/* utf-8x.evemisslab.com — one stylesheet, no dependencies.
   Signature colour: olive. Hue 72 is the largest free gap in the EveMissLab
   family, between Logic Matrix at 39 and MS3E at 154.
   Warm paper in light, ink in dark, per the EveMissLab family convention. */

:root {
  --paper: #f7f6f2;
  --paper-2: #fffefc;
  --paper-3: #eceae3;
  --ink: #14181a;
  --ink-2: #3e454a;
  --ink-3: #6a7176;
  --rule: #d9d6cd;
  --rule-2: #c5c2b8;
  --accent: #5c6b1f;
  --accent-2: #414d15;
  --accent-wash: #eef0e2;
  --mono: ui-monospace, "Cascadia Mono", "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  --sans: "Inter", "Segoe UI", system-ui, -apple-system, "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  --serif: "Iowan Old Style", "Source Serif 4", Georgia, "Noto Serif TC", serif;
  --radius: 10px;
  --wrap: 1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #141617;
    --paper-2: #1b1e20;
    --paper-3: #24282a;
    --ink: #e9e8e3;
    --ink-2: #b6b6b0;
    --ink-3: #8a8b86;
    --rule: #2e3234;
    --rule-2: #3c4144;
    --accent: #b9cc72;
    --accent-2: #cfdda0;
    --accent-wash: #252a16;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.65;
}

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 22px; }
.wrap.wide { max-width: 1400px; }

a { color: var(--accent); text-decoration-color: color-mix(in srgb, var(--accent) 35%, transparent); text-underline-offset: .18em; }
a:hover { color: var(--accent-2); }
code { font: 500 .89em/1.5 var(--mono); background: var(--paper-3); padding: .1em .38em; border-radius: 4px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.skip { position: absolute; left: -9999px; top: 0; z-index: 100; background: var(--accent); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0; }
.skip:focus { left: 0; }

/* ---------------------------------------------------------------- topbar */

.topbar { position: sticky; top: 0; z-index: 40; background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: saturate(150%) blur(10px); border-bottom: 1px solid var(--rule); }
.topbar .inner { display: flex; align-items: center; gap: 16px; min-height: 58px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; text-decoration: none; color: var(--ink); letter-spacing: -.01em; }
.brand .mark { width: 26px; height: 26px; border-radius: 6px; display: grid; place-items: center; background: var(--accent); color: #fff; font: 700 15px/1 var(--sans); }
@media (prefers-color-scheme: dark) { .brand .mark { color: #1a1e11; } }
.brand small { display: block; font: 400 11px/1.2 var(--sans); color: var(--ink-3); letter-spacing: .02em; }
.nav { display: flex; gap: 2px; margin-left: auto; flex-wrap: wrap; }
.nav a { padding: 6px 10px; border-radius: 7px; font-size: 14px; text-decoration: none; color: var(--ink-2); }
.nav a:hover { background: var(--paper-3); color: var(--ink); }
.nav a[aria-current="page"] { color: var(--accent); background: var(--accent-wash); }
.langswitch { font: 500 13px/1 var(--mono); padding: 6px 9px; border: 1px solid var(--rule-2); border-radius: 7px; text-decoration: none; color: var(--ink-2); }
.langswitch:hover { border-color: var(--accent); color: var(--accent); }

/* ---------------------------------------------------------------- hero */

.hero { padding: 64px 0 34px; }
.eyebrow { font: 600 12px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
h1 { font: 700 clamp(30px, 5vw, 48px)/1.14 var(--sans); letter-spacing: -.025em; margin: 16px 0 0; max-width: 22ch; }
h1 em { font-style: normal; color: var(--accent); }
.lead { font-size: clamp(17px, 2.1vw, 19.5px); color: var(--ink-2); max-width: 68ch; margin: 18px 0 0; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }

.btn { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; padding: 10px 16px; border-radius: 8px; border: 1px solid var(--rule-2); background: var(--paper-2); color: var(--ink); font: 500 14.5px/1 var(--sans); text-decoration: none; transition: border-color .15s, background .15s; }
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-2); border-color: var(--accent-2); color: #fff; }
@media (prefers-color-scheme: dark) { .btn.primary, .btn.primary:hover { color: #1a1e11; } }

/* ---------------------------------------------------------------- sections */

section { padding: 34px 0; }
section.tinted { background: var(--paper-2); border-block: 1px solid var(--rule); }
h2 { font: 700 clamp(21px, 3vw, 28px)/1.25 var(--sans); letter-spacing: -.02em; margin: 0 0 14px; }
h3 { font: 650 17.5px/1.4 var(--sans); margin: 26px 0 8px; }
p { margin: 0 0 14px; max-width: 74ch; }
.prose > :last-child { margin-bottom: 0; }
.note { color: var(--ink-3); font-size: 15px; max-width: 74ch; }

/* ---------------------------------------------------------------- stats */

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 30px 0 0; }
.stat { background: var(--paper-2); border: 1px solid var(--rule); border-radius: var(--radius); padding: 16px 18px; }
.stat b { display: block; font: 700 clamp(21px, 3vw, 27px)/1.1 var(--sans); letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.stat span { display: block; font-size: 13px; color: var(--ink-3); margin-top: 5px; }
@media (max-width: 720px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* ---------------------------------------------------------------- layers */

.layers { display: grid; gap: 8px; margin-top: 20px; counter-reset: layer; }
.layer { display: grid; grid-template-columns: 58px 1fr; gap: 16px; align-items: baseline; background: var(--paper-2); border: 1px solid var(--rule); border-left: 3px solid var(--accent); border-radius: var(--radius); padding: 15px 18px; }
.layer > b { font: 700 15px/1.3 var(--mono); color: var(--accent); }
.layer h4 { margin: 0 0 3px; font: 650 15.5px/1.4 var(--sans); }
.layer p { margin: 0; font-size: 14.5px; color: var(--ink-2); max-width: 68ch; }
@media (max-width: 560px) { .layer { grid-template-columns: 1fr; gap: 4px; } }

/* ---------------------------------------------------------------- steps */

.steps { display: grid; gap: 6px; margin-top: 20px; counter-reset: step; padding: 0; list-style: none; }
.steps li { display: grid; grid-template-columns: 30px 1fr; gap: 14px; align-items: baseline; padding: 11px 14px; border-radius: 8px; background: var(--paper-2); border: 1px solid var(--rule); }
.steps li::before { counter-increment: step; content: counter(step, decimal-leading-zero); font: 600 12px/1.5 var(--mono); color: var(--accent); }
.steps b { display: block; font: 650 15px/1.5 var(--sans); }
.steps span { display: block; font-size: 14.5px; color: var(--ink-2); }

/* ---------------------------------------------------------------- table/chips */

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 16px 0 0; padding: 0; list-style: none; }
.chips li { font: 500 12.5px/1 var(--mono); padding: 8px 11px; border-radius: 6px; background: var(--accent-wash); color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent); }

.checklist { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 8px; }
.checklist li { display: flex; gap: 11px; align-items: baseline; font-size: 15px; color: var(--ink-2); max-width: 80ch; }
.checklist li::before { content: "—"; color: var(--accent); font-family: var(--mono); flex: none; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; margin-top: 20px; }
.card { background: var(--paper-2); border: 1px solid var(--rule); border-radius: var(--radius); padding: 17px 19px; }
.card h3 { margin: 0 0 6px; font-size: 15.5px; }
.card p { font-size: 14.5px; color: var(--ink-2); margin: 0; }
.card .tag { display: inline-block; font: 600 11px/1 var(--mono); color: var(--accent); background: var(--accent-wash); padding: 5px 7px; border-radius: 5px; margin-bottom: 9px; }

/* ---------------------------------------------------------------- runtime embed */

.stage-frame { border: 1px solid var(--rule); border-radius: var(--radius); overflow: hidden; background: var(--paper-2); margin-top: 22px; }
.stage-frame iframe { display: block; width: 100%; height: min(78vh, 900px); border: 0; }
.stage-bar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; padding: 10px 14px; border-bottom: 1px solid var(--rule); font: 500 12.5px/1 var(--mono); color: var(--ink-3); }
.stage-bar a { text-decoration: none; }

.scenegrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 10px; margin-top: 18px; }
.scenegrid a { display: block; padding: 15px 17px; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--paper-2); text-decoration: none; color: var(--ink); }
.scenegrid a:hover { border-color: var(--accent); }
.scenegrid b { display: block; font-size: 15px; }
.scenegrid span { display: block; font: 500 12px/1.6 var(--mono); color: var(--ink-3); margin-top: 4px; }

/* ---------------------------------------------------------------- footer */

.footer { border-top: 1px solid var(--rule); margin-top: 44px; padding: 24px 0 40px; }
.footer .inner { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; font-size: 14px; color: var(--ink-3); }
.footer a { color: var(--ink-3); }
.footer a:hover { color: var(--accent); }