:root {
  --ink: #14201c;
  --muted: #5c6b64;
  --paper: #f3f0e8;
  --card: #fffdf8;
  --line: #d5d0c4;
  --accent: #0f6b5c;
  --accent-soft: #d8efe9;
  --max: 42rem;
  --wide: 68rem;
  --sans: "Sora", "Segoe UI", sans-serif;
  --serif: "Newsreader", "Times New Roman", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  font-family: var(--sans);
  background:
    radial-gradient(1200px 500px at 10% -10%, #dceee8 0%, transparent 55%),
    radial-gradient(900px 420px at 100% 0%, #efe3c4 0%, transparent 50%),
    linear-gradient(180deg, #f7f4ec 0%, var(--paper) 40%, #ebe7dc 100%);
  min-height: 100vh;
  line-height: 1.65;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #0a5247; }

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

.top {
  display: flex; align-items: baseline; justify-content: space-between; gap: 1rem;
  padding: 1.4rem 0 1rem; border-bottom: 1px solid var(--line);
}
.brand {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 600; letter-spacing: -0.02em; color: var(--ink);
  text-decoration: none;
}
.brand span { color: var(--accent); }
.nav { display: flex; gap: 1.1rem; flex-wrap: wrap; font-size: 0.95rem; }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--ink); }

.hero { padding: 4.5rem 0 3rem; display: grid; gap: 1.1rem; }
.hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.05; letter-spacing: -0.03em; font-weight: 600;
  max-width: 14ch;
}
.hero p { margin: 0; max-width: 36rem; color: var(--muted); font-size: 1.1rem; }
.meta { color: var(--muted); font-size: 0.88rem; letter-spacing: 0.02em; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.1rem;
  padding: 0 0 4rem;
}
.card {
  background: color-mix(in srgb, var(--card) 88%, white);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.35rem 1.3rem 1.4rem;
  box-shadow: 0 10px 30px rgba(20, 32, 28, 0.04);
  transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 16px 36px rgba(20, 32, 28, 0.08); }
.card h2 {
  margin: 0.35rem 0 0.55rem;
  font-family: var(--serif);
  font-size: 1.45rem; line-height: 1.2; font-weight: 600;
}
.card h2 a { color: inherit; text-decoration: none; }
.card p { margin: 0; color: var(--muted); }

.article { padding: 3rem 0 4.5rem; }
.article header { margin-bottom: 2rem; }
.article h1 {
  margin: 0.4rem 0 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.12; letter-spacing: -0.02em;
}
.article .body > p { margin: 0 0 1.15rem; font-size: 1.08rem; }
.article .body > p:first-child::first-letter {
  font-family: var(--serif);
  font-size: 3.2rem; float: left; line-height: 0.9;
  padding: 0.15rem 0.45rem 0 0; color: var(--accent);
}
.tag {
  display: inline-block; background: var(--accent-soft); color: var(--accent);
  border-radius: 999px; padding: 0.2rem 0.7rem; font-size: 0.78rem; font-weight: 600;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 1.4rem 0 2.2rem; color: var(--muted); font-size: 0.9rem;
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
}

@media (max-width: 640px) {
  .top { flex-direction: column; align-items: flex-start; }
  .hero { padding-top: 2.8rem; }
}