:root {
  --soil: #3b2414;
  --soil-2: #5a3a22;
  --tunnel: #8a5d36;
  --sand: #e9c891;
  --paper: #f7ecd6;
  --ink: #2a1a0e;
  --grass: #3fae3a;
  --grass-dark: #2b7f28;
  --sky: #9cc7e8;
  --red: #c4231c;
  --button: #2b56b5;
  --radius: 14px;
  --wide: 1080px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--button); }

.wrap { width: 100%; max-width: var(--wide); margin: 0 auto; padding: 0 16px; }

/* top bar */
.bar { background: var(--soil); color: var(--sand); }
.bar .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 58px; }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-weight: 800; font-size: 20px; letter-spacing: .5px; white-space: nowrap; }
.brand img { width: 36px; height: 36px; border-radius: 8px; }
.bar nav { display: flex; gap: 18px; flex-wrap: wrap; }
.bar nav a { color: var(--sand); text-decoration: none; font-weight: 600; font-size: 15px; }
.bar nav a:hover { color: #fff; }

/* hero */
.hero { background: linear-gradient(#a7d2ef, #f5d9a0 62%, var(--grass) 62.2%, var(--grass-dark)); }
.hero .wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 28px; align-items: center; padding-top: 34px; padding-bottom: 34px; }
.hero picture img { border-radius: var(--radius); box-shadow: 0 14px 40px rgba(0,0,0,.28); }
.hero h1 { font-size: clamp(32px, 5vw, 50px); line-height: 1.1; margin: 0 0 12px; color: var(--soil); }
.hero p.lead { font-size: 19px; margin: 0 0 20px; color: var(--soil); }
.hero .card { background: rgba(255,255,255,.82); border-radius: var(--radius); padding: 22px 22px 24px; }

.btns { display: flex; flex-wrap: wrap; gap: 10px; }
.btn {
  display: inline-block; padding: 12px 20px; border-radius: 10px; text-decoration: none; font-weight: 700;
  background: var(--button); color: #fff; border: 2px solid rgba(0,0,0,.2);
}
.btn.alt { background: #fff; color: var(--soil); }
.note { font-size: 14px; color: #6b5440; margin: 12px 0 0; }

/* sections */
section { padding: 52px 0; }
section.dark { background: var(--soil); color: var(--sand); }
section.dark h2 { color: #fff; }
section.tunnel { background: var(--soil-2); color: var(--sand); }
section.tunnel h2 { color: #fff; }
h2 { font-size: clamp(26px, 3.4vw, 34px); line-height: 1.2; margin: 0 0 10px; color: var(--soil); }
h3 { font-size: 20px; margin: 0 0 6px; }
.sub { margin: 0 0 26px; max-width: 70ch; }

.grid { display: grid; gap: 22px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
figure { margin: 0; }
figure img { border-radius: 10px; box-shadow: 0 6px 18px rgba(0,0,0,.25); }
figcaption { font-size: 15px; margin-top: 10px; }

.modes { display: grid; gap: 18px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.mode { background: #fff; border-radius: var(--radius); padding: 20px; border: 2px solid #e4d2ad; }
.mode .tag { display: inline-block; font-size: 12px; font-weight: 800; letter-spacing: .6px; text-transform: uppercase; padding: 3px 9px; border-radius: 999px; margin-bottom: 10px; }
.tag.free { background: #d8f2d0; color: #1f6b1b; }
.tag.full { background: #fde1c4; color: #8a3f00; }
.mode p { margin: 0; }

.split { display: grid; gap: 30px; grid-template-columns: 1fr 1fr; align-items: center; }
.list { margin: 0; padding-left: 20px; }
.list li { margin: 6px 0; }

/* plain text pages */
.page { max-width: 760px; padding: 40px 16px 60px; }
.page h1 { font-size: clamp(28px, 4vw, 38px); margin: 0 0 6px; color: var(--soil); }
.page h2 { font-size: 22px; margin: 32px 0 8px; }
.page .meta { color: #6b5440; font-size: 15px; margin: 0 0 24px; }
.page table { border-collapse: collapse; width: 100%; font-size: 15px; margin: 8px 0; }
.page th, .page td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid #e4d2ad; }

footer { background: #24150b; color: #c9b08a; font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; padding-top: 22px; padding-bottom: 22px; }
footer a { color: #f0d9a8; }

@media (max-width: 820px) {
  .hero .wrap, .split { grid-template-columns: 1fr; }
  .grid, .grid.three, .modes { grid-template-columns: 1fr; }
  section { padding: 40px 0; }
  .bar nav { gap: 12px; }
}
@media (max-width: 520px) {
  .bar .wrap { flex-wrap: wrap; padding-top: 8px; padding-bottom: 8px; }
  .bar nav { width: 100%; gap: 14px; }
  .bar nav a { font-size: 14px; }
}