:root {
  --bg: #f2f7f5;
  --bg-strong: #e6f1ee;
  --card: #ffffff;
  --ink: #0b2624;
  --muted: #466562;
  --accent: #0f766e;
  --accent-strong: #0b4c4a;
  --accent-soft: #c7efe7;
  --sun: #f3e6c9;
  --border: #d7e5e1;
  --shadow: 0 24px 50px -36px rgba(11, 38, 36, 0.6);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Manrope", "Noto Sans", "Segoe UI", sans-serif;
  color: var(--ink);
  background: linear-gradient(140deg, #f6fbf9 0%, #eef6f5 35%, #fdf6ea 100%);
  min-height: 100vh;
}

body::before,
body::after {
  content: "";
  position: fixed;
  z-index: -1;
  border-radius: 999px;
  filter: blur(80px);
  opacity: 0.55;
}

body::before {
  width: 420px;
  height: 420px;
  left: -120px;
  top: 120px;
  background: radial-gradient(circle at center, #bde7df 0%, transparent 70%);
}

body::after {
  width: 380px;
  height: 380px;
  right: -140px;
  top: 30px;
  background: radial-gradient(circle at center, #f6e0b8 0%, transparent 70%);
}

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

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(15, 118, 110, 0.3);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: 8px;
  padding: 8px 12px;
  background: #ffffff;
  border-radius: 999px;
  border: 1px solid var(--border);
  transform: translateY(-200%);
  transition: transform 0.2s ease;
  z-index: 1000;
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px 80px;
}

.site-header {
  position: relative;
  padding-bottom: 32px;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  background: rgba(246, 251, 249, 0.92);
  border-bottom: 1px solid rgba(215, 229, 225, 0.7);
  backdrop-filter: blur(10px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
}

.logo {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--accent);
  color: white;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand-name {
  font-family: "Fraunces", "Georgia", serif;
  font-size: 1.1rem;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.95rem;
  color: var(--muted);
}

.nav-links a {
  padding: 4px 0;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.hero {
  padding: 72px 0 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  align-items: center;
}

.eyebrow {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent-strong);
  font-weight: 600;
  margin-bottom: 16px;
}

.hero h1 {
  font-family: "Fraunces", "Georgia", serif;
  font-size: clamp(2.6rem, 4vw, 3.8rem);
  margin: 0 0 16px;
}

.hero p {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.hero-card {
  background: linear-gradient(155deg, #ffffff, #f0f7f5);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.hero-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.hero-card li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.hero-card span {
  font-weight: 600;
}

.icon {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  flex-shrink: 0;
}

.icon svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.badge {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.8rem;
  padding: 6px 10px;
  border-radius: 999px;
  margin-top: 16px;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn.primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 18px 30px -22px rgba(15, 118, 110, 0.9);
}

.btn.ghost {
  border-color: var(--accent);
  color: var(--accent-strong);
  background: white;
}

.btn:hover {
  transform: translateY(-1px);
}

.section-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 28px;
  margin: 24px 0;
  box-shadow: var(--shadow);
}

.section-card h2 {
  margin-top: 0;
  font-family: "Fraunces", "Georgia", serif;
}

.section-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.feature {
  background: #f9fcfb;
  border-radius: 16px;
  padding: 16px;
  border: 1px solid #e4efec;
}

.feature h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

code,
pre {
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

pre {
  background: #0c1d1d;
  color: #e4f0f0;
  padding: 16px;
  border-radius: 16px;
  overflow-x: auto;
  line-height: 1.55;
  border: 1px solid rgba(228, 240, 240, 0.12);
}

.inline-code {
  background: #eaf4f2;
  padding: 2px 6px;
  border-radius: 6px;
  border: 1px solid #d7e5e1;
}

.code-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.callout {
  background: #eaf4f2;
  border-left: 4px solid var(--accent);
  padding: 12px 16px;
  border-radius: 12px;
  color: var(--accent-strong);
}

ol {
  padding-left: 20px;
  color: var(--muted);
}

footer {
  padding: 32px 0 48px;
  color: var(--muted);
  text-align: center;
}

.back-top {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  color: var(--accent-strong);
  font-weight: 600;
}

@media (max-width: 780px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    width: 100%;
  }
}