:root {
  --bg: #fffdfc;
  --text: #2e2e38;
  --muted: #636372;
  --accent: #f78d78;
  --accent-strong: #f4755e;
  --yellow: #fff2b2;
  --pink: #ffe0ea;
  --mint: #d8f3ef;
  --lavender: #ece6ff;
  --card-shadow: 0 14px 34px rgba(244, 123, 99, 0.09);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

a { color: inherit; text-decoration: none; }

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.section { padding: 4rem 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 253, 252, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #f2efef;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  font-size: 1.95rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.main-nav {
  display: flex;
  gap: 1.5rem;
  color: #444;
  font-weight: 600;
}

.main-nav a:hover { color: var(--accent); }

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  font-size: clamp(2.25rem, 7vw, 5rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin: 0;
}

h1 {
  margin: 0.4rem 0 1.2rem;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.25;
}

.lead {
  color: var(--muted);
  font-size: clamp(1rem, 2.2vw, 1.35rem);
  max-width: 32ch;
}

.cta {
  margin-top: 1.8rem;
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
  padding: 0.92rem 2rem;
  border-radius: 9999px;
  font-weight: 700;
  box-shadow: 0 12px 24px rgba(244, 117, 94, 0.28);
}

.hero-visual {
  position: relative;
  min-height: 500px;
}

.blob {
  position: absolute;
  border-radius: 999px;
  filter: blur(0.1px);
  opacity: 0.85;
}

.blob-yellow { background: var(--yellow); width: 280px; height: 220px; right: 210px; top: 130px; }
.blob-pink { background: var(--pink); width: 320px; height: 210px; right: 130px; bottom: 40px; }
.blob-mint { background: var(--mint); width: 290px; height: 190px; right: 0; bottom: 10px; }

.phone-card {
  position: absolute;
  width: 260px;
  height: 500px;
  left: 50%;
  transform: translateX(-48%) rotate(-6deg);
  background: linear-gradient(180deg, #fffdf8, #fff8ef);
  border: 7px solid #222;
  border-radius: 42px;
  padding: 1rem;
  box-shadow: 0 20px 38px rgba(0, 0, 0, 0.18);
}

.phone-notch {
  width: 120px;
  height: 20px;
  border-radius: 999px;
  background: #1e1e1e;
  margin: 0.2rem auto 1rem;
}

.phone-logo {
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.06em;
  text-align: center;
  margin: 0;
}

.phone-copy { text-align: center; font-weight: 700; font-size: 0.95rem; }

.phone-icons {
  margin-top: 2.2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  font-size: 2rem;
  text-align: center;
}

.popcorn {
  position: absolute;
  right: 8px;
  top: 120px;
  width: 220px;
  height: 280px;
  border-radius: 22px 22px 26px 26px;
  background: repeating-linear-gradient(
    90deg,
    #fff 0 24px,
    #ffc2ae 24px 48px
  );
  box-shadow: var(--card-shadow);
}

.about {
  background: #f9f9fb;
  border-top: 1px solid #f0eeee;
}

.about-label {
  text-align: center;
  color: #e79a7e;
  letter-spacing: 0.1em;
  font-weight: 700;
}

h2 {
  text-align: center;
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 0.3rem 0 0.8rem;
}

.about-lead {
  text-align: center;
  color: var(--muted);
  max-width: 50ch;
  margin: 0 auto 2.2rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.card {
  background: #fff;
  border-radius: 22px;
  padding: 1.6rem;
  box-shadow: 0 10px 26px rgba(50, 50, 93, 0.05);
}

.icon {
  width: 78px;
  height: 78px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 2rem;
}

.icon-yellow { background: #fff7d0; }
.icon-mint { background: #dbf6f1; }
.icon-pink { background: #ffe6ec; }
.icon-lavender { background: #eee8ff; }

h3 { margin-bottom: 0.4rem; font-size: 1.5rem; }

.site-footer {
  padding: 1.6rem 0 2.8rem;
  text-align: center;
  color: #8a8a95;
}

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual {
    min-height: 420px;
    margin-top: 1.2rem;
  }
  .phone-card {
    left: 42%;
    width: 220px;
    height: 430px;
  }
  .popcorn {
    right: 0;
    top: 130px;
    width: 170px;
    height: 220px;
  }
  .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .main-nav { gap: 0.8rem; font-size: 0.92rem; }
  .hero-visual {
    min-height: 360px;
    transform: scale(0.92);
    transform-origin: top center;
  }
  .card-grid { grid-template-columns: 1fr; }
}