/* Syndicate Protocol brand layer: palette, fonts and base devices.
   This file is the constant part. Every page on the site (the landing page, the
   privacy page, each dev log entry) loads it; everything else is per page.
   Colors are RGB triplets so CSS (rgb(var(--ink) / .3)) and canvas read the same tokens.
   Day = paper grey, graphite, orange signal. Nite = black, bone, yellow signal.
   Signal = a person acts. ok / hot = status. */

@font-face { font-family: "Michroma"; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/michroma-400.woff2") format("woff2"); }
@font-face { font-family: "Barlow"; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/barlow-400.woff2") format("woff2"); }
@font-face { font-family: "Barlow"; font-style: normal; font-weight: 500; font-display: swap; src: url("../fonts/barlow-500.woff2") format("woff2"); }
@font-face { font-family: "Barlow"; font-style: normal; font-weight: 600; font-display: swap; src: url("../fonts/barlow-600.woff2") format("woff2"); }
/* one variable file serves both weights */
@font-face { font-family: "Martian Mono"; font-style: normal; font-weight: 300 500; font-display: swap; src: url("../fonts/martian-mono.woff2") format("woff2"); }

:root {
  --bg: 231 234 237;
  --panel: 243 245 246;
  --ink: 33 37 41;
  --ink-2: 92 99 106;
  --signal: 255 82 20;
  --on-signal: 255 255 255;
  --hot: 222 48 28;
  --ok: 28 124 82;
  --f-display: "Michroma", "Eurostile", "Microgramma", "Arial Black", sans-serif;
  --f-body: "Barlow", "Helvetica Neue", Arial, sans-serif;
  --f-data: "Martian Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --gut: clamp(16px, 4vw, 56px);
  --max: 1240px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: 11 12 13; --panel: 21 23 24; --ink: 229 229 223; --ink-2: 140 144 146;
    --signal: 243 208 30; --on-signal: 14 14 12; --hot: 255 70 48; --ok: 96 214 142;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: 11 12 13; --panel: 21 23 24; --ink: 229 229 223; --ink-2: 140 144 146;
  --signal: 243 208 30; --on-signal: 14 14 12; --hot: 255 70 48; --ok: 96 214 142;
  color-scheme: dark;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { background: rgb(var(--bg)); scroll-behavior: smooth; scroll-padding-top: 64px; }
body {
  margin: 0;
  background: rgb(var(--bg));
  color: rgb(var(--ink));
  font: 400 17px/1.55 var(--f-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(circle, rgb(var(--ink) / .2) 1px, transparent 1.4px) 0 0 / 40px 40px,
    linear-gradient(rgb(var(--ink) / .045) 1px, transparent 1px) 0 0 / 160px 160px,
    linear-gradient(90deg, rgb(var(--ink) / .045) 1px, transparent 1px) 0 0 / 160px 160px;
}
::selection { background: rgb(var(--signal)); color: rgb(var(--on-signal)); }
:focus-visible { outline: 2px solid rgb(var(--signal)); outline-offset: 3px; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; }
[hidden] { display: none !important; }

.wrap { max-width: var(--max); margin-inline: auto; padding-inline: var(--gut); }
.mono { font-family: var(--f-data); font-variant-numeric: tabular-nums; }
.skip { position: absolute; left: 8px; top: -60px; z-index: 50; padding: 8px 12px; background: rgb(var(--signal)); color: rgb(var(--on-signal)); font: 500 12px var(--f-data); }
.skip:focus { top: 8px; }

/* Corner brackets: the panel device. */
.brk {
  --c: rgb(var(--ink) / .7);
  background:
    linear-gradient(var(--c), var(--c)) top left / 14px 1px no-repeat,
    linear-gradient(var(--c), var(--c)) top left / 1px 14px no-repeat,
    linear-gradient(var(--c), var(--c)) top right / 14px 1px no-repeat,
    linear-gradient(var(--c), var(--c)) top right / 1px 14px no-repeat,
    linear-gradient(var(--c), var(--c)) bottom left / 14px 1px no-repeat,
    linear-gradient(var(--c), var(--c)) bottom left / 1px 14px no-repeat,
    linear-gradient(var(--c), var(--c)) bottom right / 14px 1px no-repeat,
    linear-gradient(var(--c), var(--c)) bottom right / 1px 14px no-repeat,
    rgb(var(--panel) / .78);
}

/* ---------- Type ---------- */
h1 { margin: 0; font: 400 clamp(25px, 3.4vw, 46px)/1.16 var(--f-display); letter-spacing: -.01em; text-wrap: balance; }
h2 { margin: 0; font: 400 clamp(22px, 2.7vw, 36px)/1.22 var(--f-display); letter-spacing: -.005em; text-wrap: balance; }
h3 { margin: 0; font: 400 13px/1.35 var(--f-display); letter-spacing: .04em; }
.sig { color: rgb(var(--signal)); }
.eyebrow {
  margin: 0; display: flex; align-items: center; gap: 10px;
  font: 500 11px/1.4 var(--f-data); letter-spacing: .16em; text-transform: uppercase; color: rgb(var(--ink-2));
}
.eyebrow::before { content: ""; width: 18px; height: 2px; background: rgb(var(--signal)); flex: none; }

/* ---------- Shared bits ---------- */
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; padding-top: 4px; }
@keyframes blink { 50% { opacity: 0; } }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { padding: 5px 8px; border: 1px solid rgb(var(--ink) / .35); font: 500 10.5px/1 var(--f-data); letter-spacing: .1em; text-transform: uppercase; }
kbd { font: inherit; padding: 1px 5px; border: 1px solid rgb(var(--ink) / .35); color: rgb(var(--ink)); }

.btn {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 13px 18px; border: 1px solid rgb(var(--ink) / .55);
  font: 500 11.5px/1 var(--f-data); letter-spacing: .14em; text-transform: uppercase;
  text-decoration: none; color: rgb(var(--ink)); background: rgb(var(--bg) / .4);
  transition: background .18s, color .18s, border-color .18s;
}
.btn::after { content: ""; width: 6px; height: 6px; border-top: 1.5px solid currentColor; border-right: 1.5px solid currentColor; transform: rotate(45deg); }
.btn:hover { background: rgb(var(--ink)); color: rgb(var(--bg)); border-color: rgb(var(--ink)); }
.btn-signal { background: rgb(var(--signal)); color: rgb(var(--on-signal)); border-color: rgb(var(--signal)); }
.btn-sm { padding: 9px 12px; font-size: 10.5px; }
.btn[disabled] { opacity: .5; cursor: progress; }

/* ---------- Top bar ---------- */
.bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 30;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: calc(env(safe-area-inset-top, 0px) + 12px) var(--gut) 12px;
  font: 500 11px/1 var(--f-data); letter-spacing: .12em; text-transform: uppercase;
  background: linear-gradient(rgb(var(--bg) / .94), rgb(var(--bg) / .7) 70%, rgb(var(--bg) / 0));
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 400 13px/1 var(--f-display); letter-spacing: .26em; white-space: nowrap; }
.brand svg { width: 22px; height: 22px; stroke: rgb(var(--ink)); fill: none; flex: none; }
.brand .sig { stroke: rgb(var(--signal)); }
.nav { display: flex; gap: 22px; }
.nav a { text-decoration: none; color: rgb(var(--ink-2)); padding-block: 6px; border-bottom: 1px solid transparent; transition: color .2s, border-color .2s; }
.nav a:hover, .nav a.is-on { color: rgb(var(--ink)); border-color: rgb(var(--signal)); }
.tools { display: flex; align-items: center; gap: 10px; }
.tc {
  background: rgb(var(--signal)); color: rgb(var(--on-signal));
  padding: 6px 12px 6px 9px; font-variant-numeric: tabular-nums;
  clip-path: polygon(0 0, 100% 0, 100% 62%, calc(100% - 7px) 100%, 0 100%);
}
.seg { display: flex; border: 1px solid rgb(var(--ink) / .45); }
.seg button, .snd { padding: 6px 9px; letter-spacing: .12em; transition: background .2s, color .2s; }
.seg button[aria-pressed="true"] { background: rgb(var(--ink)); color: rgb(var(--bg)); }
.snd { border: 1px solid rgb(var(--ink) / .45); }
.snd[aria-pressed="true"] { border-color: rgb(var(--signal)); color: rgb(var(--signal)); }
@media (max-width: 920px) { .nav { display: none; } }
@media (max-width: 560px) { .tc, .snd { display: none; } .brand { font-size: 10.5px; letter-spacing: .16em; } }

/* ---------- Footer ---------- */
.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; padding-block: 28px 44px; border-top: 1px solid rgb(var(--ink) / .2); font: 500 10.5px/1.4 var(--f-data); letter-spacing: .12em; text-transform: uppercase; color: rgb(var(--ink-2)); }
.foot a { text-decoration: none; border-bottom: 1px solid rgb(var(--ink) / .3); }
.foot a:hover { color: rgb(var(--ink)); border-color: rgb(var(--signal)); }
.foot b { font-weight: 500; color: rgb(var(--ink)); font-variant-numeric: tabular-nums; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}