/* VRI website — shares the visual language of examples/common/shell.html
   (same palette / CSS variables / monospace stack) so the site and the
   running example pages feel like one product. */

:root {
    --bg-0: #0b0b0f;
    --bg-1: #14141c;
    --panel: rgba(20, 20, 28, .92);
    --line: #262633;
    --text: #ececf4;
    --muted: #8b8b9e;
    --accent: #7aa2ff;
    --accent-2: #b18cff;
    --err: #ff6b7a;
    --warn: #ffc15e;
    --ok: #7dd792;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    min-height: 100%;
    color: var(--text);
    font-family: ui-monospace, "JetBrains Mono", "Cascadia Mono", "SFMono-Regular", Menlo, monospace;
    background:
        radial-gradient(1100px 700px at 12% -15%, #1b1b3a 0%, transparent 60%),
        radial-gradient(900px 600px at 100% 115%, #2a1442 0%, transparent 58%),
        linear-gradient(180deg, var(--bg-1), var(--bg-0));
    background-attachment: fixed;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 12px 16px 48px; }

/* ---- topbar (same shape as the example shell) ---- */
.topbar {
    display: flex; align-items: center; gap: 12px; padding: 0 14px; min-height: 44px;
    border: 1px solid var(--line); border-radius: 10px; background: var(--panel);
    position: sticky; top: 12px; z-index: 10; backdrop-filter: blur(6px);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: .3px; color: var(--text); }
.brand:hover { text-decoration: none; }
.dot {
    width: 9px; height: 9px; border-radius: 999px;
    background: linear-gradient(180deg, var(--accent-2), var(--accent));
    box-shadow: 0 0 12px rgba(122, 162, 255, .7);
}
.sub { color: var(--muted); font-weight: 400; font-size: 12px; }
.nav { margin-left: auto; display: flex; gap: 4px; }
.nav a {
    color: var(--muted); font-size: 13px; padding: 6px 12px; border-radius: 8px;
}
.nav a:hover { color: var(--text); background: rgba(122, 162, 255, .08); text-decoration: none; }
.nav a.active { color: var(--text); background: rgba(122, 162, 255, .12); }

/* ---- hero ---- */
.hero { padding: 72px 8px 40px; text-align: center; }
.hero h1 {
    margin: 0; font-size: 56px; letter-spacing: 2px;
    background: linear-gradient(120deg, var(--accent-2), var(--accent) 60%, #8fd0ff);
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .tagline { margin: 14px 0 0; font-size: 18px; color: var(--text); }
.hero .blurb { margin: 14px auto 0; max-width: 680px; font-size: 14px; line-height: 1.7; color: var(--muted); }
.hero .blurb code { color: var(--accent); }
.cta { margin-top: 28px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 22px; border-radius: 10px; font-size: 14px; font-weight: 700;
    border: 1px solid var(--line); transition: transform .12s ease, box-shadow .12s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn.primary {
    color: #0b0b0f; border: 0;
    background: linear-gradient(180deg, var(--accent-2), var(--accent));
    box-shadow: 0 6px 24px rgba(122, 162, 255, .35);
}
.btn.ghost { color: var(--text); background: var(--panel); }

/* ---- sections / panels ---- */
section.block { margin-top: 40px; }
section.block > h2 { font-size: 18px; letter-spacing: .5px; margin: 0 0 6px; }
section.block > h2::before { content: "// "; color: var(--muted); }
section.block > .note { color: var(--muted); font-size: 12.5px; margin: 0 0 14px; line-height: 1.6; }

.panel {
    border: 1px solid var(--line); border-radius: 14px; background: var(--panel);
    overflow: hidden;
}

pre.code {
    margin: 0; padding: 18px 20px; overflow-x: auto;
    font-size: 13px; line-height: 1.65; color: #c8c8d6;
}
pre.code .k { color: var(--accent-2); }
pre.code .f { color: var(--accent); }
pre.code .s { color: var(--ok); }
pre.code .c { color: var(--muted); }

/* ---- tables ---- */
.tablewrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { padding: 8px 14px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { text-align: left; color: var(--muted); font-weight: 400; font-size: 12px; }
td:first-child { color: var(--text); }
td:not(:first-child), th:not(:first-child) { text-align: center; }
tr:last-child td { border-bottom: 0; }
.legend { padding: 10px 14px; color: var(--muted); font-size: 12px; border-bottom: 1px solid var(--line); }

/* ---- example gallery ---- */
.grid {
    display: grid; gap: 14px; margin-top: 18px;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
.card {
    display: flex; flex-direction: column;
    border: 1px solid var(--line); border-radius: 14px; background: var(--panel);
    overflow: hidden; transition: transform .12s ease, border-color .12s ease;
}
.card:hover { transform: translateY(-2px); border-color: rgba(122, 162, 255, .45); }
.thumb {
    height: 110px; position: relative;
    display: flex; align-items: flex-end; padding: 10px 12px;
}
.thumb::after {
    content: ""; position: absolute; inset: 0;
    background:
        linear-gradient(90deg, rgba(122, 162, 255, .06) 1px, transparent 1px) 0 0 / 22px 22px,
        linear-gradient(180deg, rgba(122, 162, 255, .06) 1px, transparent 1px) 0 0 / 22px 22px;
}
.thumb .num { position: relative; z-index: 1; font-size: 11px; color: rgba(236, 236, 244, .75); }
.card .body { padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card h3 { margin: 0; font-size: 15px; }
.card .desc { margin: 0; color: var(--muted); font-size: 12.5px; line-height: 1.55; flex: 1; }
.tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag {
    font-size: 10.5px; color: var(--accent); padding: 2px 8px;
    border: 1px solid rgba(122, 162, 255, .35); border-radius: 999px;
}
.run { display: flex; gap: 8px; margin-top: 4px; }
.run a {
    flex: 1; text-align: center; font-size: 12px; font-weight: 700; padding: 7px 0;
    border-radius: 8px; border: 1px solid var(--line); color: var(--text);
}
.run a:hover { text-decoration: none; border-color: var(--accent); color: var(--accent); }
.run a.gpu { background: linear-gradient(180deg, rgba(177, 140, 255, .18), rgba(122, 162, 255, .18)); }

/* ---- footer ---- */
footer { margin-top: 56px; text-align: center; color: var(--muted); font-size: 12px; line-height: 1.8; }
footer .heart { color: var(--err); }

@media (max-width: 640px) {
    .hero { padding-top: 48px; }
    .hero h1 { font-size: 40px; }
    .nav a { padding: 6px 8px; }
}