:root {
      --primary: #0077ff;
      --primary-soft: #e6f1ff;
      --accent: #ff6b6b;
      --dark: #0f172a;
      --text: #1f2933;
      --muted: #6b7280;
      --bg: #f5f7fb;
      --radius-lg: 24px;
      --radius-md: 16px;
      --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.12);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.6;
    }

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

    a {
      color: var(--primary);
      text-decoration: none;
    }

    a:hover {
      text-decoration: underline;
    }

    .page {
      max-width: 1200px;
      margin: 0 auto;
      padding: 16px;
    }

    /* HERO SECTION */
    .hero {
      background: radial-gradient(circle at top left, #dbeafe 0, #eff6ff 40%, #ffffff 85%);
      border-radius: var(--radius-lg);
      padding: 24px 20px 28px;
      margin-bottom: 24px;
      box-shadow: var(--shadow-soft);
      display: grid;
      grid-template-columns: minmax(0, 3fr) minmax(0, 2.5fr);
      gap: 24px;
      align-items: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 10px;
      border-radius: 999px;
      background: rgba(37, 99, 235, 0.08);
      color: var(--primary);
      font-size: 12px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      margin-bottom: 10px;
    }

    .hero-title {
      font-size: clamp(1.9rem, 2.6vw, 2.4rem);
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 10px;
    }

    .hero-subtitle {
      font-size: 0.98rem;
      color: var(--muted);
      margin-bottom: 18px;
    }

    .hero-highlights {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 18px;
    }

    .hero-chip {
      padding: 6px 10px;
      border-radius: 999px;
      background: #ffffff;
      font-size: 12px;
      border: 1px solid #e5e7eb;
    }

    .hero-cta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      align-items: center;
    }

    .btn-primary {
      padding: 9px 18px;
      border-radius: 999px;
      border: none;
      outline: none;
      background: linear-gradient(120deg, var(--primary), #00a2ff);
      color: #ffffff;
      font-weight: 600;
      cursor: pointer;
      font-size: 0.95rem;
      box-shadow: 0 10px 25px rgba(37, 99, 235, 0.35);
      transition: transform 0.15s ease, box-shadow 0.15s ease;
      white-space: nowrap;
    }

    .btn-primary:hover {
      transform: translateY(-1px);
      box-shadow: 0 16px 35px rgba(37, 99, 235, 0.45);
    }

    .btn-ghost {
      padding: 8px 14px;
      border-radius: 999px;
      border: 1px dashed #cbd5e1;
      font-size: 0.9rem;
      color: var(--muted);
      background: rgba(255, 255, 255, 0.7);
      backdrop-filter: blur(6px);
    }

    .trust-text {
      font-size: 0.78rem;
      color: var(--muted);
      margin-top: 3px;
    }

    .hero-media {
      position: relative;
      padding: 10px;
    }

    .device-card {
      background: #ffffff;
      border-radius: 30px;
      padding: 16px;
      box-shadow: var(--shadow-soft);
      position: relative;
      overflow: hidden;
    }

    .device-tag {
      position: absolute;
      top: 14px;
      left: 16px;
      padding: 4px 10px;
      font-size: 11px;
      font-weight: 600;
      border-radius: 999px;
      background: rgba(15, 23, 42, 0.85);
      color: #e5e7eb;
    }

    .device-shadow {
      position: absolute;
      inset: auto 14px 10px 14px;
      height: 12px;
      border-radius: 999px;
      background: radial-gradient(circle at 50% 0, rgba(15, 23, 42, 0.24), transparent 70%);
      opacity: 0.7;
    }

    .device-features {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      margin-top: 12px;
      font-size: 0.7rem;
    }

    .device-feature-item span:first-child {
      font-weight: 700;
      font-size: 0.86rem;
      display: block;
    }

    /* CONTENT SECTIONS */
    .section {
      margin-bottom: 28px;
    }

    .section-header {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--dark);
    }

    .section-kicker {
      font-size: 0.8rem;
      text-transform: uppercase;
      letter-spacing: 0.12em;
      color: var(--primary);
      font-weight: 700;
    }

    .section-description {
      font-size: 0.9rem;
      color: var(--muted);
      max-width: 640px;
    }

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
    }

    .card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 16px 16px 18px;
      box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
    }

    .card h3 {
      font-size: 1rem;
      margin-bottom: 8px;
      color: var(--dark);
    }

    .card p {
      font-size: 0.88rem;
      color: var(--muted);
    }

    .pill-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 8px;
    }

    .pill {
      font-size: 0.8rem;
      padding: 4px 8px;
      border-radius: 999px;
      border: 1px solid #e5e7eb;
      background: #f9fafb;
    }

    /* HANDLE SPOT SIZE IMAGE MOCKUP */
    .handle-diagram {
      position: relative;
      background: radial-gradient(circle at top left, #e0f2fe 0, #eff6ff 40%, #ffffff 100%);
      border-radius: var(--radius-md);
      padding: 14px;
      overflow: hidden;
    }

    .handle-diagram-inner {
      display: grid;
      grid-template-columns: minmax(0, 1.5fr) minmax(0, 1.5fr);
      gap: 12px;
      align-items: center;
    }

    .handle-device-img {
      position: relative;
      border-radius: 20px;
      background: #ffffff;
      padding: 10px;
      box-shadow: 0 16px 36px rgba(15, 23, 42, 0.16);
    }

    .handle-badge {
      position: absolute;
      top: 10px;
      right: 12px;
      padding: 4px 8px;
      border-radius: 999px;
      font-size: 0.7rem;
      background: rgba(15, 23, 42, 0.85);
      color: #e5e7eb;
    }

    .spot-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 6px;
      font-size: 0.73rem;
    }

    .spot-item {
      background: rgba(255, 255, 255, 0.95);
      border-radius: 12px;
      padding: 6px;
      border: 1px dashed #bfdbfe;
      position: relative;
    }

    .spot-label {
      font-weight: 700;
      font-size: 0.8rem;
    }

    .spot-dim {
      font-size: 0.78rem;
      color: var(--muted);
    }

    .spot-diagram-rect {
      margin-top: 4px;
      border-radius: 6px;
      border: 1px solid #93c5fd;
      height: 22px;
      position: relative;
      overflow: hidden;
    }

    .spot-diagonal {
      position: absolute;
      inset: 0;
      background-image: linear-gradient(135deg, rgba(59, 130, 246, 0.2) 25%, transparent 25%, transparent 50%, rgba(59, 130, 246, 0.2) 50%, rgba(59, 130, 246, 0.2) 75%, transparent 75%, transparent);
      background-size: 8px 8px;
      opacity: 0.7;
    }

    /* WAVELENGTH STRIPS */
    .wave-strips {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 10px;
      margin-top: 8px;
    }

    .wave-strip {
      border-radius: 999px;
      padding: 7px 10px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.8rem;
      background: linear-gradient(90deg, #bfdbfe, #eff6ff);
    }

    .wave-strip strong {
      font-size: 0.86rem;
      color: #1f2937;
    }

    /* SPECS TABLE */
    .specs-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.86rem;
    }

    .specs-table tr:nth-child(odd) {
      background: #f9fafb;
    }

    .specs-table td {
      padding: 7px 8px;
      vertical-align: top;
    }

    .specs-table td:first-child {
      font-weight: 600;
      width: 40%;
      color: var(--muted);
    }

    /* BEFORE/AFTER */
    .ba-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 8px;
      font-size: 0.8rem;
    }

    .ba-item {
      background: #ffffff;
      border-radius: 14px;
      padding: 6px;
      text-align: center;
      box-shadow: 0 6px 16px rgba(15, 23, 42, 0.06);
    }

    .ba-label {
      display: inline-flex;
      justify-content: center;
      gap: 4px;
      font-size: 0.72rem;
      margin-top: 2px;
    }

    .ba-label span {
      padding: 2px 6px;
      border-radius: 999px;
    }

    .ba-before {
      background: #fee2e2;
      color: #b91c1c;
    }

    .ba-after {
      background: #dcfce7;
      color: #166534;
    }

    /* FAQ */
    .faq-list {
      display: grid;
      gap: 10px;
      font-size: 0.88rem;
    }

    .faq-item {
      background: #ffffff;
      border-radius: 14px;
      padding: 10px 12px;
      border: 1px solid #e5e7eb;
    }

    .faq-q {
      font-weight: 600;
      margin-bottom: 4px;
    }

    .faq-a {
      color: var(--muted);
    }

    /* STICKY CTA MOBILE */
    .sticky-cta {
      position: sticky;
      bottom: 0;
      z-index: 30;
      background: rgba(248, 250, 252, 0.9);
      backdrop-filter: blur(10px);
      padding: 8px 10px;
      border-radius: 14px 14px 0 0;
      display: none;
      justify-content: space-between;
      align-items: center;
      gap: 10px;
      margin-top: 10px;
    }

    .sticky-cta-text {
      font-size: 0.82rem;
      color: var(--dark);
      font-weight: 600;
    }

    /* RESPONSIVE */
    @media (max-width: 900px) {
      .hero {
        grid-template-columns: minmax(0, 1fr);
        padding: 18px 16px 20px;
      }
      .hero-media {
        order: -1;
      }
      .grid-2 {
        grid-template-columns: minmax(0, 1fr);
      }
      .wave-strips {
        grid-template-columns: minmax(0, 1fr);
      }
      .ba-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 640px) {
      .page {
        padding: 12px 10px 60px;
      }
      .hero-title {
        font-size: 1.6rem;
      }
      .device-card {
        border-radius: 24px;
      }
      .spot-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
      .sticky-cta {
        display: flex;
      }
    }