/* Foundations: fonts, reset, typography defaults, site chrome. */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("/assets/fonts/InterVariable.woff2") format("woff2-variations"),
       url("/assets/fonts/InterVariable.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2190-2199, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
  src: url("/assets/fonts/JetBrainsMono-Variable.woff2") format("woff2-variations"),
       url("/assets/fonts/JetBrainsMono-Variable.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2190-2199, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---- Reset ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 16px); }
body, h1, h2, h3, h4, p, figure, blockquote, dl, dd, ol, ul, pre { margin: 0; }
ol[class], ul[class] { padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
img, video { height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--green); text-decoration: none; }
a:hover { color: var(--green-hover); }
/* Links inside running text are underlined so color is not the only cue. */
p > a:not([class]) { text-decoration: underline; text-decoration-color: var(--green-line); text-underline-offset: 3px; }
p > a:not([class]):hover { text-decoration-color: currentColor; }

:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; border-radius: var(--radius-xs); }
::selection { background: var(--green); color: var(--on-green); }

code, kbd, pre, samp { font-family: var(--font-mono); }

.visually-hidden {
  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-link {
  position: absolute;
  inset-inline-start: 16px;
  top: -100px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: var(--radius-8);
  background: var(--green);
  color: var(--on-green);
  font: 600 14px/1 var(--font-sans);
}
.skip-link:focus { top: 12px; color: var(--on-green); }

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.mono { font-family: var(--font-mono); }

/* ---- Page shell + background treatment ------------------------------------ */
.shell { position: relative; min-height: 100vh; }

.bg-decor {
  position: absolute;
  inset: 0 0 auto;
  height: 1400px;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}
.bg-decor__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(180deg, black 0, black 900px, transparent 1400px);
  mask-image: linear-gradient(180deg, black 0, black 900px, transparent 1400px);
}
.bg-decor__glow {
  position: absolute;
  border-radius: 50%;
}
.bg-decor__glow--green {
  top: -260px;
  left: 50%;
  width: 1100px;
  height: 700px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, var(--glow-green), transparent 70%);
}
.bg-decor__glow--violet {
  top: 120px;
  right: -240px;
  width: 640px;
  height: 640px;
  background: radial-gradient(closest-side, var(--glow-violet), transparent 70%);
}

main { position: relative; z-index: 1; }

/* ---- Logo (direction C: terminal) ----------------------------------------- */
.logo {
  --logo-size: 17px;
  display: inline-flex;
  align-items: center;
  gap: calc(var(--logo-size) * .41);
  font: 500 var(--logo-size)/1 var(--font-mono);
  color: var(--text-logo);
  white-space: nowrap;
}
.logo:hover { color: var(--text-logo); }
.logo--footer { --logo-size: 14px; }
.logo--brand { --logo-size: 30px; }
.logo__bracket { color: var(--logo-bracket); }
.logo__symbol { height: calc(var(--logo-size) * 1.06); width: auto; }
.logo__dot { color: var(--violet-dot); }
.logo__cursor {
  display: block;
  width: calc(var(--logo-size) * .47);
  height: var(--logo-size);
  background: var(--green);
  animation: blink 1s steps(1) infinite;
}

/* ---- Header --------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--header-bg);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header__inner {
  display: flex;
  align-items: center;
  gap: 28px;
  padding-block: 14px;
  min-height: var(--header-h);
}
.site-nav__list {
  display: flex;
  gap: 4px;
  font: 500 14px/1 var(--font-sans);
}
.site-nav__link {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-3);
  white-space: nowrap;
}
.site-nav__link:hover,
.site-nav__link[aria-current] { color: var(--text-strong); background: var(--hover-bg); }
.badge-live {
  font: 600 10px/1 var(--font-mono);
  color: var(--on-green);
  background: var(--sev-critical);
  padding: 3px 5px;
  border-radius: var(--radius-xs);
}
.site-header__actions {
  margin-inline-start: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}
.search-trigger {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 180px;
  padding: 8px 10px 8px 12px;
  border: 1px solid var(--line-3);
  border-radius: var(--radius-8);
  background: transparent;
  color: var(--text-dim);
  font: 400 13px/1 var(--font-sans);
  text-align: start;
}
.search-trigger:hover { border-color: var(--line-strong); color: var(--text-3); }
.search-trigger__label { flex: 1; }
.kbd {
  font: 500 11px/1 var(--font-mono);
  padding: 3px 6px;
  border: 1px solid var(--line-3);
  border-radius: var(--radius-xs);
}

@media (max-width: 900px) {
  html { scroll-padding-top: 140px; }
  .site-header__inner { flex-wrap: wrap; gap: 12px 20px; }
  .site-nav { order: 3; flex-basis: 100%; overflow-x: auto; margin-inline: calc(var(--gutter) * -1); padding-inline: calc(var(--gutter) - 12px); scrollbar-width: none; }
  .site-nav::-webkit-scrollbar { display: none; }
  .search-trigger { min-width: 0; }
}
@media (max-width: 560px) {
  .search-trigger__label, .search-trigger .kbd { display: none; }
  .search-trigger { padding: 9px; }
}

/* ---- Footer --------------------------------------------------------------- */
.site-footer {
  position: relative;
  z-index: 1;
  margin-top: 40px;
  border-top: 1px solid var(--line);
}
.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 40px;
  font: 400 13px/1.5 var(--font-sans);
  color: var(--text-faint);
}
.site-footer__brand { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.site-footer__links { display: flex; gap: 20px; font: 400 12.5px/1 var(--font-mono); }
.site-footer__links a { color: var(--text-dim); }
.site-footer__links a:hover { color: var(--text-strong); }

/* ---- Motion --------------------------------------------------------------- */
@keyframes blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }
@keyframes pulse { 0% { transform: scale(.6); opacity: .9; } 100% { transform: scale(2.4); opacity: 0; } }
@keyframes scan { from { transform: translateY(-100%); } to { transform: translateY(0); } }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0s !important;
    scroll-behavior: auto !important;
  }
}