@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;600;700&family=JetBrains+Mono:wght@400;600;700&family=IBM+Plex+Sans:wght@400;500;600;700&display=swap");

:root {
  --ink: #e8f0ea;
  --ink-soft: #b7c4bc;
  --paper: #0b1110;
  --sand: #101816;
  --sage: #7fbf9b;
  --sun: #78dba2;
  --clay: #3b7a57;
  --night: #0a0f0e;
  --card: rgba(16, 24, 22, 0.82);
  --radius: 20px;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  --glow: 0 0 0 1px rgba(127, 191, 155, 0.2);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Helvetica", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top, rgba(120, 219, 162, 0.12), transparent 55%),
    radial-gradient(circle at 20% 20%, rgba(59, 122, 87, 0.18), transparent 50%),
    linear-gradient(180deg, #0b1110 0%, #0a0f0e 50%, #0b1312 100%);
  line-height: 1.6;
  font-size: 16px;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-hero {
  padding: 32px 6vw 80px;
  background:
    linear-gradient(135deg, rgba(11, 17, 16, 0.9), rgba(11, 17, 16, 0.4)),
    radial-gradient(circle at 80% 0%, rgba(120, 219, 162, 0.2), transparent 50%);
  position: relative;
  overflow: hidden;
}

.site-hero::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(120, 219, 162, 0.22), transparent 70%);
  top: -120px;
  right: -120px;
}

.site-hero::after {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 32px;
  background: linear-gradient(120deg, rgba(59, 122, 87, 0.35), rgba(120, 219, 162, 0.2));
  bottom: -60px;
  left: -40px;
  transform: rotate(-8deg);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  position: relative;
  z-index: 2;
}

.logo {
  font-family: "JetBrains Mono", "Courier New", monospace;
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.08em;
  text-transform: lowercase;
}

.nav-links {
  display: flex;
  gap: 18px;
  font-family: "Space Grotesk", "Helvetica", sans-serif;
  font-size: 0.85rem;
}

.nav-links a {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(16, 24, 22, 0.8);
  border: 1px solid rgba(127, 191, 155, 0.2);
  transition: transform 0.2s ease, background 0.2s ease;
}

.nav-links a:hover {
  background: rgba(20, 32, 28, 0.95);
  transform: translateY(-2px);
}

.hero-content {
  margin-top: 60px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  position: relative;
  z-index: 2;
}

.hero-text h1 {
  font-size: clamp(2rem, 2.6vw, 2.8rem);
  margin: 12px 0 16px;
  line-height: 1.1;
}

.eyebrow {
  font-family: "JetBrains Mono", "Courier New", monospace;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.75rem;
  color: var(--sun);
}

.lead {
  max-width: 560px;
  color: var(--ink-soft);
  margin-bottom: 22px;
  font-size: 0.98rem;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: "Space Grotesk", "Helvetica", sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
}

.btn.primary {
  background: linear-gradient(120deg, #2b7a57, #78dba2);
  color: #06110d;
  box-shadow: var(--shadow);
}

.btn.ghost {
  border-color: var(--sun);
}

.hero-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(127, 191, 155, 0.2);
}

.page-hero {
  padding: 36px 6vw 50px;
  background:
    linear-gradient(135deg, rgba(11, 17, 16, 0.95), rgba(11, 17, 16, 0.5)),
    radial-gradient(circle at 75% 10%, rgba(120, 219, 162, 0.18), transparent 55%);
  position: relative;
  overflow: hidden;
}

.page-title {
  font-size: clamp(1.8rem, 2.4vw, 2.6rem);
  margin: 10px 0 8px;
}

.subnav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-family: "Space Grotesk", "Helvetica", sans-serif;
  font-size: 0.9rem;
  margin-top: 18px;
}

.subnav a {
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(16, 24, 22, 0.8);
  border: 1px solid rgba(127, 191, 155, 0.18);
}

.checklist {
  padding-left: 18px;
}

.checklist li {
  margin: 8px 0;
}

main {
  padding: 0 6vw 80px;
}

.section {
  padding: 70px 0;
}

.section.alt {
  background: linear-gradient(180deg, rgba(16, 24, 22, 0.8), rgba(11, 17, 16, 0));
  border-radius: 32px;
  padding: 70px 4vw;
}

.section-title p {
  font-family: "JetBrains Mono", "Courier New", monospace;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.7rem;
  color: var(--sage);
}

.section-title h2 {
  margin: 8px 0 26px;
  font-size: clamp(1.6rem, 2vw, 2.3rem);
}

.toc {
  background: rgba(16, 24, 22, 0.8);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  font-family: "JetBrains Mono", "Courier New", monospace;
  border: 1px solid rgba(127, 191, 155, 0.2);
}

.toc h3 {
  margin-top: 0;
}

.toc ul {
  padding-left: 18px;
  margin-bottom: 0;
}

.split {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.note {
  background: rgba(127, 191, 155, 0.12);
  border-radius: 16px;
  padding: 16px;
  font-family: "JetBrains Mono", "Courier New", monospace;
}

.pill {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(120, 219, 162, 0.12);
  border: 1px solid rgba(120, 219, 162, 0.3);
  font-family: "JetBrains Mono", "Courier New", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.grid {
  display: grid;
  gap: 24px;
}

.grid.two {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid.three {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  font-size: 0.98rem;
  border: 1px solid rgba(127, 191, 155, 0.16);
}

.card h3 {
  margin-top: 0;
}

.card ul {
  padding-left: 18px;
}

.code-block {
  background: #09100e;
  color: #c9f1da;
  border-radius: 16px;
  padding: 16px;
  font-family: "JetBrains Mono", "Courier New", monospace;
  font-size: 0.85rem;
  overflow-x: auto;
  border: 1px solid rgba(120, 219, 162, 0.18);
}

.text-link {
  font-family: "JetBrains Mono", "Courier New", monospace;
  font-weight: 600;
  color: var(--sun);
}

.footer {
  padding: 32px 6vw 48px;
  background: #070c0b;
  color: var(--ink);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  border-top: 1px solid rgba(127, 191, 155, 0.2);
}

.footer-links {
  display: flex;
  gap: 18px;
  font-family: "JetBrains Mono", "Courier New", monospace;
}

@media (max-width: 720px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    flex-wrap: wrap;
  }

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

@media (prefers-reduced-motion: no-preference) {
  .hero-text,
  .hero-card,
  .card {
    animation: fadeUp 0.7s ease both;
  }

  .hero-card {
    animation-delay: 0.15s;
  }

  .card:nth-child(2) {
    animation-delay: 0.2s;
  }

  .card:nth-child(3) {
    animation-delay: 0.35s;
  }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}