/* AI Anvil — static site styles. No external fonts, no trackers, no JavaScript. */

:root {
  color-scheme: dark;
  --bg: #0e1014;
  --bg-soft: #12151b;
  --surface: #161a22;
  --surface-raised: #1b202a;
  --border: #29303c;
  --text: #e9e6df;
  --muted: #a4abb6;
  --faint: #737b88;
  --accent: #e7a558;
  --accent-bright: #f3c27e;
  --accent-dim: #8a5a28;
  --max: 1040px;
  --radius: 18px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(900px 520px at 50% -10%, rgba(231, 165, 88, 0.13), transparent 70%),
    radial-gradient(700px 420px at 85% 8%, rgba(122, 92, 255, 0.06), transparent 70%),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--accent-bright);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: #ffd9a6;
}

:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  z-index: 100;
  padding: 0.6rem 0.9rem;
  border-radius: 8px;
  background: var(--accent);
  color: #1a1208;
  font-weight: 650;
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* Header and navigation */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.6rem 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand:hover {
  color: var(--text);
}

.brand span {
  font-size: 1.05rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.95rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--text);
}

.site-nav a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 0.35em;
}

/* Shared page shell */

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem 5rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

h1 {
  margin: 0 0 1.4rem;
  font-size: clamp(2.6rem, 7vw, 5.2rem);
  font-weight: 750;
}

h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  font-weight: 700;
}

h3 {
  margin: 0 0 0.7rem;
  font-size: 1.12rem;
  font-weight: 650;
}

p {
  margin: 0 0 1.1rem;
}

.lede {
  max-width: 42rem;
  color: var(--muted);
  font-size: clamp(1.12rem, 2.2vw, 1.35rem);
  line-height: 1.55;
}

.lede strong {
  color: var(--text);
  font-weight: 650;
}

.note {
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

/* Home: hero */

.hero {
  padding: 4.5rem 0 4rem;
  border-bottom: 1px solid var(--border);
}

.hero h1 {
  background: linear-gradient(120deg, #fff 10%, var(--accent-bright) 55%, #c9863f 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Home: principles */

.principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding: 3rem 0;
  border-bottom: 1px solid var(--border);
}

.principles article {
  padding: 1.4rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.025), transparent), var(--surface);
}

.principles p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* Home: project */

.project {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: 2.5rem;
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--border);
}

.project p {
  color: var(--muted);
  max-width: 40rem;
}

.card {
  align-self: start;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-raised);
}

.card h3 {
  color: var(--accent-bright);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.card li + li {
  margin-top: 0.45rem;
}

/* Home: closing */

.closing {
  padding: 3.5rem 0 0;
}

.closing p {
  max-width: 38rem;
  color: var(--muted);
}

/* Legal / prose pages */

.prose {
  max-width: 760px;
  padding-top: 2.5rem;
}

.prose h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.6rem);
}

.prose h2 {
  margin-top: 2.6rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--border);
  font-size: 1.35rem;
}

.prose h3 {
  margin-top: 1.8rem;
  font-size: 1.05rem;
}

.prose p,
.prose li {
  color: var(--muted);
}

.prose strong {
  color: var(--text);
}

.prose ul {
  padding-left: 1.2rem;
}

.prose li + li {
  margin-top: 0.4rem;
}

.prose code {
  padding: 0.1em 0.35em;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--bg-soft);
  color: var(--accent-bright);
  font-family: var(--mono);
  font-size: 0.86em;
  overflow-wrap: anywhere;
}

.meta {
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

.back {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

/* Footer */

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem 1.5rem;
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  border-top: 1px solid var(--border);
  color: var(--faint);
  font-size: 0.88rem;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--muted);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--text);
}

/* Responsive */

@media (max-width: 780px) {
  .principles,
  .project {
    grid-template-columns: 1fr;
  }

  .project {
    gap: 1.5rem;
  }

  .hero {
    padding-top: 3rem;
  }
}

@media (max-width: 520px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .site-nav {
    gap: 1.1rem;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

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