:root {
  --paper: #f4ede2;
  --paper-2: #efe6d6;
  --ink: #2c3a2e;
  --ink-soft: #5a6a5c;
  --line: #d8cdb8;
  --green: #7d9b76;
  --green-deep: #41583f;
  --mustard: #f2c94c;
  --card: #fbf8f1;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(60, 70, 50, 0.10);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
}

a { color: var(--green-deep); }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 1.4rem;
  background: rgba(244, 237, 226, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}
.brand-mark { font-size: 1.3rem; }

.site-header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem;
}
.site-header nav a {
  text-decoration: none;
  color: var(--ink-soft);
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  font-size: 0.95rem;
}
.site-header nav a:hover { background: var(--paper-2); color: var(--ink); }
.site-header nav a.active { background: var(--green-deep); color: #f7f4ec; }

/* ---------- hero ---------- */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
  max-width: 1080px;
  margin: 0 auto;
  padding: 3.2rem 1.4rem 2.2rem;
}

.hero-kicker {
  margin: 0 0 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.hero h1 {
  margin: 0 0 0.9rem;
  font-size: clamp(2rem, 4.6vw, 3.2rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
}

.hero-lead {
  margin: 0;
  max-width: 34rem;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.hero-actions { margin-top: 1.4rem; display: flex; gap: 0.7rem; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  background: var(--green-deep);
  color: #f7f4ec;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid var(--green-deep);
}
.btn:hover { background: #33462f; }
.btn-ghost {
  background: transparent;
  color: var(--green-deep);
  border: 1px solid var(--green);
}
.btn-ghost:hover { background: rgba(125, 155, 118, 0.14); }

.hero-art {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ---------- stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.9rem;
  max-width: 1080px;
  margin: 0 auto 1rem;
  padding: 0 1.4rem;
}
.stat {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 0.8rem;
  text-align: center;
}
.stat-num { display: block; font-size: 1.7rem; font-weight: 700; color: var(--green-deep); }
.stat-cap { font-size: 0.85rem; color: var(--ink-soft); }

/* ---------- blocks ---------- */
.block { max-width: 1080px; margin: 0 auto; padding: 2rem 1.4rem; }
.block h2 { font-size: 1.6rem; margin: 0 0 1.1rem; letter-spacing: -0.01em; }
.block-alt { background: var(--paper-2); max-width: none; }
.block-alt .block-inner { max-width: 1080px; margin: 0 auto; }

/* ---------- cards ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card h3 { margin: 0.9rem 1rem 0.3rem; font-size: 1.08rem; }
.card h3 a { text-decoration: none; }
.card h3 a:hover { text-decoration: underline; }
.card p { margin: 0 1rem 1rem; color: var(--ink-soft); font-size: 0.95rem; }
.card-art { height: 96px; }
.card-art-1 { background: linear-gradient(120deg, #a8c3a0, #7d9b76 60%, #5c7a58); }
.card-art-2 { background: linear-gradient(120deg, #9db8c9, #6f93a8 60%, #4f7285); }
.card-art-3 { background: linear-gradient(120deg, #e6c98a, #d9a85e 60%, #b98443); }

/* ---------- principles ---------- */
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.principle { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem; }
.principle span { font-size: 1.5rem; }
.principle h3 { margin: 0.5rem 0 0.3rem; font-size: 1.05rem; }
.principle p { margin: 0; color: var(--ink-soft); font-size: 0.95rem; }

/* ---------- pages ---------- */
.page-hero {
  max-width: 1080px;
  margin: 0 auto;
  padding: 2.6rem 1.4rem 0.6rem;
}
.page-hero h1 { margin: 0 0 0.5rem; font-size: clamp(1.8rem, 4vw, 2.6rem); letter-spacing: -0.01em; }
.page-hero p { margin: 0; color: var(--ink-soft); max-width: 46rem; }

.prose { max-width: 760px; margin: 0 auto; padding: 1.2rem 1.4rem 2.5rem; }
.prose article { margin-bottom: 2.4rem; }
.prose h2 { font-size: 1.45rem; margin: 0 0 0.6rem; }
.prose h2 a { text-decoration: none; }
.prose h2 a:hover { text-decoration: underline; }
.prose .meta { font-size: 0.85rem; color: var(--ink-soft); margin: 0 0 0.7rem; }
.prose p { margin: 0 0 0.8rem; }

/* route rows */
.route {
  display: grid;
  grid-template-columns: 4.5rem 1fr auto;
  gap: 1rem;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  margin-bottom: 0.9rem;
}
.route-num {
  width: 4.5rem; height: 4.5rem;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: var(--paper-2);
  font-size: 1.5rem;
}
.route h3 { margin: 0 0 0.2rem; font-size: 1.1rem; }
.route p { margin: 0; color: var(--ink-soft); font-size: 0.95rem; }
.route-facts { text-align: right; font-size: 0.88rem; color: var(--ink-soft); white-space: nowrap; }
.route-facts b { display: block; color: var(--ink); font-size: 1rem; }
.tag {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  background: rgba(125, 155, 118, 0.18);
  color: var(--green-deep);
  margin-top: 0.35rem;
}

/* about */
.about-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 1.4rem; align-items: start; }
.about-side {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.2rem;
}
.about-side h3 { margin: 0 0 0.6rem; font-size: 1.05rem; }
.about-side ul { margin: 0; padding-left: 1.1rem; color: var(--ink-soft); font-size: 0.95rem; }
.about-side li { margin-bottom: 0.35rem; }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 2rem;
  padding: 1.4rem;
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.92rem;
}
.site-footer p { margin: 0.2rem 0; }
.footer-small { font-size: 0.8rem; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding-top: 2rem; }
  .hero-art { order: -1; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .cards, .principles { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .route { grid-template-columns: 1fr; text-align: left; }
  .route-facts { text-align: left; }
  .route-num { width: 3.2rem; height: 3.2rem; font-size: 1.1rem; }
}