:root {
  --ink: #11131a;
  --graphite: #22242b;
  --muted: #6f716f;
  --paper: #f8f5ee;
  --ivory: #fffdf8;
  --gold: #caa65a;
  --gold-deep: #8f6828;
  --teal: #0f6c67;
  --ruby: #8c263b;
  --line: rgba(17, 19, 26, 0.12);
  --shadow: 0 24px 80px rgba(17, 19, 26, 0.18);
  --radius: 8px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", Meiryo, sans-serif;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  width: 100%;
  height: auto;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 28px;
  align-items: center;
  padding: 14px clamp(18px, 4vw, 46px);
  background: rgba(17, 19, 26, 0.88);
  color: var(--ivory);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.brand {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: var(--ink);
  background: linear-gradient(145deg, #f4dfaa, #b88938);
  border-radius: 50%;
  font-family: Georgia, serif;
  letter-spacing: 0;
}

.brand-text {
  font-size: 0.95rem;
}

.header-nav {
  display: flex;
  justify-content: flex-end;
  gap: 24px;
  color: rgba(255, 253, 248, 0.76);
  font-size: 0.86rem;
}

.header-nav a,
.header-cta,
.button {
  text-decoration: none;
}

.header-nav a:hover,
.company-section a:hover {
  color: var(--gold);
}

.header-cta {
  padding: 9px 16px;
  border: 1px solid rgba(255, 253, 248, 0.34);
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 700;
}

.hero {
  position: relative;
  min-height: min(760px, calc(100vh - 40px));
  display: grid;
  align-items: end;
  overflow: hidden;
  color: var(--ivory);
  background: var(--ink);
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center right;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(10, 11, 15, 0.90) 0%, rgba(10, 11, 15, 0.70) 38%, rgba(10, 11, 15, 0.26) 70%, rgba(10, 11, 15, 0.42) 100%),
    linear-gradient(0deg, rgba(10, 11, 15, 0.72) 0%, rgba(10, 11, 15, 0.04) 42%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 92px 0 42px;
}

.eyebrow {
  display: inline-flex;
  width: fit-content;
  margin: 0 0 18px;
  padding: 6px 12px;
  color: #ffe5a7;
  background: rgba(202, 166, 90, 0.16);
  border: 1px solid rgba(202, 166, 90, 0.42);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.eyebrow.dark {
  color: var(--gold-deep);
  background: rgba(202, 166, 90, 0.14);
  border-color: rgba(202, 166, 90, 0.28);
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.5rem, 6vw, 5.4rem);
  line-height: 1.05;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 660px;
  margin: 26px 0 0;
  color: rgba(255, 253, 248, 0.82);
  font-size: clamp(1rem, 1.8vw, 1.25rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 800;
  line-height: 1.2;
}

.button-primary {
  color: var(--ink);
  background: var(--gold);
  box-shadow: 0 16px 36px rgba(202, 166, 90, 0.28);
}

.button-primary:hover {
  background: #e0bf70;
}

.button-secondary {
  color: var(--ivory);
  border: 1px solid rgba(255, 253, 248, 0.36);
  background: rgba(255, 253, 248, 0.08);
}

.hero-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 900px;
  margin: 66px 0 0;
  overflow: hidden;
  border: 1px solid rgba(255, 253, 248, 0.16);
  border-radius: var(--radius);
  background: rgba(255, 253, 248, 0.12);
}

.hero-points div {
  padding: 18px;
  background: rgba(17, 19, 26, 0.55);
}

.hero-points dt {
  margin-bottom: 5px;
  color: var(--gold);
  font-weight: 900;
}

.hero-points dd {
  margin: 0;
  color: rgba(255, 253, 248, 0.78);
  font-size: 0.9rem;
}

.intro-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  justify-content: center;
  padding: 18px 20px;
  color: var(--ivory);
  background: var(--teal);
  font-weight: 800;
  text-align: center;
}

.intro-strip p {
  margin: 0;
}

.split-section,
.feature-band,
.audience-section,
.pricing-section,
.company-section {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(72px, 9vw, 120px) 0;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(300px, 0.98fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
}

.split-reverse .section-image {
  order: 2;
}

.section-image {
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: var(--graphite);
}

.section-image img {
  aspect-ratio: 1.48 / 1;
  object-fit: cover;
}

.section-copy h2,
.section-heading h2,
.final-cta h2 {
  margin: 0;
  font-size: clamp(2rem, 4.2vw, 3.8rem);
  line-height: 1.15;
  letter-spacing: 0;
}

.section-copy p,
.section-heading p,
.final-cta p {
  color: var(--muted);
  font-size: 1rem;
}

.check-list {
  display: grid;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  font-weight: 800;
}

.check-list li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 14px;
  height: 2px;
  background: var(--ruby);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 34px;
}

.feature-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.feature-grid,
.audience-grid,
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.feature-card,
.audience-grid article,
.price-card {
  border-radius: var(--radius);
  background: var(--ivory);
  border: 1px solid var(--line);
}

.feature-card {
  min-height: 250px;
  padding: 24px;
}

.feature-number {
  color: var(--teal);
  font-weight: 900;
  letter-spacing: 0.12em;
}

.feature-card h3,
.audience-grid h3 {
  margin: 28px 0 8px;
  font-size: 1.18rem;
  line-height: 1.35;
}

.feature-card p,
.audience-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.quote-panel {
  margin-top: 30px;
  padding: 24px;
  color: var(--ivory);
  background: var(--graphite);
  border-left: 5px solid var(--gold);
  border-radius: var(--radius);
}

.quote-panel p {
  margin: 0;
  color: var(--ivory);
  font-size: 1.18rem;
  font-weight: 900;
}

.audience-section {
  padding-top: 28px;
}

.audience-grid article {
  padding: 22px;
}

.pricing-section {
  width: 100%;
  max-width: none;
  padding-right: max(20px, calc((100vw - var(--max)) / 2));
  padding-left: max(20px, calc((100vw - var(--max)) / 2));
  background: #ebe3d3;
}

.pricing-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.price-card {
  position: relative;
  padding: 26px;
}

.price-card.featured {
  color: var(--ivory);
  background: var(--ink);
  border-color: rgba(202, 166, 90, 0.55);
  box-shadow: var(--shadow);
}

.plan-label {
  position: absolute;
  top: 18px;
  right: 18px;
  margin: 0;
  padding: 5px 10px;
  color: var(--ink);
  background: var(--gold);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 900;
}

.plan-name {
  margin: 0 0 10px;
  font-weight: 900;
}

.plan-price {
  margin: 0;
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1;
}

.plan-price span {
  margin-left: 4px;
  color: var(--muted);
  font-size: 0.95rem;
}

.featured .plan-price span,
.featured .plan-note,
.featured li {
  color: rgba(255, 253, 248, 0.74);
}

.plan-note {
  min-height: 54px;
  margin: 14px 0 20px;
  color: var(--muted);
}

.price-card ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.price-card li {
  color: var(--graphite);
  font-size: 0.94rem;
}

.price-card li::before {
  content: "✓";
  margin-right: 8px;
  color: var(--teal);
  font-weight: 900;
}

.featured li::before {
  color: var(--gold);
}

.final-cta {
  margin: 0;
  padding: clamp(72px, 10vw, 126px) 20px;
  color: var(--ivory);
  text-align: center;
  background:
    linear-gradient(rgba(17, 19, 26, 0.70), rgba(17, 19, 26, 0.82)),
    url("./assets/hero-jewelry-concierge.png") center / cover;
}

.final-cta h2,
.final-cta p {
  max-width: 860px;
  margin-right: auto;
  margin-left: auto;
}

.final-cta p {
  color: rgba(255, 253, 248, 0.78);
}

.company-section {
  padding-top: 64px;
  padding-bottom: 64px;
}

.company-section h2 {
  margin: 0 0 20px;
  font-size: 1.45rem;
}

.company-section dl {
  display: grid;
  margin: 0;
  border-top: 1px solid var(--line);
}

.company-section div {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 24px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.company-section dt {
  color: var(--muted);
  font-weight: 800;
}

.company-section dd {
  margin: 0;
}

.site-footer {
  padding: 28px 20px;
  color: rgba(255, 253, 248, 0.62);
  background: var(--ink);
  text-align: center;
  font-size: 0.88rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 920px) {
  .site-header {
    grid-template-columns: auto auto;
  }

  .header-nav {
    display: none;
  }

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

  .split-reverse .section-image {
    order: 0;
  }

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

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

@media (max-width: 540px) {
  .pricing-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    gap: 12px;
    padding: 12px 16px;
  }

  .brand-text {
    font-size: 0.82rem;
  }

  .header-cta {
    padding: 8px 12px;
    font-size: 0.78rem;
  }

  .hero {
    min-height: 720px;
  }

  .hero-media img {
    object-position: 62% center;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(10, 11, 15, 0.92), rgba(10, 11, 15, 0.54)),
      linear-gradient(0deg, rgba(10, 11, 15, 0.84), rgba(10, 11, 15, 0.16));
  }

  .hero-inner {
    width: min(100% - 32px, var(--max));
    padding-bottom: 30px;
  }

  .hero h1 {
    font-size: clamp(2.35rem, 12vw, 3.5rem);
  }

  .hero-points,
  .feature-grid,
  .audience-grid {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .split-section,
  .feature-band,
  .audience-section,
  .company-section {
    width: min(100% - 32px, var(--max));
    padding-top: 66px;
    padding-bottom: 66px;
  }

  .feature-card {
    min-height: auto;
  }

  .company-section div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}