:root {
  --ink: #0d2118;
  --muted: #486056;
  --paper: #f4efe4;
  --paper-2: #fffaf0;
  --green: #168552;
  --green-2: #21b876;
  --dark: #071511;
  --line: rgba(13, 33, 24, 0.14);
  --shadow: 0 24px 70px rgba(13, 33, 24, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: radial-gradient(circle at 15% 0%, #fff7df 0, var(--paper) 34%, #eee8dc 100%);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.45;
  padding-bottom: 88px;
}

img,
video {
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
}

.top-strip {
  display: flex;
  justify-content: center;
  gap: 10px;
  padding: 10px 16px;
  color: #fff;
  background: #050807;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px max(20px, 6vw);
  background: rgba(244, 239, 228, 0.88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-size: 20px;
  font-weight: 900;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 13px;
  object-fit: contain;
  box-shadow: 0 8px 20px rgba(13, 33, 24, 0.12);
}

.desktop-nav {
  display: flex;
  gap: 24px;
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
}

.desktop-nav a,
.header-cta,
.primary-cta,
.sticky-cta a {
  text-decoration: none;
}

.header-cta {
  padding: 12px 18px;
  border-radius: 999px;
  color: #fff;
  background: var(--green);
  font-weight: 900;
}

.section {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: clamp(48px, 7vw, 92px) 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.92fr);
  align-items: center;
  gap: clamp(28px, 5vw, 64px);
  min-height: calc(100vh - 110px);
}

.hero-media {
  position: relative;
  overflow: hidden;
  border-radius: 30px;
  background: #000;
  box-shadow: var(--shadow);
}

.hero-video {
  display: block;
  width: 100%;
  min-height: 560px;
  object-fit: cover;
}

.hero-badges {
  position: absolute;
  left: 22px;
  bottom: 22px;
  display: flex;
  align-items: end;
  gap: 18px;
}

.hero-badges img {
  width: 110px;
  filter: drop-shadow(0 10px 24px rgba(0, 0, 0, 0.28));
}

.rating-line {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  font-weight: 900;
}

.rating-line img {
  width: 150px;
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(44px, 6vw, 78px);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(32px, 4.4vw, 58px);
  line-height: 1.02;
  letter-spacing: -0.045em;
}

h3 {
  margin-bottom: 8px;
  font-size: 22px;
}

.hero-subtitle,
.copy-block p,
.product-section p,
.guarantee p,
.faq p {
  color: var(--muted);
  font-size: 20px;
}

.check-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 24px 0;
  list-style: none;
}

.check-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 800;
}

.check-list img {
  width: 24px;
}

.primary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 60px;
  padding: 0 34px;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(180deg, var(--green-2), var(--green));
  box-shadow: 0 18px 34px rgba(22, 133, 82, 0.28);
  font-size: 20px;
  font-weight: 900;
  text-transform: uppercase;
}

.stock-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
  color: #254236;
  font-weight: 800;
}

.stock-line img {
  height: 14px;
  width: auto;
}

.press-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(22px, 5vw, 70px);
  flex-wrap: wrap;
  padding: 28px 18px;
  background: var(--dark);
}

.press-strip img {
  max-height: 30px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.split,
.product-section,
.guarantee {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: clamp(28px, 5vw, 70px);
}

.eyebrow {
  margin-bottom: 10px;
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.rounded-image,
.product-image,
.steps img,
.steps video {
  border-radius: 26px;
  box-shadow: var(--shadow);
}

.dark-section {
  width: 100%;
  max-width: none;
  padding-left: max(20px, 6vw);
  padding-right: max(20px, 6vw);
  color: #fff;
  background: radial-gradient(circle at top, #1b4d37, var(--dark) 72%);
}

.dark-section .eyebrow,
.dark-section p {
  color: #bcf7d9;
}

.center-copy {
  width: min(760px, 100%);
  margin: 0 auto 34px;
  text-align: center;
}

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

.feature-grid article,
.steps article,
.review-grid article,
.faq-list details {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 250, 240, 0.84);
  box-shadow: 0 14px 40px rgba(13, 33, 24, 0.08);
}

.dark-section .feature-grid article {
  color: #10251b;
  background: #f6f1e6;
  border-color: rgba(255, 255, 255, 0.28);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.22);
}

.dark-section .feature-grid h3 {
  color: #0b2017;
}

.dark-section .feature-grid p {
  color: #355246;
  font-weight: 600;
}

.dark-section .feature-grid img {
  padding: 6px;
  border-radius: 999px;
  background: #1fb978;
  box-shadow: 0 6px 16px rgba(31, 185, 120, 0.26);
}

.feature-grid img {
  width: 34px;
}

.device-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 24px;
}

.device-grid span {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  border-radius: 16px;
  background: #fff;
  font-weight: 900;
}

.device-grid img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.advantage img {
  display: block;
  width: min(960px, 100%);
  margin: 0 auto;
}

.review-photo {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  object-fit: cover;
}

.stars {
  display: block;
  width: 110px;
  margin: 16px 0 10px;
}

.review-grid span {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--green);
  font-weight: 900;
}

.review-grid span img {
  width: 22px;
}

.guarantee {
  padding: 38px;
  border-radius: 30px;
  background: #fff;
  box-shadow: var(--shadow);
}

.guarantee > img {
  width: min(260px, 60vw);
  justify-self: center;
}

.faq-list {
  display: grid;
  gap: 14px;
  width: min(840px, 100%);
  margin: 0 auto;
}

.faq-list summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 900;
}

.faq-list p {
  margin: 12px 0 0;
}

.sticky-cta {
  position: fixed;
  right: 18px;
  bottom: 18px;
  left: 18px;
  z-index: 50;
  display: grid;
  grid-template-columns: 58px 1fr auto;
  align-items: center;
  gap: 14px;
  width: min(760px, calc(100% - 36px));
  margin: 0 auto;
  padding: 12px 14px;
  border-radius: 18px;
  color: #fff;
  background: rgba(5, 8, 7, 0.94);
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.34);
  opacity: 0;
  pointer-events: none;
  transform: translateY(130%);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.sticky-cta.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.sticky-cta img {
  width: 58px;
  height: 58px;
  border-radius: 14px;
  object-fit: cover;
}

.sticky-cta span {
  display: block;
  color: #cfeadd;
  font-size: 13px;
}

.sticky-cta a {
  padding: 14px 20px;
  border-radius: 12px;
  color: #fff;
  background: #1769ff;
  font-weight: 900;
  text-transform: uppercase;
}

.footer {
  padding: 44px 20px 120px;
  text-align: center;
  color: #dce7e2;
  background: var(--dark);
}

@media (max-width: 900px) {
  .desktop-nav,
  .header-cta {
    display: none;
  }

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

  .hero {
    padding-top: 28px;
  }

  .hero-media {
    order: 2;
  }

  .hero-copy {
    order: 1;
  }

  .hero-video {
    min-height: 360px;
  }

  .feature-grid,
  .steps,
  .review-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  body {
    padding-bottom: 104px;
  }

  .top-strip {
    font-size: 12px;
  }

  .site-header {
    padding: 12px 14px;
  }

  .brand span {
    font-size: 17px;
  }

  .section {
    width: min(100% - 28px, 1180px);
    padding: 44px 0;
  }

  h1 {
    font-size: 40px;
  }

  h2 {
    font-size: 34px;
  }

  .rating-line {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  .hero-badges img {
    width: 86px;
  }

  .primary-cta {
    width: 100%;
    font-size: 17px;
  }

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

  .guarantee {
    padding: 24px;
  }

  .sticky-cta {
    grid-template-columns: 46px 1fr;
  }

  .sticky-cta a {
    grid-column: 1 / -1;
    text-align: center;
  }

  .sticky-cta img {
    width: 46px;
    height: 46px;
  }
}