/* ==========================================================================
   Art Portfolio - Minimal & Clean Design
   ========================================================================== */

/* CSS Variables */
:root {
    --color-bg: #fafafa;
    --color-white: #ffffff;
    --color-text: #1a1a1a;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-border: #e5e5e5;
    --color-accent: #2c2c2c;

    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;

    --max-width: 1200px;
    --header-height: 80px;

    --transition: 0.3s ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-weight: 300;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

a {
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--color-text-light);
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.2;
}

.page-title {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.page-subtitle {
    font-size: 1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
}

.lead {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
}

.nav {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: -0.02em;
}

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

.nav-links a {
    font-size: 0.875rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: var(--spacing-xs) 0;
    position: relative;
}

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

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

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    transition: var(--transition);
}

/* ==========================================================================
   Main Content
   ========================================================================== */
.main {
    flex: 1;
    margin-top: var(--header-height);
    padding: var(--spacing-2xl) var(--spacing-md);
}

/* ==========================================================================
   Gallery
   ========================================================================== */
.gallery-section {
    max-width: var(--max-width);
    margin: 0 auto;
}

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

.artwork-card {
    cursor: pointer;
    transition: transform var(--transition);
}

.artwork-card:hover {
    transform: translateY(-4px);
}

.artwork-image {
    aspect-ratio: 4/5;
    overflow: hidden;
    background-color: var(--color-border);
    margin-bottom: var(--spacing-sm);
}

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

.artwork-card:hover .artwork-image img {
    transform: scale(1.02);
}

.artwork-info h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.artwork-info p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ==========================================================================
   Lightbox
   ========================================================================== */
.lightbox {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
}

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

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
    text-align: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    margin: 0 auto;
}

.lightbox-caption {
    color: var(--color-white);
    margin-top: var(--spacing-md);
}

.lightbox-caption h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.lightbox-caption p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 2rem;
    cursor: pointer;
    padding: var(--spacing-sm);
    opacity: 0.7;
    transition: opacity var(--transition);
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    opacity: 1;
}

.lightbox-close {
    top: var(--spacing-md);
    right: var(--spacing-md);
    font-size: 2.5rem;
}

.lightbox-prev {
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    font-size: 3rem;
}

.lightbox-next {
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    font-size: 3rem;
}

/* ==========================================================================
   About Page
   ========================================================================== */
.about-section {
    max-width: 900px;
    margin: 0 auto;
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.about-image {
    aspect-ratio: 3/4;
    overflow: hidden;
    background-color: var(--color-border);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-content p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
}

.about-content h2 {
    font-size: 1.5rem;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

blockquote {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-style: italic;
    color: var(--color-text-light);
    border-left: 2px solid var(--color-border);
    padding-left: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

blockquote cite {
    display: block;
    font-size: 0.875rem;
    font-style: normal;
    margin-top: var(--spacing-sm);
    color: var(--color-text-muted);
}

/* ==========================================================================
   Contact Page
   ========================================================================== */
.contact-section {
    max-width: 900px;
    margin: 0 auto;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.contact-details {
    margin-top: var(--spacing-xl);
}

.contact-item {
    margin-bottom: var(--spacing-lg);
}

.contact-item h3 {
    font-size: 0.875rem;
    font-family: var(--font-sans);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.contact-item a,
.contact-item p {
    font-size: 1rem;
    color: var(--color-text);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    font-size: 0.875rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 2px;
}

.social-links a:hover {
    border-color: var(--color-text);
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--color-text-light);
}

.form-group input,
.form-group textarea {
    font-family: var(--font-sans);
    font-size: 1rem;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    background-color: var(--color-white);
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-text);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: var(--color-text);
}

.form-note {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-sm);
}

.form-note a {
    color: var(--color-text-light);
    text-decoration: underline;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
    border-top: 1px solid var(--color-border);
    background-color: var(--color-white);
}

.footer p {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: var(--spacing-xl);
        background-color: var(--color-white);
        opacity: 0;
        visibility: hidden;
        transition: opacity var(--transition), visibility var(--transition);
    }

    .nav-links.active {
        opacity: 1;
        visibility: visible;
    }

    .nav-links a {
        font-size: 1.25rem;
    }

    /* Mobile menu animation */
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

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

    .about-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .about-image {
        max-width: 300px;
    }

    .contact-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .lightbox-prev,
    .lightbox-next {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .main {
        padding: var(--spacing-xl) var(--spacing-sm);
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }
}