/**
 * Modern CSS Stylesheet for Claudio Caixeta Art Website
 * Professional gallery design with responsive layout and optimized performance
 */

/* ===========================
   TABLE OF CONTENTS
   ===========================
   1. CSS Reset & Base Styles
   2. CSS Custom Properties
   3. Typography
   4. Layout & Components
   5. Navigation
   6. Hero Section
   7. Artwork Grid & Cards
   8. Modal System
   9. Footer
   10. Responsive Design
   11. Animations & Transitions
   =========================== */

/* 1. CSS Reset & Base Styles */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* 2. CSS Custom Properties */
:root {
    /* Color Palette - Professional Art Gallery Theme */
    --primary-color: #1a1a1a;
    --primary-light: #2d2d2d;
    --secondary-color: #f5f5f5;
    --accent-color: #c9a876;
    --accent-light: #e8d5b7;
    --background-color: #fefefe;
    --background-alt: #f9f9f9;
    --background-dark: #1a1a1a;
    --text-color: #1a1a1a;
    --text-light: #4a4a4a;
    --text-muted: #6a6a6a;
    --border-color: #e5e5e5;
    --border-light: #f0f0f0;
    --shadow-subtle: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-medium: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
    --shadow-heavy: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
    --shadow-artwork: 0 4px 12px rgba(0,0,0,0.15);
    
    /* Typography Scale - Premium Gallery Fonts */
    --font-heading: 'Crimson Text', serif;
    --font-body: 'Source Sans Pro', sans-serif;
    --font-accent: 'Cormorant Garamond', serif;
    --font-size-xs: 0.875rem;
    --font-size-sm: 1rem;
    --font-size-base: 1.125rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 1.875rem;
    --font-size-3xl: 2.25rem;
    --font-size-4xl: 2.75rem;
    --font-size-5xl: 3.5rem;
    --font-size-6xl: 4.5rem;
    
    /* Spacing - More refined spacing scale */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    --spacing-5xl: 8rem;
    
    /* Layout Dimensions */
    --container-max-width: 1400px;
    --border-radius: 2px;
    --border-radius-lg: 4px;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
}

/* 3. Typography - Refined Gallery Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
}

h1 { 
    font-size: var(--font-size-5xl);
    font-family: var(--font-accent);
    font-weight: 300;
    letter-spacing: -1px;
}
h2 { 
    font-size: var(--font-size-4xl);
    font-family: var(--font-accent);
    font-weight: 300;
    letter-spacing: -0.5px;
}
h3 { 
    font-size: var(--font-size-3xl);
    font-weight: 400;
}
h4 { 
    font-size: var(--font-size-2xl);
    font-weight: 400;
}
h5 { 
    font-size: var(--font-size-xl);
    font-weight: 500;
}
h6 { 
    font-size: var(--font-size-lg);
    font-weight: 500;
}

@media (max-width: 768px) {
    h1 { font-size: var(--font-size-4xl); }
    h2 { font-size: var(--font-size-3xl); }
    h3 { font-size: var(--font-size-2xl); }
}

p {
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
    font-weight: 300;
}

/* Links */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Buttons - Professional Gallery Style */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-family: var(--font-body);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: var(--transition);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-subtle);
}

.btn-primary:hover {
    background-color: var(--primary-light);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--background-alt);
    color: var(--text-color);
    border-color: var(--text-color);
}

.btn-outline {
    background-color: transparent;
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
}

.btn-outline:hover {
    background-color: var(--accent-color);
    color: white;
}

.btn-whatsapp {
    background-color: #25d366;
    color: white;
}

.btn-whatsapp:hover {
    background-color: #20b858;
    color: white;
}

.btn-instagram {
    background-color: #e1306c;
    color: white;
}

.btn-instagram:hover {
    background-color: #c13584;
    color: white;
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.nav {
    padding: var(--spacing-md) 0;
}

.nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand .logo {
    height: 50px;
    width: auto;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    transition: var(--transition);
}

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

.nav-link {
    font-weight: 500;
    color: var(--text-color);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: white;
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-medium);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
}

/* Hero Section - Gallery Style */
.hero {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    min-height: 100vh;
    padding-top: 100px;
    gap: var(--spacing-5xl);
    background: linear-gradient(135deg, var(--background-color) 0%, var(--background-alt) 100%);
}

.hero-content {
    padding: var(--spacing-4xl) 0;
    max-width: 600px;
}

.hero-title {
    font-family: var(--font-accent);
    font-size: var(--font-size-6xl);
    font-weight: 300;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
    letter-spacing: -1px;
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: var(--font-size-lg);
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent-color);
    margin-bottom: var(--spacing-2xl);
}

.hero-description {
    font-size: var(--font-size-xl);
    line-height: 1.7;
    margin-bottom: var(--spacing-3xl);
    color: var(--text-light);
    font-weight: 300;
    white-space: pre-line;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-artwork);
    background: white;
    padding: var(--spacing-xl);
}

.hero-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 0%, rgba(201,168,118,0.1) 100%);
    pointer-events: none;
    z-index: 1;
}

.hero-image img {
    width: 100%;
    height: 700px;
    object-fit: cover;
    border-radius: var(--border-radius);
    position: relative;
    z-index: 0;
}

@media (max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
        padding-top: 120px;
        gap: var(--spacing-2xl);
    }
    
    .hero-image {
        order: -1;
    }
    
    .hero-image img {
        height: 400px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
}

/* Section Styles - Gallery Layout */
section {
    padding: var(--spacing-5xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-5xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 2px;
    background-color: var(--accent-color);
    margin: var(--spacing-xl) auto 0;
}

.section-description {
    font-size: var(--font-size-xl);
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
    font-weight: 400;
}

.section-footer {
    text-align: center;
    margin-top: var(--spacing-5xl);
}

/* Featured Artworks - Gallery Masonry Layout */
.featured-artworks {
    background-color: var(--background-color);
    padding: var(--spacing-5xl) 0;
}

.artworks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
    grid-auto-rows: 1fr; /* Equal height rows */
}

.artwork-card {
    background-color: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-subtle);
    transition: var(--transition);
    border: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.artwork-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-artwork);
}

.artwork-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3; /* Standard aspect ratio for all cards */
}

.artwork-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

/* Mobile Single Column Layout with Natural Aspect Ratios */
@media (max-width: 768px) {
    .artworks-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .artwork-image {
        aspect-ratio: unset; /* Remove fixed aspect ratio on mobile */
        min-height: 250px;
        max-height: 80vh;
        display: flex;
        align-items: center;
        justify-content: center;
        background-color: var(--background-alt);
        padding: var(--spacing-md);
    }
    
    .artwork-image img {
        width: auto;
        height: auto;
        max-width: 100%;
        max-height: 70vh;
        object-fit: contain; /* Show natural aspect ratio */
        object-position: center;
        border-radius: var(--border-radius);
        box-shadow: var(--shadow-subtle);
    }
    
    /* Ensure very wide images don't overflow */
    .artwork-image img[data-aspect="wide"] {
        width: 100%;
        height: auto;
        max-height: 50vh;
    }
    
    /* Ensure very tall images fit well */
    .artwork-image img[data-aspect="tall"] {
        height: 70vh;
        width: auto;
        max-width: 100%;
    }
}

.artwork-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(26, 26, 26, 0.8) 0%,
        rgba(26, 26, 26, 0.4) 50%,
        rgba(201, 168, 118, 0.3) 100%
    );
    display: none; /* Hidden on desktop */
    align-items: flex-end;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    opacity: 0;
    transition: var(--transition);
}

.artwork-overlay .btn {
    font-size: var(--font-size-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
    min-width: auto;
    opacity: 0.9;
    backdrop-filter: blur(2px);
}

.artwork-overlay .btn:hover {
    opacity: 1;
    transform: translateY(-1px);
}

/* Overlay is now hidden on desktop, so hover effects are disabled */

.artwork-card:hover .artwork-image img {
    transform: scale(1.08);
}

.artwork-info {
    padding: var(--spacing-2xl);
    background-color: white;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.artwork-actions {
    display: flex; /* Show on desktop - actions moved to bottom */
    gap: var(--spacing-xs);
    margin-top: auto; /* Push buttons to bottom */
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-light);
}

.artwork-actions .btn {
    flex: 1;
    font-size: var(--font-size-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: center;
    justify-content: center;
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
    opacity: 0.8;
    transition: var(--transition-fast);
}

.artwork-actions .btn:hover {
    opacity: 1;
    transform: none;
}

.artwork-details-content {
    display: none; /* Hidden by default on all devices */
}

/* Mobile Button Layout - Move to Bottom */
@media (max-width: 768px) {
    .artwork-overlay {
        display: none; /* Hide overlay on mobile */
    }
    
    .artwork-card:hover .artwork-image img {
        transform: none; /* Disable image scaling on mobile */
    }
    
    .artwork-info {
        padding: var(--spacing-lg);
    }
    
    .artwork-details-content {
        padding: var(--spacing-lg) 0;
        margin-top: var(--spacing-lg);
        border-top: 1px solid var(--border-light);
        animation: slideDown 0.3s ease-out;
    }
    
    .artwork-details-content.expanded {
        display: block;
    }
    
    .artwork-description {
        margin-bottom: var(--spacing-lg);
    }
    
    .artwork-description p {
        color: var(--text-light);
        line-height: 1.6;
        font-size: var(--font-size-base);
        margin: 0;
    }
    
    .artwork-technical-details {
        background-color: var(--background-alt);
        padding: var(--spacing-lg);
        border-radius: var(--border-radius);
        margin-bottom: var(--spacing-lg);
    }
    
    .detail-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: var(--spacing-sm) 0;
        border-bottom: 1px solid var(--border-color);
        font-size: var(--font-size-sm);
    }
    
    .detail-item:last-child {
        border-bottom: none;
    }
    
    .detail-item strong {
        color: var(--text-color);
        font-weight: 600;
    }
    
    .detail-item span {
        color: var(--text-light);
        text-align: right;
    }
    
    .artwork-actions {
        display: flex; /* Show on mobile */
        gap: var(--spacing-xs);
        margin-top: auto; /* Push buttons to bottom on mobile too */
        padding-top: var(--spacing-md);
        border-top: 1px solid var(--border-light);
    }

    .artwork-actions .btn {
        flex: 1;
        font-size: var(--font-size-xs);
        padding: var(--spacing-xs) var(--spacing-sm);
        text-align: center;
        justify-content: center;
        transition: var(--transition-fast);
        font-weight: 400;
        text-transform: none;
        letter-spacing: 0;
        opacity: 0.8;
        min-height: 32px;
    }

    .artwork-actions .btn:hover {
        opacity: 1;
    }
    
    .mobile-expand.expanded {
        background-color: var(--accent-color);
        color: white;
    }
    
    .mobile-expand.expanded:hover {
        background-color: var(--accent-light);
    }
}

/* Animation for mobile expansion */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
        max-height: 0;
    }
    to {
        opacity: 1;
        transform: translateY(0);
        max-height: 500px;
    }
}

.artwork-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    line-height: 1.3;
    min-height: 2.6em; /* Reserve space for up to 2 lines */
    display: flex;
    align-items: flex-start;
}

.artwork-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
}

.artwork-size {
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-color);
    font-weight: 600;
}

.artwork-price {
    font-weight: 700;
    color: var(--accent-color);
    font-size: var(--font-size-base);
}

.artwork-description {
    color: var(--text-light);
    font-size: var(--font-size-base);
    line-height: 1.7;
    font-weight: 400;
}

/* Exhibitions Section - Professional Gallery Timeline */
.exhibitions {
    background-color: var(--background-alt);
}

.exhibitions-content {
    margin-top: var(--spacing-3xl);
}

.exhibitions-content .row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
}

.exhibitions-content .col-md-6 {
    background-color: white;
    padding: var(--spacing-3xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-subtle);
    border: 1px solid var(--border-light);
    position: relative;
}

.exhibitions-content .col-md-6::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent-color), var(--accent-light));
    border-radius: 0 var(--border-radius-lg) var(--border-radius-lg) 0;
}

.exhibitions-content b {
    color: var(--primary-color);
    font-family: var(--font-accent);
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xl);
    display: block;
    font-weight: 400;
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: var(--spacing-sm);
}

.exhibitions-content {
    line-height: 1.8;
    font-size: var(--font-size-sm);
    color: var(--text-color);
}

.exhibitions-content br {
    margin-bottom: var(--spacing-sm);
}

/* Show More Artworks Functionality */
.artwork-card.show-more {
    display: none;
}

.artwork-card.show-initial {
    display: block;
}

.show-more-container {
    text-align: center;
    margin-top: var(--spacing-4xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--border-light);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    transition: all var(--transition);
}

.btn-secondary:hover {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-3xl);
    font-size: 1.1rem;
    font-weight: 600;
}

.remaining-count {
    font-size: 0.9rem;
    opacity: 0.8;
    font-weight: normal;
}

/* Collections */
.collections-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.collection-card {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    aspect-ratio: 4/3;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.collection-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.collection-image {
    position: relative;
    height: 100%;
}

.collection-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.collection-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.6) 50%, rgba(0,0,0,0.3) 100%);
    display: flex;
    align-items: flex-end;
    padding: var(--spacing-xl);
}

.collection-content {
    color: white;
}

.collection-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
    color: white;
}

.collection-description {
    display: none;
}

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

/* Collection button styling */
.collection-overlay .btn {
    font-size: var(--font-size-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 500;
    text-transform: none;
    letter-spacing: 0.5px;
    min-width: auto;
    opacity: 0.95;
}

.collection-overlay .btn:hover {
    opacity: 1;
    transform: translateY(-2px);
}

/* About Section - Professional Artist Presentation */
.about {
    background: linear-gradient(135deg, var(--background-color) 0%, var(--background-alt) 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: var(--spacing-5xl);
    align-items: start;
}

.about-image {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-artwork);
    background: white;
    padding: var(--spacing-xl);
}

.about-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 0%, rgba(201,168,118,0.05) 100%);
    pointer-events: none;
    z-index: 1;
}

.about-image img {
    width: 100%;
    height: 600px;
    object-fit: cover;
    border-radius: var(--border-radius);
    position: relative;
    z-index: 0;
}

.about-bio {
    font-size: var(--font-size-xl);
    line-height: 1.7;
    margin-bottom: var(--spacing-3xl);
    color: var(--text-light);
    font-weight: 400;
    white-space: pre-line;
}

.about-highlights {
    margin-bottom: var(--spacing-3xl);
}

.about-highlights h3 {
    color: var(--primary-color);
    font-family: var(--font-accent);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.about-highlights h3::after {
    content: '';
    display: block;
    width: 40px;
    height: 2px;
    background-color: var(--accent-color);
    margin-top: var(--spacing-sm);
}

.highlights-list {
    list-style: none;
    margin-top: var(--spacing-xl);
}

.highlights-list li {
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--border-light);
    position: relative;
    padding-left: var(--spacing-2xl);
    font-size: var(--font-size-base);
    color: var(--text-color);
    transition: var(--transition-fast);
}

.highlights-list li:hover {
    color: var(--accent-color);
    padding-left: var(--spacing-3xl);
}

.highlights-list li:before {
    content: "◆";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.about-galleries h3 {
    color: var(--primary-color);
    font-family: var(--font-accent);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.about-galleries h3::after {
    display: none;
}

.galleries-section {
    background-color: transparent;
    padding: var(--spacing-lg) 0;
    border-radius: 0;
    box-shadow: none;
    border: none;
}

.galleries-section h4 {
    color: var(--primary-color);
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-sm);
    text-transform: none;
    letter-spacing: normal;
    font-weight: 500;
}

.galleries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.gallery-item {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: transparent;
    border-radius: 0;
    font-size: var(--font-size-sm);
    text-align: left;
    border: none;
    transition: none;
    font-weight: 400;
}

.gallery-item:hover {
    background-color: transparent;
    transform: none;
    box-shadow: none;
}

@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .about-image img {
        height: 400px;
    }

    .exhibitions-content .row {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .exhibitions-content .col-md-6 {
        padding: var(--spacing-lg);
    }
}

/* Instagram Section - Sophisticated Social */
.instagram-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.instagram-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.05"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.05"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.03"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.instagram-content {
    position: relative;
    z-index: 1;
}

.instagram-content h2 {
    color: white;
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-accent);
    font-weight: 300;
}

.instagram-content p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-3xl);
    opacity: 0.9;
    font-weight: 300;
}

/* Contact Section - Professional Layout */
.contact {
    background: linear-gradient(135deg, var(--background-color) 0%, var(--background-alt) 100%);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-4xl);
}

@media (max-width: 768px) {
    .contact-info {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-2xl);
    background-color: white;
    border-radius: var(--border-radius-lg);
    text-align: left;
    flex-direction: row;
    box-shadow: var(--shadow-subtle);
    border: 1px solid var(--border-light);
    transition: var(--transition);
    width: 100%;
    box-sizing: border-box;
}

@media (max-width: 768px) {
    .contact-item {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-lg);
        padding: var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    .contact-item {
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
    }
}

.contact-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.contact-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
    box-shadow: var(--shadow-subtle);
}

@media (max-width: 768px) {
    .contact-icon {
        width: 60px;
        height: 60px;
    }
}

@media (max-width: 480px) {
    .contact-icon {
        width: 50px;
        height: 50px;
    }
    
    .contact-icon svg {
        width: 20px;
        height: 20px;
    }
}

.contact-details h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
    font-family: var(--font-accent);
    font-size: var(--font-size-xl);
    font-weight: 400;
}

.contact-details p {
    color: var(--text-light);
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: 300;
    word-break: break-word;
}

@media (max-width: 768px) {
    .contact-details h3 {
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-xs);
    }
    
    .contact-details p {
        font-size: var(--font-size-base);
    }
}

@media (max-width: 480px) {
    .contact-details h3 {
        font-size: var(--font-size-base);
    }
    
    .contact-details p {
        font-size: var(--font-size-sm);
    }
}

.contact-actions {
    text-align: center;
    margin-top: var(--spacing-xl);
}

@media (max-width: 768px) {
    .contact-actions {
        margin-top: var(--spacing-lg);
    }
    
    .contact-actions .btn {
        width: 100%;
        max-width: 100%;
        font-size: var(--font-size-sm);
        padding: var(--spacing-md) var(--spacing-lg);
        white-space: normal;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .contact-actions {
        margin-top: var(--spacing-md);
    }
    
    .contact-actions .btn {
        font-size: var(--font-size-xs);
        padding: var(--spacing-sm) var(--spacing-md);
        line-height: 1.3;
    }
}

/* Footer - Professional Gallery Footer */
.footer {
    background: linear-gradient(135deg, var(--background-dark) 0%, var(--primary-color) 100%);
    color: white;
    padding: var(--spacing-5xl) 0 var(--spacing-2xl);
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="footerGrain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="0.5" fill="white" opacity="0.03"/><circle cx="75" cy="75" r="0.5" fill="white" opacity="0.03"/></pattern></defs><rect width="100" height="100" fill="url(%23footerGrain)"/></svg>');
    pointer-events: none;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    margin-bottom: var(--spacing-3xl);
    position: relative;
    z-index: 1;
    align-items: center;
}

.footer-logo {
    height: 80px;
    width: auto;
    margin-bottom: var(--spacing-xl);
    filter: brightness(0) invert(1);
}

.footer-contact h4 {
    color: white;
    margin-bottom: var(--spacing-xl);
    font-family: var(--font-accent);
    font-size: var(--font-size-xl);
    font-weight: 400;
    position: relative;
}

.footer-contact h4::after {
    content: '';
    display: block;
    width: 30px;
    height: 2px;
    background-color: var(--accent-color);
    margin-top: var(--spacing-sm);
}

.footer-contact p {
    margin-bottom: var(--spacing-md);
    color: rgba(255, 255, 255, 0.8);
    font-weight: 300;
}

.social-links {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.social-links a {
    width: 50px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.social-links a:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(201, 168, 118, 0.4);
}

.social-links a[aria-label="WhatsApp"]:hover {
    background-color: #25d366;
    box-shadow: 0 5px 15px rgba(37, 211, 102, 0.4);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-2xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    position: relative;
    z-index: 1;
    font-weight: 300;
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .footer-brand {
        order: 1;
    }
    
    .footer-contact {
        order: 2;
    }
    
    .social-links {
        justify-content: center;
    }
}

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--shadow-medium);
    z-index: 1000;
    transition: var(--transition);
}

.whatsapp-float:hover {
    background-color: #20b858;
    transform: scale(1.1);
    color: white;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.modal.active {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: var(--spacing-lg);
    min-height: 100vh;
    box-sizing: border-box;
}

.modal-content {
    background-color: white;
    border-radius: var(--border-radius);
    max-width: 900px;
    width: 100%;
    position: relative;
    overflow: hidden;
    margin: auto 0;
    max-height: calc(100vh - 2 * var(--spacing-lg));
    display: flex;
    flex-direction: column;
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    z-index: 10;
    color: white;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.modal-close:hover {
    background-color: rgba(0, 0, 0, 0.9);
    transform: scale(1.1);
}

.modal-body {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 0;
    overflow: hidden;
    flex: 1;
}

.modal-image {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--background-alt);
    padding: var(--spacing-xl);
    min-height: 400px;
}

.modal-image img {
    width: 100%;
    height: auto;
    max-height: 60vh;
    object-fit: contain; /* Show true aspect ratio */
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
}

.modal-info {
    padding: var(--spacing-2xl);
    overflow-y: auto;
    max-height: 80vh;
}

.modal-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--text-light);
}

.modal-details {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    background-color: var(--background-alt);
    border-radius: var(--border-radius);
}

.modal-details p {
    margin-bottom: var(--spacing-sm);
}

.modal-actions {
    margin-top: var(--spacing-xl);
}

/* Mobile Modal Improvements */
@media (max-width: 768px) {
    .modal.active {
        align-items: flex-start;
        padding: var(--spacing-sm);
    }
    
    .modal-content {
        max-height: calc(100vh - 2 * var(--spacing-sm));
        border-radius: var(--border-radius-lg);
    }
    
    .modal-close {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
        width: 32px;
        height: 32px;
        font-size: 20px;
    }
    
    .modal-body {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .modal-image {
        padding: var(--spacing-lg);
        min-height: 300px;
        max-height: 50vh;
        order: 1;
    }
    
    .modal-image img {
        max-height: 45vh;
        width: 100%;
        height: auto;
    }
    
    .modal-info {
        padding: var(--spacing-lg);
        max-height: none;
        order: 2;
    }
    
    .modal-actions {
        margin-top: var(--spacing-lg);
        position: sticky;
        bottom: 0;
        background: white;
        padding-top: var(--spacing-lg);
        border-top: 1px solid var(--border-color);
    }
}

@media (max-width: 480px) {
    .modal.active {
        padding: var(--spacing-xs);
    }
    
    .modal-content {
        max-height: calc(100vh - 2 * var(--spacing-xs));
        border-radius: var(--border-radius);
    }
    
    .modal-image {
        padding: var(--spacing-md);
        min-height: 250px;
        max-height: 40vh;
    }
    
    .modal-image img {
        max-height: 35vh;
    }
    
    .modal-info {
        padding: var(--spacing-md);
    }
    
    .modal-actions {
        margin-top: var(--spacing-md);
        padding-top: var(--spacing-md);
    }
}

/* Responsive Utilities - Mobile Optimization */
@media (max-width: 480px) {
    :root {
        --spacing-xs: 0.25rem;
        --spacing-sm: 0.375rem;
        --spacing-md: 0.75rem;
        --spacing-lg: 1rem;
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
        --spacing-3xl: 2.5rem;
        --spacing-4xl: 3rem;
        --spacing-5xl: 4rem;
        
        /* Ensure mobile font sizes are readable */
        --font-size-xs: 1rem;
        --font-size-sm: 1.125rem;
        --font-size-base: 1.25rem;
        --font-size-lg: 1.375rem;
        --font-size-xl: 1.5rem;
    }
    
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .btn {
        padding: var(--spacing-md) var(--spacing-xl);
        font-size: var(--font-size-sm);
        width: 100%;
        justify-content: center;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-md);
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
        line-height: 1.1;
    }
    
    .artworks-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .collections-grid {
        grid-template-columns: 1fr;
    }
    

    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    section {
        padding: var(--spacing-3xl) 0;
    }
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Professional Animation Classes */
.fade-in {
    animation: fadeIn 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeIn {
    from { 
        opacity: 0; 
        transform: translateY(30px) scale(0.95); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0) scale(1); 
    }
}

.slide-up {
    animation: slideUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUp {
    from { 
        transform: translateY(40px); 
        opacity: 0; 
    }
    to { 
        transform: translateY(0); 
        opacity: 1; 
    }
}

.scale-in {
    animation: scaleIn 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes scaleIn {
    from { 
        transform: scale(0.9); 
        opacity: 0; 
    }
    to { 
        transform: scale(1); 
        opacity: 1; 
    }
}

/* Elegant hover animations for gallery items */
.artwork-card,
.collection-card,
.contact-item {
    will-change: transform;
}

/* Subtle parallax effect on scroll */
@media (prefers-reduced-motion: no-preference) {
    .hero-image::before,
    .about-image::before {
        background-attachment: fixed;
    }
}

/* Print Styles */
@media print {
    .header,
    .whatsapp-float,
    .btn,
    .modal {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
        color: black;
    }
    
    .hero,
    section {
        page-break-inside: avoid;
        padding: 1rem 0;
    }
}