:root {
  --bg: #ffffff;
  --panel: #ffffff;
  --panel-soft: #f3fbff;
  --text: #102033;
  --muted: #5d6f82;
  --accent: #18a8e8;
  --accent-dark: #087eb7;
  --accent-soft: #e7f7ff;
  --mint: #dcf8ee;
  --mint-strong: #59d5ad;
  --sakura: #ffe8f0;
  --sakura-strong: #ff8db0;
  --line: rgba(16, 32, 51, 0.12);
  --shadow: 0 18px 48px rgba(24, 168, 232, 0.15);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, Arial, Helvetica, sans-serif;
  color: var(--text);
  background:
    linear-gradient(180deg, #f5fbff 0%, #ffffff 34%, #ffffff 100%),
    radial-gradient(circle at 12% 4%, rgba(24, 168, 232, 0.15), transparent 28rem),
    radial-gradient(circle at 88% 2%, rgba(255, 141, 176, 0.18), transparent 24rem),
    radial-gradient(circle at 88% 42%, rgba(89, 213, 173, 0.14), transparent 26rem),
    var(--bg);
  line-height: 1.45;
}

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

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

.container {
  width: min(1120px, calc(100% - 28px));
  margin: 0 auto;
}

.topline {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(16px);
}

.topline__inner {
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 950;
  letter-spacing: 0;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  color: #ffffff;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  box-shadow: 0 10px 28px rgba(24, 168, 232, 0.26);
}

.topline__cta {
  font-weight: 900;
  color: var(--accent-dark);
}

.section {
  padding: 58px 0;
}

.section--tight {
  padding: 28px 0;
}

.hero {
  padding-top: 44px;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  align-items: center;
  gap: 34px;
}

.eyebrow {
  display: inline-flex;
  width: fit-content;
  margin: 0 0 14px;
  padding: 8px 11px;
  border: 1px solid rgba(24, 168, 232, 0.22);
  border-radius: 999px;
  color: var(--accent-dark);
  background: var(--accent-soft);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

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

h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(38px, 6vw, 76px);
  line-height: 0.94;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.03;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.hero__lead {
  margin: 18px 0 0;
  max-width: 650px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 22px);
}

.price {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  flex-wrap: wrap;
  margin: 24px 0;
}

.price__new {
  color: var(--accent-dark);
  font-size: clamp(44px, 7vw, 72px);
  font-weight: 950;
  line-height: 0.95;
}

.price__old {
  margin-bottom: 8px;
  color: #76839a;
  font-size: 24px;
  font-weight: 800;
  text-decoration: line-through;
}

.hero__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.button {
  border: 0;
  border-radius: 14px;
  min-height: 52px;
  padding: 15px 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: inherit;
  font-weight: 950;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

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

.button--primary {
  color: #ffffff;
  background: linear-gradient(180deg, var(--accent), var(--accent-dark));
  box-shadow: 0 14px 32px rgba(24, 168, 232, 0.27);
}

.button--ghost {
  border: 1px solid var(--line);
  color: var(--text);
  background: #ffffff;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.chips span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 12px;
  color: var(--muted);
  background: #ffffff;
  font-size: 14px;
  font-weight: 800;
}

.product-card,
.media-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(160deg, rgba(24, 168, 232, 0.16), transparent 48%),
    linear-gradient(24deg, rgba(220, 248, 238, 0.96), transparent 58%),
    linear-gradient(330deg, rgba(255, 232, 240, 0.9), transparent 56%),
    var(--panel);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.product-card {
  position: relative;
  padding: 18px;
}

.product-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  border-radius: 14px;
  background: #f8fafc;
}

.product-card__badge {
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 28px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border: 1px solid rgba(24, 168, 232, 0.16);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
}

.product-card__badge strong {
  display: grid;
  place-items: center;
  flex: 0 0 48px;
  height: 48px;
  border-radius: 12px;
  color: #ffffff;
  background: var(--accent);
}

.product-card__badge span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.promo,
.order,
.split {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: var(--shadow);
}

.promo {
  background:
    linear-gradient(110deg, var(--mint), rgba(220, 248, 238, 0.12) 46%),
    #ffffff;
}

.order {
  background:
    linear-gradient(140deg, var(--sakura), rgba(255, 232, 240, 0.2) 42%),
    #ffffff;
}

.split {
  background:
    linear-gradient(135deg, var(--accent-soft), rgba(231, 247, 255, 0.2) 44%),
    #ffffff;
}

.promo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px;
}

.promo__label,
.promo__note {
  margin: 0;
  color: var(--muted);
}

.promo__price {
  color: var(--accent-dark);
  font-size: 42px;
  font-weight: 950;
  line-height: 1;
}

.section-head {
  max-width: 760px;
  margin-bottom: 24px;
}

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

.card {
  min-height: 210px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
}

.card:nth-child(2n) {
  background: var(--mint);
}

.card:nth-child(3n) {
  background: var(--sakura);
}

.card:nth-child(4n) {
  background: var(--accent-soft);
}

.card__icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 16px;
  border-radius: 12px;
  color: #ffffff;
  background: var(--accent);
  font-weight: 950;
}

.card p,
.copy-panel p,
.order__info p,
.footer p {
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 24px;
  align-items: center;
  padding: 22px;
}

.media-panel {
  padding: 16px;
}

.media-panel img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  border-radius: 14px;
  background: #f8fafc;
}

.copy-panel {
  padding: 8px;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 22px 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 30px;
  color: var(--muted);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--mint-strong);
  box-shadow: 0 0 0 5px rgba(89, 213, 173, 0.18);
}

.order {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 24px;
  padding: 24px;
}

.order__summary {
  margin-top: 22px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #ffffff;
}

.order__summary span {
  display: block;
  color: var(--muted);
  font-weight: 800;
}

.order__summary strong {
  display: block;
  color: var(--accent-dark);
  font-size: 42px;
  line-height: 1;
}

.form {
  display: grid;
  gap: 13px;
}

.form label {
  display: grid;
  gap: 7px;
}

.form label span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 850;
}

input,
select,
textarea {
  width: 100%;
  min-height: 50px;
  border: 1px solid rgba(16, 32, 51, 0.14);
  border-radius: 12px;
  padding: 13px 14px;
  color: var(--text);
  background: #ffffff;
  font: inherit;
  outline: none;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(24, 168, 232, 0.8);
  box-shadow: 0 0 0 4px rgba(24, 168, 232, 0.13);
}

.form__submit {
  width: 100%;
}

.form__message {
  min-height: 22px;
  margin: 0;
  font-weight: 850;
}

.form__message.is-success {
  color: #12986f;
}

.form__message.is-error {
  color: #cf4a72;
}

.sticky-order {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 12px;
  z-index: 30;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.sticky-order strong {
  display: block;
  color: var(--accent-dark);
  font-size: 20px;
  line-height: 1;
}

.sticky-order span {
  color: var(--muted);
  font-size: 12px;
}

.footer {
  padding: 24px 0 92px;
  text-align: center;
  border-top: 1px solid var(--line);
}

.footer p {
  margin: 4px 0;
  font-size: 13px;
}

@media (max-width: 920px) {
  .hero__grid,
  .split,
  .order {
    grid-template-columns: 1fr;
  }

  .hero__visual {
    order: -1;
  }

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

@media (max-width: 640px) {
  .container {
    width: min(100% - 22px, 1120px);
  }

  .section {
    padding: 42px 0;
  }

  .section--tight {
    padding: 20px 0;
  }

  .topline__inner {
    min-height: 56px;
  }

  .brand__mark {
    width: 38px;
    height: 38px;
  }

  .hero {
    padding-top: 24px;
  }

  .hero__grid {
    gap: 22px;
  }

  .hero__actions,
  .hero__actions .button,
  .promo .button,
  .copy-panel .button {
    width: 100%;
  }

  .product-card {
    padding: 12px;
  }

  .product-card__badge {
    position: static;
    margin-top: 10px;
  }

  .promo {
    align-items: stretch;
    flex-direction: column;
  }

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

  .card {
    min-height: auto;
  }

  .split,
  .order {
    padding: 16px;
  }

  .sticky-order {
    display: flex;
  }

  .sticky-order .button {
    min-height: 48px;
    padding: 13px 16px;
  }
}