/* ── Reset & Tokens ── */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    :root {
      --bg:       #f1f4ff;
      --white:    #ffffff;
      --black:    #1a1a1a;
      --grey:     #6b6b6b;
      --light:    #e8ecfc;
      --border:   #d0d8f0;
      --accent:   #3b5bdb;
      --accent2:  #e03131;
      --radius:   12px;
      --shadow:   0 2px 16px rgba(60,70,120,.10);
      --font:     'Inter', 'Helvetica Neue', Arial, sans-serif;
    }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font);
      background: var(--bg);
      color: var(--black);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; }
    img { display: block; max-width: 100%; }

    /* ── Header ── */
    .site-header {
      background: var(--white);
      border-bottom: 1px solid var(--border);
      position: sticky; top: 0; z-index: 100;
      padding: 0 24px;
      height: 60px;
      display: flex; align-items: center; justify-content: space-between;
    }
    .site-header .logo {
      font-size: 17px; font-weight: 800; letter-spacing: .5px;
      text-transform: uppercase; color: var(--black);
    }
    .site-header nav { display: flex; gap: 24px; }
    .site-header nav a {
      font-size: 13px; font-weight: 500; color: var(--grey);
      transition: color .2s;
    }
    .site-header nav a:hover { color: var(--accent); }
    .header-cta {
      background: var(--black); color: var(--white);
      padding: 8px 18px; border-radius: 6px;
      font-size: 13px; font-weight: 600;
      transition: background .2s;
    }
    .header-cta:hover { background: var(--accent); color: var(--white); }

    /* ── Breadcrumb ── */
    .breadcrumb {
      padding: 12px 24px; font-size: 12px; color: var(--grey);
      max-width: 1280px; margin: 0 auto;
    }
    .breadcrumb a { color: var(--grey); }
    .breadcrumb span { margin: 0 6px; }

    /* ── Main product layout ── */
    .product-layout {
      max-width: 1280px; margin: 0 auto;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      padding: 0 24px 48px;
    }

    /* ── Gallery ── */
    .gallery { position: relative; }
    .gallery-main {
      width: 100%; aspect-ratio: 1/1;
      border-radius: var(--radius);
      overflow: hidden;
      background: var(--white);
      box-shadow: var(--shadow);
      cursor: zoom-in;
    }
    .gallery-main img {
      width: 100%; height: 100%;
      object-fit: cover;
      transition: opacity .3s;
    }
    .gallery-thumbs {
      display: grid;
      grid-template-columns: repeat(8, 1fr);
      gap: 6px;
      margin-top: 10px;
    }
    .gallery-thumbs img {
      width: 100%; aspect-ratio: 1/1;
      object-fit: cover;
      border-radius: 6px;
      border: 2px solid transparent;
      cursor: pointer;
      transition: border-color .2s, opacity .2s;
      background: var(--white);
    }
    .gallery-thumbs img.active { border-color: var(--black); }
    .gallery-thumbs img:hover { opacity: .85; }

    /* Lightbox */
    .lightbox {
      display: none; position: fixed; inset: 0;
      background: rgba(0,0,0,.88); z-index: 1000;
      align-items: center; justify-content: center;
    }
    .lightbox.open { display: flex; }
    .lightbox img {
      max-width: 92vw; max-height: 92vh;
      border-radius: 8px; object-fit: contain;
    }
    .lightbox-close {
      position: absolute; top: 20px; right: 24px;
      color: #fff; font-size: 32px; cursor: pointer;
      line-height: 1; background: none; border: none;
    }
    .lightbox-prev, .lightbox-next {
      position: absolute; top: 50%; transform: translateY(-50%);
      color: #fff; font-size: 40px; cursor: pointer;
      background: rgba(255,255,255,.12); border: none;
      width: 52px; height: 52px; border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
    }
    .lightbox-prev { left: 16px; }
    .lightbox-next { right: 16px; }

    /* ── Product Info ── */
    .product-info { padding-top: 8px; }
    .product-badge {
      display: inline-block;
      background: var(--light); color: var(--accent);
      font-size: 11px; font-weight: 700; letter-spacing: .8px;
      text-transform: uppercase; padding: 4px 10px;
      border-radius: 4px; margin-bottom: 14px;
    }
    .product-title {
      font-size: clamp(26px, 3vw, 38px);
      font-weight: 800; line-height: 1.15;
      margin-bottom: 12px;
    }
    .product-subtitle {
      font-size: 15px; color: var(--grey);
      margin-bottom: 20px; line-height: 1.5;
    }
    /* Pills */
    .pill-row {
      display: flex; flex-wrap: wrap; gap: 8px;
      margin-bottom: 24px;
    }
    .pill {
      background: var(--white); border: 1.5px solid var(--border);
      border-radius: 20px; padding: 6px 14px;
      font-size: 12px; font-weight: 600; color: var(--black);
    }
    /* Specs table */
    .specs-table { width: 100%; border-collapse: collapse; margin-bottom: 24px; }
    .specs-table tr { border-bottom: 1px solid var(--border); }
    .specs-table tr:last-child { border-bottom: none; }
    .specs-table td {
      padding: 10px 8px; font-size: 13.5px;
    }
    .specs-table td:first-child {
      color: var(--grey); font-weight: 600; width: 42%;
    }
    /* CTA block */
    .cta-block { margin-top: 8px; }
    .cta-block .btn-primary {
      display: block; width: 100%;
      background: var(--black); color: var(--white);
      text-align: center; padding: 16px;
      border-radius: 8px; font-size: 16px; font-weight: 700;
      border: none; cursor: pointer; transition: background .2s;
      margin-bottom: 10px;
    }
    .cta-block .btn-primary:hover { background: var(--accent); }
    .cta-block .btn-secondary {
      display: block; width: 100%;
      background: transparent; color: var(--black);
      text-align: center; padding: 14px;
      border-radius: 8px; font-size: 15px; font-weight: 600;
      border: 2px solid var(--black); cursor: pointer; transition: all .2s;
    }
    .cta-block .btn-secondary:hover {
      background: var(--black); color: var(--white);
    }
    .trust-row {
      display: flex; gap: 16px; margin-top: 16px;
      flex-wrap: wrap;
    }
    .trust-item {
      display: flex; align-items: center; gap: 6px;
      font-size: 12px; color: var(--grey); font-weight: 500;
    }
    .trust-item svg { flex-shrink: 0; }

    /* ── Full-width banner images ── */
    .banner-section { width: 100%; overflow: hidden; }
    .banner-img {
      width: 100%;
      display: block;
      object-fit: cover;
    }

    /* ── Features strip ── */
    .features-strip {
      background: var(--white);
      padding: 56px 24px;
    }
    .features-strip-inner {
      max-width: 1100px; margin: 0 auto;
    }
    .section-label {
      text-align: center;
      font-size: 11px; font-weight: 700; letter-spacing: 1.5px;
      text-transform: uppercase; color: var(--accent);
      margin-bottom: 10px;
    }
    .section-title {
      text-align: center;
      font-size: clamp(22px, 3vw, 32px);
      font-weight: 800; margin-bottom: 8px;
    }
    .section-sub {
      text-align: center;
      font-size: 15px; color: var(--grey); margin-bottom: 40px;
    }
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feature-card {
      background: var(--bg);
      border-radius: var(--radius);
      padding: 28px 24px;
      border: 1px solid var(--border);
    }
    .feature-icon { font-size: 28px; margin-bottom: 12px; }
    .feature-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
    .feature-card p { font-size: 13.5px; color: var(--grey); line-height: 1.55; }

    /* ── Gallery strip (all 16 widescreen images) ── */
    .gallery-strip {
      padding: 56px 24px;
      max-width: 1280px; margin: 0 auto;
    }
    .wide-gallery {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .wide-gallery img {
      width: 100%; border-radius: var(--radius);
      aspect-ratio: 16/9; object-fit: cover;
      box-shadow: var(--shadow);
      transition: transform .3s;
      cursor: pointer;
    }
    .wide-gallery img:hover { transform: scale(1.01); }
    .wide-gallery img.span2 {
      grid-column: span 2;
      aspect-ratio: 16/5;
    }

    /* ── Customization section ── */
    .custom-section {
      background: var(--black);
      color: var(--white);
      padding: 64px 24px;
      text-align: center;
    }
    .custom-section .section-title { color: var(--white); }
    .custom-section .section-sub { color: rgba(255,255,255,.65); margin-bottom: 32px; }
    .custom-form {
      max-width: 560px; margin: 0 auto;
      display: flex; flex-direction: column; gap: 12px;
    }
    .custom-form input, .custom-form select, .custom-form textarea {
      width: 100%; padding: 14px 16px;
      border: 1.5px solid rgba(255,255,255,.2);
      border-radius: 8px; background: rgba(255,255,255,.08);
      color: var(--white); font-size: 14px; font-family: var(--font);
      outline: none; transition: border-color .2s;
    }
    .custom-form input::placeholder,
    .custom-form textarea::placeholder { color: rgba(255,255,255,.4); }
    .custom-form input:focus, .custom-form select:focus,
    .custom-form textarea:focus { border-color: rgba(255,255,255,.6); }
    .custom-form select { appearance: none; }
    .custom-form select option { background: #222; color: #fff; }
    .custom-form textarea { resize: vertical; min-height: 90px; }
    .custom-form .submit-btn {
      background: var(--white); color: var(--black);
      font-size: 15px; font-weight: 700;
      border: none; border-radius: 8px;
      padding: 16px; cursor: pointer; transition: background .2s;
    }
    .custom-form .submit-btn:hover { background: var(--bg); }

    /* ── FAQ ── */
    .faq-section {
      max-width: 860px; margin: 0 auto;
      padding: 64px 24px;
    }
    .faq-item {
      border-bottom: 1px solid var(--border);
      overflow: hidden;
    }
    .faq-q {
      width: 100%; background: none; border: none;
      display: flex; align-items: center; justify-content: space-between;
      padding: 20px 0; cursor: pointer;
      font-size: 15px; font-weight: 700; text-align: left;
      color: var(--black); font-family: var(--font);
      gap: 12px;
    }
    .faq-q .icon {
      flex-shrink: 0; width: 24px; height: 24px;
      border-radius: 50%; background: var(--light);
      display: flex; align-items: center; justify-content: center;
      font-size: 16px; transition: transform .3s;
    }
    .faq-item.open .faq-q .icon { transform: rotate(45deg); }
    .faq-a {
      max-height: 0; overflow: hidden;
      font-size: 14px; color: var(--grey); line-height: 1.7;
      transition: max-height .35s ease, padding .35s;
    }
    .faq-item.open .faq-a { max-height: 300px; padding-bottom: 20px; }

    /* ── Description ── */
    .desc-section {
      max-width: 860px; margin: 0 auto;
      padding: 48px 24px;
      border-top: 1px solid var(--border);
    }
    .desc-section h2 {
      font-size: 22px; font-weight: 800; margin-bottom: 20px;
    }
    .desc-section h3 {
      font-size: 16px; font-weight: 700; margin: 24px 0 8px;
    }
    .desc-section p {
      font-size: 14px; color: var(--grey); margin-bottom: 12px; line-height: 1.7;
    }
    .desc-section ul {
      list-style: disc; padding-left: 20px;
      font-size: 14px; color: var(--grey); line-height: 1.9;
    }

    /* ── Footer ── */
    .site-footer {
      background: var(--black); color: rgba(255,255,255,.55);
      text-align: center; padding: 32px 24px;
      font-size: 12px; line-height: 1.8;
    }
    .site-footer a { color: rgba(255,255,255,.55); }
    .site-footer a:hover { color: #fff; }

    /* ── Mobile nav toggle ── */
    .nav-toggle { display: none; }

    /* ── Responsive ── */
    @media (max-width: 960px) {
      .product-layout { grid-template-columns: 1fr; gap: 24px; }
      .gallery-thumbs { grid-template-columns: repeat(8, 1fr); }
      .features-grid { grid-template-columns: 1fr 1fr; }
      .wide-gallery { grid-template-columns: 1fr; }
      .wide-gallery img.span2 { grid-column: span 1; aspect-ratio: 16/9; }
    }
    @media (max-width: 640px) {
      .site-header nav { display: none; }
      .nav-toggle {
        display: flex; align-items: center;
        background: none; border: none; cursor: pointer;
        font-size: 22px; color: var(--black);
      }
      .features-grid { grid-template-columns: 1fr; }
      .gallery-thumbs { grid-template-columns: repeat(4, 1fr); }
      .product-layout { padding: 0 16px 32px; }
      .gallery-strip { padding: 32px 16px; }
      .faq-section { padding: 40px 16px; }
      .desc-section { padding: 32px 16px; }
      .features-strip { padding: 40px 16px; }
    }