:root {
  --bg: #070812;
  --panel: #101525;
  --panel-soft: #151c30;
  --text: #f6f7fb;
  --muted: #a9b2c7;
  --cyan: #21d4fd;
  --pink: #ff3df2;
  --lime: #a8ff5c;
  --amber: #ffb84d;
  --line: rgba(255, 255, 255, 0.14);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  max-width: 100%;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, Arial, Helvetica, sans-serif;
  letter-spacing: 0;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 72% 12%, rgba(33, 212, 253, 0.22), transparent 32rem),
    radial-gradient(circle at 18% 34%, rgba(255, 61, 242, 0.16), transparent 28rem),
    linear-gradient(180deg, #080914 0%, #0d1020 46%, #070812 100%);
}

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

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
  min-height: 72px;
  padding: 14px clamp(18px, 4vw, 64px);
  background: rgba(7, 8, 18, 0.84);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 900;
  white-space: nowrap;
}

.brand-mark {
  width: 24px;
  height: 24px;
  border: 3px solid var(--cyan);
  border-top-color: var(--pink);
  border-radius: 50%;
  box-shadow: 0 0 22px rgba(33, 212, 253, 0.55);
}

.nav {
  display: flex;
  justify-content: center;
  gap: clamp(16px, 3vw, 36px);
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

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

.lang-switch {
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
  width: 104px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
}

.lang-btn {
  min-height: 34px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-weight: 900;
  cursor: pointer;
}

.lang-btn.active {
  background: var(--text);
  color: #080914;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.98fr);
  align-items: center;
  gap: clamp(28px, 6vw, 80px);
  min-height: min(760px, calc(100vh - 140px));
  padding: clamp(32px, 5vw, 64px) clamp(18px, 5vw, 84px) 28px;
}

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

.eyebrow {
  margin: 0 0 14px;
  color: var(--lime);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 700px;
  margin: 0;
  font-size: clamp(40px, 6.4vw, 76px);
  line-height: 0.96;
  font-weight: 950;
}

h2 {
  margin: 0;
  font-size: clamp(30px, 4.6vw, 56px);
  line-height: 1.02;
  font-weight: 950;
}

h3 {
  margin: 0;
  font-size: 20px;
}

.hero-text,
.section-copy p,
.order-copy p {
  color: var(--muted);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.55;
}

.hero-text {
  max-width: 620px;
  margin: 24px 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 900;
  cursor: pointer;
}

.btn.primary {
  background: linear-gradient(135deg, var(--cyan), var(--pink));
  color: #050714;
  box-shadow: 0 18px 42px rgba(33, 212, 253, 0.22);
}

.btn.ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.07);
  color: var(--text);
}

.btn.wide {
  width: 100%;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.trust-row span {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.05);
  font-size: 14px;
  font-weight: 800;
}

.hero-media {
  position: relative;
  min-height: 420px;
  display: grid;
  place-items: center;
}

.hero-media::before {
  content: "";
  position: absolute;
  width: min(88vw, 620px);
  aspect-ratio: 1;
  border: 2px solid rgba(33, 212, 253, 0.22);
  border-radius: 50%;
  transform: rotate(-10deg) scaleY(0.54);
  box-shadow:
    0 0 34px rgba(33, 212, 253, 0.38),
    inset 0 0 42px rgba(255, 61, 242, 0.22);
}

.hero-product {
  position: relative;
  width: min(100%, 560px);
  aspect-ratio: 1;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.price-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 2;
  display: grid;
  gap: 2px;
  min-width: 132px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 8px;
  background: rgba(255, 184, 77, 0.94);
  color: #111019;
  box-shadow: 0 18px 50px rgba(255, 184, 77, 0.28);
}

.price-badge span {
  font-size: 13px;
  font-weight: 950;
}

.price-badge strong {
  font-size: 24px;
}

.strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  padding: 0 clamp(18px, 5vw, 84px);
}

.strip div {
  display: grid;
  gap: 5px;
  min-height: 104px;
  align-content: center;
  padding: 18px clamp(16px, 3vw, 34px);
  background: rgba(255, 255, 255, 0.07);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.strip strong {
  font-size: clamp(20px, 2.5vw, 30px);
}

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

.section {
  padding: clamp(54px, 8vw, 110px) clamp(18px, 5vw, 84px);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 0.72fr);
  align-items: center;
  gap: clamp(28px, 6vw, 80px);
}

.section-copy {
  max-width: 660px;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  color: var(--text);
  font-size: 17px;
}

.check-list li {
  position: relative;
  padding-left: 28px;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 18px rgba(168, 255, 92, 0.48);
}

.video-frame {
  justify-self: center;
  width: min(100%, 370px);
  aspect-ratio: 9 / 16;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #000;
  box-shadow: var(--shadow);
}

.video-frame video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 32px;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.feature {
  min-height: 250px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.04));
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 22px;
  border-radius: 50%;
  background: rgba(33, 212, 253, 0.16);
  color: var(--cyan);
  font-size: 24px;
  font-weight: 900;
}

.feature p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.gallery {
  display: grid;
  grid-template-columns: 0.9fr 1.15fr 0.95fr;
  gap: 12px;
  padding: 0 clamp(18px, 5vw, 84px);
}

.gallery img {
  width: 100%;
  height: clamp(260px, 34vw, 470px);
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.steps {
  background: rgba(255, 255, 255, 0.035);
}

.step-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.step-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  min-height: 186px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.step-list span {
  color: var(--amber);
  font-weight: 950;
}

.step-list p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.order-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 440px);
  gap: clamp(28px, 6vw, 80px);
  align-items: start;
}

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

.offer-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin: 24px 0;
}

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

.offer-line strong {
  color: var(--lime);
  font-size: clamp(30px, 4vw, 48px);
}

.offer-line span:last-child {
  color: var(--amber);
  font-weight: 900;
}

.box-image {
  width: min(100%, 520px);
  max-height: 360px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.order-form {
  display: grid;
  gap: 16px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
  box-shadow: var(--shadow);
}

.order-form label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 800;
}

.order-form input,
.order-form select {
  width: 100%;
  min-height: 50px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 0 14px;
  font: inherit;
}

.order-form select option {
  color: #101525;
}

.form-note,
.success,
.error {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.success {
  display: none;
  color: var(--lime);
  font-weight: 900;
}

.error {
  display: none;
  color: #ff8b8b;
  font-weight: 900;
}

.success.visible,
.error.visible {
  display: block;
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 900px;
}

details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

summary {
  cursor: pointer;
  padding: 20px 22px;
  font-weight: 900;
}

details p {
  margin: 0;
  padding: 0 22px 20px;
  color: var(--muted);
  line-height: 1.55;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 88px;
  padding: 24px clamp(18px, 5vw, 84px);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer span {
  color: var(--text);
  font-weight: 950;
}

.footer a {
  color: var(--cyan);
  font-weight: 900;
}

@media (max-width: 980px) {
  .topbar {
    grid-template-columns: auto auto;
  }

  .nav {
    display: none;
  }

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

  .hero {
    min-height: calc(100vh - 140px);
  }

  .hero-media {
    min-height: auto;
  }

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

@media (max-width: 680px) {
  .topbar {
    min-height: 64px;
    gap: 10px;
    padding: 12px 14px;
  }

  .brand {
    font-size: 18px;
  }

  .lang-switch {
    width: 96px;
  }

  .hero {
    gap: 18px;
    min-height: calc(100vh - 148px);
    padding: 24px 16px 18px;
  }

  h1 {
    font-size: clamp(34px, 10.8vw, 46px);
  }

  .hero-actions {
    display: flex;
    flex-wrap: nowrap;
    gap: 8px;
  }

  .btn {
    width: auto;
    flex: 1 1 0;
    min-height: 48px;
    padding: 0 10px;
    font-size: 14px;
  }

  .hero-text {
    margin-top: 16px;
    font-size: 16px;
    line-height: 1.42;
  }

  .hero-actions {
    margin-top: 18px;
  }

  .trust-row {
    display: none;
  }

  .hero-media::before {
    width: 96vw;
  }

  .hero-product {
    width: min(100%, 310px);
    max-height: 228px;
  }

  .price-badge {
    top: 10px;
    right: 10px;
    min-width: 112px;
    padding: 10px 12px;
  }

  .price-badge strong {
    font-size: 20px;
  }

  .strip {
    grid-template-columns: 1fr;
    padding: 0 16px;
  }

  .section {
    padding: 54px 16px;
  }

  .benefit-grid,
  .step-list,
  .gallery {
    grid-template-columns: 1fr;
  }

  .gallery {
    padding: 0 16px;
  }

  .gallery img {
    height: 310px;
  }

  .feature,
  .step-list li {
    min-height: auto;
  }

  .footer {
    padding: 22px 16px;
  }
}