:root {
  --bg: #0a0a0a;
  --bg-elevated: #121212;
  --stroke: #262626;
  --text: #e8e4dc;
  --muted: #9a968c;
  --accent: #c8f562;
  --accent-text: #0d0d0c;
  --font-sans: "DM Sans", system-ui, -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --space: clamp(1rem, 2vw, 1.5rem);
  --max: 72rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 600;
  z-index: 100;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--stroke);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.85rem var(--space);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand:hover {
  text-decoration: none;
  color: var(--accent);
}

.brand img {
  height: 28px;
  width: auto;
  display: block;
}

.nav-main {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

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

.nav-main a:hover {
  color: var(--text);
  text-decoration: none;
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--space) 4rem;
}

.hero {
  padding: clamp(3rem, 12vw, 7rem) 0 clamp(2.5rem, 8vw, 4rem);
  border-bottom: 1px solid var(--stroke);
}

.hero-kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin: 0 0 1rem;
}

.hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.hero-lead {
  margin: 0 0 1.75rem;
  max-width: 38rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: center;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--accent);
  color: var(--accent-text);
  border: 1px solid var(--accent);
  cursor: pointer;
  text-decoration: none;
}

.btn-primary:hover {
  filter: brightness(1.05);
  text-decoration: none;
}

.btn-ghost {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.btn-ghost:hover {
  color: var(--text);
  text-decoration: none;
}

.protocol {
  margin-top: 2rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--stroke);
  background: var(--bg-elevated);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.7;
}

.protocol strong {
  color: var(--text);
  font-weight: 600;
}

.section {
  padding: clamp(2.5rem, 6vw, 4rem) 0;
  border-bottom: 1px solid var(--stroke);
}

.section:last-of-type {
  border-bottom: none;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.section-head h2 {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.section-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.prose p {
  margin: 0 0 1rem;
  color: var(--muted);
  max-width: 48rem;
}

.prose p:last-child {
  margin-bottom: 0;
}

.grid-2 {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

.topic-block {
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--stroke);
  background: var(--bg-elevated);
}

.topic-block h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
}

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

.guides {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .guides {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .guides {
    grid-template-columns: repeat(3, 1fr);
  }
}

.guide-card {
  border: 1px solid var(--stroke);
  padding: 1.1rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-height: 100%;
}

.guide-card time {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.guide-card h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.35;
}

.guide-card h3 a {
  color: var(--text);
  text-decoration: none;
}

.guide-card h3 a:hover {
  color: var(--accent);
  text-decoration: none;
}

.guide-card p {
  margin: 0;
  flex: 1;
  font-size: 0.9rem;
  color: var(--muted);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.2rem 0.45rem;
  border: 1px solid var(--stroke);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.lists {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}

@media (min-width: 900px) {
  .lists {
    grid-template-columns: 2fr 1fr;
  }
}

.list-panel {
  border: 1px solid var(--stroke);
  padding: 1.25rem 1.35rem;
  background: var(--bg-elevated);
}

.list-panel h3 {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.list-panel ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.list-panel li {
  padding: 0.45rem 0;
  border-top: 1px solid var(--stroke);
  font-size: 0.92rem;
  color: var(--muted);
}

.list-panel li:first-of-type {
  border-top: none;
  padding-top: 0;
}

.list-panel a {
  color: var(--text);
}

.site-footer {
  margin-top: 2rem;
  padding: 2rem var(--space);
  border-top: 1px solid var(--stroke);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

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

.footer-links a:hover {
  color: var(--accent);
  text-decoration: none;
}

.legal-wrap {
  max-width: 48rem;
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 3.5rem) var(--space) 4rem;
}

.legal-wrap h1 {
  margin: 0 0 0.5rem;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.legal-updated {
  margin: 0 0 2rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.legal-content h2 {
  margin: 2rem 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.legal-content h2:first-of-type {
  margin-top: 0;
}

.legal-content p,
.legal-content li {
  color: var(--muted);
  font-size: 0.98rem;
}

.legal-content p {
  margin: 0 0 1rem;
}

.legal-content ul {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
  color: var(--muted);
}

.legal-content li {
  margin-bottom: 0.4rem;
}

.legal-content strong {
  color: var(--text);
  font-weight: 600;
}

.legal-box {
  margin: 1.25rem 0;
  padding: 1rem 1.15rem;
  border: 1px solid var(--stroke);
  background: var(--bg-elevated);
  font-size: 0.92rem;
  color: var(--muted);
}

.back-row {
  margin-bottom: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.back-row a {
  color: var(--muted);
}

.back-row a:hover {
  color: var(--accent);
}