/**
 * Galerie Julian Sander - Collekton Design System
 * 
 * Gallery-focused implementation of Collekton UI system
 * Migration from WordPress to modern partials-based architecture
 */

/* Core Collekton Design System */
@import url('core/variables.css');
@import url('core/reset.css');
@import url('core/typography.css');
@import url('core/layout.css');
@import url('core/forms.css');
@import url('core/components.css');

/* Gallery-specific components */
@import url('gallery/navigation.css');
@import url('gallery/hero.css');
@import url('gallery/artwork-cards.css');
@import url('gallery/exhibition-cards.css');
@import url('gallery/artist-cards.css');
@import url('gallery/detail-pages.css');

/* Collekton Gallery Customizations */
:root {
    /* Override Collekton colors with gallery-specific palette */
    --color-primary-950: #1f1c1a;      /* Deep gallery charcoal */
    --color-accent-500: #8b7355;       /* Warm gallery bronze */
    --color-neutral-50: #fafaf9;       /* Gallery paper white */
    
    /* Gallery-specific spacing (tighter for art density) */
    --gallery-card-gap: var(--space-5);
    --gallery-section-padding: var(--space-16);
}

/* Navigation - Dark background with inversion filter on backdrop */
.site-header {
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(20px) invert(1);
    -webkit-backdrop-filter: blur(10px) invert(1);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
    color: var(--color-white);
    height: var(--header-height);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 var(--space-6);
    max-width: var(--container-2xl);
    margin: 0 auto;
}

.logo-text {
    font-family: var(--font-sans)!important;
    font-size: 1.5rem !important;
    font-weight: 400 !important;
    letter-spacing: 0.02em !important;
    color: var(--color-white) !important;
}

.nav-content-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.logo {
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--color-white);
    text-decoration: none;
}

.main-nav {
    display: flex;
    gap: var(--space-8);
}

.nav-link {
    color: var(--color-white) !important;
    font-size: var(--text-sm) !important;
    font-weight: var(--font-bold) !important;
    text-transform: uppercase !important;
    letter-spacing: var(--tracking-wider) !important;
    padding: var(--space-2) 0 !important;
    border-bottom: 2px solid transparent !important;
    transition: all var(--duration-200) var(--ease-out) !important;
    text-decoration: none !important;
}

.nav-link:hover {
    opacity: 0.8;
    text-decoration: none;
}

.nav-link.active {
    border-bottom-color: var(--color-neutral-50);
}

/* Page Transition Blur Overlay */
.page-blur-overlay {
    position: fixed;
    top: var(--header-height, 80px);
    left: 0;
    right: 0;
    bottom: 0;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.1);
    z-index: calc(var(--z-sticky) - 1);
    pointer-events: none;
}

/* Featured Artwork Section */
.featured-artwork-section {
    background: var(--color-primary-950, #1f1c1a);
    color: var(--color-white);
    padding: var(--space-16, 4rem) 0;
    margin: var(--space-12, 3rem) 0;
}

.featured-artwork-section a {
    color: var(--color-white);
    text-decoration: none;
}

.featured-artwork-section a:hover {
    opacity: 0.8;
}

.featured-artwork-container {
    max-width: var(--container-xl, 1200px);
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    align-items: stretch;
    min-height: 400px;
}

.featured-artwork-image-wrapper {
    flex: 0 0 50%;
    max-width: 50%;
    display: flex;
    align-items: flex-start;
    margin-top: calc(var(--space-16, 4rem) * -1);
    margin-bottom: calc(var(--space-16, 4rem) * -1);
    margin-left: calc(var(--space-6, 1.5rem) * -1);
}

.featured-artwork-image {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.featured-artwork-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.featured-artwork-content {
    flex: 1;
    padding: var(--space-16, 4rem) var(--space-8, 2rem);
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: right;
    align-items: flex-end;
}

/* Gallery Hero Section */
.hero {
    position: relative;
    min-height: 60vh;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: flex-end;
    padding: var(--gallery-section-padding);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(31,28,26,0.4), rgba(31,28,26,0.8));
}

.hero-content {
    position: relative;
    z-index: var(--z-10);
    color: var(--color-neutral-0);
    max-width: var(--container-lg);
}

.hero-label {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: var(--color-accent-500);
    color: var(--color-neutral-0);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    margin-bottom: var(--space-4);
    border-radius: var(--radius-sm);
}

.hero-title {
    font-family: var(--font-serif);
    font-size: var(--text-5xl);
    font-weight: var(--font-light);
    margin-bottom: var(--space-4);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.hero-dates {
    font-size: var(--text-lg);
    margin-bottom: var(--space-6);
    opacity: 0.9;
}

/* Section Layouts */
.section {
    padding: var(--gallery-section-padding) var(--space-6);
}

.section-dark {
    background: var(--color-primary-950);
    color: var(--color-neutral-0);
}

.section-title {
    font-family: var(--font-serif);
    font-size: var(--text-3xl);
    font-weight: var(--font-medium);
    text-align: center;
    margin-bottom: var(--space-12);
    color: var(--color-primary-950);
}

.section-dark .section-title {
    color: var(--color-neutral-0);
}

/* Grid Systems */
.artwork-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--gallery-card-gap);
    margin-bottom: var(--space-12);
}

.artist-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--gallery-card-gap);
}

.artists-list-3col {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2) var(--space-6);
    column-gap: var(--space-8);
}

.artists-list-3col .artist-link {
    display: block;
    padding: var(--space-2) 0;
    color: var(--color-neutral-800);
    text-decoration: none;
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    transition: color var(--duration-200) var(--ease-in-out);
    border-bottom: 1px solid transparent;
}

.artists-list-3col .artist-link:hover {
    color: var(--color-primary-700);
    border-bottom-color: var(--color-primary-300);
}

@media (max-width: 1024px) {
    .artists-list-3col {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .artists-list-3col {
        grid-template-columns: 1fr;
    }
}

.exhibition-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--gallery-card-gap);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--gallery-card-gap);
}

.home-section-spacing {
    margin-top: var(--space-12);
    margin-bottom: var(--space-12);
}

.home-section-spacing:first-child {
    margin-top: 0;
}

.section-heading {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-neutral-900);
    margin-bottom: var(--space-6);
    margin-top: 0;
}

/* Card Base */
.gallery-card {
    background: var(--color-neutral-0);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: all var(--duration-300) var(--ease-out);
    display: block;
    text-decoration: none;
    color: inherit;
}

.gallery-card:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
    text-decoration: none;
}

.card-image {
    position: relative;
    aspect-ratio: 4 / 5;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-500) var(--ease-out);
}

.gallery-card:hover .card-image img {
    transform: scale(1.05);
}

.card-content {
    padding: var(--space-5);
}

.card-title {
    font-family: var(--font-serif);
    font-size: var(--text-lg);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-2);
    color: var(--color-primary-950);
}

.card-artist {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-accent-700);
    margin-bottom: var(--space-1);
}

.card-meta {
    font-size: var(--text-xs);
    color: var(--color-neutral-500);
    margin-bottom: var(--space-2);
}

.card-date {
    font-size: var(--text-xs);
    color: var(--color-neutral-500);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    margin-bottom: var(--space-2);
}

/* Footer */
.site-footer {
    background: var(--color-primary-950);
    color: var(--color-neutral-200);
    padding: var(--space-16) var(--space-6) var(--space-12);
}

.footer-inner {
    max-width: var(--container-xl);
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer-col h4 {
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    color: var(--color-neutral-0);
    margin-bottom: var(--space-4);
}

.footer-col p {
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--color-neutral-400);
}

.footer-col a {
    color: var(--color-neutral-300);
    transition: color var(--duration-200) var(--ease-out);
}

.footer-col a:hover {
    color: var(--color-accent-400);
    text-decoration: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-nav {
        display: none; /* TODO: Add mobile menu */
    }
    
    .artwork-grid,
    .artist-grid,
    .exhibition-grid,
    .news-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: var(--space-4);
    }
    
    .hero {
        min-height: 50vh;
        padding: var(--space-12) var(--space-4);
    }
    
    .section {
        padding: var(--space-12) var(--space-4);
    }
}

/* Loading States */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.skeleton {
    background: linear-gradient(90deg, 
        var(--color-neutral-200) 0%, 
        var(--color-neutral-100) 50%, 
        var(--color-neutral-200) 100%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

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

/* Advanced Navigation Readability Script */
/* Add this JavaScript to automatically adjust navigation based on background */