/* assets/css/style.css */
:root {
  --paper: #f5f3ee;
  --surface: #fffdf8;
  --ink: #17231f;
  --muted: #5f6b65;
  --line: #d9ded7;
  --accent: #176b55;
  --accent-soft: #e3efe9;
  --max: 1160px;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.72;
}
a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.container {
  width: min(calc(100% - 32px), var(--max));
  margin: auto;
}

header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(245, 243, 238, 0.96);
  border-bottom: 1px solid var(--line);
}

.nav {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 15px;
  font-weight: 750;
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: #fffdf8;
}

.nav-links {
  display: flex;
  gap: 20px;
  align-items: center;
  font-size: 14px;
  color: var(--muted);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

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

.hero {
  padding: 104px 0 84px;
  border-bottom: 1px solid var(--line);
}

.hero h1 {
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.045em;
  margin: 16px 0 20px;
  max-width: 850px;
}

.hero p {
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
}

.eyebrow {
  display: inline-block;
  padding: 7px 11px;
  border-radius: 3px;
  background: var(--accent-soft);
  border: 1px solid #c4ded2;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 17px;
  border-radius: 5px;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-weight: 700;
  margin-right: 10px;
}

.btn-primary {
  background: var(--accent);
  color: #fffdf8;
}

.btn-secondary {
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--surface);
}

section {
  padding: 64px 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.card {
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 7px 20px rgba(23, 35, 31, 0.04);
}

.card h2,
.card h3 {
  margin-top: 0;
}
.card p {
  color: var(--muted);
}

.card a {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 14px;
}

.content {
  max-width: 820px;
}

.content h2 {
  margin-top: 46px;
  font-size: 30px;
  line-height: 1.15;
}

.content h3 {
  margin-top: 28px;
}

.content p,
.content li {
  color: var(--muted);
}

.content a {
  color: var(--accent);
  font-weight: 700;
}

.breadcrumb {
  padding-top: 28px;
  color: var(--muted);
  font-size: 14px;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

.cta {
  margin-top: 36px;
  padding: 26px 28px;
  border-radius: var(--radius);
  border: 1px solid #c4ded2;
  background: var(--accent-soft);
}

footer {
  margin-top: 60px;
  padding: 32px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

:focus-visible {
  outline: 3px solid #b6d6c8;
  outline-offset: 3px;
}

@media (max-width: 850px) {
  .grid {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }

  .hero {
    padding: 72px 0 58px;
  }

  .hero h1 {
    font-size: clamp(40px, 13vw, 60px);
  }
}