/*
 * Ceramics Portfolio - Thomas DeWitt
 * Design inspired by: quietness, materiality, space, restraint
 * Color palette from the pottery: earth tones, matte blacks, soft blues
 */

/* ===== CSS Custom Properties ===== */
:root {
    /* Colors - derived from the pottery */
    --bg-warm: #f7f5f2;           /* warm off-white, like raw porcelain */
    --bg-dark: #1a1a1a;           /* near-black for lightbox */
    --text-primary: #2d2d2d;      /* soft charcoal */
    --text-muted: #6b6b6b;        /* quieter text */
    --text-active: #999;         /* active nav state */
    --accent-tan: #c4a77d;        /* from nerikomi striations */
    --accent-stone: #8b8b8b;      /* from photo backgrounds */
    --accent-blue: #6b8ba4;       /* from blue glazes */

    /* Spacing - generous, like breathing room */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 3rem;
    --space-xl: 5rem;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Transitions - subtle, not flashy */
    --transition-fast: 0.15s ease;
    --transition-medium: 0.3s ease;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-warm);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    cursor: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='32' height='32' style='font-size:24px'><text y='24'>☁️</text></svg>") 16 16, auto;
}

/* Raining cloud on clickable elements */
a, button, [role="button"], .gallery-item, .lightbox-close, .lightbox-prev, .lightbox-next {
    cursor: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='32' height='32' style='font-size:24px'><text y='24'>🌧️</text></svg>") 16 16, pointer;
}

/* Lightning cloud on click */
a:active, button:active, [role="button"]:active, .gallery-item:active, .lightbox-close:active, .lightbox-prev:active, .lightbox-next:active {
    cursor: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='32' height='32' style='font-size:24px'><text y='24'>⛈️</text></svg>") 16 16, pointer;
}

/* ===== Header ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    height: 64px;
    padding: 0 1.5rem;
    background: linear-gradient(to bottom, var(--bg-warm) 0%, var(--bg-warm) 80%, transparent 100%);
    font-size: 0.875rem;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-item {
    position: relative;
    display: flex;
    align-items: center;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    letter-spacing: 0.02em;
    transition: color var(--transition-fast);
    padding: 0.5rem 0;
    display: block;
}

.nav-link:hover {
    color: var(--text-primary);
    text-decoration: none;
}

/* Active nav link - lighter color */
.nav-link.active {
    color: var(--text-active);
}

/* Hamburger (hidden on desktop) */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 24px;
    height: 24px;
    background: none;
    border: none;
    padding: 0;
    margin-left: auto;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-warm);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-medium), visibility 0s var(--transition-medium);
}

.mobile-menu.open {
    opacity: 1;
    visibility: visible;
    transition: opacity var(--transition-medium), visibility 0s 0s;
}

.mobile-menu-content {
    padding: calc(64px + 2rem) 1.5rem 2rem;
}

.mobile-menu .mobile-nav-item {
    margin-bottom: 1.5rem;
}

.mobile-menu .mobile-nav-link {
    display: block;
    font-size: 1.25rem;
    color: var(--text-primary);
    text-decoration: none;
    margin-bottom: 0.5rem;
}

.mobile-menu .mobile-nav-link em {
    font-style: italic;
}

.mobile-menu .mobile-dropdown {
    padding-left: 1rem;
}

.mobile-menu .mobile-dropdown-link {
    display: block;
    font-size: 1rem;
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.5rem 0;
}

.mobile-menu .mobile-dropdown-link:hover {
    color: var(--text-primary);
}

.mobile-menu .mobile-nav-link.active,
.mobile-menu .mobile-dropdown-link.active {
    color: var(--text-active);
}

/* Contact line */
.contact-line {
    text-align: left;
    padding: 1rem var(--space-md);
    padding-top: calc(64px + 1rem);
    color: var(--text-muted);
    font-size: 0.9rem;
    max-width: 2000px;
    margin: 0 auto;
}

.contact-line a {
    color: var(--text-primary);
    text-decoration: underline;
    transition: color var(--transition-fast);
}

.contact-line a:hover {
    color: var(--accent-blue);
}

/* ===== Gallery Grid ===== */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    grid-auto-flow: dense;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md) var(--space-lg);
    max-width: 2000px;
    margin: 0 auto;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    background-color: #eceae7;
    cursor: pointer;
    aspect-ratio: 1;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-medium), opacity var(--transition-fast);
    opacity: 0;
}

.gallery-item img.loaded {
    opacity: 1;
}

.gallery-item:hover img {
    transform: scale(1.02);
}

/* Subtle shadow on hover */
.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.04);
    pointer-events: none;
    transition: box-shadow var(--transition-fast);
}

.gallery-item:hover::after {
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.08);
}

/* ===== Lightbox ===== */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background-color: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-medium), visibility var(--transition-medium);
}

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

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

#lightbox-img {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    opacity: 0;
    transition: opacity var(--transition-medium);
}

#lightbox-img.loaded {
    opacity: 1;
}

/* Lightbox controls */
.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    font-size: 2rem;
    padding: var(--space-sm);
    transition: color var(--transition-fast);
    z-index: 10;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    color: rgba(255, 255, 255, 0.95);
}

.lightbox-close {
    top: var(--space-sm);
    right: var(--space-sm);
    font-size: 2.5rem;
    line-height: 1;
}

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

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

.lightbox-counter {
    position: absolute;
    bottom: var(--space-md);
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
    font-variant-numeric: tabular-nums;
}

/* ===== Responsive Design ===== */

/* Large screens - more columns */
@media (min-width: 1400px) {
    .gallery {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        gap: var(--space-md);
        padding-left: var(--space-lg);
        padding-right: var(--space-lg);
    }
}

/* Medium screens */
@media (max-width: 900px) {
    .gallery {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: var(--space-sm);
        padding: calc(var(--space-lg) + var(--space-md)) var(--space-sm) var(--space-md);
    }
}

@media (max-width: 768px) {
    /* Hide desktop nav, show hamburger */
    .site-nav {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    /* Hamburger animation when menu open */
    .site-header.menu-open .hamburger span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .site-header.menu-open .hamburger span:nth-child(2) {
        opacity: 0;
    }

    .site-header.menu-open .hamburger span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
}

/* Small screens / Mobile */
@media (max-width: 600px) {
    :root {
        --space-sm: 0.75rem;
        --space-md: 1rem;
    }

    .site-header {
        padding: var(--space-sm);
    }

    .gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 4px;
        padding: calc(var(--space-lg) + var(--space-sm)) 4px var(--space-sm);
    }

    .gallery-item {
        aspect-ratio: 1;
    }

    /* Lightbox mobile adjustments */
    .lightbox-prev,
    .lightbox-next {
        font-size: 2rem;
        padding: var(--space-xs);
    }

    .lightbox-close {
        font-size: 2rem;
    }

    #lightbox-img {
        max-width: 100vw;
        max-height: 80vh;
    }

    .lightbox-counter {
        bottom: var(--space-sm);
    }
}

/* Extra small screens - single column option */
@media (max-width: 400px) {
    .gallery {
        grid-template-columns: 1fr;
        gap: var(--space-xs);
    }

    .gallery-item {
        aspect-ratio: 4/3;
    }
}

/* ===== Touch device optimizations ===== */
@media (hover: none) {
    .gallery-item:hover img {
        transform: none;
    }

    .gallery-item:active img {
        transform: scale(0.98);
    }
}

/* ===== Accessibility ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
.gallery-item:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}

.lightbox-close:focus-visible,
.lightbox-prev:focus-visible,
.lightbox-next:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.8);
    outline-offset: 2px;
}

/* ===== Loading state ===== */
.gallery-item {
    position: relative;
}

.gallery-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        #eceae7 0%,
        #e3e1de 50%,
        #eceae7 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    z-index: 1;
    transition: opacity var(--transition-medium);
}

.gallery-item.image-loaded::before {
    opacity: 0;
    pointer-events: none;
}

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

/* ===== Featured items (sets, hero pieces) ===== */
/* Aspect ratio accounts for grid gap: (2*col + gap) / col ≈ 2.05 */
.gallery-item.featured {
    grid-column: span 2;
    aspect-ratio: 2.05 / 1;
}

/* On smaller screens, featured items take full width but standard ratio */
@media (max-width: 700px) {
    .gallery-item.featured {
        grid-column: span 2;
        aspect-ratio: 4 / 3;
    }
}

@media (max-width: 400px) {
    .gallery-item.featured {
        grid-column: span 1;
        aspect-ratio: 4 / 3;
    }
}

/* ===== For Sale Badge ===== */
.for-sale-badge {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    background: rgba(0, 0, 0, 0.7);
    color: #fff;
    padding: 4px 10px;
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: 2px;
    z-index: 5;
}

/* ===== Multi-image indicator ===== */
.gallery-item[data-images]::after {
    content: '';
    position: absolute;
    top: var(--space-sm);
    left: var(--space-sm);
    width: 20px;
    height: 20px;
    background: rgba(0, 0, 0, 0.6);
    border-radius: 50%;
    z-index: 5;
}

.gallery-item[data-images]::after {
    content: attr(data-image-count);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    color: #fff;
    box-shadow: none;
}

/* ===== Lightbox caption ===== */
.lightbox-caption {
    position: absolute;
    bottom: calc(var(--space-md) + 30px);
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    text-align: center;
    max-width: 80%;
}

.lightbox-caption:empty {
    display: none;
}

/* Image counter within piece (e.g., "2 of 4") */
#lightbox-image-counter {
    margin-left: 10px;
    color: rgba(255, 255, 255, 0.4);
}

#lightbox-image-counter:empty {
    display: none;
}

/* ===== Print styles ===== */
@media print {
    .site-header,
    .lightbox {
        display: none;
    }

    .gallery {
        display: block;
    }

    .gallery-item {
        break-inside: avoid;
        page-break-inside: avoid;
        margin-bottom: 1rem;
    }
}