/* * ASSETS/CSS/STYLE.CSS
 * Global layout, components, and utility classes.
 * STRICT ENFORCEMENT: No hardcoded colors or absolute units. Use var().
 */

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

html {
    font-size: 100%; /* Respects user browser settings */
    scroll-behavior: smooth;
}

body {
    background-color: var(--color-bg-base);
    color: var(--color-text-main);
    font-family: var(--font-family-sans);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

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

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

a:hover, a:focus-visible {
    color: var(--color-accent-gold);
}

/* Focus Accessibility */
:focus-visible {
    outline: 2px solid var(--color-ui-focus);
    outline-offset: 2px;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-serif);
    line-height: 1.2;
    margin-bottom: var(--space-3);
    font-weight: 600;
}

h1 { font-size: var(--text-xxl); }
h2 { font-size: var(--text-xl); }
h3 { font-size: var(--text-lg); }

p {
    margin-bottom: var(--space-3);
}

/* ==========================================================================
   Global Layout & Structural Modules
   ========================================================================== */
.site-header {
    background-color: var(--color-bg-surface);
    box-shadow: var(--shadow-sm);
    padding: var(--space-3) var(--layout-container-padding);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: var(--layout-max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap; /* Allows natural wrapping on very narrow screens */
    gap: var(--space-3);
}

.gallery-container {
    flex: 1; /* Pushes footer to the bottom */
    width: 100%;
    max-width: var(--layout-max-width);
    margin: 0 auto;
    padding: var(--space-6) var(--layout-container-padding);
}

.site-footer {
    background-color: var(--color-bg-surface);
    border-top: 1px solid var(--color-text-muted);
    padding: var(--space-6) var(--layout-container-padding);
    text-align: center;
    margin-top: auto;
}

/* ==========================================================================
   Art Gallery Grid System (Modern Container Queries)
   ========================================================================== */
.art-grid-wrapper {
    container-type: inline-size;
    container-name: artGrid;

	
}

.art-grid {
    display: grid;
    gap: var(--space-5);
    /* Mobile-First Default: 1 column */
    grid-template-columns: 1fr; 
	
	
}

/* Container Queries dynamically adjust columns based on available width, 
   ensuring perfect scaling across all display form factors */
@container artGrid (min-width: 600px) {
    .art-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@container artGrid (min-width: 900px) {
    .art-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@container artGrid (min-width: 1300px) {
    .art-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ==========================================================================
   Art Card Component
   ========================================================================== */
.art-card {
    background-color: var(--color-bg-surface);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    display: flex;
    flex-direction: column;
}

.art-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-art);
}

.art-card__image-wrapper {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background-color: var(--color-frame-matte); /* Placeholder while loading */
}

.art-card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 500ms ease;
}

.art-card:hover .art-card__image {
    transform: scale(1.05); /* Subtle zoom effect for high-fidelity art */
}

.art-card__content {
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.art-card__title {
    font-size: var(--text-md);
    margin-bottom: var(--space-1);
}

.art-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
    margin-top: auto;
    padding-top: var(--space-3);
}

.tag {
    font-size: var(--text-xs);
    background-color: var(--color-bg-base);
    color: var(--color-text-muted);
    padding: var(--space-1) var(--space-2);
    border-radius: 12px;
    border: 1px solid var(--color-text-muted);
}

/* ==========================================================================
   UI Components (Buttons & Forms)
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2) var(--space-4);
    background-color: var(--color-bg-surface);
    color: var(--color-text-main);
    border: 2px solid var(--color-text-main);
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-family-sans);
}

.btn--primary {
    background-color: var(--color-accent-gold);
    color: var(--color-bg-surface);
    border-color: var(--color-accent-gold);
}

.btn--primary:hover {
    background-color: var(--color-accent-gold-hover);
    border-color: var(--color-accent-gold-hover);
}

.form-group {
    margin-bottom: var(--space-4);
}

.form-control {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-text-muted);
    border-radius: 4px;
    background-color: var(--color-bg-surface);
    color: var(--color-text-main);
    font-family: var(--font-family-sans);
    font-size: var(--text-base);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-accent-gold);
    box-shadow: 0 0 0 3px var(--color-ui-focus);
}