:root {
  --paper: #fffaf7;
  --surface: #ffffff;
  --ink: #191615;
  --muted: #6c615e;
  --line: #eadfd9;
  --red: #d9323a;
  --red-dark: #a9212b;
  --teal: #1b7770;
  --gold: #b78a3b;
  --shadow: 0 22px 70px rgba(41, 23, 18, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 4vw, 56px);
  background: rgba(255, 250, 247, 0.88);
  border-bottom: 1px solid rgba(234, 223, 217, 0.82);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: white;
  font-size: 16px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

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

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1.08fr);
  gap: clamp(30px, 6vw, 86px);
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: clamp(38px, 6vw, 86px) clamp(20px, 5vw, 72px) 42px;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 22px;
  font-size: clamp(44px, 7vw, 86px);
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 22px;
  line-height: 1.18;
}

.hero-text {
  max-width: 560px;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.65;
}

.hero-actions,
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 13px 20px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.primary {
  background: var(--red);
  color: white;
  box-shadow: 0 14px 34px rgba(217, 50, 58, 0.22);
}

.primary:hover {
  background: var(--red-dark);
}

.secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.7);
  color: var(--ink);
}

.full {
  width: 100%;
}

.hero-media {
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
  background: #f2e8e2;
}

.hero-media img {
  width: 100%;
  height: min(68vh, 720px);
  min-height: 430px;
  object-fit: cover;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-block: 1px solid var(--line);
  background: var(--surface);
}

.trust-strip div {
  padding: 24px clamp(20px, 4vw, 52px);
  border-right: 1px solid var(--line);
}

.trust-strip div:last-child {
  border-right: 0;
}

.trust-strip strong,
.trust-strip span {
  display: block;
}

.trust-strip strong {
  margin-bottom: 7px;
  font-size: 15px;
}

.trust-strip span,
.section p,
.product-card li,
.feature-list p,
details p,
.site-footer p {
  color: var(--muted);
  line-height: 1.7;
}

.section {
  padding: clamp(70px, 9vw, 122px) clamp(20px, 5vw, 72px);
}

.intro {
  display: grid;
  grid-template-columns: minmax(260px, 0.85fr) minmax(300px, 1fr);
  gap: clamp(24px, 6vw, 90px);
  align-items: start;
}

.intro p:last-child {
  max-width: 760px;
  font-size: 19px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.product-showcase {
  display: grid;
  grid-template-columns: minmax(300px, 0.85fr) minmax(320px, 1fr);
  gap: clamp(30px, 6vw, 86px);
  align-items: center;
}

.showcase-copy p {
  max-width: 680px;
  font-size: 18px;
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 26px 0 28px;
}

.spec-grid div {
  min-height: 94px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
}

.spec-grid span,
.gallery figcaption {
  display: block;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.spec-grid strong {
  display: block;
  margin-top: 8px;
  font-size: 20px;
  line-height: 1.15;
}

.product-photo,
.split figure,
.gallery figure,
.routine-image,
.charge-grid figure {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 12px 38px rgba(41, 23, 18, 0.08);
}

.product-photo img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.split-grid {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(260px, 0.62fr);
  gap: 24px;
  align-items: stretch;
}

.split figure img,
.gallery img,
.routine-image img,
.charge-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feature-stack {
  display: grid;
  gap: 14px;
}

.feature-stack article {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.feature-stack article p {
  margin-bottom: 0;
}

.product-card {
  display: grid;
  grid-template-columns: minmax(180px, 0.78fr) minmax(250px, 1fr);
  min-height: 520px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 12px 38px rgba(41, 23, 18, 0.08);
}

.product-card.alt {
  background: #fbf7ef;
}

.product-visual {
  min-height: 100%;
  background: #efe5df;
}

.product-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-content {
  display: flex;
  flex-direction: column;
  padding: 28px;
}

.product-label {
  margin-bottom: 10px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.product-card ul {
  margin: 2px 0 24px;
  padding-left: 18px;
}

.product-card li {
  margin-bottom: 8px;
}

.product-card .button {
  margin-top: auto;
}

.routine {
  background: #f6f0ec;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.steps div,
details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
}

.steps div {
  padding: 28px;
}

.steps span {
  display: inline-block;
  margin-bottom: 34px;
  color: var(--red);
  font-size: 13px;
  font-weight: 850;
}

.feature-band {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(300px, 1fr);
  gap: clamp(28px, 5vw, 70px);
  padding: clamp(62px, 8vw, 104px) clamp(20px, 5vw, 72px);
  background: var(--ink);
  color: white;
}

.feature-band .eyebrow {
  color: #f3c86f;
}

.feature-list {
  display: grid;
  gap: 14px;
}

.feature-list p {
  margin: 0;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.76);
}

.feature-list strong {
  color: white;
}

.gallery-section {
  background: #fbf5f1;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.gallery figure {
  display: flex;
  flex-direction: column;
}

.gallery img {
  aspect-ratio: 1 / 1;
}

.gallery figcaption {
  min-height: 72px;
  padding: 16px;
  background: var(--surface);
}

.routine-grid {
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(320px, 1fr);
  gap: 24px;
  align-items: stretch;
}

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

.routine-image img {
  aspect-ratio: 1 / 1;
}

.charge-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.charge-grid img {
  aspect-ratio: 1464 / 600;
}

.products-overview {
  background: #fbf5f1;
}

.rb-showcase {
  background: #f5ece2;
}

.rb-technology {
  background: var(--surface);
}

.section-note {
  max-width: 900px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

details {
  padding: 22px;
}

summary {
  cursor: pointer;
  font-weight: 850;
}

details p {
  margin: 14px 0 0;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(240px, 1fr);
  gap: 26px;
  padding: 44px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.footer-brand {
  margin-bottom: 12px;
}

.footer-links {
  justify-content: flex-end;
  align-content: start;
}

.footer-links a {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.fine-print {
  grid-column: 1 / -1;
  margin: 10px 0 0;
  font-size: 13px;
}

@media (max-width: 1080px) {
  .hero,
  .intro,
  .feature-band,
  .product-showcase,
  .split-grid,
  .routine-grid,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

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

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero {
    padding-top: 32px;
  }

  h1 {
    font-size: 44px;
  }

  .hero-media img {
    height: auto;
    min-height: 0;
    aspect-ratio: 4 / 3;
  }

  .trust-strip,
  .steps {
    grid-template-columns: 1fr;
  }

  .trust-strip div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .trust-strip div:last-child {
    border-bottom: 0;
  }

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

  .spec-grid,
  .routine-grid .steps,
  .charge-grid {
    grid-template-columns: 1fr;
  }

  .product-visual img {
    aspect-ratio: 16 / 10;
  }
}