:root {
      --bg: #090b12;
      --surface: #111522;
      --surface-2: #171c2b;
      --text: #f7f8fc;
      --muted: #a7afc2;
      --line: rgba(255,255,255,.09);
      --accent: #7c5cff;
      --accent-2: #19d3ae;
      --danger: #ff5c7a;
      --radius: 22px;
      --container: 1160px;
      --shadow: 0 24px 70px rgba(0,0,0,.35);
    }

    * { box-sizing: border-box; }

    html {
      scroll-behavior: smooth;
      color-scheme: dark;
    }

    body {
      margin: 0;
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
        "Segoe UI", sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 15% 5%, rgba(124,92,255,.16), transparent 32rem),
        radial-gradient(circle at 90% 25%, rgba(25,211,174,.09), transparent 28rem),
        var(--bg);
      line-height: 1.65;
    }

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

    .container {
      width: min(var(--container), calc(100% - 40px));
      margin-inline: auto;
    }

    .skip-link {
      position: fixed;
      left: 16px;
      top: -100px;
      z-index: 999;
      padding: 10px 14px;
      border-radius: 10px;
      background: var(--text);
      color: var(--bg);
    }

    .skip-link:focus { top: 16px; }

    /* Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      border-bottom: 1px solid var(--line);
      background: rgba(9,11,18,.78);
      backdrop-filter: blur(18px);
    }

    .nav {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand img {
      display: block;
      width: 150px;
      height: auto;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .nav-links a {
      padding: 9px 13px;
      color: var(--muted);
      font-size: .92rem;
      border-radius: 10px;
      transition: .2s ease;
    }

    .nav-links a:hover,
    .nav-links a:focus-visible {
      color: var(--text);
      background: rgba(255,255,255,.06);
    }

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

    .menu-toggle {
      display: none;
      border: 1px solid var(--line);
      background: var(--surface);
      color: var(--text);
      border-radius: 12px;
      padding: 9px 11px;
      cursor: pointer;
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 0 18px;
      border: 1px solid transparent;
      border-radius: 12px;
      font-weight: 750;
      font-size: .94rem;
      cursor: pointer;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }

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

    .btn-primary {
      color: white;
      background: linear-gradient(135deg, var(--accent), #9b78ff);
      box-shadow: 0 12px 30px rgba(124,92,255,.25);
    }

    .btn-secondary {
      border-color: var(--line);
      background: rgba(255,255,255,.04);
      color: var(--text);
    }

    .btn-small { min-height: 40px; padding-inline: 14px; }

    /* Product detail */
    .product-page {
      padding: 36px 0 72px;
    }

    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      align-items: center;
      margin-bottom: 22px;
      color: var(--muted);
      font-size: .82rem;
    }

    .breadcrumb a:hover { color: var(--text); }

    .product-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(390px, .92fr);
      gap: 42px;
      align-items: start;
    }

    .product-gallery {
      position: sticky;
      top: 100px;
      min-width: 0;
    }

    .gallery-main {
      position: relative;
      display: grid;
      place-items: center;
      min-height: 650px;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: 28px;
      background:
        radial-gradient(circle at 50% 42%, rgba(124,92,255,.20), transparent 46%),
        linear-gradient(145deg, rgba(255,255,255,.065), rgba(255,255,255,.018));
      box-shadow: var(--shadow);
    }

    .gallery-main::before {
      content: "";
      position: absolute;
      width: 62%;
      height: 18%;
      bottom: 8%;
      border-radius: 50%;
      background: rgba(0,0,0,.52);
      filter: blur(30px);
    }

    .gallery-main img {
      position: relative;
      z-index: 1;
      display: block;
      width: min(92%, 680px);
      height: 620px;
      object-fit: contain;
      filter: drop-shadow(0 35px 35px rgba(0,0,0,.48));
      transition: transform .35s ease;
    }

    .gallery-main:hover img { transform: scale(1.035); }

    .gallery-badge {
      position: absolute;
      z-index: 2;
      top: 20px;
      left: 20px;
      padding: 8px 12px;
      border-radius: 999px;
      background: #e64a72;
      color: #fff;
      font-size: .78rem;
      font-weight: 850;
      box-shadow: 0 10px 25px rgba(230,74,114,.25);
    }

    .gallery-actions {
      position: absolute;
      z-index: 2;
      right: 18px;
      bottom: 18px;
      display: flex;
      gap: 8px;
    }

    .gallery-icon {
      display: grid;
      place-items: center;
      width: 42px;
      height: 42px;
      border: 1px solid var(--line);
      border-radius: 50%;
      background: rgba(9,11,18,.76);
      color: var(--text);
      cursor: pointer;
      backdrop-filter: blur(12px);
    }

    .gallery-thumbs {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 10px;
      margin-top: 12px;
    }

    .gallery-thumb {
      display: grid;
      place-items: center;
      min-height: 92px;
      padding: 8px;
      border: 1px solid var(--line);
      border-radius: 15px;
      background: rgba(255,255,255,.035);
      cursor: pointer;
      overflow: hidden;
    }

    .gallery-thumb.is-active {
      border-color: var(--accent);
      box-shadow: 0 0 0 2px rgba(124,92,255,.16);
    }

    .gallery-thumb img {
      width: 100%;
      height: 76px;
      object-fit: contain;
    }

    .product-info {
      min-width: 0;
    }

    .product-brand {
      margin-bottom: 8px;
      color: #b9a9ff;
      font-size: .82rem;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: .09em;
    }

    .product-title {
      margin: 0 0 12px;
      font-size: clamp(2rem, 4vw, 3rem);
      line-height: 1.08;
      letter-spacing: -.045em;
    }

    .product-rating {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px;
      padding-bottom: 18px;
      border-bottom: 1px solid var(--line);
      color: var(--muted);
      font-size: .88rem;
    }

    .rating-stars { color: #ffd166; letter-spacing: .08em; }

    .product-price {
      display: flex;
      align-items: baseline;
      flex-wrap: wrap;
      gap: 10px;
      margin: 22px 0 5px;
    }

    .price-current {
      color: #fff;
      font-size: clamp(2rem, 4vw, 2.8rem);
      font-weight: 900;
      letter-spacing: -.04em;
    }

    .price-old {
      color: #7f8799;
      text-decoration: line-through;
      font-size: .95rem;
    }

    .price-discount {
      padding: 4px 8px;
      border-radius: 6px;
      background: rgba(230,74,114,.12);
      color: #ff7d9a;
      font-size: .75rem;
      font-weight: 800;
    }

    .product-note {
      margin: 0 0 20px;
      color: var(--muted);
      font-size: .86rem;
    }

    .deal-card {
      margin: 18px 0;
      padding: 18px;
      border: 1px solid rgba(25,211,174,.2);
      border-radius: 17px;
      background: rgba(25,211,174,.055);
    }

    .deal-card strong {
      display: block;
      margin-bottom: 4px;
      color: #72f2d8;
      font-size: .9rem;
    }

    .deal-card span {
      color: var(--muted);
      font-size: .82rem;
    }

    .option {
      padding: 18px 0;
      border-top: 1px solid var(--line);
    }

    .option-label {
      display: flex;
      justify-content: space-between;
      gap: 15px;
      margin-bottom: 11px;
      font-size: .88rem;
      font-weight: 800;
    }

    .option-label span:last-child {
      color: var(--muted);
      font-weight: 500;
    }

    .option-list {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
    }

    .option-btn {
      min-width: 92px;
      min-height: 43px;
      padding: 0 15px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: rgba(255,255,255,.035);
      color: var(--text);
      cursor: pointer;
    }

    .option-btn.is-selected {
      border-color: var(--accent);
      background: rgba(124,92,255,.11);
      box-shadow: 0 0 0 2px rgba(124,92,255,.13);
    }

    .seller-card {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 16px;
      margin: 4px 0 18px;
      padding: 17px;
      border: 1px solid var(--line);
      border-radius: 16px;
      background: rgba(255,255,255,.025);
    }

    .seller-name {
      margin-bottom: 3px;
      font-weight: 800;
    }

    .seller-meta {
      color: var(--muted);
      font-size: .78rem;
    }

    .seller-badge {
      align-self: center;
      padding: 6px 9px;
      border-radius: 7px;
      background: rgba(25,211,174,.1);
      color: #72f2d8;
      font-size: .72rem;
      font-weight: 800;
    }

    .shipping {
      display: grid;
      gap: 10px;
      margin-bottom: 20px;
      padding: 16px;
      border: 1px solid var(--line);
      border-radius: 16px;
      background: rgba(255,255,255,.025);
    }

    .shipping-row {
      display: flex;
      gap: 11px;
      align-items: flex-start;
      color: #d9dfeb;
      font-size: .83rem;
    }

    .shipping-row strong {
      display: block;
      margin-bottom: 2px;
      font-size: .82rem;
    }

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

    .product-actions {
      display: grid;
      grid-template-columns: .75fr 1.25fr;
      gap: 10px;
    }

    .btn-large {
      min-height: 54px;
      border-radius: 12px;
      font-size: .98rem;
    }

    .buy-now {
      background: linear-gradient(135deg, #8a6cff, #6c4cf5);
    }

    .product-trust {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 9px;
      margin-top: 12px;
    }

    .product-trust-item {
      padding: 13px 10px;
      border: 1px solid var(--line);
      border-radius: 12px;
      background: rgba(255,255,255,.025);
      text-align: center;
      color: var(--muted);
      font-size: .72rem;
    }

    .product-trust-item strong {
      display: block;
      margin-bottom: 3px;
      color: var(--text);
      font-size: .76rem;
    }

    /* Sections */
    section { scroll-margin-top: 100px; }

    .section {
      padding: 84px 0;
    }

    .section-head {
      max-width: 720px;
      margin-bottom: 34px;
    }

    .section-head h2 {
      margin-bottom: 10px;
      font-size: clamp(2rem, 4vw, 3.2rem);
      line-height: 1.08;
      letter-spacing: -.04em;
    }

    .section-head p { color: var(--muted); }

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

    .feature {
      padding: 24px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(255,255,255,.035);
      transition: transform .2s ease, border-color .2s ease;
    }

    .feature:hover {
      transform: translateY(-4px);
      border-color: rgba(124,92,255,.35);
    }

    .feature-icon {
      display: grid;
      place-items: center;
      width: 44px;
      height: 44px;
      margin-bottom: 18px;
      border-radius: 13px;
      background: rgba(124,92,255,.12);
      color: #c7b9ff;
      font-size: 1.2rem;
    }

    .feature h3 { margin-bottom: 7px; font-size: 1rem; }
    .feature p { margin: 0; color: var(--muted); font-size: .9rem; }

    .about {
      display: grid;
      grid-template-columns: .8fr 1.2fr;
      gap: 48px;
      align-items: start;
    }

    .about-panel {
      padding: 30px;
      border: 1px solid var(--line);
      border-radius: 26px;
      background: var(--surface);
    }

    .about-panel h3 { font-size: 1.4rem; }
    .about-panel p { color: var(--muted); }

    .checks {
      display: grid;
      gap: 12px;
      margin-top: 22px;
    }

    .check {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      color: #dce1ec;
    }

    .check::before {
      content: "✓";
      flex: 0 0 24px;
      display: grid;
      place-items: center;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: rgba(25,211,174,.12);
      color: #6eead4;
      font-weight: 900;
    }

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

    .review {
      padding: 24px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(255,255,255,.035);
    }

    .stars {
      color: #ffd166;
      letter-spacing: .1em;
      margin-bottom: 12px;
    }

    .review blockquote {
      margin: 0 0 18px;
      color: #dfe4ef;
      font-size: .94rem;
    }

    .review footer {
      color: var(--muted);
      font-size: .82rem;
    }

    .faq {
      max-width: 820px;
    }

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

    .faq-question {
      width: 100%;
      display: flex;
      justify-content: space-between;
      gap: 20px;
      padding: 21px 0;
      border: 0;
      background: transparent;
      color: var(--text);
      text-align: left;
      font-weight: 750;
      cursor: pointer;
    }

    .faq-question span:last-child {
      color: var(--muted);
      transition: transform .2s ease;
    }

    .faq-answer {
      display: grid;
      grid-template-rows: 0fr;
      transition: grid-template-rows .25s ease;
    }

    .faq-answer > div { overflow: hidden; }

    .faq-answer p {
      margin: 0 0 20px;
      color: var(--muted);
    }

    .faq-item.is-open .faq-answer { grid-template-rows: 1fr; }
    .faq-item.is-open .faq-question span:last-child { transform: rotate(45deg); }

    .cta {
      padding: 56px;
      border: 1px solid rgba(124,92,255,.25);
      border-radius: 30px;
      background:
        radial-gradient(circle at 80% 0, rgba(25,211,174,.12), transparent 24rem),
        linear-gradient(135deg, rgba(124,92,255,.14), rgba(255,255,255,.035));
      text-align: center;
    }

    .cta h2 {
      margin-bottom: 10px;
      font-size: clamp(2rem, 4vw, 3rem);
      letter-spacing: -.04em;
    }

    .cta p {
      max-width: 650px;
      margin: 0 auto 24px;
      color: var(--muted);
    }

    /* Footer */
    .site-footer {
      padding: 56px 0 28px;
      border-top: 1px solid var(--line);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr repeat(3, 1fr);
      gap: 36px;
      padding-bottom: 40px;
    }

    .footer-brand p {
      max-width: 330px;
      color: var(--muted);
      font-size: .9rem;
    }

    .footer-brand img { width: 140px; margin-bottom: 16px; }

    .footer-col h3 {
      margin-bottom: 12px;
      font-size: .88rem;
      text-transform: uppercase;
      letter-spacing: .08em;
    }

    .footer-col a {
      display: block;
      width: fit-content;
      margin: 8px 0;
      color: var(--muted);
      font-size: .88rem;
    }

    .footer-col a:hover { color: var(--text); }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      padding-top: 22px;
      border-top: 1px solid var(--line);
      color: var(--muted);
      font-size: .78rem;
    }

    @media (max-width: 980px) {
      .product-layout {
        grid-template-columns: 1fr;
      }

      .product-gallery {
        position: static;
      }

      .gallery-main {
        min-height: 540px;
      }

      .gallery-main img {
        height: 510px;
      }
    }

    /* Responsive */
    @media (max-width: 980px) {
      .hero-grid,
      .about { grid-template-columns: 1fr; }

      .hero { padding-top: 78px; }

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

      .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; }
      .footer-grid > :first-child { grid-column: 1 / -1; }
    }

    @media (max-width: 760px) {
      .product-page {
        padding-top: 20px;
      }

      .product-layout {
        gap: 25px;
      }

      .gallery-main {
        min-height: 410px;
        border-radius: 22px;
      }

      .gallery-main img {
        width: 100%;
        height: 390px;
      }

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

      .gallery-thumb {
        min-height: 70px;
      }

      .gallery-thumb img {
        height: 58px;
      }

      .product-actions {
        grid-template-columns: 1fr;
      }

      .product-trust {
        grid-template-columns: repeat(3, 1fr);
      }

      .container { width: min(var(--container), calc(100% - 28px)); }

      .nav { min-height: 68px; }
      .brand img { width: 125px; }

      .menu-toggle { display: block; }

      .nav-links {
        position: absolute;
        left: 14px;
        right: 14px;
        top: calc(100% + 8px);
        display: none;
        padding: 10px;
        flex-direction: column;
        align-items: stretch;
        border: 1px solid var(--line);
        border-radius: 16px;
        background: rgba(17,21,34,.97);
        box-shadow: var(--shadow);
      }

      .nav-links.is-open { display: flex; }
      .nav-links a { padding: 12px; }
      .nav-actions .btn-secondary { display: none; }

      .hero { padding: 62px 0 58px; }
      .hero-grid { gap: 36px; }
      h1 { font-size: clamp(2.5rem, 14vw, 4rem); }

      .section { padding: 64px 0; }
      .features { grid-template-columns: 1fr; }

      .cta { padding: 38px 22px; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 26px; }
      .footer-grid > :first-child { grid-column: 1 / -1; }

      .footer-bottom { flex-direction: column; }
    }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
      }
    }