:root {
  --bg: #081120;
  --bg-soft: #0d1728;
  --surface: rgba(255, 255, 255, 0.06);
  --surface-strong: rgba(255, 255, 255, 0.1);
  --surface-light: #111e34;
  --border: rgba(255, 255, 255, 0.12);
  --text: #e9f0ff;
  --text-muted: #9fb0d0;
  --accent: #68b4ff;
  --accent-strong: #7a63ff;
  --success: #5be7a9;
  --warning: #ffd36b;
  --danger: #ff8f8f;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.28);
  --radius: 22px;
  --radius-sm: 14px;
  --container: 1180px;
  --card-gap: 22px;
  --transition: 180ms ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(122, 99, 255, 0.2), transparent 28%),
    radial-gradient(circle at top left, rgba(104, 180, 255, 0.14), transparent 24%),
    linear-gradient(180deg, #07101e 0%, #0b1322 55%, #07101d 100%);
  min-height: 100vh;
}

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

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

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.container {
  width: min(var(--container), calc(100% - 32px));
  margin: 0 auto;
}

.section {
  padding: 84px 0;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: end;
  margin-bottom: 28px;
}

.section-head h2,
.section-head h3 {
  margin: 0 0 10px;
  font-size: clamp(1.8rem, 2vw, 2.5rem);
}

.section-head p {
  margin: 0;
  color: var(--text-muted);
  max-width: 680px;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(104, 180, 255, 0.12);
  color: #d7e7ff;
  border: 1px solid rgba(104, 180, 255, 0.24);
  font-size: 0.92rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(16px);
  background: rgba(8, 17, 32, 0.76);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(104, 180, 255, 0.95), rgba(122, 99, 255, 0.95));
  box-shadow: 0 14px 36px rgba(104, 180, 255, 0.22);
}

.brand small {
  display: block;
  color: var(--text-muted);
  font-weight: 500;
}

.nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav a {
  padding: 11px 14px;
  border-radius: 12px;
  color: var(--text-muted);
  transition: color var(--transition), background var(--transition);
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 18px;
  border-radius: 14px;
  border: 1px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
  font-weight: 600;
}

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

.btn-primary {
  background: linear-gradient(135deg, rgba(104, 180, 255, 0.98), rgba(122, 99, 255, 0.95));
  color: #06101d;
  box-shadow: 0 14px 30px rgba(104, 180, 255, 0.22);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border);
  color: var(--text);
}

.btn-ghost {
  color: var(--text-muted);
  border-color: var(--border);
  background: transparent;
}

.hero {
  padding: 72px 0 34px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: stretch;
}

.hero-card,
.stats-card,
.feature-card,
.catalog-toolbar,
.product-card,
.info-card,
.purchase-box,
.detail-card,
.faq-item,
.footer-card,
.newsletter-card,
.empty-state,
.demo-banner,
.testimonial-card,
.related-card {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 38px;
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: auto -12% -40% auto;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(104, 180, 255, 0.24), transparent 66%);
  pointer-events: none;
}

.hero-card h1 {
  margin: 18px 0 14px;
  font-size: clamp(2.3rem, 4vw, 4.3rem);
  line-height: 1.02;
}

.hero-card p {
  margin: 0;
  font-size: 1.08rem;
  color: var(--text-muted);
  max-width: 64ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.hero-points {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  gap: 12px;
}

.hero-points li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #d9e5ff;
}

.hero-points li span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--success), rgba(104, 180, 255, 0.95));
  box-shadow: 0 0 0 7px rgba(91, 231, 169, 0.12);
}

.hero-side {
  display: grid;
  gap: 18px;
}

.stats-card {
  padding: 24px;
  display: grid;
  gap: 18px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.stat-box {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.stat-box strong {
  display: block;
  font-size: 1.7rem;
  margin-bottom: 8px;
}

.stat-box span {
  color: var(--text-muted);
}

.demo-banner {
  padding: 22px;
  display: grid;
  gap: 12px;
  background: linear-gradient(180deg, rgba(255, 211, 107, 0.08), rgba(255, 255, 255, 0.04));
  border-color: rgba(255, 211, 107, 0.18);
}

.demo-banner strong {
  font-size: 1.05rem;
}

.demo-banner p {
  margin: 0;
  color: var(--text-muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--card-gap);
}

.feature-card {
  padding: 24px;
  min-height: 100%;
}

.feature-icon {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(104, 180, 255, 0.18), rgba(122, 99, 255, 0.18));
  border: 1px solid rgba(104, 180, 255, 0.2);
  margin-bottom: 18px;
  font-size: 1.25rem;
}

.feature-card h3 {
  margin: 0 0 12px;
  font-size: 1.15rem;
}

.feature-card p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.65;
}

.catalog-toolbar {
  padding: 18px;
  display: grid;
  gap: 16px;
  margin-bottom: 24px;
}

.catalog-toolbar-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
}

.search-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  flex: 1 1 320px;
}

.search-wrap input {
  width: 100%;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--text);
}

.search-wrap input::placeholder {
  color: #7f90af;
}

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

.chip {
  min-height: 44px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-muted);
  transition: all var(--transition);
}

.chip.is-active,
.chip:hover,
.chip:focus-visible {
  background: rgba(104, 180, 255, 0.16);
  color: var(--text);
  border-color: rgba(104, 180, 255, 0.24);
}

.catalog-grid,
.related-grid,
.spec-grid,
.info-grid,
.steps-grid,
.footer-grid {
  display: grid;
  gap: var(--card-gap);
}

.catalog-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.product-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.product-card:hover,
.product-card:focus-within {
  transform: translateY(-4px);
  border-color: rgba(104, 180, 255, 0.24);
}

.product-thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0));
}

.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-body {
  padding: 20px;
  display: grid;
  gap: 16px;
  flex: 1;
}

.product-tags,
.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 0.88rem;
  background: rgba(104, 180, 255, 0.14);
  border: 1px solid rgba(104, 180, 255, 0.22);
  color: #dbe9ff;
}

.tag-soft {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border);
  color: var(--text-muted);
}

.product-card h3,
.related-card h3 {
  margin: 0;
  font-size: 1.22rem;
}

.product-card p,
.related-card p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.58;
}

.price-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.price-block {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.price {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.old-price {
  color: #7d90b2;
  text-decoration: line-through;
}

.card-actions,
.purchase-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.empty-state {
  padding: 42px;
  text-align: center;
  color: var(--text-muted);
}

.breadcrumbs {
  padding-top: 26px;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 0;
  color: var(--text-muted);
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.breadcrumbs li:not(:last-child)::after {
  content: "•";
  color: #5e708f;
}

.product-hero {
  padding: 24px 0 34px;
}

.product-layout {
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  gap: 24px;
}

.detail-card {
  padding: 26px;
}

.product-visual {
  min-height: 320px;
  display: grid;
  place-items: center;
  padding: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
}

.product-visual img {
  max-height: 420px;
  width: 100%;
  object-fit: contain;
  filter: drop-shadow(0 18px 40px rgba(0, 0, 0, 0.28));
}

.product-copy {
  display: grid;
  gap: 18px;
}

.product-copy h1 {
  margin: 0;
  font-size: clamp(2.1rem, 3vw, 3.3rem);
  line-height: 1.03;
}

.product-copy p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.72;
}

.quick-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.quick-point {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
}

.quick-point strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1rem;
}

.quick-point span {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.purchase-box {
  padding: 24px;
  display: grid;
  gap: 18px;
  position: sticky;
  top: 96px;
}

.purchase-box h2 {
  margin: 0;
  font-size: 1.1rem;
}

.purchase-note {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.65;
}

.badges-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

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

.list-clean li,
.steps-list li,
.check-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.bullet {
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(104, 180, 255, 0.15);
  color: #dbe9ff;
  border: 1px solid rgba(104, 180, 255, 0.18);
  font-weight: 700;
}

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

.info-card {
  padding: 24px;
}

.info-card h3 {
  margin: 0 0 16px;
  font-size: 1.16rem;
}

.info-card p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.66;
}

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

.spec-item {
  padding: 18px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
}

.spec-item strong {
  display: block;
  margin-bottom: 8px;
}

.spec-item span {
  color: var(--text-muted);
}

.steps-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.step-card {
  padding: 22px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.step-card strong {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(104, 180, 255, 0.92), rgba(122, 99, 255, 0.92));
  color: #06101d;
  margin-bottom: 14px;
}

.step-card p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.62;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  padding: 0;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  min-height: 72px;
  padding: 18px 22px;
  border: 0;
  background: transparent;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  font-weight: 600;
}

.faq-question span:last-child {
  color: var(--text-muted);
  font-size: 1.5rem;
  line-height: 1;
}

.faq-answer {
  padding: 0 22px 20px;
  color: var(--text-muted);
  line-height: 1.7;
  display: none;
}

.faq-item.is-open .faq-answer {
  display: block;
}

.related-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.related-card {
  padding: 18px;
  display: grid;
  gap: 14px;
}

.related-thumb {
  aspect-ratio: 16 / 10;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
}

.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--card-gap);
}

.testimonial-card {
  padding: 24px;
  display: grid;
  gap: 18px;
}

.testimonial-card p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.7;
}

.testimonial-author {
  display: grid;
  gap: 6px;
}

.testimonial-author strong {
  font-size: 1rem;
}

.testimonial-author span {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.newsletter-card {
  padding: 26px;
  display: grid;
  gap: 18px;
}

.newsletter-card p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.65;
}

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

.newsletter-form input {
  flex: 1 1 260px;
  min-height: 54px;
  padding: 0 16px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  outline: none;
}

.site-footer {
  padding: 24px 0 40px;
}

.footer-grid {
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
  align-items: start;
}

.footer-card {
  padding: 24px;
  display: grid;
  gap: 16px;
}

.footer-card p,
.footer-card a,
.footer-bottom {
  color: var(--text-muted);
}

.footer-card h3 {
  margin: 0;
}

.footer-links {
  display: grid;
  gap: 10px;
}

.footer-bottom {
  padding-top: 20px;
  text-align: center;
  font-size: 0.95rem;
}

.toast-wrap {
  position: fixed;
  right: 18px;
  bottom: 18px;
  display: grid;
  gap: 10px;
  z-index: 90;
  width: min(100%, 360px);
}

.toast {
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(11, 19, 33, 0.92);
  border: 1px solid rgba(104, 180, 255, 0.22);
  box-shadow: var(--shadow);
  color: var(--text);
}

.toast strong {
  display: block;
  margin-bottom: 6px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

@media (max-width: 1080px) {
  .feature-grid,
  .steps-grid,
  .testimonial-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .hero-grid,
  .product-layout,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .purchase-box {
    position: static;
  }
}

@media (max-width: 780px) {
  .nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 16px;
    right: 16px;
    padding: 12px;
    border-radius: 18px;
    border: 1px solid var(--border);
    background: rgba(8, 17, 32, 0.98);
    display: none;
    flex-direction: column;
    align-items: stretch;
    box-shadow: var(--shadow);
  }

  .nav.is-open {
    display: flex;
  }

  .nav a {
    padding: 14px 16px;
  }

  .menu-toggle {
    display: inline-grid;
    place-items: center;
  }

  .nav-actions .btn-secondary {
    display: none;
  }

  .feature-grid,
  .catalog-grid,
  .related-grid,
  .testimonial-grid,
  .steps-grid,
  .info-grid,
  .spec-grid,
  .quick-points {
    grid-template-columns: 1fr;
  }

  .hero-card,
  .detail-card,
  .purchase-box,
  .info-card,
  .feature-card,
  .product-body,
  .testimonial-card,
  .footer-card,
  .newsletter-card {
    padding: 22px;
  }

  .section {
    padding: 68px 0;
  }

  .hero {
    padding-top: 48px;
  }

  .container {
    width: min(var(--container), calc(100% - 24px));
  }
}