:root {
  --pink-50: #fffafd;
  --pink-100: #ffeef7;
  --pink-300: #ffacd3;
  --pink-500: #ff6fb0;
  --rose-700: #b93472;
  --sky-400: #46d7ff;
  --sky-500: #12bce9;
  --ink: #351927;
  --muted: #765365;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(194, 59, 116, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    "Hiragino Sans", "Yu Gothic", "YuGothic", "Meiryo", system-ui, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 20%, rgba(255, 210, 232, 0.68), transparent 25rem),
    radial-gradient(circle at 88% 12%, rgba(255, 240, 248, 0.92), transparent 22rem),
    linear-gradient(180deg, #fffafd 0%, #fff1f8 48%, #ffffff 100%);
  letter-spacing: 0;
}

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

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 16px 0;
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--sky-500);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: var(--white);
  background: linear-gradient(135deg, #ff7ab6, #ffc4dd);
  box-shadow: 0 10px 24px rgba(255, 111, 176, 0.24);
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px;
  border: 1px solid rgba(248, 95, 158, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
}

.nav a {
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.nav a:hover {
  color: var(--rose-700);
  background: var(--pink-100);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(280px, 0.98fr);
  align-items: center;
  gap: 48px;
  width: min(1120px, calc(100% - 32px));
  min-height: calc(100vh - 68px);
  margin: 0 auto;
  padding: 52px 0 72px;
}

.hero-copy {
  max-width: 620px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--pink-500);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 12px;
  color: var(--sky-500);
  font-size: clamp(64px, 9vw, 116px);
  line-height: 0.92;
  text-shadow: 0 12px 30px rgba(70, 215, 255, 0.24);
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(30px, 5vw, 54px);
  line-height: 1.12;
}

h3 {
  margin-bottom: 12px;
  font-size: 22px;
}

.lead {
  margin-bottom: 18px;
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 900;
  line-height: 1.18;
}

.intro,
.panel p,
.contact-copy p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
}

.intro {
  max-width: 560px;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  color: var(--white);
  background: linear-gradient(135deg, #ff6fb0, #ffb8d9);
  box-shadow: 0 14px 32px rgba(255, 111, 176, 0.25);
}

.button.secondary {
  color: var(--rose-700);
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(248, 95, 158, 0.22);
}

.hero-visual {
  position: relative;
}

.hero-visual img {
  width: min(520px, 100%);
  margin-left: auto;
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.section {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 72px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.panel {
  min-height: 280px;
  padding: 26px;
  border: 1px solid rgba(248, 95, 158, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 12px 30px rgba(194, 59, 116, 0.1);
}

.icon {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--pink-500);
  font-weight: 900;
}

.mood-band {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 1.1fr);
  gap: 28px;
  width: 100%;
  padding: 76px max(16px, calc((100% - 1120px) / 2));
  color: var(--white);
  background:
    linear-gradient(rgba(199, 66, 130, 0.58), rgba(199, 66, 130, 0.58)),
    url("./public/love-visual.png") center/cover;
}

.mood-band .eyebrow {
  color: #ffe4f0;
}

.mood-band h2 {
  max-width: 640px;
  margin-bottom: 0;
}

.mood-list {
  display: flex;
  flex-wrap: wrap;
  align-content: center;
  gap: 12px;
}

.mood-list span {
  padding: 12px 18px;
  border: 1px solid rgba(255, 255, 255, 0.36);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  font-weight: 800;
}

.contact-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.contact-copy {
  max-width: 700px;
}

.footer {
  padding: 32px 16px 48px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 820px) {
  .site-header {
    align-items: flex-start;
  }

  .nav {
    max-width: 58vw;
    overflow-x: auto;
  }

  .hero,
  .mood-band {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 32px;
    padding-top: 36px;
  }

  .hero-visual img {
    margin: 0;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .contact-section {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .site-header {
    width: min(100% - 24px, 1120px);
  }

  .brand {
    font-size: 15px;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
  }

  .nav a {
    padding: 7px 10px;
    font-size: 13px;
  }

  .hero,
  .section {
    width: min(100% - 24px, 1120px);
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .panel {
    min-height: auto;
  }
}