:root {
  --bg: #f3f5f4;
  --surface: #ffffff;
  --ink: #132420;
  --muted: #4b615b;
  --accent: #0f7665;
  --accent-strong: #0b5f51;
  --line: #d8e0dd;
  --max: 1100px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 20% 10%, #dfe9e4 0, transparent 45%),
    var(--bg);
  line-height: 1.6;
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image: linear-gradient(to right, rgba(19, 36, 32, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(19, 36, 32, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.45), transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.container {
  width: min(var(--max), calc(100% - 2.5rem));
  margin: 0 auto;
}

.narrow {
  max-width: 760px;
}

.section {
  padding: 4.5rem 0;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
  background: rgba(243, 245, 244, 0.86);
  border-bottom: 1px solid var(--line);
  z-index: 20;
}

.nav-wrap {
  min-height: 4.3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  text-decoration: none;
  color: var(--ink);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.96rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1rem;
  padding: 0;
  margin: 0;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.brand:hover,
.brand:focus-visible {
  color: var(--accent);
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin-top: 0;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  max-width: 14ch;
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.08rem;
  margin-bottom: 0.35rem;
}

p {
  margin: 0 0 1rem;
}

.eyebrow {
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 600;
  color: var(--accent-strong);
  font-size: 0.8rem;
}

.lead {
  max-width: 60ch;
  color: var(--muted);
  font-size: 1.08rem;
}

.hero {
  padding-top: 5.5rem;
}

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

.hero-card,
.card,
.contact-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.2rem 1.2rem;
  box-shadow: 0 8px 24px rgba(19, 36, 32, 0.05);
}

.hero-card h2 {
  font-size: 1rem;
  margin-bottom: 0.65rem;
}

.hero-card ul,
.feature-list,
.card ul {
  margin: 0;
  padding-left: 1.1rem;
}

.cards {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.note {
  color: var(--muted);
  margin-top: 1rem;
  border-left: 3px solid var(--accent);
  padding-left: 0.8rem;
}

.steps {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 1rem;
}

.contact {
  padding-bottom: 5.2rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1rem;
  align-items: start;
}

.contact-card p {
  margin-bottom: 0.2rem;
  font-family: "IBM Plex Mono", monospace;
  color: var(--muted);
  font-size: 0.88rem;
}

.contact-card a:not(.cta) {
  color: var(--ink);
  display: inline-block;
  margin-bottom: 1rem;
  font-weight: 600;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  padding: 0.7rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--accent-strong);
  background: var(--accent);
  color: #f4fffc;
  font-weight: 600;
  transition: background 0.2s ease, transform 0.2s ease;
}

.cta:hover,
.cta:focus-visible {
  background: var(--accent-strong);
  transform: translateY(-1px);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 55%, white);
  outline-offset: 2px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #ecf1ef;
  padding: 1.2rem 0;
}

.site-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 980px) {
  .cards {
    grid-template-columns: 1fr;
  }

  .hero-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .nav-wrap {
    flex-direction: column;
    justify-content: center;
    padding: 0.7rem 0;
    align-items: flex-start;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 0.7rem;
  }

  .section {
    padding: 3.3rem 0;
  }
}