/* =========================================================
   AI Engineering Portfolio
   Monochrome base + aurora gradient accent.
   ========================================================= */

:root {
    --black: #000;
    --ink: #1f1f1f;
    --muted: #7f7f7f;
    --line: #e7e7e7;
    --soft: #f5f5f5;
    --paper: #fff;

    --aur-1: #37D7FA;
    --aur-2: #4B72FE;
    --aur-3: #FF8DF2;
    --aur-4: #FF8705;
    --aurora: linear-gradient(148.35deg,
        var(--aur-1) -0.08%, var(--aur-2) 39.93%,
        var(--aur-3) 67.94%, var(--aur-4) 99.94%);
    --aurora-soft: linear-gradient(90deg,
        rgba(55,215,250,0.10), rgba(75,114,254,0.10) 40%,
        rgba(255,141,242,0.10) 70%, rgba(255,135,5,0.10));
    --aurora-text: linear-gradient(120deg,
        var(--aur-1), var(--aur-2) 40%,
        var(--aur-3) 70%, var(--aur-4));

    --font-sans: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Inter",
                 "Helvetica Neue", Helvetica, Arial, sans-serif;
    --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono",
                 Menlo, Consolas, monospace;

    --gap: clamp(1rem, 3vw, 1.75rem);
    --full: minmax(var(--gap), 1fr);
    --content: calc(100% - 2 * var(--gap));
    --radius: 12px;
    --radius-lg: 20px;
    --max-w: 1180px;
    --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
    font-family: var(--font-sans);
    color: var(--ink);
    background: var(--paper);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: "ss01", "cv11";
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--black); }
img, svg { max-width: 100%; display: block; }

/* =========================================================
   TEXT GRADIENT (for stats numbers, etc.)
   ========================================================= */

.text-gradient {
    background: var(--aurora-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

/* =========================================================
   GRID + SECTION
   ========================================================= */

.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 var(--gap);
    grid-column: content;
}

.section {
    display: grid;
    grid-template-columns: [full-start] var(--full) [content-start] var(--content) [content-end] var(--full) [full-end];
    padding: 5rem 0;
    position: relative;
}
.section-white  { background: var(--paper); color: var(--ink); }
.section-light  { background: var(--soft);  color: var(--ink); }

/* =========================================================
   TYPOGRAPHY
   ========================================================= */

.label,
.mono,
.stat-label,
.codeblock-lang,
.copy-label,
.footer p {
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-size: 0.75rem;
    color: var(--muted);
}

.label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 0 1.25rem;
    color: var(--ink);
}
.label.center { display: flex; justify-content: center; }
.label::before {
    content: "";
    width: 4px; height: 4px;
    background: currentColor;
    display: inline-block;
}
.label.center::before { display: none; }

.display {
    font-weight: 500;
    letter-spacing: -0.03em;
    line-height: 1.05;
    font-size: clamp(2.5rem, 2.04rem + 2.1vw, 4rem);
    margin: 0 0 1.5rem;
    max-width: 18ch;
    text-wrap: balance;
}
.display-accent {
    display: block;
    color: var(--muted);
    font-weight: 500;
    margin-top: 0.4rem;
}

.h2 {
    font-weight: 500;
    letter-spacing: -0.03em;
    line-height: 1.1;
    font-size: clamp(2rem, 1.54rem + 2.1vw, 3.5rem);
    margin: 0 0 1rem;
    max-width: 22ch;
    text-wrap: balance;
}

.lead {
    font-size: clamp(1rem, 0.92rem + 0.35vw, 1.25rem);
    color: var(--ink);
    margin: 0 0 2rem;
    max-width: 60ch;
    text-wrap: pretty;
}
.lead.small { font-size: clamp(0.875rem, 0.83rem + 0.17vw, 1rem); color: var(--muted); margin-bottom: 0; }
.lead.center { margin-left: auto; margin-right: auto; text-align: center; }
.lead strong { font-weight: 500; color: var(--black); }

.inline-link {
    color: var(--black);
    border-bottom: 1px solid var(--line);
    padding-bottom: 1px;
    transition: border-color 0.15s var(--ease);
}
.inline-link:hover { border-bottom-color: var(--black); }

/* =========================================================
   HEADER (LlamaIndex-inspired: sticky, glass, dropdown, CTAs)
   ========================================================= */

.header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(14px) saturate(150%);
    -webkit-backdrop-filter: blur(14px) saturate(150%);
    border-bottom: 1px solid var(--line);
}
.header-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 1rem var(--gap);
    display: flex;
    align-items: center;
    gap: 2rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    color: var(--black);
}
.brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 6px;
    flex-shrink: 0;
    box-shadow: 0 0 0 1px rgba(0,0,0,0.04);
}
.brand-word {
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: -0.01em;
    color: var(--black);
}

/* Nav */
.nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-left: auto;
    font-size: 0.9rem;
}
.nav-item { position: relative; }
.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--ink);
    background: none;
    border: 0;
    padding: 0.5rem 0.25rem;
    font: inherit;
    font-size: 0.9rem;
    cursor: pointer;
    transition: color 0.15s var(--ease);
    text-decoration: none;
}
.nav-link:hover { color: var(--black); }
/* Header right (icons + CTAs) */
.header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: 0.5rem;
}
.quick-links {
    display: flex;
    align-items: center;
    gap: 0.15rem;
    padding-right: 0.5rem;
    margin-right: 0.25rem;
    border-right: 1px solid var(--line);
}
.quick-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    color: var(--ink);
    border-radius: 8px;
    transition: color 0.15s var(--ease), background 0.15s var(--ease);
}
.quick-link img {
    width: 18px;
    height: 18px;
    object-fit: contain;
    filter: invert(0.08);
    transition: filter 0.15s var(--ease);
}
.quick-link:hover { color: var(--black); background: var(--soft); }
.quick-link:hover img { filter: invert(0); }
@media (max-width: 1080px) {
    .quick-links { display: none; }
}

.header-btn { padding: 0.55rem 1.25rem; font-size: 0.7rem; }

/* Hamburger */
.hamburger {
    display: none;
    background: none;
    border: 0;
    padding: 0.5rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
}
.hamburger span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--ink);
    transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile nav */
.mobile-nav {
    display: none;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem var(--gap) 1.5rem;
    border-top: 1px solid var(--line);
    background: var(--paper);
}
.mobile-nav[hidden] { display: none !important; }
.mobile-link {
    display: block;
    padding: 0.75rem 0.5rem;
    font-size: 1rem;
    color: var(--ink);
    border-radius: 8px;
}
.mobile-link:hover { background: var(--soft); }
.mobile-ctas { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 0.75rem; }
.mobile-ctas .btn { justify-content: center; }

@media (max-width: 860px) {
    .nav { display: none; }
    .header-right { display: none; }
    .hamburger { display: flex; }
    .mobile-nav:not([hidden]) { display: flex; }
}

/* =========================================================
   BUTTONS
   ========================================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.04em;
    line-height: 1;
    padding: 0.75rem 2rem;
    border: 1px solid transparent;
    transition: background 0.15s var(--ease), border-color 0.15s var(--ease),
                color 0.15s var(--ease), background-size 0.3s var(--ease);
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
}
.btn-primary { background: var(--black); color: var(--soft); border-color: var(--black); }
.btn-primary:hover { background: var(--ink); border-color: var(--ink); color: #fff; }
.btn-secondary { background: var(--paper); color: var(--black); border-color: var(--line); }
.btn-secondary:hover { background: var(--soft); border-color: var(--line); }
.btn-gradient {
    background: var(--aurora);
    background-size: 100% 100%;
    color: #fff;
    border: 0;
    border-radius: var(--radius-lg);
    font-weight: 500;
}
.btn-gradient:hover { background-size: 140% 140%; color: #fff; }

.cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 0.5rem;
}
.cta-row.center { justify-content: center; }

/* =========================================================
   HERO
   ========================================================= */

.hero { padding: 7rem 0 5rem; }

/* =========================================================
   MARQUEE (scrolling logos)
   ========================================================= */

.marquee-section { padding: 4rem 0 5rem; }
.marquee {
    grid-column: full;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-top: 2rem;
    width: 100%;
    overflow: hidden;
}
.marquee-track {
    display: flex;
    width: max-content;
    will-change: transform;
}
.marquee-group {
    display: flex;
    align-items: center;
    gap: 2.75rem;
    padding-right: 2.75rem;
    flex-shrink: 0;
}
.marquee-item {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    flex-shrink: 0;
    color: var(--ink);
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    white-space: nowrap;
}
.marquee-item img,
.marquee-item svg {
    width: 22px;
    height: 22px;
    object-fit: contain;
    flex-shrink: 0;
}
.marquee-item:hover span {
    background: var(--aurora-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.marquee-left  { animation: marquee-scroll-left  50s linear infinite; }
.marquee-right { animation: marquee-scroll-right 55s linear infinite; }

@keyframes marquee-scroll-left  { to   { transform: translateX(-50%); } }
@keyframes marquee-scroll-right { from { transform: translateX(-50%); } to { transform: translateX(0); } }

@media (prefers-reduced-motion: reduce) {
    .marquee-left, .marquee-right { animation: none; }
}

/* =========================================================
   STATS (3 big numbers with gradient text)
   ========================================================= */

.stats-section { padding: 5rem 0; }
.stats-frame {
    grid-column: full;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}
.stats-list {
    list-style: none;
    margin: 1.5rem 0 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
}
.stat-item {
    padding: 2.5rem 2rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.75rem;
}
.stat-number {
    margin: 0;
    font-weight: 500;
    letter-spacing: -0.04em;
    line-height: 0.95;
    font-size: clamp(3.5rem, 3.04rem + 2.1vw, 5rem);
}
.stat-caption {
    margin: 0;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-size: 0.75rem;
    color: var(--ink);
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
}
.stat-square {
    width: 4px; height: 4px;
    background: currentColor;
    display: inline-block;
}
@media (max-width: 820px) {
    .stats-list { grid-template-columns: 1fr; }
}

/* =========================================================
   SECTION HEAD (for projects)
   ========================================================= */

.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}
.link-arrow {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--ink);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding-bottom: 2px;
    border-bottom: 1px solid var(--line);
    transition: border-color 0.15s var(--ease), gap 0.2s var(--ease);
}
.link-arrow:hover { color: var(--black); border-bottom-color: var(--ink); gap: 0.75rem; }

/* =========================================================
   SKILLS GRID
   ========================================================= */

.skills-grid {
    margin-top: 2.5rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}
@media (max-width: 980px) { .skills-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .skills-grid { grid-template-columns: 1fr; } }

.skill-cat {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
    position: relative;
    overflow: hidden;
}
.skill-cat::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--aurora);
    opacity: 0;
    transition: opacity 0.25s var(--ease);
}
.skill-cat:hover { border-color: var(--ink); transform: translateY(-2px); }
.skill-cat:hover::before { opacity: 1; }

.skill-cat-head {
    display: flex;
    align-items: baseline;
    gap: 0.6rem;
}
.skill-cat-num {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--muted);
    letter-spacing: 0.04em;
}
.skill-cat-title {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--black);
    letter-spacing: -0.01em;
}

.skill-chips {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}
.skill-chips li { display: inline-flex; }
.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.8rem;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 999px;
    font-size: 0.8rem;
    color: var(--ink);
    transition: border-color 0.15s var(--ease), color 0.15s var(--ease), background 0.15s var(--ease);
    text-decoration: none;
    white-space: nowrap;
}
.chip:hover { border-color: var(--ink); color: var(--black); background: var(--soft); }

/* =========================================================
   PROJECT GRID
   ========================================================= */

.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 1fr;
    gap: 1rem;
}
.grid.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) {
    .grid,
    .grid.grid-2 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .grid,
    .grid.grid-2 { grid-template-columns: 1fr; }
}
.card {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    min-height: 200px;
    transition: border-color 0.2s var(--ease), transform 0.25s var(--ease),
                box-shadow 0.25s var(--ease);
    position: relative;
    overflow: hidden;
}
.card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--aurora-soft);
    opacity: 0;
    transition: opacity 0.3s var(--ease);
    pointer-events: none;
}
.card:hover {
    border-color: var(--ink);
    transform: translateY(-2px);
    box-shadow: 0 20px 40px -20px rgba(0,0,0,0.15);
}
.card:hover::before { opacity: 1; }
.card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    position: relative;
}
.card-title {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--black);
    margin: 0;
    word-break: break-word;
}
.card-title .gh {
    width: 16px;
    height: 16px;
    color: var(--muted);
    flex-shrink: 0;
}
.card-arrow {
    color: var(--muted);
    transition: transform 0.2s var(--ease), color 0.2s var(--ease);
    flex-shrink: 0;
}
.card:hover .card-arrow { transform: translate(2px, -2px); color: var(--black); }
.card-desc {
    margin: 0;
    color: var(--muted);
    font-size: 0.9rem;
    line-height: 1.5;
    flex: 1;
    position: relative;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.card-foot {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.85rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-top: auto;
    position: relative;
}
.lang { display: inline-flex; align-items: center; gap: 0.4rem; }
.metric { display: inline-flex; align-items: center; gap: 0.3rem; }
.metric .icon { font-size: 0.85rem; }
.card-foot .updated { margin-left: auto; }

.skeleton {
    background: linear-gradient(90deg, var(--soft) 0%, #ececec 50%, var(--soft) 100%);
    background-size: 200% 100%;
    animation: shimmer 1.4s linear infinite;
    min-height: 200px;
}
@keyframes shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* =========================================================
   CTA SECTION (Get in touch, restored)
   ========================================================= */

.cta-section { padding: 6rem 0; }
.cta-wrap {
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 4rem 2rem;
    position: relative;
    overflow: hidden;
}
.cta-wrap::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--aurora-soft);
    pointer-events: none;
}
.cta-inner {
    position: relative;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
}
.cta-title { margin: 0; max-width: 22ch; }
.cta-section .h2 { margin: 0 auto; }

/* =========================================================
   BIG FOOTER
   ========================================================= */

.big-footer {
    background: var(--paper);
    border-top: 1px solid var(--line);
    margin-top: 2rem;
}
.big-footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 2fr auto;
    gap: 3rem;
    padding: 5rem 0 4rem;
    align-items: start;
}
@media (max-width: 980px) {
    .big-footer-grid { grid-template-columns: 1fr 1fr; }
    .big-footer-side { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
    .big-footer-grid { grid-template-columns: 1fr; gap: 2.5rem; padding: 3.5rem 0 2.5rem; }
}

.big-footer-lead { display: flex; flex-direction: column; gap: 1.5rem; }
.big-footer-title {
    margin: 0;
    font-weight: 500;
    letter-spacing: -0.03em;
    line-height: 1.05;
    font-size: clamp(1.75rem, 1.4rem + 1.5vw, 2.5rem);
    color: var(--black);
    max-width: 18ch;
    text-wrap: balance;
}
.big-footer-ctas {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

/* Footer socials row */
.footer-socials {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
}
.footer-social {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    color: var(--ink);
    border: 1px solid var(--line);
    border-radius: 8px;
    transition: color 0.15s var(--ease), border-color 0.15s var(--ease);
}
.footer-social img {
    width: 18px;
    height: 18px;
    object-fit: contain;
    filter: invert(0.08);
    transition: filter 0.15s var(--ease);
}
.footer-social:hover { color: var(--black); border-color: var(--ink); }
.footer-social:hover img { filter: invert(0); }

/* Footer link columns */
.big-footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}
@media (max-width: 600px) { .big-footer-links { grid-template-columns: repeat(2, 1fr); } }

.footer-col-title {
    margin: 0 0 1rem;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-size: 0.7rem;
    color: var(--muted);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.footer-col-title::before {
    content: "";
    width: 4px; height: 4px;
    background: currentColor;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin: 0 0 0.5rem; }
.footer-col a {
    font-size: 0.9rem;
    color: var(--ink);
    transition: color 0.15s var(--ease);
}
.footer-col a:hover { color: var(--black); }

/* Social side (footer) */
.big-footer-side { display: flex; flex-direction: column; gap: 0.75rem; }
.footer-social:hover { color: var(--black); border-color: var(--ink); }

/* Bottom bar (minimal) */
.footer-bottom {
    border-top: 1px solid var(--line);
    background: var(--soft);
}
.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    padding: 1.25rem 0;
}
.footer-bottom p { margin: 0; }
.footer-bottom a { color: var(--ink); }
.footer-bottom a:hover { color: var(--black); border-bottom: 1px solid var(--ink); }
@media (max-width: 600px) {
    .footer-bottom-inner { flex-direction: column; align-items: flex-start; }
}

/* =========================================================
   FOOTER MARK (MADE WITH 💙 BY ENGINEERS wordmark, below the bottom bar)
   ========================================================= */

.footer-mark {
    width: 100%;
    padding: 2.5rem var(--gap) 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--paper);
    overflow: hidden;
}
.footer-mark svg {
    width: 100%;
    max-width: 2400px;
    height: auto;
    display: block;
}
@media (max-width: 720px) {
    .footer-mark { padding: 1.5rem var(--gap) 1rem; }
    .footer-mark svg { max-width: 100%; }
}

/* =========================================================
   GALLERY (placeholders for upcoming media)
   ========================================================= */

.gallery-grid {
    margin-top: 2.5rem;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}
@media (max-width: 900px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .gallery-grid { grid-template-columns: 1fr; } }

.gallery-item {
    margin: 0;
    aspect-ratio: 4 / 3;
    background: var(--paper);
    border: 1px dashed var(--line);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.gallery-item:hover { border-color: var(--ink); transform: translateY(-2px); }

.gallery-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--muted);
}

.gallery-tag {
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-size: 0.7rem;
    padding: 0.25rem 0.65rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--ink);
    background: var(--soft);
}

.gallery-slot {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--muted);
}

/* =========================================================
   A11Y
   ========================================================= */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .skeleton { animation: none; }
}
::selection { background: var(--aur-3); color: #000; }