:root {
  --ink: #080c12;
  --text: #111927;
  --muted: #667386;
  --line: #dce3ee;
  --panel: #f5f8fc;
  --blue: #2d78ff;
  --cyan: #6be4ff;
  --lime: #c9ff5a;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  overflow-x: hidden;
}

body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.55;
}

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

.wrap {
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 28px;
}

.topbar {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  background: rgba(8, 12, 18, .82);
  backdrop-filter: blur(16px);
  color: #fff;
}

.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  width: 174px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.brand img {
  width: 100%;
  height: auto;
  display: block;
}

.navlinks {
  display: flex;
  align-items: center;
  gap: 26px;
  color: #d9e5f3;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.navlinks a {
  opacity: .9;
}

.hero {
  min-height: 820px;
  position: relative;
  display: grid;
  align-items: center;
  isolation: isolate;
  overflow: hidden;
  background: #070b11;
  color: #fff;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 30% 55%, rgba(45, 120, 255, .28), transparent 28%),
    linear-gradient(90deg, rgba(5, 8, 12, .96) 0%, rgba(5, 8, 12, .74) 41%, rgba(5, 8, 12, .12) 78%);
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image: url("assets/optcla-hero-1600.webp");
  background-size: cover;
  background-position: center right;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 620px) 1fr;
  gap: 48px;
  max-width: 1220px;
  margin-right: auto;
  margin-left: max(28px, calc((100vw - 1500px) / 2));
  padding: 154px 28px 90px;
  align-items: center;
}

.hero-grid > * {
  min-width: 0;
}

.kicker {
  margin: 0 0 18px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 950;
  text-transform: uppercase;
  letter-spacing: .18em;
}

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

.hero h1 {
  margin-bottom: 22px;
  font-size: clamp(48px, 7vw, 92px);
  line-height: .94;
  letter-spacing: -0.04em;
  font-weight: 950;
}

.hero-copy {
  max-width: 600px;
  margin-bottom: 30px;
  color: #e5edf7;
  font-size: 19px;
  line-height: 1.7;
}

.price-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  margin-bottom: 28px;
}

.price {
  font-size: 36px;
  font-weight: 950;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 8px 13px;
  border: 1px solid rgba(255, 255, 255, .26);
  border-radius: 999px;
  background: rgba(255, 255, 255, .08);
  color: #eaf5ff;
  font-size: 13px;
  font-weight: 850;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.color-picker {
  width: min(620px, 100%);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, .36);
  background: rgba(255, 255, 255, .1);
}

.color-picker legend {
  width: 100%;
  margin-bottom: 2px;
  color: #fff;
  font-size: 12px;
  font-weight: 950;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.color-picker label {
  position: relative;
  display: inline-flex;
  min-height: 74px;
  width: 82px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 4px;
  background: rgba(8, 12, 18, .42);
  color: #eaf5ff;
  cursor: pointer;
  font-size: 12px;
  font-weight: 850;
}

.color-picker input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.color-picker input:checked + .sku-thumb {
  box-shadow: 0 0 0 3px #fff, 0 0 0 5px var(--blue);
}

.color-picker em {
  font-style: normal;
}

.sku-thumb {
  width: 56px;
  height: 56px;
  flex: 0 0 auto;
  overflow: hidden;
  border-radius: 3px;
  border: 1px solid rgba(255, 255, 255, .68);
  background: #0b1119;
}

.sku-thumb img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.size-picker {
  min-height: 56px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, .36);
  background: rgba(255, 255, 255, .1);
  color: #fff;
  font-size: 12px;
  font-weight: 950;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.size-picker select {
  min-width: 92px;
  border: 0;
  border-radius: 2px;
  background: #fff;
  color: #101827;
  padding: 9px 10px;
  font: inherit;
  letter-spacing: 0;
}

.checkout-status {
  min-height: 24px;
  margin: 14px 0 0;
  color: #cfe8ff;
  font-size: 13px;
}

.btn {
  display: inline-flex;
  min-height: 56px;
  align-items: center;
  justify-content: center;
  padding: 15px 28px;
  border-radius: 4px;
  border: 0;
  cursor: pointer;
  font-size: 13px;
  font-weight: 950;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.btn:disabled {
  cursor: wait;
  opacity: .72;
}

.btn-primary {
  color: #07101b;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 20px 46px rgba(45, 120, 255, .34);
}

.btn-secondary {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .54);
  background: rgba(255, 255, 255, .08);
}

.hero-card {
  align-self: end;
  justify-self: end;
  width: min(390px, 100%);
  border: 1px solid rgba(255, 255, 255, .18);
  background: rgba(10, 16, 24, .72);
  padding: 24px;
  backdrop-filter: blur(16px);
}

.hero-card b {
  display: block;
  margin-bottom: 8px;
  font-size: 22px;
}

.hero-card span {
  color: #cbd7e6;
  font-size: 14px;
}

.proof {
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.proof-item {
  padding: 25px 18px;
  border-right: 1px solid var(--line);
  text-align: center;
}

.proof-item:last-child {
  border-right: 0;
}

.proof-item strong {
  display: block;
  font-size: 15px;
}

.proof-item span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.section {
  padding: 96px 0;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 540px) minmax(0, 520px);
  gap: 76px;
  align-items: end;
  margin-bottom: 42px;
}

.section-head h2,
.split-copy h2,
.kit-copy h2,
.trust h2 {
  font-size: clamp(34px, 4.8vw, 62px);
  line-height: 1.02;
  letter-spacing: -0.04em;
  font-weight: 950;
}

.section-head p,
.split-copy p,
.kit-copy p,
.trust-card p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}

.tech-board {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 18px;
}

.tech-visual {
  min-height: 570px;
  position: relative;
  border: 1px solid var(--line);
  background-image: linear-gradient(180deg, rgba(0, 0, 0, .04), rgba(0, 0, 0, .2)), url("assets/optcla-detail-1400.webp");
  background-size: cover;
  background-position: center;
}

.tech-note {
  position: absolute;
  left: 28px;
  bottom: 28px;
  max-width: 390px;
  padding: 22px;
  color: #fff;
  background: rgba(8, 12, 18, .8);
  backdrop-filter: blur(10px);
}

.tech-note b {
  display: block;
  margin-bottom: 8px;
  font-size: 25px;
}

.tech-note span {
  color: #dce8f5;
  font-size: 14px;
}

.feature-stack {
  display: grid;
  gap: 18px;
}

.feature {
  display: flex;
  min-height: 178px;
  flex-direction: column;
  justify-content: center;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 30px;
}

.feature b {
  display: block;
  margin-bottom: 10px;
  font-size: 22px;
}

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

.anatomy {
  background: #f7f9fd;
}

.anatomy-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: stretch;
}

.anatomy-visual {
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: #f8f9fb;
  overflow: hidden;
}

.anatomy-visual img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
  object-position: center;
}

.anatomy-visual picture {
  width: 100%;
  display: block;
}

.anatomy-copy {
  display: grid;
  grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
  gap: 34px;
  align-items: start;
  border: 1px solid var(--line);
  background: #fff;
  padding: 34px;
}

.anatomy-copy h3 {
  margin-bottom: 0;
  color: var(--text);
  font-size: 32px;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.anatomy-intro .kicker {
  margin-bottom: 14px;
}

.anatomy-points {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.anatomy-points div {
  padding: 16px;
  border: 1px solid var(--line);
  background: #f8fafc;
}

.anatomy-points strong {
  display: block;
  margin-bottom: 6px;
  color: var(--text);
  font-size: 17px;
}

.anatomy-points span {
  display: block;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.split {
  background: #0b1119;
  color: #fff;
}

.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 58px;
  align-items: center;
}

.lifestyle {
  min-height: 560px;
  border: 1px solid rgba(255, 255, 255, .14);
  background-image: url("assets/optcla-lifestyle-1400.webp");
  background-size: cover;
  background-position: center;
}

.split-copy h2 {
  color: #fff;
}

.split-copy p {
  color: #d7e3f1;
}

.specs {
  display: grid;
  gap: 12px;
  margin: 30px 0;
}

.spec {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .14);
  color: #e7f0fb;
}

.size-band {
  background: #fff;
}

.sizes {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.size {
  display: inline-flex;
  min-width: 76px;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: #fff;
  font-weight: 900;
}

.kit {
  background: #f3f6fb;
}

.kit-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.kit-card {
  min-height: 300px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 34px;
}

.kit-card h3 {
  font-size: 28px;
  line-height: 1.1;
}

.trust {
  background: #080c12;
  color: #fff;
}

.trust h2 {
  color: #fff;
  max-width: 760px;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 38px;
}

.trust-card {
  border: 1px solid rgba(255, 255, 255, .13);
  background: linear-gradient(180deg, #141c28, #0f1620);
  padding: 30px;
}

.trust-card h3 {
  margin-bottom: 10px;
  color: #fff;
}

.trust-card p {
  color: #cdd8e6;
  font-size: 15px;
}

.payment-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.payment-pills span {
  padding: 9px 12px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 999px;
  background: rgba(255, 255, 255, .08);
  color: #eef7ff;
  font-size: 13px;
  font-weight: 900;
}

.final {
  padding: 110px 0;
  background-image: linear-gradient(90deg, rgba(8, 12, 18, .96), rgba(8, 12, 18, .54)), url("assets/optcla-hero-1600.webp");
  background-size: cover;
  background-position: center right;
  color: #fff;
  text-align: center;
}

.final h2 {
  max-width: 760px;
  margin: 0 auto 18px;
  color: #fff;
  font-size: clamp(38px, 5vw, 68px);
  line-height: 1.02;
  font-weight: 950;
  letter-spacing: -0.04em;
}

.final p {
  max-width: 650px;
  margin: 0 auto 30px;
  color: #dbe8f5;
  font-size: 18px;
}

.footer {
  background: #05080d;
  color: #b9c5d4;
  padding: 44px 0;
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.1fr 1.15fr 1.35fr .8fr;
  gap: 30px;
  align-items: start;
}

.footer strong {
  display: block;
  margin-bottom: 12px;
  color: #fff;
  font-size: 13px;
  font-weight: 950;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.footer-brand span,
.footer-contact a {
  display: block;
  color: #b9c5d4;
}

.footer-brand strong {
  margin-bottom: 8px;
  font-size: 20px;
  letter-spacing: .18em;
}

.footer-contact {
  display: grid;
  gap: 7px;
}

.footer-contact a:hover,
.footer-links a:hover {
  color: #fff;
}

.footer-contact .telegram-link,
.policy-page .telegram-link {
  width: max-content;
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 14px;
  border-radius: 4px;
  background: #24a1de;
  color: #fff;
  font-size: 13px;
  font-weight: 900;
}

.footer-contact .telegram-link:hover,
.policy-page .telegram-link:hover {
  color: #fff;
  background: #2d78ff;
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer a {
  color: #eaf2ff;
}

.payment-image {
  max-width: 280px;
  padding: 8px;
  border-radius: 6px;
  background: #fff;
}

.payment-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 3px;
}

.support-widget {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 40;
}

.support-widget input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.support-fab {
  width: 62px;
  height: 62px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 999px;
  background: linear-gradient(135deg, #24a1de, #2d78ff);
  color: #fff;
  box-shadow: 0 18px 42px rgba(13, 42, 84, .35);
  cursor: pointer;
  font-size: 15px;
  font-weight: 950;
  letter-spacing: .06em;
}

.support-panel {
  position: absolute;
  right: 0;
  bottom: 78px;
  width: min(328px, calc(100vw - 36px));
  display: grid;
  gap: 10px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, .18);
  background: rgba(8, 12, 18, .96);
  color: #fff;
  box-shadow: 0 26px 60px rgba(0, 0, 0, .28);
  transform: translateY(12px);
  opacity: 0;
  visibility: hidden;
  transition: .2s ease;
}

.support-panel strong {
  font-size: 18px;
}

.support-panel span {
  color: #cbd7e6;
  font-size: 13px;
}

.support-action {
  min-height: 42px;
  display: flex;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, .14);
  background: rgba(255, 255, 255, .08);
  color: #fff;
  font-size: 13px;
  font-weight: 850;
}

.support-action.telegram {
  border-color: rgba(36, 161, 222, .7);
  background: #24a1de;
}

.support-widget input:checked ~ .support-panel,
.support-widget:focus-within .support-panel {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.policy-page {
  padding: 132px 0 80px;
}

.policy-page h1 {
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

.policy-page article {
  max-width: 860px;
}

.policy-page h2 {
  margin-top: 34px;
}

.notice {
  border-left: 3px solid var(--blue);
  background: var(--panel);
  padding: 18px 20px;
  color: var(--muted);
}

@media (max-width: 900px) {
  .navlinks {
    display: none;
  }

  .hero-grid,
  .section-head,
  .tech-board,
  .anatomy-board,
  .split-grid,
  .kit-grid {
    grid-template-columns: 1fr;
  }

  .hero-media {
    opacity: .58;
  }

  .hero-media {
    background-image: url("assets/optcla-hero-900.webp");
  }

  .tech-visual {
    background-image: linear-gradient(180deg, rgba(0, 0, 0, .04), rgba(0, 0, 0, .2)), url("assets/optcla-detail-760.webp");
  }

  .lifestyle {
    background-image: url("assets/optcla-lifestyle-760.webp");
  }

  .final {
    background-image: linear-gradient(90deg, rgba(8, 12, 18, .96), rgba(8, 12, 18, .54)), url("assets/optcla-hero-900.webp");
  }

  .hero-card {
    justify-self: start;
  }

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

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

@media (max-width: 560px) {
  .wrap {
    padding: 0 18px;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid {
    padding: 120px 18px 72px;
  }

  .hero h1 {
    max-width: min(100%, 354px);
    font-size: 42px;
    line-height: 1.04;
  }

  .hero-copy {
    max-width: min(100%, 354px);
    font-size: 17px;
  }

  .price-row {
    max-width: 354px;
  }

  .actions {
    display: grid;
  }

  .color-picker {
    width: 100%;
  }

  .color-picker label {
    width: 74px;
    flex: 0 0 74px;
    font-size: 11px;
  }

  .sku-thumb {
    width: 50px;
    height: 50px;
  }

  .btn {
    width: 100%;
  }

  .proof-grid,
  .trust-grid {
    grid-template-columns: 1fr;
  }

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

  .support-widget {
    right: 16px;
    bottom: 16px;
  }

  .support-fab {
    width: 56px;
    height: 56px;
  }

  .proof-item {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .section {
    padding: 72px 0;
  }

  .tech-visual,
  .lifestyle {
    min-height: 380px;
  }

  .anatomy-copy,
  .anatomy-points {
    grid-template-columns: 1fr;
  }
}