:root {
  color: #111827;
  background: #f7f8fa;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  --text-primary: #111827;
  --text-secondary: #485466;
  --text-muted: #667181;
  --border: #d7dee6;
  --accent: #087f74;
  --wellbeing: #6c8f72;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: #f7f8fa; color: var(--text-primary); }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(8, 127, 116, .28);
  outline-offset: 3px;
}

.site-header,
main,
footer {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #dde2e8;
}

.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 700; }
.brand img { border-radius: 8px; }
.site-header nav { display: flex; gap: 28px; color: #566171; font-size: 14px; font-weight: 600; }
.language-link { color: var(--accent); }

.hero {
  min-height: 560px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  border-bottom: 1px solid #dde2e8;
}

.eyebrow { margin: 0 0 16px; color: var(--accent); font-size: 12px; font-weight: 700; line-height: 1.2; text-transform: uppercase; letter-spacing: .08em; }
h1, h2, h3 { margin: 0; letter-spacing: 0; }
.hero h1 { max-width: 900px; font-size: clamp(54px, 8vw, 98px); font-weight: 750; line-height: .98; }
.hero-copy { max-width: 760px; margin: 28px 0 34px; color: var(--text-secondary); font-size: clamp(20px, 2.4vw, 30px); line-height: 1.4; }
.primary-link { display: inline-flex; align-items: center; gap: 12px; min-height: 46px; padding: 0 18px; border-radius: 7px; background: #111827; color: #fff; font-size: 14px; font-weight: 650; }
.primary-link:hover { background: var(--accent); color: #fff; }

.section,
.principles { padding: 104px 0; border-bottom: 1px solid #dde2e8; }
.section-heading { display: grid; grid-template-columns: 1fr 2fr; gap: 32px; margin-bottom: 52px; }
.section-heading h2 { max-width: 700px; font-size: clamp(34px, 4vw, 54px); font-weight: 700; line-height: 1.08; }
.product-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.product {
  min-height: 490px;
  display: flex;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 14px 40px rgba(15, 23, 42, .06);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.product:hover {
  transform: translateY(-2px);
  border-color: #c2ccd8;
  box-shadow: 0 18px 48px rgba(15, 23, 42, .085);
}
.product.featured { border-top: 3px solid #0f8d81; padding-top: 22px; }
.product-topline { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 22px; }
.product-index { color: #7a8493; font-size: 12px; font-variant-numeric: tabular-nums; }
.product-category { min-height: 0; margin: 28px 0 8px; color: var(--accent); font-size: 12px; font-weight: 700; line-height: 1.25; text-transform: uppercase; letter-spacing: .08em; }
.status { padding: 6px 9px; border: 1px solid var(--border); border-radius: 999px; color: #596474; font-size: 11px; font-weight: 650; white-space: nowrap; }
.status.available { border-color: #9bd8d1; background: #edf9f7; color: var(--accent); }
.product h3 { margin-top: 0; font-size: clamp(26px, 3vw, 36px); font-weight: 700; line-height: 1.08; }
.product h3 span { display: block; margin-top: 6px; color: var(--text-muted); font-size: .58em; font-weight: 600; }
.product p { margin: 14px 0 0; color: #566171; font-size: 15px; line-height: 1.6; }
.product .product-note { min-height: 78px; color: var(--text-muted); font-size: 13px; line-height: 1.55; }
.product > a { margin-top: auto; color: var(--accent); font-size: 14px; font-weight: 650; }
.product-visual {
  position: relative;
  height: 170px;
  overflow: hidden;
  border: 1px solid #e0e7ee;
  border-radius: 8px;
  background:
    radial-gradient(circle at 78% 22%, rgba(15, 141, 129, .18), transparent 34%),
    linear-gradient(135deg, #f9fbfc, #eef6f5);
}
.pdf-sheet {
  position: absolute;
  left: 34px;
  bottom: 24px;
  width: 112px;
  height: 126px;
  border: 1px solid #d4dde7;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 32px rgba(15, 23, 42, .12);
}
.pdf-sheet::before {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 34px;
  height: 34px;
  border-left: 1px solid #d4dde7;
  border-bottom: 1px solid #d4dde7;
  border-bottom-left-radius: 8px;
  background: #eef6f5;
}
.pdf-sheet span {
  display: block;
  width: 54px;
  height: 7px;
  margin: 16px 0 0 18px;
  border-radius: 999px;
  background: #c7d5df;
}
.pdf-sheet span:first-child { margin-top: 58px; background: #0f8d81; }
.listening-visual {
  background:
    radial-gradient(circle at 76% 28%, rgba(108, 143, 114, .2), transparent 34%),
    linear-gradient(140deg, #fbfaf6, #eef4ef 58%, #f7fbf8);
}
.listening-orbit {
  position: absolute;
  left: 38px;
  bottom: 26px;
  width: 112px;
  height: 112px;
  border: 1px solid rgba(108, 143, 114, .34);
  border-radius: 50%;
  background: rgba(255, 255, 255, .62);
  box-shadow: inset 0 0 0 24px rgba(255, 255, 255, .44), 0 20px 44px rgba(76, 96, 76, .12);
}
.listening-line {
  position: absolute;
  right: 28px;
  bottom: 44px;
  width: min(54%, 220px);
  height: 76px;
  border-bottom: 3px solid rgba(108, 143, 114, .72);
  border-radius: 0 0 80px 80px;
}
.listening-line::before,
.listening-line::after {
  content: "";
  position: absolute;
  width: 88px;
  height: 46px;
  border-top: 3px solid rgba(108, 143, 114, .62);
  border-radius: 80px 80px 0 0;
}
.listening-line::before { left: 4px; top: 3px; }
.listening-line::after { right: 0; top: 24px; width: 116px; }
.product-listening .product-category,
.product-listening > a { color: var(--wellbeing); }
.product-listening .status.available { border-color: #c8d8bd; background: #f1f7ed; color: #587c5e; }

.principle-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid #cfd6df; }
.principle-list li { display: grid; grid-template-columns: 70px minmax(240px, .8fr) 1fr; gap: 24px; align-items: start; padding: 28px 0; border-bottom: 1px solid #dfe4ea; }
.principle-list span { color: #8a94a2; font-size: 12px; }
.principle-list strong { font-size: 18px; font-weight: 650; }
.principle-list p { margin: 0; color: #566171; font-size: 15px; line-height: 1.6; }

.site-footer {
  min-height: 148px;
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto;
  gap: 18px 36px;
  align-items: center;
  padding: 28px 0;
  color: #667181;
  font-size: 13px;
}
.site-footer > span { max-width: 620px; line-height: 1.5; }
.footer-business-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
  column-gap: 26px;
  row-gap: 10px;
  color: #485466;
  font-weight: 650;
}
.footer-business-links a { display: inline-flex; white-space: nowrap; }
.footer-meta { grid-column: 1 / -1; display: flex; justify-content: flex-end; gap: 22px; align-items: center; padding-top: 16px; border-top: 1px solid #dde2e8; }
.seller-information-grid { display: grid; gap: 0; margin: 0; }
.seller-information-grid div { display: grid; gap: 10px; padding: 24px 0; }
.seller-information-grid div:first-child { padding-top: 0; }
.seller-information-grid div + div { border-top: 1px solid #e2e6eb; }
.seller-information-grid dt { color: #667181; font-size: 13px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; }
.seller-information-grid dd { margin: 0; color: #111827; font-size: 19px; line-height: 1.5; }
.document.seller-document { padding: 56px; }
.seller-document h1 { margin-bottom: 44px; }

.document-wrap { padding: 70px 0 96px; }
.document { max-width: 760px; margin: 0 auto; padding: 48px; border: 1px solid #d7dee6; border-radius: 8px; background: #fff; box-shadow: 0 12px 32px rgba(15, 23, 42, .05); }
.document h1 { margin-bottom: 44px; font-size: clamp(40px, 6vw, 64px); line-height: 1.05; }
.document section + section { margin-top: 34px; padding-top: 30px; border-top: 1px solid #e2e6eb; }
.document h2 { font-size: 20px; }
.document section p { margin: 12px 0 0; color: #566171; font-size: 16px; line-height: 1.65; }
.not-found { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
.not-found h1 { font-size: clamp(38px, 7vw, 68px); }
.not-found > p:not(.eyebrow) { margin: 18px 0 30px; color: #566171; }
.not-found img { margin-bottom: 28px; }

@media (max-width: 780px) {
  .site-header, main, footer { width: min(100% - 28px, 1180px); }
  .site-header { min-height: 68px; }
  .site-header nav { gap: 14px; }
  .site-header nav a:not(.language-link) { display: none; }
  .hero { min-height: 500px; }
  .hero h1 { font-size: clamp(48px, 16vw, 72px); }
  .section, .principles { padding: 72px 0; }
  .section-heading { grid-template-columns: 1fr; gap: 8px; margin-bottom: 34px; }
  .product-grid { grid-template-columns: 1fr; }
  .product { min-height: auto; padding: 20px; }
  .product-visual { height: 138px; }
  .product h3 { font-size: 28px; }
  .product .product-note { min-height: 0; }
  .principle-list li { grid-template-columns: 42px 1fr; }
  .principle-list p { grid-column: 2; }
  .site-footer { min-height: 180px; grid-template-columns: 1fr; align-items: flex-start; }
  .footer-business-links { justify-content: flex-start; }
  .footer-meta { grid-column: 1; width: 100%; justify-content: space-between; }
  .document-wrap { padding: 28px 0 56px; }
  .document, .document.seller-document { padding: 28px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .product { transition: none; }
  .product:hover { transform: none; }
}