:root {
  color-scheme: light dark;
  --bg: #f5f2ea;
  --surface: rgba(255, 255, 255, 0.78);
  --text: #1f2a28;
  --muted: #62706c;
  --accent: #176b5b;
  --border: rgba(31, 42, 40, 0.12);
  --shadow: 0 24px 70px rgba(31, 42, 40, 0.1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111715;
    --surface: rgba(27, 36, 33, 0.86);
    --text: #edf3f0;
    --muted: #a8b5b0;
    --accent: #76d5bd;
    --border: rgba(237, 243, 240, 0.12);
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 8%, rgba(214, 176, 94, 0.18), transparent 34rem),
    radial-gradient(circle at 88% 14%, rgba(23, 107, 91, 0.15), transparent 30rem),
    var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", sans-serif;
  line-height: 1.65;
}

.wrap { width: min(920px, calc(100% - 32px)); margin: 0 auto; }

header { padding: 28px 0 8px; }

nav { display: flex; align-items: center; justify-content: space-between; gap: 18px; }

.brand { color: var(--text); font-weight: 750; letter-spacing: -0.02em; text-decoration: none; }

.nav-links { display: flex; gap: 18px; }

.nav-links a, .text-link { color: var(--accent); text-decoration: none; }

main { padding: 56px 0 72px; }

.hero, .paper {
  border: 1px solid var(--border);
  border-radius: 30px;
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px);
}

.hero { padding: clamp(36px, 7vw, 76px); }
.paper { padding: clamp(28px, 5vw, 54px); }

.eyebrow { margin: 0 0 12px; color: var(--accent); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }

h1 { margin: 0; max-width: 760px; font-size: clamp(2.35rem, 7vw, 5.2rem); line-height: 1.02; letter-spacing: -0.055em; }
.paper h1 { font-size: clamp(2.2rem, 6vw, 4rem); }
h2 { margin-top: 2.25rem; font-size: 1.35rem; letter-spacing: -0.02em; }
p, li { color: var(--muted); }
.lede { max-width: 680px; margin: 24px 0 0; font-size: 1.12rem; }

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; padding: 12px 18px; border-radius: 999px; background: var(--accent); color: var(--bg); font-weight: 700; text-decoration: none; }
.button.secondary { border: 1px solid var(--border); background: transparent; color: var(--text); }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 34px; }
.card { padding: 22px; border: 1px solid var(--border); border-radius: 22px; }
.card h2 { margin: 0 0 8px; }
.card p { margin: 0; }

.lang { padding-top: 28px; margin-top: 28px; border-top: 1px solid var(--border); }
.updated { margin-top: 34px; font-size: 0.92rem; }
footer { padding: 0 0 34px; color: var(--muted); font-size: 0.9rem; }

@media (max-width: 720px) {
  .grid { grid-template-columns: 1fr; }
  nav { align-items: flex-start; flex-direction: column; }
  .nav-links { flex-wrap: wrap; }
}