:root {
  --ink: #101820;
  --muted: #66727f;
  --white: #ffffff;
  --soft: #f6f8f4;
  --sage: #6e806a;
  --gold: #c69b48;
  --rose: #b36b73;
  --blue: #24364f;
  --line: rgba(16, 24, 32, 0.13);
  --shadow: 0 26px 76px rgba(16, 24, 32, 0.16);
  --radius: 8px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  overflow-x: hidden;
}

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

a { color: inherit; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  min-height: 82px;
  padding: 12px clamp(16px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: block;
  width: 186px;
}

.brand img {
  width: 186px;
}

.nav,
.actions,
.hero-actions,
.contact-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav {
  justify-content: center;
}

.nav a {
  color: var(--muted);
  font-weight: 800;
  text-decoration: none;
  padding: 10px 8px;
}

.nav a:hover { color: var(--ink); }

.lang,
.call,
.primary,
.secondary,
.tab,
.panel-link {
  min-height: 44px;
  border-radius: var(--radius);
  font: inherit;
  font-weight: 850;
}

.lang {
  width: 52px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  cursor: pointer;
}

.call,
.primary,
.secondary,
.panel-link {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  text-decoration: none;
  border: 1px solid transparent;
  padding: 0 18px;
}

.call,
.primary {
  color: var(--white);
  background: var(--ink);
}

.secondary,
.panel-link {
  color: var(--ink);
  background: var(--white);
  border-color: var(--line);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(420px, 0.84fr);
  gap: clamp(34px, 6vw, 84px);
  align-items: center;
  min-height: calc(100vh - 82px);
  padding: clamp(58px, 8vw, 116px) clamp(18px, 5vw, 72px);
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.96), rgba(246, 248, 244, 0.82)),
    url("images/site/asset_03.webp") right center / min(55vw, 760px) no-repeat;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--rose);
  font-size: 0.82rem;
  font-weight: 950;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 780px;
  margin-bottom: 20px;
  font-size: clamp(2.45rem, 6vw, 5.25rem);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 3.65rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  font-size: 1.22rem;
  line-height: 1.28;
  letter-spacing: 0;
}

.lead {
  max-width: 720px;
  color: #3f4a56;
  font-size: 1.16rem;
  line-height: 1.68;
}

.hero-actions {
  flex-wrap: wrap;
  margin: 30px 0;
}

.hero-actions .primary,
.hero-actions .secondary {
  min-width: 176px;
}

.proof-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 160px));
  gap: 10px;
  max-width: 540px;
}

.proof-row div {
  padding: 16px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 12px 36px rgba(16, 24, 32, 0.06);
}

.proof-row strong,
.proof-row span {
  display: block;
}

.proof-row strong {
  color: var(--blue);
  font-size: 1.65rem;
}

.proof-row span {
  color: var(--muted);
  font-size: 0.88rem;
}

.hero-visual {
  position: relative;
  min-height: 640px;
}

.hero-case,
.hero-product {
  position: absolute;
  overflow: hidden;
  margin: 0;
  background: var(--white);
  border: 10px solid var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-case {
  left: 0;
  top: 28px;
  width: min(68%, 420px);
  aspect-ratio: 1;
  z-index: 2;
}

.hero-product {
  right: 0;
  bottom: 72px;
  width: min(58%, 360px);
  aspect-ratio: 1;
  z-index: 3;
}

.hero-case img,
.hero-product img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-note {
  position: absolute;
  left: 9%;
  right: 7%;
  bottom: 0;
  z-index: 4;
  padding: 18px;
  color: var(--white);
  background: var(--ink);
  border-radius: var(--radius);
}

.hero-note span,
.hero-note strong {
  display: block;
}

.hero-note span {
  margin-bottom: 5px;
  color: rgba(255, 255, 255, 0.72);
}

.quick {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--ink);
  color: var(--white);
}

.quick a {
  min-height: 132px;
  padding: 28px clamp(18px, 4vw, 46px);
  border-right: 1px solid rgba(255, 255, 255, 0.12);
  text-decoration: none;
}

.quick span,
.quick strong {
  display: block;
}

.quick span {
  color: var(--gold);
  font-weight: 900;
  margin-bottom: 8px;
}

.quick strong {
  font-size: 1.16rem;
  line-height: 1.3;
}

.section,
.proof-section,
.price-path,
.contact {
  padding: clamp(58px, 8vw, 112px) clamp(18px, 5vw, 72px);
}

.section-head {
  max-width: 860px;
  margin-bottom: 34px;
}

.section-head.compact {
  max-width: 760px;
}

.approach {
  background: var(--soft);
}

.selector {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 18px;
  align-items: stretch;
  max-width: 1100px;
  margin-bottom: 24px;
}

.tabs {
  display: grid;
  gap: 10px;
}

.tab {
  padding: 0 16px;
  text-align: left;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  cursor: pointer;
}

.tab.active {
  color: var(--white);
  background: var(--sage);
  border-color: var(--sage);
}

.panel {
  min-height: 276px;
  padding: clamp(24px, 4vw, 44px);
  color: var(--white);
  background:
    linear-gradient(120deg, rgba(16, 24, 32, 0.86), rgba(36, 54, 79, 0.78)),
    url("images/site/asset_04.webp") center / cover;
  border-radius: var(--radius);
}

.panel p {
  max-width: 700px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.65;
}

.panel [data-panel-kicker] {
  margin-bottom: 8px;
  color: var(--gold);
  font-weight: 950;
}

.panel-link {
  margin-top: 8px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.24);
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.method-grid article {
  min-height: 236px;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.method-grid span {
  display: inline-flex;
  color: var(--rose);
  font-weight: 950;
  margin-bottom: 28px;
}

.method-grid p {
  color: var(--muted);
  line-height: 1.6;
}

.proof-section {
  background: var(--white);
}

.evidence {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(240px, 0.32fr);
  gap: 18px;
  align-items: stretch;
}

.evidence-main {
  position: relative;
  overflow: hidden;
  min-height: 580px;
  margin: 0;
  background: #e8ece8;
  border-radius: var(--radius);
}

.evidence-main img {
  width: 100%;
  height: 100%;
  min-height: 580px;
  object-fit: contain;
}

.evidence-main figcaption {
  position: absolute;
  left: 18px;
  bottom: 18px;
  max-width: min(90%, 640px);
  padding: 10px 12px;
  color: var(--white);
  background: rgba(16, 24, 32, 0.76);
  border-radius: var(--radius);
  font-weight: 850;
}

.evidence-controls {
  display: grid;
  gap: 12px;
}

.evidence-thumb {
  overflow: hidden;
  padding: 0;
  background: var(--white);
  border: 3px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
}

.evidence-thumb.active {
  border-color: var(--rose);
}

.evidence-thumb img {
  width: 100%;
  height: 132px;
  object-fit: cover;
}

.medical-note {
  max-width: 980px;
  margin: 20px 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.brands {
  background: var(--ink);
  color: var(--white);
}

.brand-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.brand-grid img {
  width: 100%;
  height: 150px;
  object-fit: contain;
  padding: 20px;
  background: var(--white);
  border-radius: var(--radius);
}

.price-path {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(320px, 0.48fr);
  gap: clamp(28px, 5vw, 72px);
  background: var(--soft);
}

.price-path p {
  color: var(--muted);
  line-height: 1.7;
}

.link-list {
  display: grid;
  gap: 12px;
}

.link-list a {
  display: flex;
  align-items: center;
  min-height: 58px;
  padding: 0 18px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 900;
}

.contact {
  background:
    linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.96)),
    url("images/site/asset_05.webp") center / cover;
}

.contact-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  max-width: 1120px;
  padding: clamp(24px, 4vw, 46px);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.contact-card p:not(.eyebrow) {
  color: var(--muted);
  line-height: 1.7;
}

.contact-actions {
  flex-direction: column;
  align-items: stretch;
  min-width: 230px;
}

.source-note {
  max-width: 1120px;
  margin-top: 18px;
  color: #3f4a56;
  line-height: 1.6;
}

.sticky-cta {
  position: fixed;
  left: 14px;
  right: 14px;
  bottom: 14px;
  z-index: 30;
  display: none;
  justify-content: center;
  align-items: center;
  min-height: 52px;
  color: var(--white);
  background: var(--rose);
  border-radius: var(--radius);
  box-shadow: 0 18px 48px rgba(179, 107, 115, 0.36);
  text-decoration: none;
  font-weight: 950;
}

@media (max-width: 1020px) {
  .topbar {
    grid-template-columns: 180px auto;
  }

  .brand,
  .brand img {
    width: 166px;
  }

  .nav {
    display: none;
  }

  .actions {
    justify-content: end;
  }

  .hero,
  .selector,
  .evidence,
  .price-path,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    min-height: 520px;
  }

  .quick,
  .method-grid {
    grid-template-columns: 1fr;
  }

  .evidence-controls {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .contact-actions {
    flex-direction: row;
    flex-wrap: wrap;
    min-width: 0;
  }
}

@media (max-width: 640px) {
  .topbar {
    min-height: 68px;
    padding: 10px 14px;
  }

  .brand,
  .brand img {
    width: 136px;
  }

  .call {
    display: none;
  }

  .hero,
  .section,
  .proof-section,
  .price-path,
  .contact {
    padding-right: 14px;
    padding-left: 14px;
  }

  h1 {
    font-size: 2.42rem;
  }

  .proof-row {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 430px;
  }

  .hero-case {
    width: 72%;
  }

  .hero-product {
    width: 54%;
    bottom: 82px;
  }

  .hero-note {
    left: 0;
    right: 0;
  }

  .evidence-main,
  .evidence-main img {
    min-height: 370px;
  }

  .evidence-controls {
    grid-template-columns: repeat(2, 1fr);
  }

  .evidence-thumb img {
    height: 112px;
  }

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

  .contact-actions {
    flex-direction: column;
  }

  .primary,
  .secondary {
    width: 100%;
  }

  .sticky-cta {
    display: flex;
  }

  .sticky-cta.is-hidden {
    display: none;
  }
}