/* SPDX-License-Identifier: AGPL-3.0-or-later */
/* kernoid – one page. Terminal look with one fault in it: near-black, glitch white, mint as the one accent,
   straight edges. Colours from kernoid/brand/README.md; fonts self-hosted, nothing loaded from elsewhere. */
@font-face { font-family: "Plex Mono"; src: url("assets/fonts/IBMPlexMono-Regular.ttf") format("truetype"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Plex Mono"; src: url("assets/fonts/IBMPlexMono-Bold.ttf") format("truetype"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Plex Sans"; src: url("assets/fonts/IBMPlexSans-Regular.ttf") format("truetype"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Plex Sans"; src: url("assets/fonts/IBMPlexSans-Bold.ttf") format("truetype"); font-weight: 700; font-display: swap; }

:root {
  --night: #0B0D10;
  --panel: #10141A;
  --white: #D8FFFF;
  --mint: #3DDC97;
  --steel: #5B7083;
  --reed: #7D8590;
  --line: #1C242C;
  --mono: "Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: "Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--white);
  font: 16px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  /* a faint 32 px grid, as in the social preview */
  background:
    linear-gradient(var(--line) 1px, transparent 1px) 0 0 / 32px 32px,
    linear-gradient(90deg, var(--line) 1px, transparent 1px) 0 0 / 32px 32px,
    var(--night);
  background-attachment: fixed;
}
body::before {
  /* fade the grid out below the fold so text stays calm */
  content: ""; position: fixed; inset: 0; pointer-events: none;
  background: linear-gradient(to bottom, rgba(11, 13, 16, 0.5), rgba(11, 13, 16, 0.92) 60%);
}
main, header, footer { position: relative; }
a { color: var(--mint); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
::selection { background: var(--mint); color: var(--night); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }
.dim { color: var(--reed); }
.mint { color: var(--mint); }

/* header */
header { padding: 22px 0; border-bottom: 1px solid var(--line); background: rgba(11, 13, 16, 0.85); }
header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
header img { height: 34px; display: block; }
nav { display: flex; gap: 22px; font: 14px var(--mono); }
nav a { color: var(--reed); }
nav a::before { content: "./"; color: var(--steel); }
nav a:hover { color: var(--white); text-decoration: none; }

/* hero */
.hero { padding: 80px 0 64px; }
.hero .wrap { display: grid; grid-template-columns: 1.5fr 1fr; gap: 48px; align-items: center; }
.prompt { font: 15px var(--mono); color: var(--reed); margin: 0 0 18px; }
.prompt b { color: var(--steel); font-weight: 400; }
.hero h1 { font: 700 clamp(32px, 5vw, 52px)/1.12 var(--mono); margin: 0 0 22px; letter-spacing: -0.02em; }
.hero h1 .mint::after {
  content: ""; display: inline-block; width: 0.5em; height: 0.9em; margin-left: 0.12em; vertical-align: -0.08em;
  background: var(--mint); animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .hero h1 .mint::after { animation: none; } }
.hero p { color: var(--reed); font-size: 18px; margin: 0 0 30px; max-width: 36em; }
.hero p strong { color: var(--white); font-weight: 700; }
.hero .mark { width: 100%; max-width: 340px; justify-self: center; }
.buttons { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-block; padding: 10px 18px; border: 1px solid var(--line); font: 700 14px var(--mono); color: var(--white); background: var(--panel); }
.button.primary { background: var(--mint); border-color: var(--mint); color: var(--night); }
.button:hover { text-decoration: none; border-color: var(--mint); }

/* sections */
section { padding: 64px 0; border-top: 1px solid var(--line); }
section h2 { font: 400 14px var(--mono); color: var(--reed); margin: 0 0 24px; }
section h2::before { content: "// "; color: var(--steel); }
section > .wrap > p { color: var(--reed); max-width: 46em; margin: 0 0 24px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.cell { background: var(--panel); padding: 22px; }
.cell h3 { margin: 0 0 8px; font: 700 15px var(--mono); color: var(--white); }
.cell h3::before { content: "> "; color: var(--mint); }
.cell p { margin: 0; color: var(--reed); font-size: 15px; }

/* roadmap */
.steps { list-style: none; margin: 0; padding: 0; border: 1px solid var(--line); }
.steps li { display: grid; grid-template-columns: 150px 170px 1fr; gap: 18px; padding: 16px 22px; background: var(--panel); }
.steps li + li { border-top: 1px solid var(--line); }
.steps .name { font: 700 15px var(--mono); }
.steps .when { font: 14px var(--mono); color: var(--steel); }
.steps .what { color: var(--reed); font-size: 15px; }
.steps .now .name { color: var(--mint); }
.note { color: var(--reed); font-size: 14px; margin: 14px 0 0; }

/* footer */
footer { border-top: 1px solid var(--line); padding: 26px 0 44px; color: var(--reed); font: 13px var(--mono); background: rgba(11, 13, 16, 0.9); }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
footer a { color: var(--reed); }
footer a:hover { color: var(--white); }

/* 404 */
.legal { padding: 40px 0 72px; max-width: 760px; }
.legal h1 { font: 700 30px var(--mono); margin: 0 0 24px; }
.legal p { color: var(--reed); }

@media (max-width: 760px) {
  .hero { padding-top: 48px; }
  .hero .wrap { grid-template-columns: 1fr; }
  .hero .mark { max-width: 180px; order: -1; justify-self: start; }
  nav { display: none; }
  .steps li { grid-template-columns: 1fr; gap: 4px; }
}