/* ezc site. Plain CSS, system fonts, no external resources. */
:root {
  --bg: #f0f8f3;
  --bg-alt: #e2f1e8;
  --surface: #fbfffc;
  --ink: #0e1f17;
  --muted: #44574c;
  --line: #c3dbcc;
  --accent: #0a7552;
  --accent-ink: #ffffff;
  --ok: #0a7552;
  --ok-bg: #d3f0e1;
  --warn: #8a5a00;
  --warn-bg: #fbecc8;
  --focus: #1d4ed8;
  --shadow: 0 1px 0 rgba(14, 31, 23, .04), 0 12px 32px -16px rgba(14, 31, 23, .25);

  --t-bg: #0b1511;
  --t-bar: #14221b;
  --t-ink: #e6f4ec;
  --t-dim: #86a193;
  --t-ok: #7ef0c0;
  --t-bad: #ff8372;
  --t-warn: #ffd37a;
  --t-accent: #6ee7b7;
  --t-q: #8fb8ff;

  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --maxw: 1080px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a1310;
    --bg-alt: #0f1b16;
    --surface: #13221b;
    --ink: #e8f5ee;
    --muted: #9db7a9;
    --line: #25382e;
    --accent: #6ee7b7;
    --accent-ink: #052016;
    --ok: #6ee7b7;
    --ok-bg: #11311f;
    --warn: #ffd37a;
    --warn-bg: #33270b;
    --focus: #8fb8ff;
    --shadow: 0 1px 0 rgba(255, 255, 255, .03), 0 14px 36px -16px rgba(0, 0, 0, .7);
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--sans); font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
img, svg { max-width: 100%; }
a { color: var(--accent); text-underline-offset: .18em; }
a:hover { text-decoration-thickness: 2px; }
code, pre { font-family: var(--mono); }
code { font-size: .88em; background: var(--bg-alt); border: 1px solid var(--line); padding: .08em .38em; border-radius: 5px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 4px; }
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 780px; }
.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--ink); color: var(--bg); padding: 10px 14px; border-radius: 8px; text-decoration: none; }
.skip:focus { top: 12px; }

/* header */
.site-header { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 88%, transparent); -webkit-backdrop-filter: saturate(1.4) blur(10px); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-family: var(--mono); font-weight: 700; font-size: 1.05rem; letter-spacing: -.01em; }
.brand-mark { width: 28px; height: 28px; border-radius: 7px; }
.bm-bg { fill: #0b1511; }
.bm-chev { stroke: #6ee7b7; }
.bm-bar { fill: #e6f4ec; }
.nav { list-style: none; margin: 0; padding: 0; display: flex; gap: 4px; align-items: center; }
.nav a { display: block; padding: 8px 12px; border-radius: 8px; color: var(--muted); text-decoration: none; font-size: .95rem; }
.nav a:hover { color: var(--ink); background: var(--bg-alt); }
.nav .nav-gh { color: var(--ink); border: 1px solid var(--line); }

/* hero: art on the left, copy on the right */
.hero { padding: 56px 0 48px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 44px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin: 0 0 18px; font-family: var(--mono); font-size: .8rem; color: var(--muted); border: 1px solid var(--line); background: var(--surface); padding: 5px 12px; border-radius: 999px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); }
h1 { font-size: clamp(2rem, 4.6vw, 3.2rem); line-height: 1.07; letter-spacing: -.03em; margin: 0 0 20px; font-weight: 800; text-wrap: balance; }
.hl { font-family: var(--mono); color: var(--accent); letter-spacing: -.04em; }
.lede { font-size: 1.1rem; color: var(--muted); margin: 0 0 26px; max-width: 58ch; }
.lede code { color: var(--ink); }
.install { display: flex; align-items: center; gap: 10px; max-width: 520px; background: var(--t-bg); color: var(--t-ink); border-radius: 12px; padding: 8px 8px 8px 16px; box-shadow: var(--shadow); }
.install .prompt { color: var(--t-accent); font-family: var(--mono); user-select: none; }
.install code { flex: 1; min-width: 0; background: none; border: 0; padding: 0; color: var(--t-ink); font-size: .92rem; white-space: nowrap; overflow-x: auto; }
.copy { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; font: inherit; font-size: .86rem; font-weight: 600; min-height: 40px; background: var(--t-accent); color: #052016; border: 0; border-radius: 8px; padding: 0 14px; }
.copy:hover { filter: brightness(1.08); }
.copy:focus-visible { outline-color: #fff; }
.copy.done { background: #b6ffe0; }
.fineprint { margin: 16px 0 0; color: var(--muted); font-size: .94rem; max-width: 56ch; }

.hero-art { margin: 0; }
.hero-art svg { width: 100%; height: auto; display: block; }
.a-card { fill: var(--surface); stroke: var(--line); stroke-width: 2; }
.a-line { fill: var(--line); }
.a-ext { font-family: var(--mono); font-size: 15px; font-weight: 700; fill: var(--ink); }
.a-flow { fill: none; stroke: var(--muted); stroke-width: 2; stroke-dasharray: 5 5; }
.a-pill { fill: var(--ink); }
.a-pill-t { font-family: var(--mono); font-size: 15px; font-weight: 700; fill: var(--bg); }
.a-pill-s { font-family: var(--mono); font-size: 11px; fill: var(--bg); opacity: .75; }
.a-app { fill: var(--ok-bg); stroke: var(--ok); stroke-width: 2; }
.a-app-t { font-family: var(--mono); font-size: 14px; font-weight: 700; fill: var(--ok); }
.a-app-s { font-family: var(--sans); font-size: 12px; fill: var(--ink); }
.a-cap { font-family: var(--mono); font-size: 11px; fill: var(--muted); letter-spacing: .06em; text-transform: uppercase; }

/* demo goes straight under the hero */
.section { padding: 72px 0; }
.section.alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.sec-head { display: grid; grid-template-columns: 56px 1fr; gap: 12px; margin-bottom: 34px; align-items: start; }
.sec-no { margin: 6px 0 0; font-family: var(--mono); font-size: .9rem; color: var(--accent); font-weight: 700; }
h2 { margin: 0 0 8px; font-size: clamp(1.5rem, 3vw, 2.1rem); letter-spacing: -.02em; line-height: 1.15; }
.sec-sub { margin: 0; color: var(--muted); max-width: 64ch; }
h3 { margin: 0 0 6px; font-size: 1.15rem; }

.term { background: var(--t-bg); color: var(--t-ink); border-radius: 14px; overflow: hidden; box-shadow: var(--shadow); border: 1px solid #1d3027; }
.term-top { display: flex; align-items: center; gap: 8px; padding: 10px 14px; background: var(--t-bar); border-bottom: 1px solid #1d3027; }
.tl { width: 11px; height: 11px; border-radius: 50%; background: #2c4338; }
.term-title { margin-left: 8px; font-family: var(--mono); font-size: .78rem; color: var(--t-dim); flex: 1; }
.replay { font: inherit; font-size: .78rem; cursor: pointer; color: var(--t-ink); background: transparent; border: 1px solid #3a5547; border-radius: 6px; padding: 4px 10px; }
.replay:hover { border-color: var(--t-accent); color: var(--t-accent); }
.replay:focus-visible { outline-color: #fff; }
.term-body { margin: 0; padding: 20px 22px; font-size: .92rem; line-height: 1.65; overflow-x: auto; tab-size: 2; white-space: normal; color: var(--t-ink); }
.term-body .ln { display: block; white-space: pre; }
.term-body .ln.pending { display: none; }
.term-body b { color: #fff; }
.c-ps { color: var(--t-accent); }
.c-cmd { color: #fff; font-weight: 700; }
.c-dim { color: var(--t-dim); }
.c-sel { color: var(--t-accent); font-weight: 700; }
.c-ok { color: var(--t-ok); }
.c-q { color: var(--t-q); }
.term.typing .term-body::after { content: ""; display: inline-block; width: .55em; height: 1.05em; background: var(--t-ink); vertical-align: text-bottom; animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.term-note { margin: 0; padding: 10px 22px 14px; font-size: .8rem; color: var(--t-dim); border-top: 1px solid #172a21; }

/* steps */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.step { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 22px; box-shadow: var(--shadow); }
.step-n { display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 8px; background: var(--accent); color: var(--accent-ink); font-family: var(--mono); font-weight: 700; margin-bottom: 14px; }
.step p { margin: 0 0 14px; color: var(--muted); font-size: .98rem; }
.step-code { display: block; padding: 9px 12px; background: var(--t-bg); color: var(--t-ink); border: 0; border-radius: 8px; font-size: .84rem; white-space: normal; overflow-wrap: anywhere; }

/* language cards */
.lang-grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.lang { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; box-shadow: var(--shadow); }
.lang h3 { font-family: var(--mono); font-size: 1.05rem; display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.lang .via { font-family: var(--mono); font-size: .75rem; color: var(--accent); font-weight: 600; }
.lang p { margin: 6px 0 0; color: var(--muted); font-size: .92rem; }
.lang.ride { border-style: dashed; }
.badge { display: inline-block; font-family: var(--mono); font-size: .72rem; font-weight: 700; padding: 2px 9px; border-radius: 999px; background: var(--warn-bg); color: var(--warn); }

.caveats { margin: 26px 0 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.caveats li { padding-left: 20px; position: relative; color: var(--muted); max-width: 80ch; }
.caveats li::before { content: ""; position: absolute; left: 0; top: .72em; width: 8px; height: 2px; background: var(--accent); }
.caveats strong { color: var(--ink); }

/* notes band moved below the languages */
.band { background: var(--ink); color: var(--bg); }
.band-in { display: grid; grid-template-columns: 180px 1fr; gap: 24px; padding-top: 30px; padding-bottom: 30px; align-items: start; }
.band-h { margin: 0; font-family: var(--mono); font-size: .9rem; letter-spacing: .08em; text-transform: uppercase; opacity: .9; padding-top: 4px; }
.band p { margin: 0; font-size: 1.05rem; max-width: 70ch; }
.band strong { color: #6ee7b7; }
@media (prefers-color-scheme: dark) { .band { background: var(--surface); color: var(--ink); border-block: 1px solid var(--line); } }
@media (prefers-color-scheme: light) { .band strong { color: #7ef0c0; } }

/* faq */
.faq { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; list-style: none; padding: 18px 40px 18px 0; font-weight: 600; position: relative; font-size: 1.05rem; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%); font-family: var(--mono); font-size: 1.4rem; color: var(--accent); }
details[open] summary::after { content: "\2212"; }
details p { margin: 0 0 20px; color: var(--muted); max-width: 66ch; }
summary:focus-visible { outline-offset: -2px; }

/* footer */
.site-footer { border-top: 1px solid var(--line); padding: 38px 0 48px; }
.foot { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.foot-note { margin: 12px 0 0; max-width: 52ch; color: var(--muted); font-size: .9rem; }
.foot-links { list-style: none; margin: 0; padding: 0; display: flex; gap: 20px; align-items: flex-start; }
.foot-links a { color: var(--muted); }
.foot-links a:hover { color: var(--ink); }

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-copy { order: -1; }
  .hero { padding-top: 36px; }
  .hero-art { max-width: 460px; }
  .steps { grid-template-columns: 1fr; }
  .lang-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .band-in { grid-template-columns: 1fr; gap: 8px; }
  .nav li:not(:last-child) { display: none; }
  .sec-head { grid-template-columns: 1fr; gap: 4px; }
  .section { padding: 52px 0; }
}
@media (max-width: 480px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .lang-grid { grid-template-columns: 1fr; }
  .term-body { font-size: .8rem; padding: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}