/* Forensic Ledger — #393A3C canvas, light type, ember primary */

:root {
  --surface: #393a3c;
  --surface-low: #323335;
  --surface-high: #404143;
  --surface-highest: #4a4c4f;
  --on-surface: #e8e8ea;
  --on-surface-variant: #c4c5c8;
  --primary-container: #ad473b;
  --on-primary-container: #ffffff;
  --secondary: #9dd761;
  --tertiary: #f0c14a;
  --outline-variant: rgba(255, 255, 255, 0.12);
  --font-head: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --radius-sm: 4px;
  --space-section: clamp(2rem, 5vw, 3.5rem);
  --space-block: 1.5rem;
  --max-read: 56rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--on-surface);
  background: var(--surface);
  background-image: linear-gradient(
    165deg,
    rgba(173, 71, 59, 0.08) 0%,
    transparent 42%
  );
  min-height: 100vh;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--primary-container);
  color: var(--on-primary-container);
  font-weight: 600;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

.header-primary {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(57, 58, 60, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--outline-variant);
}

.header-primary__inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1rem clamp(1.25rem, 4vw, 2rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.header-primary__brand {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
  color: var(--on-surface);
  text-decoration: none;
}

.header-primary__brand:hover {
  color: var(--secondary);
}

.header-primary__brand:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 3px;
}

.header-primary__nav {
  display: flex;
  gap: 1.25rem;
}

.header-primary__nav-link {
  font-family: var(--font-head);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  text-decoration: none;
  transition: color 0.05s ease;
}

.header-primary__nav-link:hover {
  color: var(--secondary);
}

.header-primary__nav-link:focus-visible {
  outline: 2px solid var(--tertiary);
  outline-offset: 3px;
}

.main {
  padding: var(--space-section) 0 calc(var(--space-section) * 1.25);
}

.main__inner {
  max-width: var(--max-read);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2rem);
}

.main__tag {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tertiary);
  margin: 0 0 0.5rem;
}

.main__title {
  font-family: var(--font-head);
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 0 0 var(--space-block);
}

.main__lead {
  margin: 0 0 var(--space-section);
  max-width: 42rem;
  color: var(--on-surface-variant);
  font-size: 1.0625rem;
}

.feature-grid {
  padding: var(--space-section) 0;
}

.feature-grid--alt {
  background: var(--surface-low);
  margin-left: calc(-1 * clamp(1.25rem, 4vw, 2rem));
  margin-right: calc(-1 * clamp(1.25rem, 4vw, 2rem));
  padding-left: clamp(1.25rem, 4vw, 2rem);
  padding-right: clamp(1.25rem, 4vw, 2rem);
  border-radius: var(--radius-sm);
}

.feature-grid__label {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary-container);
  margin: 0 0 0.35rem;
  letter-spacing: 0.08em;
}

.feature-grid__title {
  font-family: var(--font-head);
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 600;
  margin: 0 0 0.75rem;
  line-height: 1.25;
}

.feature-grid__desc {
  margin: 0 0 1.25rem;
  color: var(--on-surface-variant);
  font-size: 0.9375rem;
  max-width: var(--max-read);
}

.feature-grid__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-grid__list li {
  margin-bottom: 1.25rem;
}

.feature-grid__list li:last-child {
  margin-bottom: 0;
}

.feature-grid__list a {
  color: var(--on-surface);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid var(--outline-variant);
  padding-bottom: 0.1rem;
  transition: color 0.05s ease, border-color 0.05s ease;
}

.feature-grid__list a:hover {
  color: var(--secondary);
  border-bottom-color: rgba(157, 215, 97, 0.45);
}

.feature-grid__list a:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 3px;
}

.cta-primary {
  margin-top: var(--space-section);
  padding: var(--space-section);
  background: var(--surface-highest);
  border-radius: var(--radius-sm);
}

.cta-primary__title {
  font-family: var(--font-head);
  font-size: 1.5rem;
  margin: 0 0 0.75rem;
}

.cta-primary__text {
  margin: 0 0 1.5rem;
  color: var(--on-surface-variant);
  max-width: 38rem;
}

.cta-primary__btn {
  display: inline-block;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.65rem 1.25rem;
  background: var(--primary-container);
  color: var(--on-primary-container);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: filter 0.15s ease;
}

.cta-primary__btn:hover {
  filter: brightness(1.08);
}

.cta-primary__btn:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 3px;
}

.footer-standard {
  padding: 2rem clamp(1.25rem, 4vw, 2rem) 2.5rem;
  border-top: 1px solid var(--outline-variant);
}

.footer-standard__note,
.footer-standard__copy {
  margin: 0.35rem 0;
  font-size: 0.8125rem;
  color: var(--on-surface-variant);
  max-width: var(--max-read);
}

@media (max-width: 480px) {
  .header-primary__nav {
    gap: 0.75rem;
  }

  .header-primary__nav-link {
    font-size: 0.7rem;
  }
}