/* Refined design tokens */
:root {
  --color-primary: #3b82f6;
  --color-secondary: #8b5cf6;
  --color-success: #16a34a;
  --color-warning: #d97706;
  --color-danger: #dc2626;
  --color-surface: #ffffff;
  --color-text: #111827;
  --color-text-muted: #4b5563;
  --color-border: #e5e7eb;
  --color-focus-ring: #2563eb;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --font-display: "Playfair Display", Georgia, serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --radius: 8px;
  --shadow-soft: 0 1px 2px rgb(17 24 39 / 6%), 0 8px 24px rgb(17 24 39 / 8%);
  --max-content: 65ch;
  --max-page: 720px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-surface);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  margin: 0 0 var(--space-4);
}

h2 {
  font-size: 1.25rem;
  margin: var(--space-6) 0 var(--space-3);
}

h3 {
  font-size: 1.05rem;
  margin: var(--space-5) 0 var(--space-2);
}

p {
  margin: 0 0 var(--space-4);
}

a {
  color: var(--color-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: #2563eb;
}

a:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  padding: var(--space-2) var(--space-4);
  background: var(--color-text);
  color: var(--color-surface);
  font-weight: 600;
  border-radius: var(--radius);
  z-index: 100;
}

.skip-link:focus {
  top: var(--space-4);
}

.site-header {
  border-bottom: 1px solid var(--color-border);
  background: rgb(255 255 255 / 92%);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header__inner {
  max-width: 960px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.brand {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
}

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

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: 0.9375rem;
}

.nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
}

.nav a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

main {
  padding-bottom: var(--space-6);
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.hero {
  padding: var(--space-6) 0 clamp(48px, 10vw, 80px);
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin: 0 0 var(--space-3);
}

.hero__lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 36rem;
  margin: 0 0 var(--space-5);
}

.features {
  display: grid;
  gap: var(--space-5);
  padding: var(--space-5) 0 var(--space-6);
}

@media (min-width: 640px) {
  .features {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  background: var(--color-surface);
}

.feature-card h2 {
  margin-top: 0;
  font-size: 1.1rem;
}

.feature-card p {
  margin-bottom: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-2) 0 var(--space-6);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.25;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

button.btn {
  appearance: none;
}

.btn--primary {
  background: var(--color-text);
  color: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.btn--primary:hover {
  background: #1f2937;
  color: var(--color-surface);
}

.btn--primary:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

.btn--primary:disabled {
  opacity: 0.75;
  cursor: not-allowed;
}

.btn__note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-6) 0;
  margin-top: auto;
}

.site-footer__inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .site-footer__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: 0.9375rem;
}

.footer-meta {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}

.page-legal {
  padding: var(--space-6) 0;
}

.page-legal .container {
  max-width: var(--max-page);
}

.legal-doc {
  max-width: var(--max-content);
}

.legal-doc h1 {
  font-size: 1.75rem;
}

.legal-meta {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}

.legal-doc section h2 {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  margin-top: var(--space-5);
}

.legal-doc ol {
  padding-left: 1.25rem;
  margin: 0 0 var(--space-4);
}

.legal-doc li {
  margin-bottom: var(--space-3);
}

.legal-doc ul {
  margin: var(--space-2) 0 var(--space-4);
  padding-left: 1.25rem;
}

.legal-doc .allcaps {
  font-size: 0.9em;
  letter-spacing: 0.02em;
}

.legal-aside {
  margin-top: var(--space-6);
  padding: var(--space-4);
  background: #f9fafb;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

body.layout-sticky-footer {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body.layout-sticky-footer main {
  flex: 1;
}

.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;
}