:root {
  color-scheme: light;
  --ink: #0f1f1f;
  --ink-soft: #324645;
  --accent: #0f2b2b;
  --accent-bright: #1c7f7a;
  --sand: #f3efe7;
  --mist: #dbe8e4;
  --glow: #f7d9b8;
  --card: #ffffff;
  --shadow: 0 24px 60px rgba(15, 31, 31, 0.12);
  --radius: 20px;
  --radius-lg: 32px;
  --max-width: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at top, #f7f1e8 0%, var(--mist) 55%, #cde0dc 100%);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(15, 43, 43, 0.04), transparent 40%),
    radial-gradient(circle at 80% 0%, rgba(247, 217, 184, 0.2), transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(15, 127, 122, 0.08), transparent 35%);
  pointer-events: none;
  z-index: -1;
}

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

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

.container {
  width: min(100% - 3rem, var(--max-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(243, 239, 231, 0.7);
  border-bottom: 1px solid rgba(15, 31, 31, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 0;
  gap: 1.5rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #fff;
  font-family: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  font-size: 1.2rem;
}

.logo-text {
  font-size: 1.05rem;
}

.nav {
  display: flex;
  gap: 1.5rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.nav a {
  position: relative;
  padding-bottom: 0.2rem;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent-bright);
  transition: width 0.3s ease;
}

.nav a:hover::after,
.nav a:focus-visible::after {
  width: 100%;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(15, 43, 43, 0.12);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-ghost {
  border-color: rgba(15, 43, 43, 0.2);
  color: var(--accent);
  background: rgba(255, 255, 255, 0.7);
}

.hero {
  padding: 5rem 0 4rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}

.hero h1 {
  font-family: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(2.8rem, 4vw, 4.2rem);
  margin: 0 0 1rem;
  line-height: 1.1;
}

.hero .lead {
  font-size: 1.1rem;
  color: var(--ink-soft);
  max-width: 34rem;
}

.eyebrow {
  text-transform: none;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  margin: 0 0 1rem;
  color: var(--accent-bright);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 2rem 0 2.5rem;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.meta-item {
  padding: 0.8rem 1rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(15, 31, 31, 0.08);
}

.meta-label {
  display: block;
  font-size: 0.75rem;
  color: var(--ink-soft);
}

.meta-value {
  font-weight: 600;
}

.hero-panel {
  padding: 2rem;
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow);
  border: 1px solid rgba(15, 31, 31, 0.08);
}

.panel-header {
  margin-bottom: 1.5rem;
}

.panel-title {
  font-weight: 600;
  margin: 0 0 0.3rem;
}

.panel-subtitle {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.signal-grid {
  display: grid;
  gap: 1rem;
}

.signal-card {
  padding: 1rem;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(15, 43, 43, 0.04), rgba(28, 127, 122, 0.12));
  border: 1px solid rgba(15, 31, 31, 0.08);
}

.signal-label {
  margin: 0 0 0.4rem;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.signal-value {
  margin: 0 0 0.2rem;
  font-size: 1.4rem;
  font-weight: 600;
}

.signal-note {
  margin: 0;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.panel-footer {
  margin-top: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.dot {
  width: 6px;
  height: 6px;
  background: var(--accent-bright);
  border-radius: 999px;
}

.section {
  padding: 4.5rem 0;
}

.section-alt {
  background: rgba(255, 255, 255, 0.5);
  border-top: 1px solid rgba(15, 31, 31, 0.08);
  border-bottom: 1px solid rgba(15, 31, 31, 0.08);
}

.section-products {
  background: rgba(255, 255, 255, 0.2);
}


.section h2 {
  font-family: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(2rem, 3vw, 2.6rem);
  margin: 0 0 1rem;
}

.section p {
  color: var(--ink-soft);
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 3rem;
  align-items: start;
}

.about-points {
  display: grid;
  gap: 1.5rem;
}

.point {
  padding: 1.2rem 1.4rem;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(15, 31, 31, 0.08);
}

.section-header {
  max-width: 42rem;
  margin-bottom: 2.5rem;
}

.card-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.product-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}


.card {
  padding: 1.8rem;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid rgba(15, 31, 31, 0.08);
  box-shadow: var(--shadow);
}

.product-card {
  padding: 1.8rem;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid rgba(15, 31, 31, 0.08);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.product-card h3 {
  margin: 0;
  font-size: 1.1rem;
}

.product-link {
  color: inherit;
  text-decoration: none;
  position: relative;
  display: inline-block;
}

.product-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--accent-bright);
  transition: width 0.3s ease;
}

.product-link:hover::after,
.product-link:focus-visible::after {
  width: 100%;
}

.product-card p {
  margin: 0;
}

.product-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.product-status {
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(28, 127, 122, 0.15);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
}


.card ul {
  padding-left: 1.1rem;
  margin: 1rem 0 0;
  color: var(--ink-soft);
}

.card li {
  margin-bottom: 0.4rem;
}


.section-cta {
  padding: 5rem 0;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 2.5rem 3rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, rgba(15, 43, 43, 0.95), rgba(28, 127, 122, 0.9));
  color: #fff;
}

.cta-inner p {
  color: rgba(255, 255, 255, 0.7);
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.cta-actions .btn-ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
  background: transparent;
}

.site-footer {
  padding: 3rem 0;
  background: rgba(243, 239, 231, 0.9);
  border-top: 1px solid rgba(15, 31, 31, 0.08);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.footer-logo {
  font-family: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  font-size: 1.4rem;
  margin: 0 0 0.5rem;
}

.footer-links {
  display: grid;
  gap: 0.6rem;
}

.footer-meta {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.8s ease, transform 0.8s ease;
  transition-delay: var(--delay, 0s);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1100px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

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

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

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 850px) {
  .header-inner {
    flex-wrap: wrap;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
    order: 3;
  }

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

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 2rem, var(--max-width));
  }

  .hero-meta {
    grid-template-columns: 1fr;
  }

  .card-grid,
  .product-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn,
  .nav a::after {
    transition: none;
  }
}