:root {
  --bg-lilac: #ebe6f5;
  --bg-warm: #f6f4ef;
  --surface: #ffffff;
  --surface-soft: #f7f4ff;
  --text: #11121a;
  --muted: #6f7182;
  --line: rgba(26, 24, 38, 0.08);
  --violet: #7447f5;
  --violet-dark: #211046;
  --violet-mid: #4b21ba;
  --dark: #101017;
  --shadow: 0 26px 60px rgba(38, 31, 55, 0.12);
  --shadow-strong: 0 36px 80px rgba(25, 19, 42, 0.24);
  --radius-lg: 26px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1050px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg-warm);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}

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

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

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

.container {
  width: min(var(--container), calc(100% - 44px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(247, 245, 250, 0.82);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-width: max-content;
  padding: 7px 10px 7px 8px;
  color: #ffffff;
  background: linear-gradient(135deg, #090814, #2c145c);
  border-radius: 5px;
  font-weight: 760;
  letter-spacing: -0.03em;
  box-shadow: 0 8px 22px rgba(38, 16, 91, 0.22);
}

.brand-mark {
  width: 18px;
  height: 18px;
  display: inline-grid;
  place-items: center;
  color: #d7c7ff;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 50%;
  font-size: 10px;
}

.brand-name {
  font-size: 14px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 4vw, 42px);
  color: #3b3d4b;
  font-size: 12px;
  font-weight: 760;
}

.site-nav a {
  opacity: 0.9;
  transition: opacity 0.2s ease, color 0.2s ease;
}

.site-nav a:hover {
  color: var(--violet-mid);
  opacity: 1;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 76px;
  padding: 11px 17px;
  color: #ffffff;
  background: #05050a;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  box-shadow: 0 12px 28px rgba(5, 5, 10, 0.2);
}

.section-soft {
  background: radial-gradient(circle at 16% 0%, rgba(123, 81, 245, 0.12), transparent 36%), var(--bg-lilac);
}

.section-warm {
  background: radial-gradient(circle at 90% 20%, rgba(123, 81, 245, 0.06), transparent 34%), var(--bg-warm);
}

.hero {
  padding: 74px 0 78px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.04fr;
  gap: clamp(30px, 6vw, 72px);
  align-items: center;
}

.hero-copy {
  max-width: 570px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  padding: 7px 11px;
  color: var(--violet-mid);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(111, 68, 240, 0.15);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 850;
  letter-spacing: -0.01em;
}

.eyebrow span {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--violet);
  box-shadow: 0 0 0 4px rgba(117, 71, 245, 0.14);
}

.eyebrow.small {
  margin-bottom: 12px;
  font-size: 11px;
}

.eyebrow.dark {
  color: #e9ddff;
  background: rgba(116, 71, 245, 0.15);
  border-color: rgba(196, 174, 255, 0.16);
}

.hero h1,
.contact-page h1 {
  max-width: 620px;
  margin-bottom: 22px;
  font-size: clamp(48px, 7.2vw, 82px);
  line-height: 0.88;
  letter-spacing: -0.075em;
  font-weight: 900;
}

.lead {
  max-width: 620px;
  color: var(--muted);
  font-size: clamp(15px, 1.65vw, 18px);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
  margin: 28px 0 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border: 0;
  border-radius: 999px;
  font: inherit;
  font-size: 12px;
  font-weight: 850;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-dark {
  color: #ffffff;
  background: #07070d;
  box-shadow: 0 16px 32px rgba(12, 10, 18, 0.18);
}

.btn-light {
  color: #171725;
  background: #ffffff;
  box-shadow: 0 14px 32px rgba(40, 34, 55, 0.1);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.metrics article {
  min-height: 98px;
  padding: 20px 18px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 26px rgba(43, 35, 55, 0.07);
}

.metrics strong {
  display: block;
  margin-bottom: 7px;
  font-size: 20px;
  line-height: 1;
  letter-spacing: -0.04em;
}

.metrics span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.25;
}

.card-image {
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.hero-visual {
  position: relative;
  justify-self: end;
  width: min(100%, 520px);
  background: #ddd5cb;
  box-shadow: 0 28px 60px rgba(49, 42, 61, 0.2);
}

.hero-visual img {
  width: 100%;
  height: auto;
}

.problem {
  padding: 28px 0 78px;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.95fr;
  gap: 24px;
  align-items: stretch;
}

.glass-card,
.mini-card,
.validation-card,
.compare-card,
.contact-form {
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.86);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 34px rgba(38, 32, 55, 0.07);
}

.wide-card {
  min-height: 275px;
  padding: 34px 36px;
}

.wide-card h2,
.operation-copy h2,
.split-heading h2,
.dose-card h2,
.cta-card h2,
.contact-copy h1 {
  letter-spacing: -0.055em;
}

.wide-card h2 {
  max-width: 620px;
  margin-bottom: 15px;
  font-size: clamp(26px, 3.2vw, 42px);
  line-height: 0.98;
}

.wide-card p:not(.eyebrow) {
  max-width: 710px;
  color: var(--muted);
  font-size: 14px;
}

.mini-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.mini-card {
  padding: 22px;
  min-height: 126px;
}

.mini-icon {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  font-size: 17px;
}

.mini-card h3,
.feature-item h3,
.use-card h3,
.compare-card h3,
.validation-card h3,
.operation-steps h3 {
  margin-bottom: 5px;
  font-size: 15px;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.mini-card p,
.feature-item p,
.use-card p,
.validation-card p,
.operation-steps p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.operation-section {
  padding: 70px 0 80px;
  background: linear-gradient(180deg, var(--bg-lilac), var(--bg-warm));
}

.operation-card {
  display: grid;
  grid-template-columns: 0.86fr 1fr;
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  min-height: 355px;
  padding: clamp(34px, 5vw, 54px);
  color: #ffffff;
  background: radial-gradient(circle at 74% 26%, rgba(117, 71, 245, 0.42), transparent 32%), linear-gradient(135deg, #0d0d15 0%, #11101a 45%, #221044 100%);
  border-radius: 36px;
  box-shadow: var(--shadow-strong);
}

.operation-copy h2 {
  max-width: 460px;
  margin-bottom: 18px;
  font-size: clamp(34px, 5.2vw, 56px);
  line-height: 0.91;
}

.operation-copy p:not(.eyebrow) {
  max-width: 500px;
  color: rgba(255, 255, 255, 0.68);
}

.operation-steps {
  display: grid;
  gap: 14px;
}

.operation-steps article {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 19px 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 17px;
}

.operation-steps span {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  color: #ffffff;
  background: linear-gradient(135deg, #8f62ff, #6737ef);
  border-radius: 11px;
  font-weight: 850;
}

.operation-steps h3 {
  color: #ffffff;
}

.operation-steps p {
  color: rgba(255, 255, 255, 0.62);
}

.product-section {
  padding: 64px 0 60px;
}

.split-heading {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 34px;
  align-items: end;
  margin-bottom: 36px;
}

.split-heading h2 {
  max-width: 650px;
  margin-bottom: 0;
  font-size: clamp(34px, 5.2vw, 56px);
  line-height: 0.94;
}

.split-heading p {
  max-width: 360px;
  justify-self: end;
  margin-bottom: 9px;
  color: var(--muted);
  font-size: 13px;
}

.product-grid {
  display: grid;
  grid-template-columns: 0.98fr 1fr;
  gap: 24px;
  align-items: center;
}

.device-card {
  background: #ffffff;
}

.device-card img {
  width: 100%;
}

.feature-list {
  display: grid;
  gap: 15px;
}

.feature-item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
  align-items: start;
  padding: 18px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: 0 14px 30px rgba(40, 34, 55, 0.06);
}

.feature-item > span {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: var(--violet-mid);
  background: var(--surface-soft);
  border-radius: 12px;
  font-size: 12px;
  font-weight: 900;
}

.dose-section {
  padding: 58px 0 64px;
}

.dose-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: stretch;
}

.uv-card,
.dose-card {
  min-height: 360px;
}

.uv-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dose-card {
  padding: 34px 36px;
  background: #f2edff;
  border-color: rgba(116, 71, 245, 0.16);
}

.dose-card h2 {
  margin-bottom: 18px;
  font-size: clamp(34px, 4.5vw, 54px);
  line-height: 1;
}

.dose-card h2 strong {
  font-size: 1.35em;
}

.dose-card > p:not(.eyebrow):not(.note) {
  color: #56546b;
  font-size: 14px;
}

.bar-list {
  display: grid;
  gap: 10px;
  margin: 24px 0 16px;
}

.bar-row {
  display: grid;
  grid-template-columns: 150px 1fr 48px;
  align-items: center;
  gap: 12px;
  color: #555468;
  font-size: 12px;
}

.bar-row b {
  text-align: right;
  color: #242234;
  font-size: 12px;
}

.bar {
  height: 8px;
  overflow: hidden;
  background: rgba(116, 71, 245, 0.18);
  border-radius: 999px;
}

.bar i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #8b5cff, #5124cf);
  border-radius: inherit;
}

.note,
.form-note {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

.use-section,
.comparison-section,
.validation-section {
  padding: 58px 0 60px;
}

.use-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 17px;
}

.use-card {
  overflow: hidden;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 34px rgba(40, 34, 55, 0.08);
}

.use-card img {
  width: 100%;
  aspect-ratio: 1.35 / 1;
  object-fit: cover;
}

.use-card div {
  padding: 17px 18px 20px;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 17px;
}

.compare-card {
  padding: 24px 24px 26px;
}

.compare-card h3 {
  margin-bottom: 18px;
  font-size: 17px;
}

.compare-card ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.compare-card li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  font-size: 12px;
}

.compare-card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--violet);
  font-weight: 900;
}

.compare-dark {
  color: #ffffff;
  background: radial-gradient(circle at 80% 10%, rgba(113, 74, 250, 0.25), transparent 35%), #12111d;
  border-color: rgba(255, 255, 255, 0.06);
}

.compare-dark li {
  color: rgba(255, 255, 255, 0.74);
}

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

.validation-card {
  padding: 24px 24px 26px;
}

.validation-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  color: var(--violet-mid);
  background: var(--surface-soft);
  border-radius: 12px;
  font-weight: 900;
}

.cta-section {
  padding: 62px 0 70px;
}

.cta-card {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  min-height: 172px;
  padding: clamp(30px, 5vw, 48px);
  color: #ffffff;
  background: radial-gradient(circle at 98% 60%, #794cff 0 18%, transparent 18.5%), linear-gradient(135deg, #11101d, #291053 70%, #754cff 100%);
  border-radius: 29px;
  box-shadow: var(--shadow-strong);
}

.cta-card h2 {
  margin-bottom: 11px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1;
}

.cta-card p {
  max-width: 640px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.74);
  font-size: 14px;
}


.contact-cta {
  justify-content: center;
  text-align: center;
}

.cta-contact-copy {
  max-width: 720px;
  margin: 0 auto;
}

.cta-contact-copy p {
  max-width: none;
  font-size: clamp(16px, 2.2vw, 19px);
}

.cta-contact-copy p a {
  color: #ffffff;
  font-weight: 800;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.45);
}

.cta-contact-copy p a:hover,
.cta-contact-copy p a:focus-visible {
  border-bottom-color: #ffffff;
}

.social-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-width: 148px;
  padding: 13px 18px;
  color: #ffffff;
  text-decoration: none;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.social-link:hover,
.social-link:focus-visible {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.45);
}

.social-link svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
  flex: 0 0 auto;
}

.site-footer {
  background: var(--bg-warm);
  border-top: 1px solid rgba(26, 24, 38, 0.07);
}

.footer-inner {
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: #96919c;
}

/* Contact page */
.contact-page {
  min-height: calc(100vh - 120px);
  padding: 92px 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 44px;
  align-items: start;
}

.contact-copy h1 {
  max-width: 560px;
  font-size: clamp(44px, 6vw, 72px);
  line-height: 0.91;
}

.contact-data {
  margin-top: 28px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-md);
}

.contact-data p {
  margin: 0 0 8px;
  color: var(--muted);
}

.contact-data p:last-child {
  margin-bottom: 0;
}

.contact-data a {
  color: var(--violet-mid);
  font-weight: 800;
}

.contact-form {
  display: grid;
  gap: 18px;
  padding: 32px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: #343142;
  font-size: 12px;
  font-weight: 850;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 14px 15px;
  color: var(--text);
  background: #fbfaff;
  border: 1px solid rgba(31, 27, 48, 0.1);
  border-radius: 13px;
  font: inherit;
  outline: 0;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: rgba(116, 71, 245, 0.45);
  box-shadow: 0 0 0 4px rgba(116, 71, 245, 0.12);
}

.contact-form textarea {
  resize: vertical;
}

.contact-form .btn {
  justify-self: start;
}

@media (max-width: 920px) {
  .site-nav {
    display: none;
  }

  .hero-grid,
  .problem-grid,
  .operation-card,
  .product-grid,
  .dose-grid,
  .split-heading,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual,
  .split-heading p {
    justify-self: start;
  }

  .metrics,
  .use-grid,
  .comparison-grid,
  .validation-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .wide-card {
    min-height: 0;
  }

  .operation-card {
    border-radius: 28px;
  }

  .cta-card {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .nav-wrap {
    height: 56px;
  }

  .nav-cta {
    min-width: 0;
    padding-inline: 14px;
  }

  .brand-name {
    font-size: 13px;
  }

  .hero {
    padding: 50px 0 56px;
  }

  .hero h1,
  .contact-page h1 {
    font-size: clamp(44px, 14vw, 62px);
  }

  .metrics,
  .mini-card-grid,
  .use-grid,
  .comparison-grid,
  .validation-grid {
    grid-template-columns: 1fr;
  }

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

  .wide-card,
  .operation-card,
  .dose-card,
  .contact-form {
    padding: 24px;
  }

  .operation-section,
  .product-section,
  .dose-section,
  .use-section,
  .comparison-section,
  .validation-section,
  .cta-section {
    padding-block: 46px;
  }

  .operation-copy h2,
  .split-heading h2 {
    font-size: clamp(34px, 12vw, 48px);
  }

  .bar-row {
    grid-template-columns: 1fr 1fr 42px;
    gap: 8px;
    font-size: 11px;
  }

  .footer-inner {
    min-height: 82px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }
}