/* ベースの文字色やサイズをまとめて定義 */
:root {
  color-scheme: light;
  --bg-start: #eaf7ff;
  --bg-end: #0f4c81;
  --text-main: #0d2f4b;
  --text-soft: #48627a;
  --accent: #2f7df6;
  --accent-dark: #144f9c;
  --white: #ffffff;
  --shadow: 0 18px 42px rgba(9, 33, 61, 0.16);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Yu Gothic UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
  color: var(--text-main);
  background: linear-gradient(135deg, var(--bg-start) 0%, #f7fbff 45%, var(--bg-end) 100%);
  padding: 1rem;
  animation: fade-in 0.6s ease both;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.7), transparent 40%);
  pointer-events: none;
}

.page-shell {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding-top: 0.5rem;
}

.glass-card {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: var(--shadow);
  border-radius: 24px;
}

.hero {
  padding: 1.5rem 1.2rem;
  text-align: center;
}

.hero__badge {
  display: inline-block;
  margin: 0 0 0.75rem;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  background: rgba(47, 125, 246, 0.12);
  color: var(--accent-dark);
  font-weight: 700;
  letter-spacing: 0.08em;
}

h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.7rem, 5vw, 2.6rem);
  line-height: 1.25;
}

.hero__text {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.7;
}

.menu-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.menu-card {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 1.2rem 1.1rem;
  border: 0;
  border-radius: 18px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 12px 30px rgba(9, 33, 61, 0.12);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.menu-card:hover,
.menu-card:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 18px 35px rgba(9, 33, 61, 0.18);
  background: rgba(255, 255, 255, 1);
}

.menu-card__icon {
  display: none;
}

.footer {
  text-align: center;
  padding: 1.5rem 1rem 2rem;
  color: var(--white);
  font-size: 0.95rem;
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 700px) {
  body {
    padding: 2rem;
  }

  .menu-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}