:root {
  --bg: #ffffff;
  --surface: #f5f8fc;
  --surface-2: #eef4fb;
  --text: #0f172a;
  --muted: #536277;
  --line: #d6dfeb;
  --primary: #0f2f5f;
  --primary-strong: #0a2448;
  --blue-soft: #dfeafb;
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
  --radius: 18px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.narrow { max-width: 860px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(214,223,235,0.8);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 84px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.brand-logo {
  display: block;
  height: 48px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  transition: color .2s ease, background .2s ease, border-color .2s ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--primary);
}

.nav-cta {
  padding: 10px 16px;
  border: 1px solid var(--primary);
  border-radius: 999px;
  color: var(--primary) !important;
}

.nav-cta:hover,
.active-cta {
  background: rgba(15, 47, 95, 0.06);
}

.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: 4px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px 0;
  background: var(--primary);
}

.hero,
.page-hero {
  background: linear-gradient(180deg, rgba(245,248,252,0.95) 0%, rgba(255,255,255,1) 78%);
}

.hero { padding: 108px 0 78px; }
.page-hero { padding: 92px 0 42px; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1,
.page-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  line-height: 1.06;
  letter-spacing: -0.04em;
}

.hero-text,
.page-intro,
.section-subtext {
  color: var(--muted);
  font-size: 1.06rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  border: none;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: .2s ease;
}

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

.btn-primary:hover {
  background: var(--primary-strong);
}

.btn-secondary {
  background: #fff;
  border: 1px solid var(--line);
  color: var(--text);
}

.btn-secondary:hover {
  color: var(--primary);
  border-color: var(--primary);
}

.hero-visual {
  display: grid;
  gap: 18px;
}

.hero-visual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.visual-card {
  background: linear-gradient(135deg, #eef4fb 0%, #dfeafb 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  min-height: 160px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.visual-tall { min-height: 280px; }

.visual-label,
.visual-mini {
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.visual-card h3 {
  margin: 8px 0 8px;
  font-size: 1.4rem;
}

.visual-card p {
  margin: 0;
  color: var(--muted);
}

.section { padding: 88px 0; }
.section-alt { background: var(--surface); }

.section-heading {
  max-width: 760px;
  margin-bottom: 40px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 3vw, 3rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.cards {
  display: grid;
  gap: 22px;
}

.three-up {
  grid-template-columns: repeat(3, 1fr);
}

.card,
.showcase-card,
.stat-card,
.detail-card,
.contact-card,
.contact-form,
.faq-item {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.card h3,
.showcase-card h3,
.detail-card h3,
.contact-card h3,
.faq-item h3 {
  margin: 0 0 14px;
  font-size: 1.18rem;
  line-height: 1.3;
}

.card p,
.showcase-card p,
.detail-card p,
.contact-card p,
.faq-item p {
  margin: 0;
  color: var(--muted);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}

.about-grid p { margin: 0; color: var(--muted); }

.lead {
  margin: 0;
  font-size: 1.22rem;
  line-height: 1.55;
  color: var(--text) !important;
}

.product-showcase {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.showcase-image {
  height: 180px;
  border-radius: 14px;
  margin-bottom: 18px;
  border: 1px solid var(--line);
}

.ring-cover-bg { background: linear-gradient(135deg, #dce8fa 0%, #eef4fb 100%); }
.film-bg { background: linear-gradient(135deg, #e8eef8 0%, #f8fbff 100%); }
.style-bg { background: linear-gradient(135deg, #d6e4f7 0%, #eef4fb 100%); }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.stat-card { min-height: 140px; }

.stat-title {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.stat-value {
  font-size: 1.18rem;
  line-height: 1.4;
  font-weight: 600;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.process-step {
  padding: 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.process-step span {
  display: inline-block;
  margin-bottom: 12px;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.08em;
}

.process-step h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.process-step p {
  margin: 0;
  color: var(--muted);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

.info-table th,
.info-table td {
  padding: 18px 20px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.info-table th {
  background: #f8fbff;
  color: var(--primary);
  font-size: 0.92rem;
  font-weight: 700;
}

.info-table td {
  color: var(--muted);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.detail-card a,
.contact-card a {
  color: var(--primary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
}

.form-row {
  display: flex;
  flex-direction: column;
  margin-bottom: 16px;
}

.form-row label {
  margin-bottom: 8px;
  font-size: 0.92rem;
  font-weight: 600;
}

.form-row input,
.form-row textarea,
.form-row select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  font: inherit;
  color: var(--text);
  background: #fff;
  outline: none;
}

.form-row input:focus,
.form-row textarea:focus,
.form-row select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(15, 47, 95, 0.08);
}

.form-note {
  margin: 14px 0 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.faq-list {
  display: grid;
  gap: 18px;
}

.cta-band {
  background: linear-gradient(135deg, #eef4fb 0%, #dfeafb 100%);
}

.cta-band-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.site-footer {
  padding: 30px 0;
  border-top: 1px solid var(--line);
  background: #fff;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
}

.footer-brand {
  margin: 0;
  font-weight: 700;
  color: var(--primary);
}

.footer-copy,
.footer-address {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--muted);
}

.footer-links a:hover {
  color: var(--primary);
}

@media (max-width: 1080px) {
  .hero-grid,
  .about-grid,
  .product-showcase,
  .process-grid,
  .stats-grid,
  .detail-grid,
  .contact-grid,
  .three-up,
  .cta-band-inner {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 760px) {
  .site-nav {
    position: absolute;
    top: 84px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: #fff;
    border-bottom: 1px solid var(--line);
  }

  .site-nav.open { display: flex; }
  .nav-toggle { display: inline-block; }
  .brand-logo { height: 36px; }
  .hero { padding: 76px 0 64px; }
  .page-hero { padding: 70px 0 30px; }
  .section { padding: 72px 0; }

  .hero h1,
  .page-hero h1 {
    font-size: 2.4rem;
  }

  .footer-inner {
    flex-direction: column;
  }
}