/* SPDX-License-Identifier: LicenseRef-Proprietary
   Copyright (c) 2026 Kesto Systems Oy. All rights reserved. */
/* Fonts served from this site (SIL Open Font License 1.1, /fonts/OFL-*.txt): no third-party request. */
@font-face { font-family: "Archivo"; src: url("../fonts/archivo.woff2") format("woff2"); font-weight: 300 800; font-stretch: 62% 125%; font-display: swap; }
@font-face { font-family: "Source Sans 3"; src: url("../fonts/source-sans-3.woff2") format("woff2"); font-weight: 200 900; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("../fonts/jetbrains-mono.woff2") format("woff2"); font-weight: 100 800; font-display: swap; }
body { margin: 0; }
img { max-width: 100%; }
[hidden] { display: none !important; }
.note { color: var(--muted); font-size: 14px; }
.sprite { position: absolute; }
.col28 { display: grid; gap: 28px; align-content: start; }
/* Layout: the Kesto Systems site's system. The page is built like the Gavial mark, a stack of three layers:
   guest on top, Gavial in olive in the middle, the Linux host underneath. A dark hero band, paper sections, one dark band for the stack. */
:root {
  --bg: #f3f4f0;
  --surface: #ffffff;
  --ink: #17201d;
  --muted: #56605a;
  --line: #d3d8d1;
  --accent: #4f6b2c;
  --accent-ink: #ffffff;
  --accent-soft: #e4ebd8;
  --band: #17201d;
  --band-2: #1f2a25;
  --band-ink: #eef1ea;
  --band-muted: #a2aca5;
  --band-accent: #a9c77e;
  --band-line: #2c3631;
  --term: #101614;
  --term-ink: #d7ded6;
  --term-dim: #7d877f;
  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --body: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #121715; --surface: #1a201d; --ink: #e8ece7; --muted: #a2aca5; --line: #2f3833;
    --accent: #a9c77e; --accent-ink: #17201d; --accent-soft: #263020;
    --band: #0c100e; --band-2: #151c18; --band-ink: #eef1ea; --band-muted: #9aa49d; --band-accent: #a9c77e; --band-line: #26302b;
    --term: #0a0d0c; --term-ink: #d7ded6; --term-dim: #7d877f; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #121715; --surface: #1a201d; --ink: #e8ece7; --muted: #a2aca5; --line: #2f3833;
  --accent: #a9c77e; --accent-ink: #17201d; --accent-soft: #263020;
  --band: #0c100e; --band-2: #151c18; --band-ink: #eef1ea; --band-muted: #9aa49d; --band-accent: #a9c77e; --band-line: #26302b;
  --term: #0a0d0c; --term-ink: #d7ded6; --term-dim: #7d877f; color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { background: var(--bg); color: var(--ink); font: 17px/1.6 var(--body); }
.in { max-width: 1120px; margin: 0 auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
a { color: var(--accent); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }
h1, h2, h3 { font-family: var(--display); text-wrap: balance; margin: 0; }
p { margin: 0; }
.eyebrow { font: 600 12px/1.2 var(--display); letter-spacing: .16em; text-transform: uppercase; color: var(--accent); }
code { font: 14px var(--mono); background: var(--accent-soft); padding: 1px 5px; border-radius: 4px; overflow-wrap: anywhere; }
h2 { font-size: clamp(26px, 3.6vw, 36px); line-height: 1.15; font-weight: 650; }
.mark { display: block; color: var(--ink); --mark-acc: var(--accent); }
.m-up { fill: var(--mark-acc); }
.m-lo, .m-gh { fill: currentColor; }

/* header */
header.top { border-bottom: 1px solid var(--line); background: var(--bg); }
header.top .in { display: flex; align-items: center; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap; padding-block: 14px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.brand .mark { width: 76px; height: 28px; }
.brand b { font: 700 26px/1 var(--display); font-stretch: 108%; letter-spacing: -.02em; }
.brand small { font: 500 12px/1 var(--display); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); padding-left: 12px; border-left: 1px solid var(--line); }
nav { display: flex; gap: 4px 20px; flex-wrap: wrap; }
nav a { color: var(--ink); text-decoration: none; font: 500 15px var(--display); padding-block: 8px; }
nav a:hover { color: var(--accent); }

/* hero */
.hero { background: var(--band); color: var(--band-ink); }
.hero .in { padding-block: 64px 56px; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 48px; align-items: center; }
.hero .eyebrow { color: var(--band-accent); }
.hero h1 { font-size: clamp(36px, 5.4vw, 60px); line-height: 1.04; font-weight: 750; font-stretch: 108%; letter-spacing: -.015em; margin-block: 16px 20px; }
.hero .lede { font-size: 19px; color: var(--band-muted); max-width: 54ch; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center; margin-top: 28px; }
.btn { display: inline-flex; align-items: center; min-height: 46px; padding: 0 20px; border-radius: 8px; font: 600 15px var(--display); text-decoration: none; }
.btn.primary { background: var(--band-accent); color: var(--band); }
.btn.primary:hover { background: var(--band-ink); }
.hero .actions a.text { color: var(--band-ink); font: 500 15px var(--display); }
.hero-art { display: grid; gap: 18px; justify-items: center; min-width: 0; }
.hero-art .mark { width: 100%; max-width: 520px; height: auto; aspect-ratio: 900 / 330; color: var(--band-ink); --mark-acc: var(--band-accent); }
.hero-art .word { font: 700 clamp(56px, 8vw, 92px)/1 var(--display); font-stretch: 108%; letter-spacing: -.02em; }
.hero-art .tag { font: 500 13px/1.4 var(--mono); color: var(--band-muted); text-align: center; padding-top: 12px; border-top: 3px solid var(--band-accent); width: min(100%, 420px); }
.facts { border-top: 1px solid var(--band-line); }
.facts .in { padding-block: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.facts div { padding: 18px 20px 20px 0; display: grid; gap: 2px; min-width: 0; }
.facts div + div { padding-left: 20px; border-left: 1px solid var(--band-line); }
.facts b { font: 650 18px/1.25 var(--display); color: var(--band-ink); }
.facts span { font-size: 14.5px; color: var(--band-muted); }

/* paper sections */
section.paper .in { padding-block: 72px; display: grid; gap: 32px; }
section.paper + section.paper .in { border-top: 1px solid var(--line); }
.head { display: grid; gap: 14px; max-width: 66ch; }
.head p { color: var(--muted); }
.two { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; align-items: start; }

/* the stack */
.stack { display: grid; gap: 8px; min-width: 0; }
.layer { border-radius: 12px; padding: 20px 22px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 6px 18px; align-items: start; }
.layer h3 { font-size: 19px; font-weight: 650; }
.layer p { font-size: 15.5px; grid-column: 1 / -1; }
.layer .who { font: 500 12px/1.6 var(--mono); white-space: nowrap; }
.layer.guest { background: var(--surface); border: 1px solid var(--line); margin-inline: 9%; }
.layer.guest p, .layer.guest .who { color: var(--muted); }
.layer.gavial { background: var(--accent); color: var(--accent-ink); margin-inline: 4.5%; }
.layer.gavial p, .layer.gavial .who { color: var(--accent-ink); opacity: .86; }
.layer.host { background: var(--band); color: var(--band-ink); }
.layer.host p, .layer.host .who { color: var(--band-muted); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; grid-column: 1 / -1; margin-top: 6px; padding: 0; list-style: none; }
.chips li { font: 500 12.5px/1 var(--mono); padding: 6px 8px; border-radius: 6px; background: rgba(255,255,255,.14); }
.layer.guest .chips li { background: var(--accent-soft); color: var(--ink); }
.points { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; }
.points li { padding: 16px 0; border-top: 1px solid var(--line); display: grid; gap: 4px; }
.points li:last-child { border-bottom: 1px solid var(--line); }
.points b { font: 600 16px var(--display); }
.points span { color: var(--muted); font-size: 16px; }

/* features */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.grid > div { background: var(--surface); padding: 22px 22px 24px; min-width: 0; }
.grid h3 { font-size: 17px; font-weight: 650; margin-bottom: 10px; }
.grid ul { margin: 0; padding-left: 18px; display: grid; gap: 6px; color: var(--muted); font-size: 15.5px; }

/* ways in */
.ways { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.way { border: 1px solid var(--line); border-radius: 12px; padding: 22px; display: grid; gap: 10px; align-content: start; background: var(--surface); }
.way h3 { font-size: 18px; font-weight: 650; }
.way p { color: var(--muted); font-size: 15.5px; }
.way .src { font: 500 12.5px var(--mono); color: var(--accent); }
.badge { font: 600 11px/1 var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--accent); border: 1px solid var(--accent); border-radius: 999px; padding: 5px 8px; width: fit-content; }

/* operations band */
.ops { background: var(--band); color: var(--band-ink); }
.ops .in { padding-block: 72px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 48px; align-items: center; }
.ops .eyebrow { color: var(--band-accent); }
.ops h2 { margin-block: 14px 16px; }
.ops p { color: var(--band-muted); max-width: 56ch; }
.ops ul { margin: 18px 0 0; padding-left: 18px; display: grid; gap: 6px; color: var(--band-muted); }
.ops code { background: var(--band-2); color: var(--term-ink); }
.term { background: var(--term); border: 1px solid var(--band-line); border-radius: 10px; overflow: hidden; min-width: 0; }
.term .bar { font: 500 12px var(--mono); color: var(--term-dim); padding: 10px 14px; border-bottom: 1px solid var(--band-line); display: flex; justify-content: space-between; gap: 12px; }
.term pre { margin: 0; padding: 16px 14px 18px; font: 13.5px/1.65 var(--mono); color: var(--term-ink); overflow-x: auto; }
.term .p, .term .ok { color: var(--band-accent); }
.term .dim { color: var(--term-dim); }

/* hardware */
.hw { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 32px; align-items: start; }
.hw .body { display: grid; gap: 14px; color: var(--muted); max-width: 62ch; }
.hw .body b { color: var(--ink); font-weight: 600; }
dl.spec { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 0 20px; margin: 0; border: 1px solid var(--line); border-radius: 12px; padding: 6px 20px; background: var(--surface); }
dl.spec dt, dl.spec dd { padding: 11px 0; margin: 0; }
dl.spec dt + dd ~ dt, dl.spec dt + dd ~ dd { border-top: 1px solid var(--line); }
dl.spec dt { font: 600 14px var(--display); color: var(--muted); }
dl.spec dd { font-variant-numeric: tabular-nums; }

/* roadmap */
.scope { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 32px; }
.scope h3 { font: 600 13px/1 var(--display); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; }
.scope ul { margin: 0; padding: 0; list-style: none; }
.scope li { display: flex; justify-content: space-between; gap: 16px; padding: 11px 0; border-top: 1px solid var(--line); font-size: 16px; }
.scope li:last-child { border-bottom: 1px solid var(--line); }
.scope li span:last-child { font: 500 13px var(--mono); color: var(--muted); white-space: nowrap; }

/* contact */
.cta { background: var(--accent-soft); }
.cta .in { padding-block: 64px; display: grid; gap: 18px; }
.cta p { color: var(--muted); max-width: 62ch; }
.copy { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.copy .addr { font: 500 18px var(--mono); user-select: all; overflow-wrap: anywhere; }
.copy button { font: 600 14px var(--display); color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 10px 14px; min-height: 44px; cursor: pointer; }
.copy button:hover { border-color: var(--accent); }

footer { border-top: 1px solid var(--line); }
footer .in { padding-block: 26px 40px; display: grid; gap: 8px; font-size: 13.5px; color: var(--muted); }

@media (max-width: 880px) {
  .hero .in, .two, .ops .in, .hw { grid-template-columns: minmax(0, 1fr); gap: 36px; }
  .hero .in { padding-block: 44px 40px; }
  .hero-art { order: -1; }
  .ways { grid-template-columns: minmax(0, 1fr); }
  .facts .in { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts div:nth-child(3) { padding-left: 0; border-left: 0; }
  .facts div:nth-child(n+3) { border-top: 1px solid var(--band-line); }
  section.paper .in, .ops .in { padding-block: 56px; }
  .layer.guest { margin-inline: 6%; }
  .layer.gavial { margin-inline: 3%; }
}
@media (max-width: 460px) {
  .brand small { display: none; }
  .layer { grid-template-columns: minmax(0, 1fr); }
  .layer .who { white-space: normal; }
}