* {
  box-sizing: border-box;
}

:root {
  --black: #050505;
  --charcoal: #101010;
  --panel: #151515;
  --cream: #f4efe4;
  --muted: #bbb2a1;
  --gold: #d4a23a;
  --gold-dark: #9c7422;
  --line: rgba(212, 162, 58, 0.28);
  --white: #ffffff;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--cream);
  background: var(--black);
  line-height: 1.5;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 18px clamp(18px, 5vw, 72px);
  background: rgba(5, 5, 5, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--cream);
  text-decoration: none;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-main {
  color: var(--gold);
  font-size: 1.35rem;
}

.brand-lite {
  border: 1px solid var(--gold);
  color: var(--gold);
  border-radius: 6px;
  padding: 2px 7px;
  font-size: 0.78rem;
}

nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(12px, 2.2vw, 28px);
}

nav a {
  color: var(--cream);
  text-decoration: none;
  font-size: 0.82rem;
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.nav-buy {
  color: var(--gold);
}

.hero {
  min-height: 88vh;
  display: grid;
  grid-template-columns: 1fr 0.95fr;
  gap: clamp(30px, 6vw, 90px);
  align-items: center;
  padding: clamp(42px, 8vw, 110px) clamp(18px, 6vw, 92px);
  background:
    radial-gradient(circle at 18% 14%, rgba(212, 162, 58, 0.14), transparent 28%),
    linear-gradient(135deg, #111 0%, #050505 58%, #000 100%);
}

.eyebrow,
.section-label {
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.78rem;
  font-weight: 900;
  margin-bottom: 14px;
}

h1,
h2 {
  margin: 0;
  line-height: 0.98;
  letter-spacing: -0.04em;
}

h1 {
  font-size: clamp(2.8rem, 6vw, 6.8rem);
  max-width: 980px;
}

h2 {
  font-size: clamp(2.1rem, 4.5vw, 4.6rem);
}

.hero-copy,
.section p,
.dark-callout p,
.final-cta p {
  color: var(--muted);
  font-size: clamp(1.05rem, 1.8vw, 1.28rem);
}

.hero-copy {
  max-width: 760px;
  margin: 28px 0 0;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 48px;
  padding: 14px 22px;
  border-radius: 8px;
  text-decoration: none;
  text-transform: uppercase;
  font-weight: 900;
  letter-spacing: 0.08em;
  font-size: 0.84rem;
}

.button.primary {
  color: #090909;
  background: var(--gold);
  box-shadow: 0 10px 30px rgba(212, 162, 58, 0.22);
}

.button.secondary {
  border: 1px solid var(--gold);
  color: var(--gold);
}

.button.large {
  min-width: 220px;
  margin-top: 10px;
}

.hero-image-wrap {
  border: 1px solid var(--line);
  border-radius: 28px;
  overflow: hidden;
  background: #0a0a0a;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.6);
}

.hero-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.section {
  padding: clamp(58px, 8vw, 118px) clamp(18px, 6vw, 92px);
}

.intro {
  text-align: center;
  max-width: 1160px;
  margin: 0 auto;
}

.intro h2 {
  max-width: 1040px;
  margin: 0 auto 24px;
}

.intro p {
  max-width: 850px;
  margin: 0 auto 30px;
}

.use-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
  margin-top: 34px;
}

.use-grid div {
  padding: 17px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--gold);
  background: #111;
  font-weight: 900;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(28px, 6vw, 78px);
  align-items: center;
  background: #0b0b0b;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 28px 0 0;
  display: grid;
  gap: 16px;
}

.check-list li {
  padding: 20px;
  border-left: 4px solid var(--gold);
  background: #141414;
  border-radius: 12px;
}

.check-list strong {
  display: block;
  color: var(--cream);
  font-size: 1.08rem;
  margin-bottom: 5px;
}

.check-list span {
  color: var(--muted);
}

.image-card {
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
}

.image-card.white {
  background: var(--white);
}

.gallery-section {
  text-align: center;
}

.gallery-section h2 {
  margin-bottom: 36px;
}

.product-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(18px, 3vw, 34px);
  max-width: 1180px;
  margin: 0 auto;
}

.product-gallery figure {
  margin: 0;
  overflow: hidden;
  border-radius: 24px;
  background: var(--white);
}

.product-gallery figcaption {
  background: #111;
  color: var(--gold);
  padding: 14px;
  text-transform: uppercase;
  font-weight: 900;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
}

.dark-callout {
  background:
    linear-gradient(rgba(0,0,0,.66), rgba(0,0,0,.78)),
    url("assets/hero.jpg") center / cover no-repeat;
  min-height: 520px;
  display: flex;
  align-items: center;
}

.dark-callout > div {
  max-width: 760px;
}

.dark-callout p {
  max-width: 690px;
  margin: 24px 0 28px;
}

.faq {
  max-width: 1050px;
  margin: 0 auto;
}

.faq h2 {
  margin-bottom: 28px;
}

details {
  border: 1px solid var(--line);
  border-radius: 14px;
  margin: 14px 0;
  background: #111;
  overflow: hidden;
}

summary {
  cursor: pointer;
  padding: 20px;
  color: var(--cream);
  font-weight: 900;
  font-size: 1.05rem;
}

details p {
  margin: 0;
  padding: 0 20px 22px;
}

.final-cta {
  text-align: center;
  padding: clamp(64px, 9vw, 124px) 18px;
  background: linear-gradient(180deg, #111, #050505);
  border-top: 1px solid var(--line);
}

.final-cta h2 {
  margin-bottom: 18px;
}

.final-cta p {
  max-width: 740px;
  margin: 0 auto 24px;
}

.footer {
  padding: 34px 18px;
  text-align: center;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

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

@media (max-width: 920px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    justify-content: flex-start;
  }

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

  .hero {
    min-height: auto;
  }

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

  .dark-callout {
    min-height: 460px;
  }
}

@media (max-width: 540px) {
  nav a {
    font-size: 0.74rem;
  }

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

  .button {
    width: 100%;
  }

  h1 {
    font-size: clamp(2.45rem, 14vw, 3.6rem);
  }
}