/* ─── Self-Hosted Fonts ───────────────────────────────────────────────────── */

@font-face {
    font-family: 'Pinyon Script';
    font-style: normal;
    font-weight: 400;
    font-display: block;
    src: url('/assets/fonts/pinyon-script-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'Lora';
    font-style: normal;
    font-weight: 400 700;
    font-display: block;
    src: url('/assets/fonts/lora-normal-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'Lora';
    font-style: italic;
    font-weight: 400 700;
    font-display: block;
    src: url('/assets/fonts/lora-italic-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'Courier Prime';
    font-style: normal;
    font-weight: 400;
    font-display: block;
    src: url('/assets/fonts/courier-prime-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ─── Tokens ──────────────────────────────────────────────────────────────── */

:root {
    --black:        #000000;
    --parchment:    #E8DFC0;
    --amber:        #C89B3C;
    --amber-dim:    rgba(200, 155, 60, 0.28);
    --amber-glow:   rgba(200, 155, 60, 0.14);
    --amber-border: rgba(200, 155, 60, 0.35);
    --amber-hover:  rgba(200, 155, 60, 0.40);

    /* Cold star palette — blue-white for star-field depth; not used in UI */
    --star-cold:    rgba(200, 220, 255, 1);
    --nebula-deep:  rgba(40, 55, 160, 1);
    --nebula-violet: rgba(80, 30, 130, 1);

    /* Vibrant, low-resource watercolor nebula palette */
    --nebula-magenta: rgba(210, 45, 140, 0.28);
    --nebula-cyan:    rgba(0, 180, 210, 0.25);
    --nebula-gold:    rgba(215, 145, 45, 0.22);

    --font-display: 'Pinyon Script', 'Lora', cursive;
    --font-body:    'Lora', Georgia, serif;
    --font-mono:    'Courier Prime', 'Courier New', monospace;

    --max-w: 1280px;
    --gutter: clamp(1.5rem, 5vw, 4rem);
}

/* ─── Animations ──────────────────────────────────────────────────────────── */

/* filter: drop-shadow is GPU-composited; text-shadow forces a repaint */
@keyframes celestial-breathe {
    0%, 100% {
        filter: drop-shadow(0 0 8px rgba(200, 155, 60, 0.45))
                drop-shadow(0 0 22px rgba(200, 155, 60, 0.15));
        opacity: 1;
    }
    50% {
        filter: drop-shadow(0 0 14px rgba(200, 155, 60, 0.75))
                drop-shadow(0 0 40px rgba(200, 155, 60, 0.28))
                drop-shadow(0 0 70px rgba(200, 155, 60, 0.08));
        opacity: 0.90;
    }
}

/* opacity-only — GPU-composited, zero repaint cost */
@keyframes cosmos-star-twinkle {
    0%, 100% { opacity: 0.12; }
    50%       { opacity: 0.88; }
}

/* artwork glow: animate opacity on a pseudo-element, NOT box-shadow */
@keyframes artwork-glow-fade {
    0%, 100% { opacity: 0.35; }
    50%       { opacity: 0.80; }
}

@keyframes artwork-hover-fade {
    0%, 100% { opacity: 0.75; }
    50%       { opacity: 1;    }
}

@keyframes nebula-drift {
    0%, 100% {
        opacity: 0.38;
        transform: translate3d(0, 0, 0) scale(1);
    }
    50% {
        opacity: 0.52;
        transform: translate3d(1.5%, -1%, 0) scale(1.04);
    }
}

/* ─── Reset ───────────────────────────────────────────────────────────────── */

html {
    background: #000;
    font-size: 16px;
    scroll-behavior: smooth;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    background: transparent;
    color: var(--parchment);
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ─── Deep-space void ────────────────────────────────────────────────────── */
/* Fixed atmospheric layer: nebula wash + mixed-temperature star field        */

body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
    background-color: transparent;
    background-image:
        /* ── Nebula atmosphere ── */
        radial-gradient(ellipse 65% 45% at 25% 35%, rgba(40, 55, 160, 0.07) 0%, transparent 70%),
        radial-gradient(ellipse 55% 65% at 75% 62%, rgba(80, 30, 130, 0.05) 0%, transparent 70%),
        radial-gradient(ellipse 40% 30% at 50% 85%, rgba(30, 60, 150, 0.04) 0%, transparent 60%),

        /* ── Bright anchor stars (3 px) ── */
        radial-gradient(3px 3px at 22%  7%, rgba(210, 225, 255, 0.88) 0%, transparent 100%),
        radial-gradient(3px 3px at 73% 14%, rgba(215, 228, 255, 0.82) 0%, transparent 100%),
        radial-gradient(3px 3px at 92% 33%, rgba(208, 222, 255, 0.78) 0%, transparent 100%),
        radial-gradient(3px 3px at  8% 88%, rgba(212, 226, 255, 0.72) 0%, transparent 100%),
        radial-gradient(3px 3px at 48% 51%, rgba(200, 155,  60, 0.68) 0%, transparent 100%),

        /* ── Cold/white stars (2 px) ── */
        radial-gradient(2px 2px at  5%  8%, rgba(200, 220, 255, 0.65) 0%, transparent 100%),
        radial-gradient(2px 2px at 32% 15%, rgba(205, 222, 255, 0.58) 0%, transparent 100%),
        radial-gradient(2px 2px at 61% 11%, rgba(198, 218, 255, 0.62) 0%, transparent 100%),
        radial-gradient(2px 2px at 25% 42%, rgba(202, 220, 255, 0.54) 0%, transparent 100%),
        radial-gradient(2px 2px at 58% 28%, rgba(200, 218, 255, 0.50) 0%, transparent 100%),
        radial-gradient(2px 2px at 87% 31%, rgba(204, 222, 255, 0.57) 0%, transparent 100%),
        radial-gradient(2px 2px at 19% 68%, rgba(200, 220, 255, 0.49) 0%, transparent 100%),
        radial-gradient(2px 2px at 66% 72%, rgba(202, 218, 255, 0.48) 0%, transparent 100%),
        radial-gradient(2px 2px at 28% 91%, rgba(198, 216, 255, 0.52) 0%, transparent 100%),

        /* ── Cold/white stars (1 px) ── */
        radial-gradient(1px 1px at 18%  3%, rgba(200, 220, 255, 0.46) 0%, transparent 100%),
        radial-gradient(1px 1px at 47%  4%, rgba(205, 222, 255, 0.42) 0%, transparent 100%),
        radial-gradient(1px 1px at 79%  7%, rgba(200, 218, 255, 0.52) 0%, transparent 100%),
        radial-gradient(1px 1px at 93% 18%, rgba(202, 220, 255, 0.44) 0%, transparent 100%),
        radial-gradient(1px 1px at 11% 25%, rgba(200, 216, 255, 0.40) 0%, transparent 100%),
        radial-gradient(1px 1px at 41% 33%, rgba(205, 222, 255, 0.46) 0%, transparent 100%),
        radial-gradient(1px 1px at 72% 37%, rgba(200, 220, 255, 0.43) 0%, transparent 100%),
        radial-gradient(1px 1px at  6% 52%, rgba(202, 218, 255, 0.45) 0%, transparent 100%),
        radial-gradient(1px 1px at 35% 75%, rgba(200, 216, 255, 0.41) 0%, transparent 100%),
        radial-gradient(1px 1px at 52% 63%, rgba(205, 220, 255, 0.53) 0%, transparent 100%),
        radial-gradient(1px 1px at 81% 58%, rgba(200, 218, 255, 0.46) 0%, transparent 100%),
        radial-gradient(1px 1px at 95% 67%, rgba(202, 220, 255, 0.40) 0%, transparent 100%),
        radial-gradient(1px 1px at 13% 84%, rgba(200, 216, 255, 0.45) 0%, transparent 100%),
        radial-gradient(1px 1px at 45% 87%, rgba(205, 222, 255, 0.44) 0%, transparent 100%),
        radial-gradient(1px 1px at 63% 93%, rgba(200, 218, 255, 0.49) 0%, transparent 100%),
        radial-gradient(1px 1px at 78% 86%, rgba(202, 220, 255, 0.43) 0%, transparent 100%),

        /* ── Amber stars (2 px) ── */
        radial-gradient(2px 2px at  7% 12%, rgba(200, 155, 60, 0.45) 0%, transparent 100%),
        radial-gradient(2px 2px at 23% 31%, rgba(200, 155, 60, 0.38) 0%, transparent 100%),
        radial-gradient(2px 2px at 84%  9%, rgba(200, 155, 60, 0.42) 0%, transparent 100%),
        radial-gradient(2px 2px at 14% 73%, rgba(200, 155, 60, 0.36) 0%, transparent 100%),
        radial-gradient(2px 2px at 29% 91%, rgba(200, 155, 60, 0.34) 0%, transparent 100%),
        radial-gradient(2px 2px at 88% 79%, rgba(200, 155, 60, 0.37) 0%, transparent 100%),
        radial-gradient(2px 2px at 49% 72%, rgba(200, 155, 60, 0.32) 0%, transparent 100%),

        /* ── Amber stars (1 px) ── */
        radial-gradient(1px 1px at 51%  6%, rgba(200, 155, 60, 0.48) 0%, transparent 100%),
        radial-gradient(1px 1px at 68% 22%, rgba(200, 155, 60, 0.35) 0%, transparent 100%),
        radial-gradient(1px 1px at 91% 44%, rgba(200, 155, 60, 0.30) 0%, transparent 100%),
        radial-gradient(1px 1px at 37% 58%, rgba(200, 155, 60, 0.38) 0%, transparent 100%),
        radial-gradient(1px 1px at 76% 67%, rgba(200, 155, 60, 0.40) 0%, transparent 100%),
        radial-gradient(1px 1px at 55% 82%, rgba(200, 155, 60, 0.34) 0%, transparent 100%),
        radial-gradient(1px 1px at 62% 47%, rgba(200, 155, 60, 0.28) 0%, transparent 100%),
        radial-gradient(1px 1px at  3% 55%, rgba(200, 155, 60, 0.40) 0%, transparent 100%),
        radial-gradient(1px 1px at 44% 37%, rgba(200, 155, 60, 0.26) 0%, transparent 100%),
        radial-gradient(1px 1px at 57% 19%, rgba(200, 155, 60, 0.36) 0%, transparent 100%),
        radial-gradient(1px 1px at 16% 61%, rgba(200, 155, 60, 0.29) 0%, transparent 100%),
        radial-gradient(1px 1px at 71% 83%, rgba(200, 155, 60, 0.33) 0%, transparent 100%),

        /* ── Measurement rings — amber + cold-white alternating ── */
        repeating-radial-gradient(
            circle at 50% 50%,
            transparent 0px,
            transparent 179px,
            rgba(200, 155, 60, 0.08) 180px,
            rgba(200, 155, 60, 0.08) 181px
        ),
        repeating-radial-gradient(
            circle at 50% 50%,
            transparent 0px,
            transparent 269px,
            rgba(200, 220, 255, 0.04) 270px,
            rgba(200, 220, 255, 0.04) 271px
        );
}

#celestial-background {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -3;
    overflow: hidden;
    background-color: var(--black);
}

.nebula-wash {
    position: absolute;
    inset: -20%;
    pointer-events: none;
    filter: blur(80px);
    mix-blend-mode: screen;
    will-change: transform, opacity;
}

.nebula-wash--1 {
    background: radial-gradient(circle at 30% 25%, var(--nebula-cyan) 0%, transparent 60%);
    animation: nebula-drift-1 55s ease-in-out infinite alternate;
}

.nebula-wash--2 {
    background: radial-gradient(circle at 75% 65%, var(--nebula-magenta) 0%, transparent 60%);
    animation: nebula-drift-2 65s ease-in-out infinite alternate;
}

.nebula-wash--3 {
    background: radial-gradient(circle at 45% 85%, var(--nebula-gold) 0%, transparent 55%);
    animation: nebula-drift-3 75s ease-in-out infinite alternate;
}

@keyframes nebula-drift-1 {
    0% { transform: translate3d(0, 0, 0) scale(1); opacity: 0.35; }
    100% { transform: translate3d(5%, 3%, 0) scale(1.15); opacity: 0.75; }
}

@keyframes nebula-drift-2 {
    0% { transform: translate3d(0, 0, 0) scale(1.1); opacity: 0.45; }
    100% { transform: translate3d(-4%, 5%, 0) scale(0.95); opacity: 0.85; }
}

@keyframes nebula-drift-3 {
    0% { transform: translate3d(0, 0, 0) scale(0.95); opacity: 0.25; }
    100% { transform: translate3d(3%, -5%, 0) scale(1.1); opacity: 0.65; }
}

.astrolabe-grid {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 85vmax;
    height: 85vmax;
    max-width: 950px;
    max-height: 950px;
    pointer-events: none;
    z-index: -2;
    opacity: 0.16;
    animation: astrolabe-rotation 300s linear infinite;
    will-change: transform;
}

@keyframes astrolabe-rotation {
    from { transform: translate3d(-50%, -50%, 0) rotate(0deg); }
    to { transform: translate3d(-50%, -50%, 0) rotate(360deg); }
}

/* Reduced-motion overrides for celestial elements */
.low-power .nebula-wash,
.low-power .astrolabe-grid {
    animation: none !important;
}

.low-power .nebula-wash--1 { opacity: 0.55; }
.low-power .nebula-wash--2 { opacity: 0.65; }
.low-power .nebula-wash--3 { opacity: 0.45; }
.low-power .astrolabe-grid { opacity: 0.12; transform: translate3d(-50%, -50%, 0) rotate(15deg); }

img { display: block; max-width: 100%; height: auto; }
a   { color: inherit; text-decoration: none; }

.skip-link {
    position: absolute;
    left: 1rem;
    top: -3rem;
    padding: 0.7rem 1rem;
    background: rgba(0, 0, 0, 0.96);
    border: 1px solid var(--amber-border);
    color: var(--amber);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    z-index: 300;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 1rem;
}

:focus-visible {
    outline: 2px solid var(--amber);
    outline-offset: 3px;
}

/* ─── Cosmos JS layer ─────────────────────────────────────────────────────── */

#cosmos-stars {
    position: fixed;
    top: 50%;
    left: 50%;
    width: 150vmax;
    height: 150vmax;
    transform: translate3d(-50%, -50%, 0);
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
    contain: layout paint;
    animation: star-rotation 60s linear infinite;
    will-change: transform;
}

@keyframes star-rotation {
    from { transform: translate3d(-50%, -50%, 0) rotate(0deg); }
    to { transform: translate3d(-50%, -50%, 0) rotate(360deg); }
}

.low-power #cosmos-stars {
    animation: none !important;
    transform: translate3d(-50%, -50%, 0) rotate(0deg) !important;
}

.cosmos-star {
    position: absolute;
    border-radius: 50%;
    /* static box-shadow never triggers repaint — only the opacity animates */
    animation: cosmos-star-twinkle ease-in-out infinite;
}

.cosmos-star--amber {
    background: rgba(200, 155, 60, 1);
    box-shadow: 0 0 3px 1px rgba(200, 155, 60, 0.35);
}

.cosmos-star--cold {
    background: rgba(205, 222, 255, 1);
    box-shadow: 0 0 3px 1px rgba(200, 218, 255, 0.35);
}

/* ─── Site Header ─────────────────────────────────────────────────────────── */

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 2.5rem var(--gutter) 1.5rem;
    position: sticky;
    top: 0;
    background: rgba(0, 0, 0, 0.82);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 100;
    overflow: visible;
}

/* Tick-mark measurement rule */
.site-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 9px;
    background-image:
        linear-gradient(to bottom, var(--amber-border) 0, var(--amber-border) 1px, transparent 1px),
        repeating-linear-gradient(
            to right,
            rgba(200, 155, 60, 0.40) 0,
            rgba(200, 155, 60, 0.40) 1px,
            transparent 1px,
            transparent 20px
        );
    pointer-events: none;
}

/* site title with cursive adjustments */
.site-title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 4.8vw, 3.5rem);
    font-weight: 400;
    letter-spacing: 0.01em;
    color: var(--amber);
    transition: opacity 0.2s;
    animation: celestial-breathe 14s ease-in-out infinite;
    text-transform: none;
    font-variant-caps: normal;
    white-space: nowrap;
    flex: 0 0 auto;
}
.site-title:hover { opacity: 0.75; }

.low-power .site-title {
    animation: none;
    filter: none;
}

.site-nav-shell {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex: 1 1 auto;
    gap: 0.9rem;
    min-width: 0;
}

.site-nav {
    display: flex;
    justify-content: flex-end;
    flex: 1 1 auto;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    min-width: 0;
    max-width: 100%;
    overflow: hidden;
}

.site-nav-list {
    list-style: none;
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
    gap: 0;
    margin: 0;
    padding: 0;
}

.site-nav-list.is-measuring {
    flex-wrap: wrap;
}

.site-nav-item {
    display: inline-flex;
    align-items: center;
}

.site-nav-item + .site-nav-item::before {
    content: '·';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.3rem;
    opacity: 0.3;
}

.site-nav-item.is-first-visible::before {
    display: none;
}

.site-nav-item.is-overflow {
    display: none;
}

.site-nav a,
.site-nav-overflow a {
    display: inline-flex;
    align-items: center;
    min-height: 2.75rem;
    padding: 0.15rem 0;
    opacity: 0.55;
    transition: opacity 0.2s, color 0.2s;
}
.site-nav a:hover,
.site-nav a.active,
.site-nav-overflow a:hover,
.site-nav-overflow a.active {
    opacity: 1;
    color: var(--amber);
}

.site-nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 2.9rem;
    height: 2.9rem;
    border: 1px solid rgba(200, 155, 60, 0.24);
    background: rgba(200, 155, 60, 0.06);
    color: var(--parchment);
    transition: background 0.2s, border-color 0.2s, color 0.2s, opacity 0.2s;
}

.site-nav-toggle:hover,
.site-nav-toggle.is-open {
    background: rgba(200, 155, 60, 0.12);
    border-color: rgba(200, 155, 60, 0.45);
    color: var(--amber);
}

.site-nav-toggle-lines {
    display: grid;
    gap: 0.28rem;
}

.site-nav-toggle-lines span {
    display: block;
    width: 1.1rem;
    height: 1px;
    background: currentColor;
    transition: transform 0.2s, opacity 0.2s;
}

.site-nav-toggle.is-open .site-nav-toggle-lines span:nth-child(1) {
    transform: translateY(0.39rem) rotate(45deg);
}

.site-nav-toggle.is-open .site-nav-toggle-lines span:nth-child(2) {
    opacity: 0;
}

.site-nav-toggle.is-open .site-nav-toggle-lines span:nth-child(3) {
    transform: translateY(-0.39rem) rotate(-45deg);
}

.site-nav-overflow {
    position: absolute;
    top: calc(100% + 0.8rem);
    right: 0;
    min-width: min(19rem, calc(100vw - (var(--gutter) * 2)));
    padding: 0.8rem 1rem;
    border: 1px solid rgba(200, 155, 60, 0.2);
    background:
        linear-gradient(180deg, rgba(9, 14, 28, 0.96), rgba(0, 0, 0, 0.96)),
        radial-gradient(circle at top, rgba(189, 145, 47, 0.12), transparent 58%);
    box-shadow: 0 16px 50px rgba(0, 0, 0, 0.36);
}

.site-nav-overflow-list {
    list-style: none;
    display: grid;
    gap: 0.15rem;
    margin: 0;
    padding: 0;
}

.site-nav-overflow-item {
    display: flex;
}

.site-nav-overflow a {
    width: 100%;
    justify-content: space-between;
    padding: 0.45rem 0;
}

/* ─── Main / Footer ───────────────────────────────────────────────────────── */

main { flex: 1; }

.site-footer {
    padding: 2rem var(--gutter);
    border-top: 1px solid var(--amber-border);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    opacity: 0.3;
    text-align: center;
}

/* ─── Gallery Page ────────────────────────────────────────────────────────── */

.gallery-page {
    padding: 4rem var(--gutter) 6rem;
    max-width: var(--max-w);
    margin: 0 auto;
}

.gallery-empty {
    font-family: var(--font-body);
    font-style: italic;
    opacity: 0.4;
    padding: 4rem 0;
    text-align: center;
}

/* Section header */
.gallery-section { margin-bottom: 5rem; }

.gallery-section-header {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 1.2rem;
    margin-bottom: 2.4rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid var(--amber-border);
}

/* Node marker — celestial chart observation point */
.gallery-section-header::before {
    content: '';
    display: block;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    border: 1px solid var(--amber-border);
    flex-shrink: 0;
    align-self: center;
}

.vol-label {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.22em;
    color: var(--amber);
    opacity: 0.7;
    white-space: nowrap;
}

.category-name {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 2.8vw, 2rem);
    font-weight: 400;
    letter-spacing: 0.02em;
    color: var(--parchment);
    flex: 1;
    font-variant-caps: normal;
    text-transform: none;
}

.section-rule {
    flex: 1;
    height: 1px;
    background: var(--amber-border);
    max-width: 8rem;
}

/* Artwork grid — irregular layout */
.artwork-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 2rem 1.6rem;
    align-items: start;
    counter-reset: artwork-counter;
}

/* Size variants */
.artwork-card.size-large  { grid-column: span 6; }
.artwork-card.size-medium { grid-column: span 4; }
.artwork-card.size-wide   { grid-column: span 8; }
.artwork-card.size-small  { grid-column: span 3; }

@media (max-width: 900px) {
    .artwork-card.size-large,
    .artwork-card.size-wide  { grid-column: span 12; }
    .artwork-card.size-medium { grid-column: span 6; }
    .artwork-card.size-small  { grid-column: span 6; }
}

@media (max-width: 540px) {
    .artwork-grid { gap: 1.4rem 1rem; }
    .artwork-card { grid-column: span 12 !important; }
}

/* Card */
.artwork-card {
    display: block;
    cursor: pointer;
    position: relative;
    counter-increment: artwork-counter;
}

/* Catalog coordinate label — Roman numeral in top-left corner */
.artwork-card::before {
    content: counter(artwork-counter, upper-roman);
    position: absolute;
    top: 0.45rem;
    left: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.58rem;
    letter-spacing: 0.14em;
    color: var(--amber);
    opacity: 0.4;
    z-index: 5;
    pointer-events: none;
    line-height: 1;
}

.artwork-thumb-wrap {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background: #0a0a0a;
}

.artwork-thumb-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                filter 0.5s ease;
    filter: brightness(0.82) saturate(0.9);
}

/* Circular halo — light emanates from within the object, not cast upon it */
.artwork-glow {
    position: absolute;
    inset: 0;
    background: radial-gradient(
        circle at 50% 50%,
        var(--amber-dim) 0%,
        transparent 62%
    );
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.artwork-card:hover .artwork-thumb-wrap img {
    transform: scale(1.03);
    filter: brightness(1) saturate(1);
}
/* Glow lives on ::after so only opacity is animated, never box-shadow */
.artwork-card::after {
    content: '';
    position: absolute;
    inset: -30%;
    background: radial-gradient(circle at 50% 38%, rgba(200,155,60,0.28) 0%, transparent 62%);
    border-radius: 50%;
    pointer-events: none;
    z-index: -1;
    opacity: 0.35;
    animation: artwork-glow-fade 12s ease-in-out infinite;
}

.artwork-card:hover::after {
    animation: artwork-hover-fade 8s ease-in-out infinite;
}
.artwork-card:hover .artwork-glow {
    opacity: 1;
}

.low-power .artwork-card::after,
.low-power .collection-card::after {
    animation: none;
    opacity: 0.18;
}

.low-power .artwork-glow,
.low-power .work-piece-glow {
    opacity: 0.28;
}

.artwork-meta {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    flex-wrap: wrap;
    margin-top: 0.7rem;
    gap: 0.6rem;
    max-width: 28ch;
}

.artwork-title {
    font-family: var(--font-body);
    font-size: 1rem;
    letter-spacing: 0.01em;
    line-height: 1.55;
    opacity: 0.96;
    flex: 1;
    min-width: 0;
}

.artwork-year {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    color: var(--amber);
    opacity: 0.7;
    white-space: nowrap;
}

/* ─── Work Detail ─────────────────────────────────────────────────────────── */

.work-page {
    padding: 3rem var(--gutter) 6rem;
    max-width: var(--max-w);
    margin: 0 auto;
}

.work-back {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    color: var(--amber);
    opacity: 0.6;
    margin-bottom: 3rem;
    transition: opacity 0.2s;
}
.work-back:hover { opacity: 1; }

.work-detail { display: grid; gap: 3rem; }

.work-piece-wrap {
    position: relative;
    width: 100%;
    background: #060606;
}

/* Primary measurement ring */
.work-piece-wrap::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 112%;
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    border: 1px dashed rgba(200, 155, 60, 0.22);
    pointer-events: none;
    z-index: 2;
}

/* Outer cold-white ring */
.work-piece-wrap::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 135%;
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    border: 1px dashed rgba(200, 220, 255, 0.07);
    pointer-events: none;
    z-index: 2;
}

.work-image {
    width: 100%;
    max-height: 80vh;
    object-fit: contain;
    display: block;
    position: relative;
    z-index: 1;
}

.work-embed {
    position: relative;
    z-index: 1;
    width: 100%;
    aspect-ratio: 16 / 9;
}
.work-embed iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

.work-piece-fallback {
    position: relative;
    z-index: 1;
    min-height: min(60vh, 34rem);
    display: grid;
    place-items: center;
    gap: 0.8rem;
    padding: 2rem;
    text-align: center;
    border: 1px solid rgba(200, 155, 60, 0.18);
    background: linear-gradient(180deg, rgba(6, 9, 18, 0.96), rgba(0, 0, 0, 0.9));
}

.work-piece-fallback-title {
    font-family: var(--font-mono);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--amber);
}

.work-piece-fallback p {
    max-width: 40rem;
    margin: 0;
    opacity: 0.82;
}

/* The artwork radiates into deep space — warm centre, cold void beyond */
.work-piece-glow {
    position: absolute;
    inset: -60px;
    background: radial-gradient(
        circle at 50% 50%,
        rgba(200, 155, 60, 0.32) 0%,
        rgba(200, 155, 60, 0.10) 30%,
        rgba(40, 55, 160, 0.06) 55%,
        transparent 72%
    );
    pointer-events: none;
    z-index: 0;
}

.work-info { padding: 0 0.2rem; }

.work-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 400;
    letter-spacing: 0.02em;
    line-height: 1.2;
    color: var(--parchment);
    margin-bottom: 0.8rem;
    font-variant-caps: normal;
    text-transform: none;
}

.work-meta-line {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.6rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    margin-bottom: 1.8rem;
    opacity: 0.65;
}
.work-year   { color: var(--amber); }
.work-cat-sep { opacity: 0.4; }
.work-category { opacity: 0.7; }

.work-description {
    font-family: var(--font-body);
    font-size: 1.05rem;
    line-height: 1.95;
    opacity: 0.92;
    max-width: 56ch;
    text-wrap: pretty;
}

/* ─── About / Bio Page ────────────────────────────────────────────────────── */

.about-page,
.page-shell {
    padding: 4rem var(--gutter) 6rem;
    max-width: 720px;
    margin: 0 auto;
}

.about-content,
.page-content { display: flex; flex-direction: column; gap: 3rem; }

.page-header { margin-bottom: 2rem; }

.page-title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 5.5vw, 3.5rem);
    font-weight: 400;
    letter-spacing: 0.02em;
    color: var(--amber);
    text-wrap: balance;
    font-variant-caps: normal;
    text-transform: none;
}

.bio-section,
.page-section {}

.bio-heading,
.page-section-heading {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 2.5vw, 1.8rem);
    font-weight: 400;
    letter-spacing: 0.02em;
    text-transform: none;
    color: var(--amber);
    margin-bottom: 1.1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--amber-border);
    font-variant-caps: normal;
}

.bio-text,
.page-section-body {
    font-family: var(--font-body);
    font-size: 1.05rem;
    line-height: 1.95;
    opacity: 0.95;
    max-width: 62ch;
    text-wrap: pretty;
}

.bio-placeholder,
.page-placeholder { font-style: italic; opacity: 0.42; }

/* Contact section — visually continuous with bio */
.contact-section {
    border-top: 1px solid var(--amber-border);
    padding-top: 2.5rem;
}

.contact-sent {
    font-family: var(--font-body);
    font-style: italic;
    color: var(--amber);
    opacity: 0.8;
    margin-top: 1rem;
}

.contact-error {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: #c87c3c;
    margin-bottom: 1rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.4rem;
    margin-top: 1.5rem;
    max-width: 40rem;
}

.field-row {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.field-row label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    opacity: 0.55;
}

.contact-form input,
.contact-form textarea {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--amber-border);
    color: var(--parchment);
    font-family: var(--font-body);
    font-size: 1rem;
    padding: 0.75rem 0.85rem;
    outline: none;
    transition: border-color 0.2s, background-color 0.2s;
    width: 100%;
    resize: vertical;
    min-height: 3rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--amber);
    background-color: rgba(255, 255, 255, 0.04);
}

.contact-submit {
    align-self: flex-start;
    background: transparent;
    border: 1px solid var(--amber-border);
    color: var(--amber);
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.2em;
    padding: 0.7rem 2rem;
    text-transform: uppercase;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.contact-submit:hover {
    background: var(--amber-glow);
    border-color: var(--amber);
    color: var(--parchment);
}

/* ─── Exhibits strip ─────────────────────────────────────────────────────── */

.exhibits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.6rem;
}

.exhibit-card {
    display: block;
    cursor: pointer;
}

.exhibit-card .artwork-thumb-wrap {
    aspect-ratio: 1 / 1;
}

/* ─── Collection pages (categories list, category detail, exhibit detail) ── */

.collection-page,
.collection-detail-page {
    padding: 4rem var(--gutter) 6rem;
    max-width: var(--max-w);
    margin: 0 auto;
}

.collection-header { margin-bottom: 3rem; }

.collection-title {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3.5vw, 2.5rem);
    font-weight: 400;
    letter-spacing: 0.02em;
    color: var(--parchment);
    font-variant-caps: normal;
    text-transform: none;
}

.collection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 2.4rem;
}

@media (max-width: 900px) {
    .site-header {
        align-items: center;
        gap: 1rem;
        padding-top: 1.75rem;
        padding-bottom: 1.1rem;
    }

    .site-nav-shell {
        width: auto;
    }

    .js-enhanced .site-nav-toggle {
        display: inline-flex;
    }

    .js-enhanced .site-nav {
        display: none;
    }

    .gallery-page,
    .collection-page,
    .collection-detail-page,
    .about-page,
    .page-shell {
        padding-top: 3rem;
        padding-bottom: 5rem;
    }

    .gallery-section {
        margin-bottom: 4rem;
    }

    .gallery-section-header {
        gap: 0.8rem 1rem;
        margin-bottom: 1.8rem;
    }

    .section-rule {
        max-width: none;
        min-width: 5rem;
    }

    .work-page {
        padding-top: 2.5rem;
        padding-bottom: 5rem;
    }

    .work-detail {
        gap: 2.25rem;
    }

    .work-back {
        margin-bottom: 2.25rem;
    }

    .page-content,
    .about-content {
        gap: 2.4rem;
    }

    .collection-grid {
        grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
        gap: 1.8rem;
    }

    .exhibits-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 1.2rem;
    }
}

.collection-card {
    display: block;
    cursor: pointer;
    position: relative;
}

.collection-thumb-wrap {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background: #0a0a0a;
}
.collection-thumb-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94), filter 0.5s ease;
    filter: brightness(0.82) saturate(0.9);
}
.collection-card:hover .collection-thumb-wrap img {
    transform: scale(1.03);
    filter: brightness(1) saturate(1);
}
.collection-card::after {
    content: '';
    position: absolute;
    inset: -30%;
    background: radial-gradient(circle at 50% 38%, rgba(200,155,60,0.28) 0%, transparent 62%);
    border-radius: 50%;
    pointer-events: none;
    z-index: -1;
    opacity: 0.35;
    animation: artwork-glow-fade 12s ease-in-out infinite;
}

.collection-card:hover::after {
    animation: artwork-hover-fade 8s ease-in-out infinite;
}
.collection-card:hover .artwork-glow { opacity: 1; }

.collection-thumb-placeholder {
    width: 100%;
    height: 100%;
    background: #111;
    border: 1px solid var(--amber-border);
}

.collection-card-meta {
    margin-top: 0.7rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}
.collection-card-name {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.5;
    opacity: 0.94;
}
.collection-card-desc {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    line-height: 1.6;
    letter-spacing: 0.06em;
    opacity: 0.45;
}

/* Collection detail (category / exhibit page) */
.collection-detail-header {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2.5rem;
    align-items: start;
    margin: 2rem 0 3rem;
}
@media (max-width: 640px) {
    .site-header {
        align-items: center;
        gap: 1rem;
    }

    .site-nav-shell {
        width: auto;
    }

    .gallery-page,
    .collection-page,
    .collection-detail-page,
    .work-page,
    .about-page,
    .page-shell {
        padding-top: 2.25rem;
        padding-bottom: 4rem;
    }

    .gallery-section-header {
        align-items: center;
        margin-bottom: 1.35rem;
    }

    .section-rule {
        display: none;
    }

    .category-name,
    .collection-title,
    .collection-detail-title,
    .page-title,
    .work-title {
        letter-spacing: 0.04em;
    }

    .work-detail {
        gap: 1.8rem;
    }

    .work-description,
    .page-section-body,
    .collection-detail-desc {
        font-size: 1rem;
        line-height: 1.8;
    }

    .contact-form {
        gap: 1rem;
    }

    .exhibits-grid,
    .collection-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 1rem;
    }

    .collection-card-meta,
    .artwork-meta {
        gap: 0.25rem 0.5rem;
    }

    .collection-detail-header { grid-template-columns: 1fr; }

    .collection-detail-thumb {
        width: min(100%, 18rem);
    }

    .work-piece-wrap::before {
        width: 104%;
    }

    .work-piece-wrap::after {
        width: 118%;
    }
}

.collection-detail-thumb {
    position: relative;
    width: clamp(160px, 25vw, 300px);
}
.collection-detail-thumb img {
    width: 100%;
    height: auto;
    display: block;
}

.collection-detail-title {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3.5vw, 2.5rem);
    font-weight: 400;
    letter-spacing: 0.02em;
    margin-bottom: 1rem;
    font-variant-caps: normal;
    text-transform: none;
}
.collection-detail-desc {
    font-family: var(--font-body);
    font-size: 1.05rem;
    line-height: 1.9;
    opacity: 0.9;
    max-width: 56ch;
    text-wrap: pretty;
}

.collection-artworks {
    margin-top: 3rem;
}

/* category link on work detail */
.work-category {
    opacity: 0.7;
    transition: opacity 0.2s, color 0.2s;
}
.work-category:hover {
    opacity: 1;
    color: var(--amber);
}

/* See more button */
.see-more-btn {
    display: none;
    margin: 2.5rem auto 0;
    background: transparent;
    border: 1px solid var(--amber-border);
    color: var(--amber);
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.2em;
    padding: 0.7rem 2.5rem;
    text-transform: uppercase;
    transition: background 0.2s, border-color 0.2s;
}
.see-more-btn:hover {
    background: var(--amber-glow);
    border-color: var(--amber);
}

.js-enhanced .see-more-btn {
    display: block;
}

.js-enhanced .gallery-work-overflow {
    display: none;
}

/* Read more / less buttons */
.desc-short {
    display: none;
}

.desc-read-more,
.desc-read-less {
    display: none;
}

.js-enhanced .desc-short {
    display: inline;
}

.js-enhanced .desc-full {
    display: none;
}

.js-enhanced .work-description.is-expanded .desc-short {
    display: none;
}

.js-enhanced .work-description.is-expanded .desc-full {
    display: inline;
}

.js-enhanced .desc-read-more,
.js-enhanced .desc-read-less {
    display: inline;
}

.desc-read-more,
.desc-read-less {
    background: none;
    border: none;
    color: var(--amber);
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    padding: 0;
    text-transform: uppercase;
    opacity: 0.7;
    transition: opacity 0.2s;
}
.desc-read-more:hover,
.desc-read-less:hover { opacity: 1; }

/* ─── 404 ─────────────────────────────────────────────────────────────────── */

.error-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
    gap: 1rem;
    text-align: center;
    padding: 4rem var(--gutter);
}

.error-code {
    font-family: var(--font-display);
    font-size: clamp(4rem, 12vw, 8rem);
    color: var(--amber);
    opacity: 0.2;
    line-height: 1;
}

.error-message {
    font-family: var(--font-body);
    font-style: italic;
    opacity: 0.55;
}

.error-back {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    color: var(--amber);
    opacity: 0.6;
    transition: opacity 0.2s;
}
.error-back:hover { opacity: 1; }

@media (max-width: 640px) {
    .contact-submit {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .site-title {
        font-size: clamp(1.6rem, 9vw, 2.35rem);
        letter-spacing: 0.03em;
        white-space: normal;
    }

    .site-nav {
        font-size: 0.68rem;
        letter-spacing: 0.14em;
    }

    .site-nav-overflow {
        left: 0;
        right: 0;
        min-width: 0;
    }

    .gallery-page,
    .collection-page,
    .collection-detail-page,
    .work-page,
    .about-page,
    .page-shell {
        padding-top: 2rem;
    }

    .exhibits-grid,
    .collection-grid {
        grid-template-columns: 1fr 1fr;
    }

    .artwork-year,
    .collection-card-desc {
        font-size: 0.64rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    body::after {
        animation: none;
        opacity: 0.32;
    }
}

@media (prefers-contrast: more) {
    body::after,
    #cosmos-stars,
    #cosmos-canvas {
        opacity: 0.18;
    }

    .artwork-card::after,
    .collection-card::after,
    .work-piece-glow {
        opacity: 0.12;
    }
}