:root {
  color-scheme: light;
  --ink: #3b2b29;
  --muted: #75615d;
  --paper: #fffaf7;
  --surface: #ffffff;
  --accent: #e9824f;
  --accent-dark: #b95739;
  --accent-soft: #fff0e8;
  --coral: #e97867;
  --line: #eee0da;
  --shadow: 0 18px 45px rgba(87, 49, 40, 0.09);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 85% 4%, rgba(233, 120, 103, 0.18), transparent 25rem),
    linear-gradient(180deg, #fff6f1 0, var(--paper) 28rem);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  line-height: 1.75;
}

a { color: var(--accent-dark); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(238, 224, 218, 0.88);
  background: rgba(255, 250, 247, 0.9);
  backdrop-filter: blur(14px);
}

.nav {
  width: min(1080px, calc(100% - 40px));
  height: 68px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
  letter-spacing: .04em;
}

.mark {
  display: block;
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 11px;
  object-fit: cover;
}

.nav-links { display: flex; gap: 22px; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: .92rem; }
.nav-links a:hover { color: var(--accent-dark); }

main { width: min(1080px, calc(100% - 40px)); margin: auto; }

.hero {
  padding: 92px 0 66px;
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  align-items: center;
  gap: 70px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

h1, h2, h3 { line-height: 1.35; }
h1 { margin: 0; font-size: clamp(2.45rem, 7vw, 4.8rem); letter-spacing: -.05em; }
h2 { margin: 0 0 24px; font-size: clamp(1.65rem, 4vw, 2.35rem); letter-spacing: -.025em; }
h3 { margin: 0 0 8px; font-size: 1.05rem; }

.lead { max-width: 42rem; margin: 22px 0 0; color: var(--muted); font-size: 1.05rem; }

.hero-icon {
  display: block;
  width: min(320px, 100%);
  height: auto;
  aspect-ratio: 1;
  border-radius: 22%;
  margin: auto;
}

.section { padding: 64px 0; }
.section-intro { max-width: 42rem; margin: -10px 0 30px; color: var(--muted); }

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: 0 8px 28px rgba(35, 49, 45, .05);
}
.card p { margin: 0; color: var(--muted); }
.card-number { color: var(--accent); font-weight: 800; font-variant-numeric: tabular-nums; }
.sport-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  border-radius: 13px;
  color: white;
  background: linear-gradient(135deg, var(--accent), var(--coral));
  font-size: 1.15rem;
  font-weight: 800;
}
.support-note {
  margin: 22px 0 0;
  padding: 18px 20px;
  border-left: 4px solid var(--coral);
  border-radius: 0 12px 12px 0;
  color: var(--muted);
  background: rgba(255, 255, 255, .72);
}

.faq { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); padding: 18px 2px; }
summary { cursor: pointer; font-weight: 700; }
details p { margin: 12px 0 2px; color: var(--muted); }

.notice {
  padding: 28px;
  border-radius: 20px;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.notice p { margin: 4px 0 0; color: var(--muted); }

.button {
  flex: 0 0 auto;
  display: inline-block;
  padding: 12px 18px;
  border-radius: 12px;
  color: white;
  background: linear-gradient(135deg, var(--accent), var(--coral));
  font-weight: 700;
  text-decoration: none;
}
.button:hover { background: var(--accent-dark); }

.document { width: min(780px, 100%); padding: 70px 0; }
.document .meta { margin: -12px 0 38px; color: var(--muted); }
.document section { margin: 42px 0; }
.document h2 { margin-bottom: 12px; font-size: 1.35rem; }
.document p, .document li { color: #46544f; }

footer {
  width: min(1080px, calc(100% - 40px));
  margin: 60px auto 0;
  padding: 28px 0 40px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: .86rem;
}

@media (max-width: 760px) {
  .nav { width: min(100% - 28px, 1080px); }
  .nav-links { gap: 14px; }
  main { width: min(100% - 28px, 1080px); }
  .hero { padding-top: 58px; grid-template-columns: 1fr; gap: 58px; }
  .hero-copy { text-align: center; }
  .lead { margin-inline: auto; }
  .grid { grid-template-columns: 1fr; }
  .notice { align-items: flex-start; flex-direction: column; }
  footer { width: min(100% - 28px, 1080px); flex-direction: column; }
}