/* ===== Base ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Hiragino Sans", "Noto Sans JP", "Yu Gothic", sans-serif;
  color: #1a1a1a;
  background: #fafaf7;
  line-height: 1.8;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

/* ===== Navigation ===== */
.gnav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 3rem;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}
.logo {
  font-weight: 900;
  font-size: 1.2rem;
  letter-spacing: 0.1em;
  color: #fff;
}
.gnav ul {
  display: flex;
  gap: 2rem;
  list-style: none;
}
.gnav a {
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.3s;
}
.gnav a:hover { color: #ff4d4d; }

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(10,30,60,0.85), rgba(180,30,50,0.75)),
    radial-gradient(circle at 30% 40%, #2a5d3a 0%, #0a1e3c 70%);
  color: #fff;
  display: flex;
  flex-direction: column;
}
.hero-inner {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 4rem 2rem;
}
.hero-lead {
  font-size: 1rem;
  letter-spacing: 0.3em;
  margin-bottom: 1rem;
  opacity: 0.8;
}
.hero-title {
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 2rem;
  text-shadow: 0 4px 30px rgba(0,0,0,0.5);
}
.hero-sub {
  max-width: 600px;
  font-size: 1.05rem;
  margin-bottom: 3rem;
  opacity: 0.9;
}
.btn-primary {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: #ff4d4d;
  color: #fff;
  border-radius: 50px;
  font-weight: 700;
  transition: all 0.3s;
  box-shadow: 0 8px 25px rgba(255,77,77,0.4);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(255,77,77,0.6);
}

/* ===== Page Header ===== */
.page-header {
  background:
    linear-gradient(135deg, rgba(10,30,60,0.9), rgba(180,30,50,0.7)),
    radial-gradient(circle at 70% 30%, #2a5d3a 0%, #0a1e3c 70%);
  color: #fff;
  padding: 8rem 2rem 5rem;
  text-align: center;
}
.page-header h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 1rem;
  font-weight: 900;
}
.page-header p { opacity: 0.85; font-size: 1.1rem; }

/* ===== Sections ===== */
main { padding: 5rem 2rem; max-width: 1200px; margin: 0 auto; }
section { margin-bottom: 5rem; }
h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
  text-align: center;
  font-weight: 900;
  position: relative;
  padding-bottom: 1rem;
}
h2::after {
  content: "";
  display: block;
  width: 60px;
  height: 4px;
  background: #ff4d4d;
  margin: 1rem auto 0;
  border-radius: 2px;
}

/* ===== Intro ===== */
.intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 5rem;
}
.intro p { font-size: 1.1rem; }

/* ===== Cards ===== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}
.card {
  background: #fff;
  padding: 2.5rem 2rem;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.06);
  transition: all 0.3s;
  border-top: 4px solid #ff4d4d;
}
.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}
.card-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}
.card h3 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: #0a1e3c;
}

/* ===== Quote ===== */
.quote {
  background: linear-gradient(135deg, #0a1e3c, #1a3a6c);
  color: #fff;
  padding: 5rem 2rem;
  text-align: center;
  border-radius: 20px;
}
.quote blockquote {
  font-size: 1.5rem;
  font-style: italic;
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
}
.quote cite {
  display: block;
  margin-top: 1.5rem;
  font-size: 1rem;
  opacity: 0.7;
  font-style: normal;
}

/* ===== Timeline ===== */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 2rem;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, #ff4d4d, #0a1e3c);
}
.tl-item {
  position: relative;
  padding: 1.5rem 0 2rem 2rem;
}
.tl-item::before {
  content: "";
  position: absolute;
  left: -2.4rem;
  top: 1.8rem;
  width: 16px;
  height: 16px;
  background: #ff4d4d;
  border: 4px solid #fafaf7;
  border-radius: 50%;
  box-shadow: 0 0 0 3px #ff4d4d;
}
.tl-year {
  font-size: 2rem;
  font-weight: 900;
  color: #ff4d4d;
  margin-bottom: 0.5rem;
}
.tl-body h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: #0a1e3c;
}

/* ===== Charm Grid ===== */
.charm-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}
.charm {
  background: #fff;
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.05);
  position: relative;
  overflow: hidden;
  transition: all 0.3s;
}
.charm:hover { transform: translateY(-5px); }
.charm .num {
  position: absolute;
  top: -10px;
  right: 10px;
  font-size: 5rem;
  font-weight: 900;
  color: rgba(255,77,77,0.1);
  line-height: 1;
}
.charm h3 {
  color: #0a1e3c;
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

/* ===== Highlight ===== */
.highlight {
  background: linear-gradient(135deg, #1a3a6c, #b41e32);
  color: #fff;
  padding: 4rem 3rem;
  border-radius: 20px;
  text-align: center;
}
.highlight h2 { color: #fff; }
.highlight h2::after { background: #fff; }
.highlight p { font-size: 1.1rem; margin-bottom: 1rem; }
.highlight strong { color: #ffd700; font-size: 1.3rem; }

/* ===== Legends ===== */
.legends-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}
.legend {
  background: #fff;
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.05);
  text-align: center;
  transition: all 0.3s;
  border-bottom: 4px solid #0a1e3c;
}
.legend:hover {
  transform: translateY(-5px);
  border-bottom-color: #ff4d4d;
}
.legend-num {
  font-size: 4rem;
  font-weight: 900;
  color: #ff4d4d;
  line-height: 1;
  margin-bottom: 0.5rem;
}
.legend h3 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
  color: #0a1e3c;
}
.legend .era {
  font-size: 0.85rem;
  color: #888;
  margin-bottom: 1rem;
}

/* ===== Stadiums ===== */
.stadiums {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}
.stadium {
  background: #fff;
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.05);
  border-left: 5px solid #2a5d3a;
}
.stadium h3 {
  color: #0a1e3c;
  margin-bottom: 0.5rem;
  font-size: 1.3rem;
}
.stadium .team {
  color: #ff4d4d;
  font-weight: 700;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

/* ===== Guide ===== */
.guide {
  background: #fff;
  padding: 3rem;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.06);
}
.guide ol {
  max-width: 700px;
  margin: 0 auto;
  padding-left: 1.5rem;
}
.guide li {
  margin-bottom: 1.2rem;
  line-height: 1.7;
}

/* ===== Footer ===== */
footer {
  background: #0a1e3c;
  color: #fff;
  text-align: center;
  padding: 2rem;
  font-size: 0.9rem;
  opacity: 0.8;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .gnav {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }
  .gnav ul { flex-wrap: wrap; justify-content: center; gap: 1rem; }
  main { padding: 3rem 1rem; }
  .highlight, .guide { padding: 2rem 1.5rem; }
}