*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--cyan-2); text-decoration: none; }
a:hover { color: var(--sand-2); }
h1, h2, h3, h4 { font-family: var(--font-display); letter-spacing: -0.015em; line-height: 1.12; margin: 0 0 0.6em; }
h1 { font-size: var(--fs-h1); font-weight: 700; }
h2 { font-size: var(--fs-h2); font-weight: 600; }
h3 { font-size: var(--fs-h3); font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--fg-2); }
p { margin: 0 0 1em; color: var(--fg-2); }
strong { color: var(--fg); }
code, kbd { font-family: var(--font-mono); font-size: 0.86em; background: rgba(79, 209, 255, 0.08); border: 1px solid var(--line); border-radius: 5px; padding: 0.08em 0.4em; color: var(--cyan-2); }
pre { font-family: var(--font-mono); font-size: 0.82rem; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 1rem 1.2rem; overflow-x: auto; color: var(--fg-2); }
pre code { background: none; border: 0; padding: 0; color: inherit; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }
blockquote { margin: 1.5rem 0; padding: 1rem 1.4rem; border-left: 3px solid var(--sand); background: rgba(233, 201, 123, 0.06); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--fg); font-style: italic; }
table { border-collapse: collapse; width: 100%; font-size: 0.94rem; }
th, td { text-align: left; padding: 0.65rem 0.8rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--sand); font-family: var(--font-mono); font-size: var(--fs-mono); text-transform: uppercase; letter-spacing: 0.08em; font-weight: 500; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-sm); }

.container { width: min(var(--container), 100% - 2 * var(--gutter)); margin-inline: auto; }
.container.narrow { width: min(var(--narrow), 100% - 2 * var(--gutter)); }
.section { padding-block: var(--section); position: relative; }
.section--tight { padding-block: calc(var(--section) * 0.55); }
.section--band { background: linear-gradient(180deg, transparent, rgba(47, 107, 255, 0.06) 40%, rgba(47, 107, 255, 0.06) 60%, transparent); }
.section--sand { background: linear-gradient(180deg, transparent, rgba(233, 201, 123, 0.05) 50%, transparent); }
.center { text-align: center; }
.lede { font-size: var(--fs-lede); color: var(--fg-2); max-width: 62ch; line-height: 1.55; }
.center .lede { margin-inline: auto; }
.eyebrow { font-family: var(--font-mono); font-size: var(--fs-mono); letter-spacing: 0.22em; text-transform: uppercase; color: var(--sand); margin-bottom: 1rem; display: inline-flex; align-items: center; gap: 0.6rem; }
.eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--sand); box-shadow: 0 0 8px var(--sand); }
.gradient-text { background: linear-gradient(92deg, var(--fg) 0%, var(--cyan-2) 45%, var(--sand-2) 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sand-text { color: var(--sand); }
.cyan-text { color: var(--cyan); }
.mono { font-family: var(--font-mono); font-size: var(--fs-mono); letter-spacing: 0.06em; color: var(--fg-muted); }
.muted { color: var(--fg-muted); }
.small { font-size: var(--fs-small); }

.skip-link { position: absolute; left: -999px; top: 8px; background: var(--sand); color: var(--sand-ink); padding: 0.5rem 1rem; border-radius: 6px; z-index: 100; }
.skip-link:focus { left: 8px; }
:focus-visible { outline: 2px solid var(--sand); outline-offset: 3px; }

/* Grid helpers */
.grid { display: grid; gap: 1.4rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); }
.split { display: grid; gap: 3rem; align-items: center; grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); }
.stack > * + * { margin-top: 1rem; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(14px) saturate(140%); background: linear-gradient(180deg, rgba(4, 8, 20, 0.92), rgba(4, 8, 20, 0.7)); border-bottom: 1px solid var(--line); }
.nav-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; color: var(--fg); }
.brand__name { font-family: var(--font-display); font-weight: 700; letter-spacing: 0.18em; font-size: 0.98rem; }
.brand__tag { font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--sand); border-left: 1px solid var(--line-2); padding-left: 0.6rem; margin-left: 0.2rem; }
.primary-nav { display: flex; align-items: center; gap: 1.35rem; }
.primary-nav a { color: var(--fg-2); font-size: 0.93rem; font-weight: 500; position: relative; }
.primary-nav a:not(.btn)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -6px; height: 1px; background: var(--sand); transition: right 0.3s var(--ease); }
.primary-nav a:not(.btn):hover::after, .primary-nav a[aria-current="page"]::after { right: 0; }
.primary-nav a[aria-current="page"] { color: var(--fg); }
.primary-nav a.btn--sand, .primary-nav a.btn--sand:hover { color: var(--sand-ink); }
.nav-toggle { display: none; background: none; border: 1px solid var(--line-2); border-radius: 8px; width: 42px; height: 38px; padding: 8px; cursor: pointer; flex-direction: column; justify-content: space-between; }
.nav-toggle span { display: block; height: 2px; background: var(--fg); border-radius: 2px; transition: transform 0.3s, opacity 0.3s; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); margin-top: var(--section); padding: 3.5rem 0 2rem; background: linear-gradient(180deg, transparent, rgba(7, 16, 33, 0.9)); position: relative; z-index: 1; }
.footer-grid { display: grid; gap: 2rem; grid-template-columns: 2fr repeat(3, 1fr); }
.footer-grid h4 { margin-bottom: 0.8rem; color: var(--sand); }
.footer-grid a { display: block; color: var(--fg-muted); font-size: 0.93rem; padding: 0.22rem 0; }
.footer-grid a:hover { color: var(--fg); }
.footer-blurb { font-size: 0.93rem; max-width: 46ch; margin-top: 1rem; }
.footer-mono { font-family: var(--font-mono); font-size: var(--fs-mono); color: var(--fg-dim); letter-spacing: 0.08em; }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-top: 2.5rem; padding-top: 1.2rem; border-top: 1px solid var(--line); color: var(--fg-dim); font-size: var(--fs-small); }

@media (max-width: 960px) {
  .brand__tag { display: none; }
  .nav-toggle { display: flex; }
  .primary-nav { position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: rgba(4, 8, 20, 0.97); border-bottom: 1px solid var(--line); padding: 0.5rem var(--gutter) 1rem; display: none; }
  .primary-nav.is-open { display: flex; }
  .primary-nav a { padding: 0.75rem 0; border-bottom: 1px solid var(--line); }
  .primary-nav a.btn { margin-top: 0.8rem; text-align: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }