/* OOM KILLER . the BIOS setup screen of a machine that kills its biggest process.
   Layout: menu bar, a status line, one page at a time, function-key bar at the bottom. One deliberate look: VGA blue. */
:root {
  --blue: #1432b4;
  --blue-2: #1a3cc9;
  --navy: #0a1866;
  --deep: #061048;
  --gray: #c9cdd8;
  --gray-2: #a9afc2;
  --ink: #0a0d1a;
  --white: #f4f6ff;
  --dimw: #aeb9f2;
  --yellow: #ffd84a;
  --red: #ff3d3d;
  --cyan: #59e6ff;
  --green: #4cff9a;
  --display: "VT323", "Lucida Console", ui-monospace, monospace;
  --body: "Chivo", ui-sans-serif, system-ui, "Segoe UI", sans-serif;
  --mono: "Chivo Mono", ui-monospace, Consolas, monospace;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--blue);
  background-image: repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.06) 0 1px, transparent 1px 3px);
  color: var(--white);
  font: 16px/1.55 var(--body);
}
[hidden] { display: none !important; }
a { color: var(--yellow); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--yellow); outline-offset: 2px; }
code { font-family: var(--mono); font-size: 0.92em; overflow-wrap: anywhere; }
.wrap { width: 100%; max-width: 1200px; margin: 0 auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; z-index: 50; background: var(--yellow); color: var(--ink); padding: 8px 12px; }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* ---------------------------------------------------------------- menu bar */
.menubar { background: var(--gray); color: var(--ink); border-bottom: 2px solid var(--ink); position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; }
.menubar__in { display: flex; align-items: stretch; gap: 18px; min-height: 48px; }
.brand { display: flex; align-items: center; gap: 10px; font: 30px/1 var(--display); color: var(--ink); text-decoration: none; letter-spacing: 0.04em; white-space: nowrap; }
.brand__mark { flex: none; }
.brand__mark rect[fill="#f4f6ff"] { fill: var(--ink); }
.tabs { display: flex; align-items: stretch; flex: 1; min-width: 0; overflow-x: auto; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tabs a { display: flex; align-items: center; padding: 0 14px; color: var(--ink); text-decoration: none; font: 600 14px var(--body); white-space: nowrap; }
.tabs a:hover { background: var(--gray-2); }
.tabs a[aria-current="page"] { background: var(--blue); color: var(--white); }
.walletbox { display: flex; align-items: center; gap: 8px; }
.xlink { display: flex; align-items: center; padding: 0 12px; color: var(--ink); text-decoration: none; font: 26px/1 var(--display); }
.xlink:hover { background: var(--gray-2); }
.keys a { color: #1a2a8a; }

/* ---------------------------------------------------------------- status line */
.status { background: var(--navy); border-bottom: 1px solid #2b3a9a; font: 13px/1.4 var(--mono); }
.status__in { display: flex; flex-wrap: wrap; gap: 6px 26px; padding-block: 9px; align-items: center; }
.status b { color: var(--cyan); font-weight: 600; margin-right: 6px; }
.status .warn { color: var(--yellow); }
.membar { letter-spacing: -0.04em; }
.membar i { font-style: normal; color: var(--green); }
.membar i.hot { color: var(--red); }

.killbar { background: var(--red); color: var(--ink); font: 22px/1.2 var(--display); overflow: hidden; white-space: nowrap; }
.killbar span { display: inline-block; padding: 6px 0; animation: crawl 14s linear forwards; }
@keyframes crawl { from { transform: translateX(100vw); } to { transform: translateX(-100%); } }

main { flex: 1; padding-block: 28px 56px; }

/* ---------------------------------------------------------------- BIOS boxes */
.box { border: 4px double var(--white); padding: 18px 20px; position: relative; min-width: 0; }
.box > h2, .box > h3 { position: absolute; top: -0.85em; left: 14px; margin: 0; padding: 0 8px; background: var(--blue); font: 22px/1.2 var(--display); letter-spacing: 0.04em; color: var(--white); }
.box.gray { background: var(--gray); color: var(--ink); border-color: var(--ink); }
.box.gray > h2, .box.gray > h3 { background: var(--gray); color: var(--ink); }
.box.gray a { color: var(--blue); }
.box.red { border-color: var(--red); }
.box.red > h2, .box.red > h3 { color: var(--red); }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 30px 24px; }
.grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px 24px; }
.stack { display: grid; gap: 30px; }

/* ---------------------------------------------------------------- home */
.hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 34px; align-items: start; }
.hero h1 { margin: 0; font: clamp(64px, 11vw, 138px)/0.82 var(--display); letter-spacing: -0.01em; text-wrap: balance; }
.hero h1 em { font-style: normal; color: var(--red); }
.hero .lede { font-size: 19px; max-width: 34ch; margin: 18px 0 0; }
.hero .pitch { font: 26px/1.15 var(--display); color: var(--yellow); margin: 18px 0 0; }
.ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.mapbox { padding: 16px; }
.mapcanvas { display: block; width: 100%; height: auto; aspect-ratio: 1 / 1; }
.maplegend { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 12px; font: 12px var(--mono); color: var(--dimw); }
.maplegend span::before { content: ""; display: inline-block; width: 10px; height: 10px; margin-right: 6px; vertical-align: -1px; background: var(--c); }
.mapempty { position: absolute; inset: 16px; display: grid; place-items: center; text-align: center; font: 26px/1.2 var(--display); color: var(--dimw); padding: 20px; }
.tip { position: fixed; z-index: 40; pointer-events: none; background: var(--gray); color: var(--ink); border: 2px solid var(--ink); font: 12px/1.5 var(--mono); padding: 6px 9px; }

.rules3 { margin-top: 44px; }
.rule__k { font: 28px/1 var(--display); color: var(--yellow); display: block; margin-bottom: 8px; }
.rule p { margin: 0; max-width: 46ch; }

.readout { margin-top: 44px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 0; }
.stat { padding: 12px 14px 12px 0; }
.stat small { display: block; font: 11px var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--dimw); }
.box.gray .stat small { color: #3b4260; }
.stat strong { font: 34px/1.1 var(--display); }

/* ---------------------------------------------------------------- buttons, inputs */
.btn { appearance: none; border: 2px solid var(--white); background: var(--white); color: var(--blue); font: 22px/1 var(--display); letter-spacing: 0.04em; padding: 10px 18px; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; }
.btn:hover { background: var(--yellow); border-color: var(--yellow); color: var(--ink); }
.btn.ghost { background: transparent; color: var(--white); }
.btn.ghost:hover { color: var(--ink); }
.btn.red { background: var(--red); border-color: var(--red); color: var(--ink); }
.btn.small { font-size: 18px; padding: 6px 12px; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; background: var(--gray-2); border-color: var(--gray-2); color: var(--ink); }
.btn.ink { background: var(--ink); border-color: var(--ink); color: var(--white); }
.field { display: grid; gap: 6px; margin-bottom: 14px; }
.field label { font: 12px var(--mono); letter-spacing: 0.1em; text-transform: uppercase; }
.field input[type=text], .field input[type=number] { font: 20px var(--mono); padding: 8px 10px; border: 2px solid var(--ink); background: var(--white); color: var(--ink); width: 100%; min-width: 0; }
.field input[type=range] { width: 100%; accent-color: var(--blue); }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.seg { display: inline-flex; border: 2px solid var(--ink); }
.seg button { appearance: none; border: 0; background: transparent; font: 600 13px var(--body); padding: 6px 12px; cursor: pointer; color: var(--ink); }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--white); }
.msg { font: 13px/1.5 var(--mono); margin-top: 10px; min-height: 1.5em; overflow-wrap: anywhere; }
.msg.bad { color: #b3001b; }
.msg.ok { color: #005f2e; }
.preview { font: 14px/1.6 var(--mono); border-top: 2px dashed var(--ink); padding-top: 10px; margin-top: 4px; }
.preview .kill { color: #b3001b; font-weight: 600; }

/* ---------------------------------------------------------------- tables */
.tablewrap { overflow-x: auto; max-width: 100%; position: relative; }
table { border-collapse: collapse; width: 100%; font: 13px/1.5 var(--mono); font-variant-numeric: tabular-nums; }
th { background: var(--cyan); color: var(--ink); text-align: right; padding: 4px 10px; white-space: nowrap; font-weight: 600; position: sticky; top: 0; }
td { padding: 3px 10px; text-align: right; white-space: nowrap; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
th.l, td.l { text-align: left; }
td.wrapcell { white-space: normal; }
tr.victim td { color: var(--red); }
tr.mine td { background: rgba(255, 216, 74, 0.16); }
.tag { font: 11px var(--mono); padding: 1px 6px; border: 1px solid currentColor; margin-left: 6px; }
.tall { max-height: 640px; overflow: auto; }

/* ---------------------------------------------------------------- dmesg */
.dmesg { font: 13px/1.65 var(--mono); }
.dmesg div { padding: 3px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.07); overflow-wrap: anywhere; }
.dmesg .t { color: var(--dimw); margin-right: 10px; }
.dmesg .kill { color: var(--red); }
.dmesg .free { color: var(--dimw); }
.dmesg .malloc { color: var(--green); }
.dmesg .reboot { color: var(--yellow); }
.dmesg .claim { color: var(--cyan); }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.filters button { appearance: none; border: 2px solid var(--white); background: transparent; color: var(--white); font: 600 13px var(--body); padding: 5px 12px; cursor: pointer; }
.filters button[aria-pressed="true"] { background: var(--white); color: var(--blue); }

/* ---------------------------------------------------------------- manual */
.man { font: 15px/1.65 var(--mono); max-width: 92ch; }
.man h2 { font: 30px/1 var(--display); color: var(--yellow); margin: 34px 0 10px; letter-spacing: 0.04em; }
.man h2:first-child { margin-top: 0; }
.man p, .man li { max-width: 80ch; }
.man .head { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; border-bottom: 2px solid var(--white); padding-bottom: 8px; margin-bottom: 18px; font: 22px var(--display); }
.man dt { color: var(--cyan); margin-top: 12px; }
.man dd { margin: 4px 0 0 24px; }

/* ---------------------------------------------------------------- banner, keys */
.banner { border: 4px double var(--yellow); color: var(--yellow); padding: 14px 18px; margin-bottom: 28px; font: 15px/1.5 var(--mono); }
.banner b { font: 26px/1.1 var(--display); display: block; letter-spacing: 0.04em; }
.keys { background: var(--gray); color: var(--ink); border-top: 2px solid var(--ink); font: 13px var(--mono); }
.keys__in { display: flex; flex-wrap: wrap; gap: 4px 18px; padding-block: 7px; padding-bottom: max(7px, env(safe-area-inset-bottom, 0px)); }
.keys b { background: var(--ink); color: var(--gray); padding: 0 5px; margin-right: 4px; }
.keys__x { margin-left: auto; color: #3b4260; }
.blink { animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0.25; } }

@media (max-width: 560px) {
  .hs { display: none; }
  th, td { padding-left: 6px; padding-right: 6px; }
}
@media (max-width: 900px) {
  .hero, .grid2, .grid3 { grid-template-columns: 1fr; }
  .menubar__in { flex-wrap: wrap; gap: 0 12px; }
  .tabs { order: 3; flex-basis: 100%; }
  .brand { min-height: 44px; }
  .walletbox { margin-left: auto; }
  .keys__x { margin-left: 0; flex-basis: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .killbar span, .blink { animation: none; }
}