
}

.service-list li::before {
    content: "—";
    margin-right: 10px;
    color: var(--text-light);
}

.btn-outline {
    display: inline-block;
    border: 1px solid var(--text-color);
    padding: 14px 32px;
    margin-top: 2rem;
    font-size: 10px;
    letter-spacing: 0.25em;
    transition: var(--transition-all);
}

.btn-outline:hover {
    background: var(--text-color);
    color: #fff;
}

/* Footer - Casi invisible */
footer {
    padding: var(--spacing-lg) 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--text-light);
    font-size: 10px;
    letter-spacing: 0.15em;
    margin-top: var(--spacing-xl);
}

/* Responsive - Elegancia en Mobile */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 4rem;
        --spacing-xl: 6rem;
    }

    .logo {
        font-size: 1.2rem;
        letter-spacing: 0.3em;
    }

    .nav-links {
        gap: 1.5rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .gallery-grid {
        grid-template-columns: 1fr;
        /* Columna única */
        gap: var(--spacing-md);
    }

    .bio-content {
        padding: 0 var(--spacing-sm);
    }
}