/* Exigentec EVE tools. No external requests, no scripts. Colors follow the Exigentec brand sheet. */

:root {
  color-scheme: light dark;
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-2: #f1f5f9;
  --ink: #0f172a;
  --body: #334155;
  --muted: #55657a;
  --line: #dbe3ee;
  --accent: #0e7490;
  --accent-strong: #155e75;
  --accent-deco: #06b6d4;
  --node: #38bdf8;
  --on-accent: #ffffff;
  --grid: rgba(15, 23, 42, 0.05);
  --glow: rgba(6, 182, 212, 0.12);
  --warn-bg: #fff7ed;
  --warn-line: #fdba74;
  --warn-ink: #7c2d12;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  --radius: 14px;
  --gutter: 16px;
  --max: 1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --surface: #111b2e;
    --surface-2: #0f1828;
    --ink: #f1f5f9;
    --body: #cbd5e1;
    --muted: #94a3b8;
    --line: #22304a;
    --accent: #22d3ee;
    --accent-strong: #67e8f9;
    --accent-deco: #22d3ee;
    --node: #38bdf8;
    --on-accent: #0b1220;
    --grid: rgba(148, 163, 184, 0.07);
    --glow: rgba(34, 211, 238, 0.10);
    --warn-bg: #2a1a10;
    --warn-line: #9a5b2b;
    --warn-ink: #fed7aa;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 5rem;
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--body);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
  overflow-wrap: break-word;
}

img, svg { max-width: 100%; height: auto; }

a { color: var(--accent); text-underline-offset: 0.18em; }
a:hover { color: var(--accent-strong); }

:focus-visible {
  outline: 3px solid var(--accent-deco);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip {
  position: absolute;
  left: var(--gutter);
  top: -4rem;
  z-index: 20;
  padding: 0.6rem 1rem;
  background: var(--ink);
  color: var(--bg);
  border-radius: 6px;
  text-decoration: none;
}
.skip:focus { top: 0.75rem; }

.wrap {
  width: 100%;
  max-width: calc(var(--max) + 2 * var(--gutter));
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* Dark surfaces (masthead, page heads, footer) keep the brand's ink background in both color schemes. */
.masthead, .page-head, .site-footer {
  --ink: #ffffff;
  --body: #cbd5e1;
  --muted: #94a3b8;
  --line: #1e2b45;
  --surface: #111b2e;
  --surface-2: rgba(255, 255, 255, 0.06);
  --accent: #22d3ee;
  --accent-strong: #67e8f9;
  --accent-deco: #22d3ee;
  --on-accent: #04222a;
  --grid: rgba(148, 163, 184, 0.07);
  color: var(--body);
  background-color: #0b1220;
}
.site-footer .footer-logo { display: block; width: 130px; height: auto; margin-bottom: 1rem; }

/* ------------------------------------------------------------------ header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem 1.25rem;
  padding-top: 0.7rem;
  padding-bottom: 0.7rem;
}

.brand { display: inline-flex; align-items: center; gap: 0.75rem; text-decoration: none; line-height: 1; }
.brand img { width: 150px; height: auto; display: block; }
.brand .sub {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  padding-left: 0.75rem;
  border-left: 1px solid var(--line);
}

.nav { display: flex; flex-wrap: wrap; align-items: center; gap: 0.25rem 1.25rem; }
.nav ul { display: flex; flex-wrap: wrap; gap: 0 1.25rem; margin: 0; padding: 0; list-style: none; font-size: 0.95rem; }
.nav a:not(.button) {
  display: inline-block;
  padding: 0.4rem 0;
  color: var(--body);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}
.nav a:not(.button):hover, .nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent-deco); }
.nav .button { padding: 0.35rem 1rem; font-size: 0.95rem; }

/* ------------------------------------------------------------------ masthead */
.masthead {
  position: relative;
  overflow: hidden;
  text-align: center;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(60rem 30rem at 82% -12%, rgba(34, 211, 238, 0.16), transparent 60%),
    radial-gradient(45rem 26rem at 0% 120%, rgba(56, 189, 248, 0.10), transparent 60%),
    #0b1220;
}
.masthead .wrap { position: relative; z-index: 1; padding-top: 2.5rem; padding-bottom: 3.25rem; }
@media (min-width: 860px) { .masthead .wrap { padding-top: 3.5rem; padding-bottom: 4.5rem; } }
.masthead-logo { display: block; width: min(420px, 78vw); height: auto; margin: 0 auto 1.75rem; border-radius: 12px; }
.masthead h1 { max-width: 24ch; margin-inline: auto; color: #fff; }
.masthead .lede { margin-inline: auto; color: #94a3b8; }
.masthead .actions { justify-content: center; }
.masthead .eyebrow { color: var(--accent); font-weight: 600; }

.hero-net { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.5; pointer-events: none; }
.hero-net line { stroke: #22d3ee; stroke-width: 1; opacity: 0.4; }
.hero-net circle { fill: #22d3ee; }

.eyebrow, .label {
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.eyebrow { margin: 0 0 0.9rem; }
.eyebrow::before { content: "// "; color: var(--accent-deco); }
.label { color: var(--accent); font-weight: 600; margin: 0 0 0.4rem; }

.lede { max-width: 40rem; margin: 0 0 1.5rem; font-size: clamp(1.05rem, 2.6vw, 1.2rem); }
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.button {
  display: inline-block;
  padding: 0.65rem 1.15rem;
  border: 2px solid var(--accent);
  border-radius: 10px;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  text-decoration: none;
}
.button:hover { background: var(--accent-strong); border-color: var(--accent-strong); color: var(--on-accent); }
.button.secondary { background: transparent; color: var(--accent); }
.button.secondary:hover { background: transparent; color: var(--accent-strong); border-color: var(--accent-strong); }

/* ---------------------------------------------------------------- sections */
section { padding: 3rem 0; }
section + section { border-top: 1px solid var(--line); }
.intro { max-width: 46rem; margin: 0 0 1.75rem; }
.section-head { text-align: center; }
.section-head .intro { margin-inline: auto; }
.page-head { padding: 2.5rem 0 2.25rem; border-bottom: 1px solid var(--line);
  background:
    radial-gradient(48rem 16rem at 90% -20%, rgba(34, 211, 238, 0.14), transparent 70%),
    linear-gradient(var(--grid) 1px, transparent 1px) 0 0 / 36px 36px,
    linear-gradient(90deg, var(--grid) 1px, transparent 1px) 0 0 / 36px 36px,
    #0b1220; }
.page-head h1 { margin-bottom: 0.75rem; }
.page-head .lede { margin-bottom: 0; }

.crumbs { margin: 0 0 1rem; font-family: var(--mono); font-size: 0.8rem; color: var(--muted); }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--accent-strong); }

/* ------------------------------------------------------------------- cards */
.grid { display: grid; gap: 1rem; margin: 0; padding: 0; list-style: none; }
@media (min-width: 640px) { .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 960px) { .grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); } }

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 1.25rem 1.25rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--body);
  text-decoration: none;
}
.card h3 { margin-top: 0.6rem; }
.card .ic { display: flex; align-items: center; justify-content: center; width: 44px; height: 44px; margin-bottom: 0.9rem; border-radius: 12px; background: rgba(6, 182, 212, 0.12); }
.card .ic svg { width: 24px; height: 24px; fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
a.card { transition: transform 0.2s ease, box-shadow 0.2s ease; }
a.card:hover { transform: translateY(-3px); box-shadow: 0 18px 40px -22px rgba(15, 23, 42, 0.45); }
@media (prefers-reduced-motion: reduce) { a.card { transition: none; } a.card:hover { transform: none; } }
.card p { margin: 0 0 0.75rem; font-size: 0.97rem; }
.card .more { margin-top: auto; font-family: var(--mono); font-size: 0.82rem; color: var(--accent); }
a.card:hover { border-color: var(--accent-deco); }
a.card:hover .more { color: var(--accent-strong); text-decoration: underline; }
.card .for { font-size: 0.88rem; color: var(--muted); }

/* ------------------------------------------------------------------- chips */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  align-self: flex-start;
  padding: 0.12rem 0.6rem 0.12rem 0.5rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.6;
  white-space: nowrap;
}
.chip::before { content: ""; width: 0.55rem; height: 0.55rem; background: var(--muted); }
.chip.dev::before { background: var(--accent-deco); }
.chip.built::before { background: var(--node); border-radius: 50%; }
.chip.planned::before { background: transparent; border: 2px solid var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0 0 1rem; }

/* ------------------------------------------------------------- spec sheets */
.spec { display: grid; margin: 0 0 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.spec div { display: grid; gap: 0.1rem 1rem; padding: 0.7rem 1rem; border-top: 1px solid var(--line); }
.spec div:first-child { border-top: 0; }
.spec dt { font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.spec dd { margin: 0; color: var(--ink); }
@media (min-width: 640px) { .spec div { grid-template-columns: 11rem minmax(0, 1fr); } .spec dt { padding-top: 0.2rem; } }

/* ---------------------------------------------------------------- content */
.content { display: grid; grid-template-columns: minmax(0, 1fr); gap: 2.25rem; }
.content > section { padding: 0; border: 0; min-width: 0; }
.content h2 { padding-bottom: 0.4rem; border-bottom: 1px solid var(--line); }
.content ul, .content ol { margin: 0.5rem 0 1rem; padding-left: 1.25rem; }
.content li { margin: 0.35rem 0; }
.content li::marker { color: var(--accent-deco); }
.content p { margin: 0.5rem 0 1rem; max-width: 46rem; }
.content ul, .content ol { max-width: 46rem; }

code, kbd { font-family: var(--mono); font-size: 0.88em; padding: 0.1em 0.35em; background: var(--surface-2); border: 1px solid var(--line); border-radius: 4px; overflow-wrap: anywhere; }
pre { margin: 0.75rem 0 1.25rem; padding: 1rem; overflow-x: auto; background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius); font-size: 0.86rem; line-height: 1.55; }
pre code { padding: 0; background: none; border: 0; font-size: inherit; overflow-wrap: normal; }

.table-wrap { margin: 0.75rem 0 1.25rem; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
th, td { padding: 0.65rem 0.85rem; text-align: left; vertical-align: top; border-top: 1px solid var(--line); }
thead th { border-top: 0; font-family: var(--mono); font-size: 0.76rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); background: var(--surface-2); }
tbody th { color: var(--ink); font-weight: 600; }
.table-wrap table { min-width: 0; }
@media (max-width: 639px) {
  .stack-sm thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  .stack-sm tr { display: block; padding: 0.4rem 0; border-top: 1px solid var(--line); }
  .stack-sm tr:first-child { border-top: 0; }
  .stack-sm th, .stack-sm td { display: block; border: 0; padding: 0.25rem 0.85rem; }
  .stack-sm td[data-label]::before { content: attr(data-label) ": "; font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
}

.callout { margin: 1.25rem 0; padding: 1rem 1.15rem; border: 1px solid var(--line); border-left: 4px solid var(--accent-deco); border-radius: var(--radius); background: var(--surface); }
.callout > :first-child { margin-top: 0; }
.callout > :last-child { margin-bottom: 0; }
.callout.warn { background: var(--warn-bg); border-color: var(--warn-line); border-left-color: var(--warn-line); color: var(--warn-ink); }
.callout.warn strong, .callout.warn a { color: inherit; }
.callout p { max-width: none; }

.link-box { display: block; margin: 0.75rem 0 1rem; padding: 1rem 1.15rem; border: 1px dashed var(--accent-deco); border-radius: var(--radius); background: var(--surface); }
.link-box .label { display: block; margin-bottom: 0.3rem; }
.link-box a { font-family: var(--mono); font-size: 1.02rem; overflow-wrap: anywhere; }

.related { display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; margin: 0; padding: 0; list-style: none; }

/* ------------------------------------------------------------------ footer */
.site-footer { margin-top: 0; padding: 2.25rem 0 2.5rem; border-top: 1px solid var(--line); font-size: 0.9rem; }
.site-footer p { max-width: 54rem; margin: 0 0 0.75rem; }
.site-footer ul { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; margin: 0 0 1rem; padding: 0; list-style: none; }
.site-footer a { color: #94a3b8; }
.site-footer a:hover { color: #fff; }

@media print {
  .site-header, .skip, .hero-net { display: none; }
  body { background: #fff; color: #000; }
}