/* Lumen - Futuristic Glass theme: frosted panels, gradients, luminous */
:root {
  --navy: #0a0e27;
  --navy-2: #131a3d;
  --violet: #7c5cff;
  --cyan: #4dd4ff;
  --pearl: #f0f3ff;
  --pearl-soft: #c8d0f0;
  --line: rgba(255, 255, 255, 0.12);
  --glass: rgba(255, 255, 255, 0.06);
  --glass-strong: rgba(255, 255, 255, 0.1);
  --glow-v: 0 0 60px rgba(124, 92, 255, 0.4);
  --glow-c: 0 0 60px rgba(77, 212, 255, 0.35);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Manrope', system-ui, sans-serif;
  background: var(--navy);
  color: var(--pearl);
  line-height: 1.65;
  font-size: 16px;
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse 80% 50% at 20% 0%, rgba(124, 92, 255, 0.25), transparent 60%),
    radial-gradient(ellipse 60% 40% at 90% 20%, rgba(77, 212, 255, 0.18), transparent 60%),
    radial-gradient(ellipse 50% 40% at 50% 100%, rgba(124, 92, 255, 0.15), transparent 60%);
  background-attachment: fixed;
}
h1, h2, h3, .display {
  font-family: 'Sora', system-ui, sans-serif;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--pearl);
}
h1 { font-size: clamp(2rem, 5vw, 3.6rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: 1.15rem; }
a { color: var(--cyan); text-decoration: none; transition: color 0.3s; }
a:hover { color: var(--violet); }
img { max-width: 100%; display: block; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 28px; }

/* Glass utility */
.glass {
  background: var(--glass);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--line);
  border-radius: 24px;
}

/* Header */
header.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 14, 39, 0.7);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; padding: 18px 28px; max-width: 1180px; margin: 0 auto;
}
.brand {
  font-family: 'Sora', sans-serif;
  font-weight: 700; font-size: 1.3rem;
  letter-spacing: -0.02em;
  display: flex; align-items: center; gap: 11px;
  color: var(--pearl);
}
.brand-mark {
  width: 34px; height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  display: grid; place-items: center;
  font-size: 1rem;
  box-shadow: var(--glow-v);
}
nav.main-nav { display: flex; gap: 26px; align-items: center; flex-wrap: wrap; }
nav.main-nav a {
  color: var(--pearl-soft); font-size: 0.92rem;
  font-weight: 500; transition: color 0.3s;
}
nav.main-nav a:hover, nav.main-nav a.active { color: var(--pearl); text-decoration: none; }
.header-tools { display: flex; align-items: center; gap: 16px; }
.lang-switch {
  display: flex; padding: 4px;
  background: var(--glass); border: 1px solid var(--line);
  border-radius: 10px;
}
.lang-switch button {
  background: transparent; border: 0; padding: 6px 13px; cursor: pointer;
  font-family: inherit; font-weight: 600; font-size: 0.8rem;
  color: var(--pearl-soft); border-radius: 7px;
  transition: all 0.3s;
}
.lang-switch button.active {
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  color: var(--pearl);
}
.cart-btn {
  display: inline-flex; gap: 8px; align-items: center;
  padding: 9px 16px; border-radius: 10px;
  background: var(--glass-strong); border: 1px solid var(--line);
  color: var(--pearl); font-weight: 600; font-size: 0.88rem;
  transition: all 0.3s;
}
.cart-btn:hover { border-color: var(--cyan); text-decoration: none; box-shadow: var(--glow-c); }
.cart-count {
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  color: var(--pearl); border-radius: 999px;
  padding: 1px 9px; font-size: 0.75rem; font-weight: 700;
}

/* Buttons */
.btn {
  display: inline-block; padding: 15px 30px;
  border-radius: 12px; font-weight: 600; font-size: 0.95rem;
  cursor: pointer; border: 0; font-family: inherit;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  letter-spacing: 0.01em;
}
.btn-primary {
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  color: var(--pearl);
  box-shadow: 0 8px 32px rgba(124, 92, 255, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px rgba(124, 92, 255, 0.5);
  text-decoration: none; color: var(--pearl);
}
.btn-outline {
  background: var(--glass);
  border: 1px solid var(--line);
  color: var(--pearl);
  backdrop-filter: blur(12px);
}
.btn-outline:hover {
  border-color: var(--cyan);
  background: var(--glass-strong);
  text-decoration: none; color: var(--pearl);
}
.btn-block { display: block; width: 100%; text-align: center; }

/* Hero */
.hero {
  padding: 100px 0 90px;
}
.hero-grid {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 60px; align-items: center;
}
.hero-eyebrow {
  display: inline-block; padding: 6px 16px;
  border-radius: 999px;
  background: var(--glass);
  border: 1px solid var(--line);
  color: var(--cyan); font-size: 0.78rem;
  letter-spacing: 0.18em; text-transform: uppercase;
  font-weight: 600; margin-bottom: 26px;
}
.hero p.lead {
  font-size: 1.08rem; color: var(--pearl-soft);
  margin: 24px 0 38px; max-width: 520px; line-height: 1.75;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-image {
  position: relative;
  padding: 18px;
  border-radius: 28px;
  background: var(--glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--line);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), var(--glow-v);
}
.hero-image img { border-radius: 20px; }

/* Floating orb decoration */
.orb {
  position: absolute;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 92, 255, 0.5), transparent 70%);
  filter: blur(30px);
  pointer-events: none;
  z-index: -1;
}
.orb-1 { top: -40px; left: -60px; }
.orb-2 { bottom: -30px; right: -50px; background: radial-gradient(circle, rgba(77, 212, 255, 0.5), transparent 70%); }

/* Badges strip */
.badges {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0; padding: 26px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.badge {
  padding: 12px 18px; text-align: center;
  font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--pearl-soft);
  border-right: 1px solid var(--line);
}
.badge:last-child { border-right: 0; }
.badge::before {
  content: "◇"; margin-right: 10px;
  color: var(--cyan); font-size: 1rem;
}

/* Sections */
section { padding: 90px 0; }
.section-title { margin-bottom: 14px; }
.section-sub {
  color: var(--pearl-soft); max-width: 600px;
  margin-bottom: 56px; font-size: 1.02rem;
}

/* Cards */
.cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
}
.card {
  padding: 30px 26px;
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--line);
  border-radius: 20px;
  transition: all 0.4s ease;
}
.card:hover {
  border-color: rgba(124, 92, 255, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(124, 92, 255, 0.15);
}
.card h3 { margin-bottom: 10px; }
.card p { color: var(--pearl-soft); font-size: 0.95rem; }

/* Product grid */
.product-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}
.product-card {
  background: var(--glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--line);
  border-radius: 24px;
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: all 0.4s ease;
}
.product-card:hover {
  border-color: rgba(77, 212, 255, 0.4);
  box-shadow: 0 20px 50px rgba(77, 212, 255, 0.15);
  transform: translateY(-4px);
}
.product-card img {
  width: 100%; aspect-ratio: 1 / 1; object-fit: cover;
  border-bottom: 1px solid var(--line);
}
.product-card .pc-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.product-card h3 { margin-bottom: 6px; font-size: 1.05rem; }
.product-card .price {
  font-family: 'Sora', sans-serif;
  font-size: 1.5rem; font-weight: 700;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 12px 0 20px;
}

/* Product detail */
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.product-detail img {
  border-radius: 24px;
  border: 1px solid var(--line);
  background: var(--glass);
  padding: 20px;
  backdrop-filter: blur(20px);
}
.pd-price {
  font-family: 'Sora', sans-serif;
  font-size: 2.2rem; font-weight: 700;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 14px 0 26px;
}
.pd-block {
  margin-top: 30px; padding-top: 24px;
  border-top: 1px solid var(--line);
}
.pd-block h3 {
  margin-bottom: 12px; color: var(--cyan);
  font-size: 0.82rem; letter-spacing: 0.16em;
  text-transform: uppercase;
  font-family: 'Manrope', sans-serif; font-weight: 700;
}
.pd-block ul { padding-left: 22px; color: var(--pearl-soft); }
.pd-block li { margin-bottom: 8px; }
.pd-block p { color: var(--pearl-soft); }

/* Forms */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-grid .full { grid-column: 1 / -1; }
label {
  display: block; margin-bottom: 8px;
  font-size: 0.78rem; letter-spacing: 0.12em;
  text-transform: uppercase; font-weight: 600;
  color: var(--pearl-soft);
}
input, textarea, select {
  width: 100%; padding: 14px 18px;
  border: 1px solid var(--line);
  background: var(--glass);
  backdrop-filter: blur(12px);
  border-radius: 12px;
  font-family: inherit; font-size: 1rem; color: var(--pearl);
  transition: all 0.3s;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: var(--glow-c);
}
input::placeholder, textarea::placeholder { color: rgba(200, 208, 240, 0.5); }
textarea { resize: vertical; min-height: 120px; }

/* Cart */
.cart-item {
  display: grid; grid-template-columns: 110px 1fr auto; gap: 26px;
  align-items: center; padding: 24px;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 20px;
  margin-bottom: 16px;
  backdrop-filter: blur(20px);
}
.cart-item img { border-radius: 12px; }
.cart-item h3 { font-size: 1.05rem; margin-bottom: 6px; }
.qty {
  display: inline-flex; align-items: center; gap: 0;
  margin-top: 12px;
  background: var(--glass-strong);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
.qty button {
  width: 34px; height: 34px; border: 0;
  background: transparent;
  cursor: pointer; font-size: 1.05rem;
  color: var(--pearl); transition: all 0.3s;
}
.qty button:hover {
  background: linear-gradient(135deg, var(--violet), var(--cyan));
}
.qty span { padding: 0 16px; font-weight: 700; font-family: 'Sora', sans-serif; }
.cart-total {
  text-align: right; margin-top: 30px; padding: 30px;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 24px;
  backdrop-filter: blur(20px);
}
.cart-total .sum {
  font-family: 'Sora', sans-serif;
  font-size: 2rem; font-weight: 700;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-q {
  width: 100%; text-align: left; background: transparent; border: 0;
  padding: 26px 0; font-family: 'Sora', sans-serif;
  font-size: 1.02rem; font-weight: 500;
  color: var(--pearl); cursor: pointer;
  display: flex; justify-content: space-between;
  align-items: center; gap: 20px;
  transition: color 0.3s;
}
.faq-q:hover { color: var(--cyan); }
.faq-q::after {
  content: "+"; font-size: 1.6rem; color: var(--cyan);
  font-weight: 300; transition: transform 0.3s;
}
.faq-item.open .faq-q::after { content: "−"; }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s ease;
  color: var(--pearl-soft);
}
.faq-item.open .faq-a { max-height: 500px; padding-bottom: 26px; }

/* Legal */
.legal { max-width: 780px; margin: 0 auto; }
.legal h2 {
  margin: 42px 0 14px; font-size: 1.15rem;
  color: var(--cyan); font-family: 'Sora', sans-serif;
}
.legal h2:first-of-type { margin-top: 24px; }
.legal p, .legal li { color: var(--pearl-soft); margin-bottom: 12px; line-height: 1.8; }
.legal ol, .legal ul { padding-left: 22px; }

/* Reviews */
.review {
  padding: 30px 28px;
  background: var(--glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--line);
  border-radius: 20px;
  transition: all 0.4s ease;
}
.review:hover {
  border-color: rgba(77, 212, 255, 0.35);
  transform: translateY(-3px);
}
.review .who {
  margin-top: 18px; font-size: 0.82rem;
  letter-spacing: 0.1em; font-weight: 700;
  text-transform: uppercase;
  color: var(--pearl-soft);
}
.review .stars {
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 4px; margin-bottom: 12px;
  font-size: 1.05rem;
}
.review p { color: var(--pearl-soft); }

/* Footer */
footer.site-footer {
  margin-top: 80px;
  padding: 70px 0 30px;
  background: rgba(10, 14, 39, 0.6);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(24px);
}
footer.site-footer h4 {
  font-family: 'Manrope', sans-serif;
  font-weight: 700; color: var(--pearl);
  margin-bottom: 18px; font-size: 0.82rem;
  text-transform: uppercase; letter-spacing: 0.16em;
}
footer.site-footer a {
  color: var(--pearl-soft); font-size: 0.9rem;
  line-height: 2.1; transition: color 0.3s;
}
footer.site-footer a:hover { color: var(--cyan); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 50px; }
.footer-grid ul { list-style: none; }
.footer-grid li { margin-bottom: 2px; }
.footer-brand .brand { color: var(--pearl); margin-bottom: 16px; }
.footer-brand p { color: var(--pearl-soft); font-size: 0.9rem; margin-bottom: 18px; line-height: 1.75; }
.certs { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.cert {
  padding: 5px 12px;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 0.72rem; letter-spacing: 0.12em;
  color: var(--pearl-soft); text-transform: uppercase;
  font-weight: 600;
}
.footer-bottom {
  border-top: 1px solid var(--line);
  margin-top: 50px; padding-top: 26px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px;
  font-size: 0.78rem; color: var(--pearl-soft);
  letter-spacing: 0.06em;
}

/* Thx */
.thx-wrap { text-align: center; padding: 120px 0; }
.thx-icon {
  width: 100px; height: 100px; border-radius: 30px;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  color: var(--pearl);
  font-size: 2.6rem; display: grid; place-items: center;
  margin: 0 auto 32px;
  box-shadow: 0 20px 60px rgba(124, 92, 255, 0.5);
}

/* Banners */
.info-banner {
  padding: 18px 24px; margin: 24px 0;
  background: var(--glass);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: 14px;
  color: var(--pearl-soft); font-size: 0.95rem;
  backdrop-filter: blur(16px);
}

/* Responsive */
@media (max-width: 860px) {
  .hero-grid, .product-detail, .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  nav.main-nav { display: none; }
  .hero { padding: 60px 0; }
  section { padding: 60px 0; }
  .badge { border-right: 0; border-bottom: 1px solid var(--line); }
  .badge:last-child { border-bottom: 0; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .cart-item { grid-template-columns: 80px 1fr; padding: 18px; }
  .cart-item .ci-total { grid-column: 2; text-align: left; }
  .container { padding: 0 20px; }
}