:root {
  --bg: #0c1218;
  --surface: #121b25;
  --accent: #70b72a;
  --text: #f5f5f5;
  --muted: #a4b0b9;
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background: #080c11;
}

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

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
  min-height: 100vh;
  padding: 60px 40px;
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin: 0 0 20px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(3rem, 5vw, 5rem);
  line-height: 0.95;
}

.hero__text {
  max-width: 640px;
  margin: 24px 0 30px;
  font-size: 1.1rem;
  color: var(--muted);
}

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

.hero__features li {
  padding: 16px 20px;
  background: #141d27;
  border-radius: 16px;
}

.hero__price {
  margin-top: 24px;
  display: inline-flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.hero__price-label {
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.hero__price strong {
  font-size: 2rem;
  color: #fff;
}

.price-value {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.old-price {
  color: var(--muted);
  text-decoration: line-through;
}

.price-discount {
  color: #70b72a;
  font-weight: 700;
}

.hero__media {
  display: flex;
  justify-content: center;
  align-items: center;
}

.section {
  padding: 60px 40px;
}

.section--offer {
  background: #0f1720;
}

.section__grid,
.kit-grid,
.benefits-grid,
.usecases-grid {
  display: grid;
  gap: 24px;
}

.section__grid {
  grid-template-columns: 1.4fr 0.9fr;
  align-items: start;
}

.product-card {
  background: #101824;
  border-radius: var(--radius);
  overflow: hidden;
}

.product-card__details {
  padding: 28px;
}

.product-card__details h3 {
  margin-top: 0;
}

.product-card__details ul {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  color: var(--muted);
}

.product-card__details li {
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.cards {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}

.cards article,
.benefits-grid article,
.usecases-grid article {
  background: #121b25;
  padding: 24px;
  border-radius: 22px;
  box-shadow: 0 18px 40px rgba(0,0,0,0.18);
}

.cards h3,
.benefits-grid h3,
.usecases-grid strong {
  margin: 0 0 12px;
  color: #fff;
}

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

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

.section--kit .kit-grid {
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
}

.section--kit ul {
  list-style: none;
  padding: 0;
  margin: 0;
  color: var(--text);
}

.section--kit li {
  margin-bottom: 14px;
  padding-left: 16px;
  position: relative;
}

.section--kit li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.section--gallery {
  background: #0b121d;
}

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

.section--gallery img {
  width: 100%;
  border-radius: 20px;
  object-fit: cover;
  min-height: 180px;
}

.section--promo {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: 24px;
  background: linear-gradient(135deg, #11171f, #0f1727);
  border-radius: 28px;
  padding: 36px;
}

.promo__left h2,
.section--reviews h2,
.section--gallery h2 {
  margin-top: 0;
}

.timer-card {
  margin-top: 24px;
  padding: 24px;
  border-radius: 22px;
  background: #0f1b2b;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.timer-card span {
  color: var(--muted);
}

.timer {
  font-size: 2rem;
  font-weight: 700;
  color: #70b72a;
}

.section--promo ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}

.section--promo li {
  padding-left: 18px;
  position: relative;
  color: var(--text);
}

.section--promo li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.section--reviews {
  background: #07101d;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.reviews-grid article {
  padding: 28px;
  border-radius: 24px;
  background: #101b27;
}

.reviews-grid p {
  margin: 0 0 16px;
  color: var(--muted);
  line-height: 1.8;
}

.reviews-grid strong {
  display: block;
  color: #fff;
}

.section--usecases {
  background: #0d1321;
}

.section--cta {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: start;
  background: linear-gradient(135deg, #11171f, #15212d);
}

.order-visual {
  width: 100%;
}

.order-visual img {
  width: 100%;
  display: block;
  border-radius: 28px;
  object-fit: cover;
  box-shadow: 0 20px 60px rgba(0,0,0,0.24);
}

.cta-text h2 {
  margin: 0;
  font-size: clamp(2rem, 3vw, 3rem);
}

.cta-text p {
  color: var(--muted);
  margin-top: 18px;
}

form {
  background: #101824;
  border-radius: 28px;
  padding: 36px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.24);
}

.price-block {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.price-block span {
  color: var(--muted);
}

.price-block strong {
  font-size: 2rem;
  color: #fff;
}

form label {
  display: block;
  margin-bottom: 10px;
  font-weight: 600;
}

form input {
  width: 100%;
  border: 1px solid rgba(255,255,255,0.1);
  background: #0e1620;
  color: var(--text);
  border-radius: 16px;
  padding: 16px 18px;
  margin-bottom: 20px;
  font-size: 1rem;
}

form button {
  width: 100%;
  border: none;
  border-radius: 16px;
  padding: 18px;
  font-size: 1rem;
  font-weight: 700;
  color: #0a1115;
  background: var(--accent);
  cursor: pointer;
}

.form-note {
  margin: 18px 0 0;
  color: var(--muted);
}

.order-message {
  margin-top: 18px;
  font-size: 0.95rem;
}

footer {
  padding: 28px 40px;
  text-align: center;
  color: var(--muted);
}

@media (max-width: 900px) {
  .hero,
  .section--offer .section__grid,
  .section--cta,
  .section--kit .kit-grid,
  .section--gallery .gallery-grid,
  .section--promo,
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    min-height: auto;
    padding: 40px 20px;
  }
  .hero__features {
    grid-template-columns: 1fr;
  }
  .section__grid,
  .kit-grid,
  .benefits-grid,
  .usecases-grid {
    grid-template-columns: 1fr;
  }
  .section--cta {
    gap: 24px;
  }
  .section--promo {
    padding: 28px;
  }
  form {
    padding: 28px 22px;
  }
  form input,
  form button {
    font-size: 1rem;
  }
  .price-block {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 24px;
  }
  .price-block span {
    color: var(--muted);
  }
  .price-block strong {
    font-size: 1.8rem;
  }
  .gallery-grid img,
  .reviews-grid article,
  .promo__left,
  .promo__right {
    width: 100%;
  }
  .section,
  footer {
    padding: 40px 20px;
  }
}