:root {
  --color-bg: #0a0e14;
  --color-bg-alt: #0f141c;
  --color-surface: #131a24;
  --color-border: #232b38;
  --color-text: #e6e9ef;
  --color-text-muted: #9aa4b2;
  --color-accent: #4f8cff;
  --color-accent-dim: #2b5fc0;
  --font-sans: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.55;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */

.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.wordmark {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text);
  text-decoration: none;
}

.wordmark-accent {
  color: var(--color-accent);
}

.site-nav {
  display: flex;
  gap: 28px;
}

.site-nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 14px;
}

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

.lang-switch {
  font-family: var(--font-mono);
  font-size: 12px !important;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 3px 8px;
}

.lang-switch:hover {
  border-color: var(--color-accent);
}

/* ---------- Hero ---------- */

.hero {
  padding: 96px 0 72px;
  border-bottom: 1px solid var(--color-border);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin: 0 0 16px;
}

.hero h1 {
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.15;
  font-weight: 600;
  margin: 0 0 20px;
  max-width: 820px;
}

.hero-sub {
  font-size: 17px;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 0 32px;
}

.hero-actions {
  display: flex;
  gap: 12px;
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-accent);
  color: #0a0e14;
}

.btn-primary:hover {
  background: var(--color-accent-dim);
  color: #e6e9ef;
}

.btn-secondary {
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
}

/* ---------- Sections ---------- */

.section {
  padding: 72px 0;
  border-bottom: 1px solid var(--color-border);
}

.section-alt {
  background: var(--color-bg-alt);
}

.section h2 {
  font-size: 26px;
  font-weight: 600;
  margin: 0 0 16px;
}

.section > .container > p {
  color: var(--color-text-muted);
  max-width: 720px;
}

.section-lede {
  font-size: 15px;
  margin-bottom: 40px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}

@media (max-width: 860px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 24px;
}

.card h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 10px;
}

.card p {
  font-size: 14px;
  color: var(--color-text-muted);
  margin: 0;
}

/* ---------- Principle list ---------- */

.principle-list {
  margin: 0;
  display: grid;
  gap: 28px;
}

.principle dt {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.principle dd {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 14px;
  max-width: 680px;
}

/* ---------- Footer ---------- */

.site-footer {
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-inner p {
  color: var(--color-text-muted);
  font-size: 13px;
  margin: 0;
}

.footer-inner nav {
  display: flex;
  gap: 20px;
}

.footer-inner nav a {
  color: var(--color-text-muted);
  font-size: 13px;
  text-decoration: none;
}

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

a {
  color: var(--color-accent);
}

/* ---------- Legal pages ---------- */

.legal-content {
  max-width: 720px;
}

.legal-content h1 {
  font-size: 28px;
  font-weight: 600;
  margin: 0 0 32px;
}

.legal-content h2 {
  font-size: 20px;
  font-weight: 600;
  margin: 40px 0 16px;
}

.legal-content h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 28px 0 10px;
}

.legal-content p {
  color: var(--color-text-muted);
  font-size: 15px;
  margin: 0 0 16px;
}

.legal-note {
  font-size: 13px;
  font-style: italic;
  border-left: 2px solid var(--color-border);
  padding-left: 14px;
}