/* swx site: plain CSS, light and dark from the system setting. */

:root {
    --ground: #fbfaf7;
    --surface: #ffffff;
    --ink: #1b1d22;
    --muted: #5d636e;
    --rule: #e4e1da;
    --accent: #e8572a;
    --accent-ink: #b33a14;
    --accent-soft: #fde9e1;
    --code-ground: #16181d;
    --code-ink: #e9e6df;
    --code-muted: #8b919c;
    --bar-spm: #c9c4b9;
    --bar-swx: var(--accent);
    --radius: 10px;
    --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Roboto, "Helvetica Neue", Arial, sans-serif;
    --measure: 68rem;
    color-scheme: light;
}

@media (prefers-color-scheme: dark) {
    :root {
        --ground: #111317;
        --surface: #181b20;
        --ink: #ecebe7;
        --muted: #9aa0aa;
        --rule: #2a2e35;
        --accent: #ff7a4d;
        --accent-ink: #ff9a76;
        --accent-soft: #3a2119;
        --code-ground: #0b0c0f;
        --bar-spm: #464b55;
        color-scheme: dark;
    }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-padding-top: 5rem; }

body {
    margin: 0;
    background: var(--ground);
    color: var(--ink);
    font: 17px/1.6 var(--sans);
}

a { color: var(--accent-ink); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }

code, pre, kbd { font-family: var(--mono); font-size: 0.88em; }
:not(pre) > code {
    background: var(--accent-soft);
    padding: 0.08em 0.35em;
    border-radius: 5px;
    overflow-wrap: anywhere;
}

.wrap { max-width: var(--measure); margin: 0 auto; padding-inline: 1.25rem; }

/* Header */

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: color-mix(in srgb, var(--ground) 88%, transparent);
    backdrop-filter: saturate(1.4) blur(10px);
    border-bottom: 1px solid var(--rule);
}
.site-header .wrap { display: flex; align-items: center; gap: 1.5rem; min-height: 3.5rem; flex-wrap: wrap; }
.brand { font: 700 1.15rem/1 var(--mono); color: var(--ink); text-decoration: none; letter-spacing: -0.02em; }
.brand span { color: var(--accent); }
.site-nav { display: flex; gap: 1.25rem; margin-left: auto; flex-wrap: wrap; }
.site-nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
.site-nav a:hover, .site-nav a[aria-current] { color: var(--ink); }

/* Hero */

.hero { padding-block: 4.5rem 3rem; }
.eyebrow { font: 600 0.8rem/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent-ink); margin: 0 0 1rem; }
.hero h1 {
    font-size: clamp(2.3rem, 6vw, 4rem);
    line-height: 1.05;
    letter-spacing: -0.035em;
    margin: 0 0 1.25rem;
    max-width: 16ch;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.lede { font-size: 1.2rem; color: var(--muted); max-width: 40rem; margin: 0 0 2rem; }

/* Command with a copy button */

.command {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--code-ground);
    color: var(--code-ink);
    border-radius: var(--radius);
    padding: 0.85rem 0.85rem 0.85rem 1.1rem;
    max-width: 44rem;
}
.command code { background: none; padding: 0; font-size: 0.92rem; overflow-x: auto; white-space: nowrap; flex: 1; min-width: 0; }
.command code::before { content: "$ "; color: var(--code-muted); }
.copy {
    flex: none;
    font: 600 0.8rem/1 var(--sans);
    color: var(--code-ink);
    background: #2a2e36;
    border: 0;
    border-radius: 6px;
    padding: 0.55rem 0.75rem;
    cursor: pointer;
}
.copy:hover { background: #3a3f49; }
.note { color: var(--muted); font-size: 0.92rem; margin-top: 0.85rem; }

/* Sections */

section { padding-block: 3.5rem; border-top: 1px solid var(--rule); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); letter-spacing: -0.025em; line-height: 1.15; margin: 0 0 0.75rem; }
h3 { font-size: 1.1rem; margin: 0 0 0.4rem; letter-spacing: -0.01em; }
.section-lede { color: var(--muted); max-width: 42rem; margin: 0 0 2rem; }

.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); }
.card {
    background: var(--surface);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    padding: 1.25rem 1.35rem;
}
.card p { margin: 0; color: var(--muted); font-size: 0.97rem; }
.card .figure { font: 700 2rem/1 var(--mono); color: var(--accent); letter-spacing: -0.03em; margin-bottom: 0.6rem; }

/* Benchmark bars */

.bench { display: grid; gap: 1.4rem; max-width: 50rem; }
.bench-row h3 { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.bench-row h3 .speedup { font: 700 1rem/1.4 var(--mono); color: var(--accent-ink); }
.bar { display: grid; grid-template-columns: 4.5rem 1fr; align-items: center; gap: 0.75rem; font-size: 0.85rem; margin-top: 0.35rem; }
.bar .label { color: var(--muted); font-family: var(--mono); }
.bar .track { position: relative; height: 1.4rem; }
.bar .fill {
    height: 100%;
    width: var(--w);
    min-width: 2px;
    border-radius: 4px;
    background: var(--bar-spm);
}
.bar.swx .fill { background: var(--bar-swx); }
.bar .value { position: absolute; left: calc(var(--w) + 0.5rem); top: 50%; transform: translateY(-50%); font-family: var(--mono); white-space: nowrap; }
.bar .value.inside { left: auto; right: calc(100% - var(--w) + 0.5rem); color: var(--ground); }

/* Tables */

.table-scroll { overflow-x: auto; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { text-align: left; padding: 0.7rem 1rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
th { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); font-weight: 600; }
td code { white-space: nowrap; }

/* Code blocks */

pre {
    background: var(--code-ground);
    color: var(--code-ink);
    border-radius: var(--radius);
    padding: 1rem 1.2rem;
    overflow-x: auto;
    line-height: 1.55;
    margin: 1rem 0 1.5rem;
}
pre .c { color: var(--code-muted); }

/* Check list */

.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.6rem; grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr)); }
.checks li { padding-left: 1.6rem; position: relative; }
.checks li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

/* Guide layout */

.guide { display: grid; grid-template-columns: 13rem minmax(0, 1fr); gap: 3rem; padding-block: 3rem; }
.toc { position: sticky; top: 5rem; align-self: start; font-size: 0.92rem; }
.toc ol { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.45rem; }
.toc a { color: var(--muted); text-decoration: none; }
.toc a:hover { color: var(--ink); }
.guide article section { padding-block: 0 2.5rem; border: 0; }
.guide article h2 { font-size: 1.6rem; padding-top: 0.5rem; }
.guide article p, .guide article li { max-width: 46rem; }

@media (max-width: 52rem) {
    .guide { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; }
    .toc { position: static; }
    .toc ol { display: flex; flex-wrap: wrap; gap: 0.4rem 1rem; }
}

/* Footer */

.site-footer { border-top: 1px solid var(--rule); padding-block: 2rem 3rem; color: var(--muted); font-size: 0.9rem; }
.site-footer .wrap { display: flex; gap: 1rem 2rem; flex-wrap: wrap; justify-content: space-between; }
.site-footer a { color: var(--muted); }

/* Feature and principle lists: a bold label, then a short clause */

.features { padding-left: 1.2rem; margin: 0 0 1.5rem; max-width: 46rem; display: grid; gap: 0.45rem; }
.features li::marker { color: var(--accent); }

/* Example tabs */

.tabs { display: flex; gap: 0.25rem; flex-wrap: wrap; border-bottom: 1px solid var(--rule); margin-bottom: 1rem; }
.tabs button {
    font: 600 0.92rem/1 var(--sans);
    color: var(--muted);
    background: none;
    border: 0;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    padding: 0.7rem 0.9rem;
    cursor: pointer;
}
.tabs button:hover { color: var(--ink); }
.tabs button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }
#community h2 + .section-lede { margin-bottom: 2.5rem; }