/* ============================================================================
   Ovisual Art — dark modernist
   Palette and rules per research.md §13 / plan.md.
   No external fonts. WCAG AA contrast. Focus-visible accent outlines.
   ============================================================================ */

:root {
    --bg:        #0b0c10;
    --bg-elev:   #14161c;
    --fg:        #e8eaed;
    --fg-muted:  #9aa0a6;
    --accent:    #c8a951;
    --danger:    #d96666;
    --border:    #23262d;

    --font-sans: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Consolas, monospace;

    --content-max: 1200px;
    --gap: 8px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); }
body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

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

.container { max-width: var(--content-max); margin: 0 auto; padding: 0 calc(var(--gap) * 3); }

.skip-link {
    position: absolute; left: -9999px; top: 8px;
    background: var(--bg-elev); color: var(--fg); padding: 8px 16px;
    border: 1px solid var(--border);
}
.skip-link:focus { left: 8px; z-index: 100; }

/* Header / nav */
.site-header {
    border-bottom: 1px solid var(--border);
    background: linear-gradient(0deg, transparent, rgba(255,255,255,0.02));
}
.site-header__inner {
    display: flex; align-items: center; justify-content: space-between;
    padding: calc(var(--gap) * 3) calc(var(--gap) * 3);
}
.brand {
    font-weight: 600; letter-spacing: 0.04em;
    color: var(--fg); font-size: 1.05rem;
}
.brand__mark { color: var(--accent); margin-right: 6px; }
.site-nav a { margin-left: calc(var(--gap) * 3); color: var(--fg-muted); }
.site-nav a:hover { color: var(--fg); text-decoration: none; }

/* Footer */
.site-footer {
    border-top: 1px solid var(--border);
    margin-top: calc(var(--gap) * 8);
    color: var(--fg-muted);
    font-size: 0.875rem;
}
.site-footer__inner {
    display: flex; justify-content: space-between;
    padding: calc(var(--gap) * 3) calc(var(--gap) * 3);
}
.meta { font-family: var(--font-mono); font-size: 0.8rem; }

/* Page chrome */
.page { padding: calc(var(--gap) * 6) 0; }
h1 { font-size: 2rem; font-weight: 600; letter-spacing: -0.01em; margin: 0 0 calc(var(--gap) * 2); }
h2 { font-size: 1.25rem; font-weight: 600; margin: calc(var(--gap) * 4) 0 var(--gap); }
p  { margin: var(--gap) 0; }
hr { border: 0; border-top: 1px solid var(--border); margin: calc(var(--gap) * 4) 0; }
.muted { color: var(--fg-muted); }

/* Search bar */
.search {
    display: flex; gap: var(--gap);
    margin: calc(var(--gap) * 3) 0 calc(var(--gap) * 4);
}
.search input[type="search"] {
    flex: 1;
}

/* Forms */
form.stacked label { display: block; margin-top: calc(var(--gap) * 2); color: var(--fg-muted); font-size: 0.9rem; }
input[type="text"], input[type="email"], input[type="search"], input[type="file"], textarea, select {
    background: var(--bg-elev); color: var(--fg);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 10px 12px;
    font: inherit;
    width: 100%;
}
textarea { min-height: 6rem; resize: vertical; }
input[type="checkbox"] { accent-color: var(--accent); margin-right: 8px; }
.help { color: var(--fg-muted); font-size: 0.85rem; margin-top: 4px; }
.error-band {
    border: 1px solid var(--danger);
    background: rgba(217, 102, 102, 0.08);
    color: var(--fg);
    padding: 12px 16px; margin: calc(var(--gap) * 2) 0;
}
.success-band {
    border: 1px solid var(--accent);
    background: rgba(200, 169, 81, 0.08);
    padding: 12px 16px; margin: calc(var(--gap) * 2) 0;
}

.btn, button {
    background: var(--accent); color: #1a1a1a; border: 0;
    padding: 10px 20px; font: inherit; cursor: pointer;
    border-radius: 2px; letter-spacing: 0.02em; font-weight: 600;
}
.btn:hover, button:hover { filter: brightness(1.05); text-decoration: none; }
.btn--ghost { background: transparent; color: var(--fg); border: 1px solid var(--border); }
.btn--danger { background: var(--danger); color: #fff; }

/* Gallery grid */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: calc(var(--gap) * 2);
    list-style: none; padding: 0; margin: 0;
}
.gallery__item {
    background: var(--bg-elev);
    border: 1px solid var(--border);
}
.gallery__item a { display: block; color: inherit; }
.gallery__thumb {
    aspect-ratio: 4 / 3;
    background: #000;
    overflow: hidden;
}
.gallery__thumb img {
    width: 100%; height: 100%; object-fit: cover;
}
.gallery__caption {
    padding: var(--gap) calc(var(--gap) * 2) calc(var(--gap) * 2);
}
.gallery__caption .title { font-weight: 600; }
.gallery__caption .author { color: var(--fg-muted); font-size: 0.85rem; }
.gallery__views { font-family: var(--font-mono); font-size: 0.75rem; color: var(--fg-muted); }

/* Home strips */
.home__strip-heading { margin-top: calc(var(--gap) * 5); }
.home__strip-heading + .gallery,
.home__strip-sub + .gallery { margin-top: calc(var(--gap) * 2); }
.home__strip-sub { margin-top: 4px; font-size: 0.9rem; }

/* View page */
.view figure { margin: 0; }
.view__media {
    background: #000; border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    padding: 0;
}
.view__media img, .view__media video {
    object-fit: contain;
    max-height: 80vh;
    width: auto; max-width: 100%;
}
.view__tags { list-style: none; padding: 0; margin: calc(var(--gap) * 2) 0; display: flex; flex-wrap: wrap; gap: var(--gap); }
.view__tags li a {
    display: inline-block; padding: 4px 10px;
    background: var(--bg-elev); border: 1px solid var(--border);
    color: var(--fg-muted); font-family: var(--font-mono); font-size: 0.85rem;
}
.view__tags li a:hover { color: var(--fg); text-decoration: none; border-color: var(--accent); }
.view__author { color: var(--fg-muted); margin: var(--gap) 0 calc(var(--gap) * 3); }
.view__views  { margin-left: 6px; }
.view__views strong { color: var(--fg); font-weight: 600; }

/* Tags row + QR-toggle button -------------------------------------------- */
.view__meta {
    display: flex; align-items: center; flex-wrap: wrap;
    gap: var(--gap);
    margin: calc(var(--gap) * 2) 0;
}
.view__meta .view__tags { margin: 0; flex: 1 1 auto; }

.qr-toggle {
    background: transparent;
    color: var(--fg-muted);
    border: 1px solid var(--border);
    padding: 6px;
    width: 36px; height: 36px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 2px;
    cursor: pointer;
    flex: 0 0 auto;
    transition: color .12s ease, border-color .12s ease;
}
.qr-toggle:hover { color: var(--fg); border-color: var(--accent); }
.qr-toggle__icon { display: block; }

/* QR dialog (native <dialog>) -------------------------------------------- */
.qr-dialog {
    border: 1px solid var(--border);
    background: var(--bg-elev);
    color: var(--fg);
    padding: 0;
    max-width: 360px;
    width: calc(100% - 32px);
    box-shadow: 0 24px 60px rgba(0,0,0,0.55);
}
.qr-dialog::backdrop { background: rgba(0,0,0,0.65); }
.qr-dialog__head {
    display: flex; align-items: center; justify-content: space-between;
    padding: calc(var(--gap) * 2) calc(var(--gap) * 2);
    border-bottom: 1px solid var(--border);
    margin: 0;
}
.qr-dialog__head h2 { font-size: 1rem; margin: 0; }
.qr-dialog__close {
    background: transparent; color: var(--fg-muted); border: 0;
    font-size: 1.6rem; line-height: 1; padding: 0 6px; cursor: pointer;
    font-weight: 400;
}
.qr-dialog__close:hover { color: var(--fg); }
.qr-dialog__body { padding: calc(var(--gap) * 3); text-align: center; }
.qr-dialog__img {
    background: #fff;
    padding: 12px;
    border: 1px solid var(--border);
    margin: 0 auto;
    width: 256px; max-width: 100%;
    display: flex; align-items: center; justify-content: center;
    min-height: 256px;
}
.qr-dialog__img svg, .qr-dialog__img img { width: 100%; height: auto; display: block; }
.qr-dialog__url {
    font-family: var(--font-mono); font-size: 0.8rem;
    color: var(--fg-muted); margin-top: calc(var(--gap) * 2);
    word-break: break-all;
}
.qr-dialog__url a { color: var(--accent); }

.visually-hidden {
    position: absolute !important;
    width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* Mint page ------------------------------------------------------------- */
.mint h2 { margin-top: calc(var(--gap) * 5); }
.mint__status { list-style: none; padding: 0; margin: var(--gap) 0; }
.mint__status li { margin: 6px 0; }
.mint__status code {
    background: var(--bg-elev); border: 1px solid var(--border);
    padding: 1px 6px; font-size: 0.8rem; word-break: break-all;
}
.mint__chains { display: grid; gap: var(--gap); margin: var(--gap) 0; }
.mint__chain {
    display: grid; grid-template-columns: auto 1fr; gap: 8px 14px;
    background: var(--bg-elev); border: 1px solid var(--border);
    padding: 12px 14px; cursor: pointer;
    align-items: center;
}
.mint__chain strong { display: block; }
.mint__chain .muted { font-family: var(--font-mono); font-size: 0.75rem; grid-column: 2; }
.mint__chain input[type="radio"] { grid-row: span 2; width: 18px; height: 18px; }
.mint__chain:has(input:checked) { border-color: var(--accent); }

/* NFT badge on the View page ------------------------------------------- */
.view__nft {
    margin: calc(var(--gap) * 3) 0;
    padding: calc(var(--gap) * 2);
    background: var(--bg-elev);
    border: 1px solid var(--accent);
    display: flex; gap: calc(var(--gap) * 2); align-items: center; flex-wrap: wrap;
}
.view__nft strong { color: var(--accent); letter-spacing: 0.04em; text-transform: uppercase; font-size: 0.8rem; }
.view__nft a.btn { margin-left: auto; }
.view__nft code { font-size: 0.8rem; }

.view__mint-cta {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 0.85rem; margin-left: 8px;
}

/* Statistics page ------------------------------------------------------- */
.stats__cards {
    list-style: none; padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: calc(var(--gap) * 2);
    margin: calc(var(--gap) * 3) 0;
}
.stat-card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    padding: calc(var(--gap) * 3);
    text-align: left;
}
.stat-card__num {
    font-size: 2.4rem; font-weight: 600;
    color: var(--accent);
    letter-spacing: -0.02em;
    line-height: 1.1;
}
.stat-card__label {
    color: var(--fg-muted);
    font-size: 0.85rem;
    margin-top: 6px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.stats__chart {
    margin: var(--gap) 0 calc(var(--gap) * 3);
    background: var(--bg-elev);
    border: 1px solid var(--border);
    padding: calc(var(--gap) * 2);
}
.stats__chart svg { width: 100%; height: auto; display: block; }
.stats__chart figcaption { margin-top: var(--gap); font-size: 0.85rem; }
.stats__chart rect { transition: opacity .12s ease; }
.stats__chart rect:hover { opacity: 1 !important; fill: var(--fg); }

.stats__top { list-style: none; padding: 0; margin: 0; }
.stats__top-row {
    display: flex; align-items: center; gap: calc(var(--gap) * 2);
    background: var(--bg-elev);
    border: 1px solid var(--border);
    padding: var(--gap) calc(var(--gap) * 2);
    margin-bottom: var(--gap);
}
.stats__top-link {
    display: flex; align-items: center; gap: calc(var(--gap) * 2);
    flex: 1 1 auto; color: inherit; text-decoration: none; min-width: 0;
}
.stats__top-link img {
    width: 64px; height: 48px; object-fit: cover;
    border: 1px solid var(--border);
    flex: 0 0 auto;
}
.stats__top-title { font-weight: 600; flex: 1 1 auto; min-width: 0;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.stats__top-count { font-family: var(--font-mono); color: var(--accent); flex: 0 0 auto; }