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

  :root {
    --blue:    #1a56db;
    --blue-lt: #eff6ff;
    --green:   #16a34a;
    --att:     #00a8e0;
    --tmob:    #e20074;
    --vzw:     #cd040b;
    --g50:  #f9fafb;
    --g100: #f3f4f6;
    --g200: #e5e7eb;
    --g300: #d1d5db;
    --g400: #9ca3af;
    --g500: #6b7280;
    --g700: #374151;
    --g800: #1f2937;
    --dark:  #0d1117; /* unused */
    --dark2: #161b22;
    --dark3: #21262d;
    --r: 10px;
    --font: 'Inter', system-ui, sans-serif;
  }

  body { font-family: var(--font); background: #fff; color: var(--g800); line-height: 1.6; overflow-x: hidden; }
  a { text-decoration: none; color: inherit; }
  img { display: block; max-width: 100%; }
  .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

  /* ─── BANNER ─── */
  .top-banner {
    background: linear-gradient(90deg,#1d4ed8,#7c3aed,#1d4ed8);
    background-size: 200%; animation: bm 6s linear infinite;
    text-align: center; font-size: 0.82rem; font-weight: 600;
    padding: 9px 16px; color: #fff; letter-spacing: .02em;
  }
  .top-banner .hl { color: #fde68a; }
  @keyframes bm { 0%{background-position:0%} 100%{background-position:200%} }

  /* ─── NAV — white ─── */
  nav.site-nav {
    position: sticky; top: 0; z-index: 200;
    background: #fff; border-bottom: 1px solid var(--g200);
    box-shadow: 0 1px 3px rgba(0,0,0,.06);
  }
  .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 62px; gap: 20px; }
  .nav-logo { font-size: 1.35rem; font-weight: 800; color: var(--g800); letter-spacing: -.03em; text-decoration: none; }
  .nav-logo span { color: var(--blue); }
  .nav-links { display: flex; gap: 2px; list-style: none; }
  .nav-links a { font-size: .875rem; font-weight: 500; color: var(--g500); padding: 6px 12px; border-radius: 6px; transition: .15s; text-decoration: none;}
  .nav-links a:hover { color: var(--g800); background: var(--g100); }
  .nav-actions { display: flex; align-items: center; gap: 8px; }
  .btn-nav-ghost { font-size: .85rem; font-weight: 500; color: var(--g500); padding: 7px 14px; border: 1px solid var(--g200); border-radius: 7px; transition: .15s; }
  .btn-nav-ghost:hover { color: var(--g800); border-color: var(--g400); }
  .btn-nav-solid { font-size: .85rem; font-weight: 600; color: #fff; padding: 7px 16px; background: var(--blue); border-radius: 7px; transition: .15s; }
  .btn-nav-solid:hover { background: #1e40af; }

  /* ─── PRODUCT HERO ─── */
  .product-hero { background: #fff; padding: 44px 0 52px; border-bottom: 1px solid var(--g200); }
  .product-layout { display: grid; grid-template-columns: 430px 1fr; gap: 52px; align-items: flex-start; }

  /* gallery */
  .gallery-col { position: sticky; top: 80px; }
  .gallery-main {
    position: relative; border-radius: var(--r); overflow: hidden;
    background: var(--g50); border: 1px solid var(--g200);
    aspect-ratio: 85.6 / 54;
    width: 100%;
    margin-bottom: 10px; cursor: zoom-in;
  }
  .gallery-main img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
  .gallery-main:hover img { transform: scale(1.03); }
  .gallery-badge {
    position: absolute; top: 12px; left: 12px; z-index: 2;
    background: var(--green); color: #fff;
    font-size: .7rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
    padding: 4px 10px; border-radius: 5px;
  }
  .gallery-thumbs { display: flex; gap: 8px; }
  .thumb { width: 80px; height: 80px; flex-shrink: 0; border-radius: 8px; overflow: hidden; border: 2px solid var(--g200); cursor: pointer; background: var(--g50); transition: border-color .15s; }
  .thumb:hover, .thumb.active { border-color: var(--blue); }
  .thumb img { width: 100%; height: 100%; object-fit: cover; }

  /* ship row */
  .ship-row { display: flex; margin-top: 14px; border: 1px solid var(--g200); border-radius: var(--r); overflow: hidden; }
  .ship-item { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 5px; padding: 14px 6px; text-align: center; border-right: 1px solid var(--g200); }
  .ship-item:last-child { border-right: none; }
  .ship-item i { font-size: 1.2rem; color: var(--g700); }
  .ship-item span { font-size: .67rem; color: var(--g500); line-height: 1.3; font-weight: 500; }

  /* info col */
  .product-network-tag {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--green); color: #fff;
    font-size: .7rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
    padding: 4px 10px; border-radius: 5px; margin-bottom: 14px;
  }
  .product-network-tag::before { content:''; width:6px; height:6px; background:#fff; border-radius:50%; opacity:.85; }

  .product-title { font-size: 1.55rem; font-weight: 800; color: var(--g800); line-height: 1.2; margin-bottom: 16px; }

  /* tabs */
  .tabs-row { display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--g200); margin-bottom: 18px; }
  .tab-btn { font-size: .875rem; font-weight: 600; color: var(--g400); padding: 9px 18px; border: none; background: none; cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; transition: .15s; }
  .tab-btn.active { color: var(--g800); border-bottom-color: var(--g800); }
  .tab-btn:hover:not(.active) { color: var(--g600); }
  .rating-row { display: flex; align-items: center; gap: 7px; padding-bottom: 4px; }
  .stars { color: #f59e0b; font-size: .9rem; letter-spacing: -1px; }
  .review-ct { font-size: .82rem; color: var(--g500); }

  /* carriers */
  .carrier-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
  .carrier-row > span { font-size: .875rem; color: var(--g500); }
  .cbadge { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--g200); border-radius: 7px; padding: 5px 13px; font-size: .8rem; font-weight: 700; background: #fff; }
  .cbadge .dot { width: 7px; height: 7px; border-radius: 50%; }
  .cbadge.att  { color: var(--att);  } .cbadge.att  .dot { background: var(--att); }
  .cbadge.tmob { color: var(--tmob); } .cbadge.tmob .dot { background: var(--tmob); }
  .cbadge.vzw  { color: var(--vzw);  } .cbadge.vzw  .dot { background: var(--vzw); }

  /* feature list */
  .feat-list { list-style: none; margin-bottom: 24px; display: flex; flex-direction: column; gap: 8px; }
  .feat-list li { display: flex; align-items: flex-start; gap: 8px; font-size: .875rem; color: var(--g500); line-height: 1.55; }
  .feat-list li::before { content:'•'; color: var(--g800); font-weight: 700; flex-shrink: 0; font-size: 1rem; margin-top: 1px; }
  .feat-list li strong { color: var(--g800); }

  /* plan section */
  .plan-section { background: var(--g50); border: 1px solid var(--g200); border-radius: var(--r); padding: 20px; }
  .plan-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 14px; }
  .plan-head-title { font-size: .9rem; font-weight: 700; color: var(--g800); }
  .plan-orig { font-size: .9rem; color: var(--g400); text-decoration: line-through; margin-right: 4px; }
  .plan-sale { font-size: 1.4rem; font-weight: 800; color: #111; }
  .plan-cards { display: flex; gap: 10px; }
  .plan-card {
    flex: 1; border: 1.5px solid var(--g200); border-radius: 9px; padding: 14px 12px;
    cursor: pointer; background: #fff; transition: border-color .15s, box-shadow .15s; position: relative;
  }
  .plan-card:hover { border-color: var(--blue); }
  .plan-card.sel { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(26,86,219,.1); }
  .plan-card-pop {
    position: absolute; top: -9px; left: 50%; transform: translateX(-50%);
    background: #f97316; color: #fff;
    font-size: .62rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em;
    padding: 2px 8px; border-radius: 5px; white-space: nowrap;
  }
  .radio-wrap { display: flex; justify-content: flex-end; margin-bottom: 6px; }
  .radio-circle { width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--g300); display: grid; place-items: center; transition: border-color .15s; }
  .plan-card.sel .radio-circle { border-color: var(--blue); }
  .radio-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--blue); display: none; }
  .plan-card.sel .radio-dot { display: block; }
  .plan-card-data { font-size: 1rem; font-weight: 700; color: #111; }
  .plan-card-desc { font-size: .72rem; color: var(--g400); line-height: 1.4; margin-top: 3px; }
  .plan-card-price { font-size: 1.05rem; font-weight: 800; color: var(--blue); margin-top: 8px; }

  .cta-wrap { margin-top: 14px; display: flex; flex-direction: column; gap: 9px; }
  .btn-order {
    display: flex; align-items: center; justify-content: center; gap: 8px;
    background: var(--blue); color: #fff; font-size: 1rem; font-weight: 700;
    padding: 14px 24px; border-radius: 8px; border: none; cursor: pointer;
    box-shadow: 0 2px 12px rgba(26,86,219,.3); transition: background .15s, transform .15s;
    text-decoration: none;
  }
  .btn-order:hover { background: #1e40af; transform: translateY(-1px); }
  .btn-plans {
    display: flex; align-items: center; justify-content: center;
    background: #fff; color: var(--g700); font-size: .9rem; font-weight: 600;
    padding: 12px 24px; border-radius: 8px; border: 1.5px solid var(--g200);
    transition: .15s; text-decoration: none;
  }
  .btn-plans:hover { border-color: var(--g400); }
  .guar-note { display: flex; align-items: center; justify-content: center; gap: 6px; font-size: .78rem; color: var(--g400); }
  .guar-note i { color: var(--green); }

  /* ─── TRUST STRIP ─── */
  .trust-wrap { background: #fff; border-bottom: 1px solid var(--g200); }
  .trust-strip { display: flex; overflow-x: auto; scrollbar-width: none; }
  .trust-strip::-webkit-scrollbar { display: none; }
  .ts-item { display: flex; align-items: center; gap: 8px; flex-shrink: 0; font-size: .8rem; font-weight: 600; color: var(--g500); padding: 14px 26px; border-right: 1px solid var(--g200); white-space: nowrap; }
  .ts-item .dot { width: 6px; height: 6px; background: var(--green); border-radius: 50%; }

  /* ─── STATS LIGHT ─── */
  .stats-strip { background: var(--g50); border-bottom: 1px solid var(--g200); }
  .stats-grid { display: grid; grid-template-columns: repeat(4,1fr); }
  .stat-card { padding: 28px 20px; text-align: center; border-right: 1px solid var(--g200); }
  .stat-card:last-child { border-right: none; }
  .stat-num { display: block; font-size: 1.9rem; font-weight: 800; color: var(--blue); }
  .stat-label { font-size: .78rem; color: var(--g400); margin-top: 4px; }

  /* ─── SECTIONS COMMON ─── */
  .section { padding: 30px 0; }
  .section-sm { padding: 56px 0; }
  .s-header { text-align: center; margin-bottom: 48px; }
  .s-kicker { display: inline-block; font-size: .85rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--blue); margin-bottom: 10px; }
  .s-header h2 { font-size: clamp(1.5rem,3.5vw,2.1rem); font-weight: 800; color: var(--dark); }
  .s-header p { color: #6b7280; max-width: 520px; margin: 12px auto 0; font-size: .95rem; }

  /* ─── STEPS light ─── */
  .steps-section { background: var(--g50); border-top: 1px solid var(--g200); border-bottom: 1px solid var(--g200); }
  .steps-section .s-header h2 { color: var(--g800); }
  .steps-section .s-header p  { color: var(--g500); }
  .steps-section .s-kicker { color: var(--blue); }
  .steps-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 2px; background: var(--g200); border-radius: var(--r); overflow: hidden; }
  .step-card { background: #fff; padding: 36px 28px; transition: background .2s; }
  .step-card:hover { background: var(--blue-lt); }
  .step-num { font-size: 2.8rem; font-weight: 800; color: rgba(26,86,219,.1); line-height: 1; }
  .step-icon { width: 48px; height: 48px; background: var(--blue-lt); border: 1px solid #bfdbfe; border-radius: 12px; display: grid; place-items: center; font-size: 1.2rem; margin: -6px 0 14px; }
  .step-card h3 { font-size: .95rem; font-weight: 700; color: var(--g800); margin-bottom: 7px; }
  .step-card p  { font-size: .84rem; color: var(--g500); line-height: 1.65; }

  /* ─── ADVANTAGES white ─── */
  .adv-section { background: var(--g50); }
  .adv-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
  .adv-card { background: #fff; border: 1px solid var(--g200); border-radius: var(--r); padding: 26px 22px; transition: box-shadow .2s, transform .2s; }
  .adv-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,.08); transform: translateY(-3px); }
  .adv-icon { width: 46px; height: 46px; background: var(--blue-lt); border-radius: 12px; display: grid; place-items: center; font-size: 1.2rem; margin-bottom: 14px; }
  .adv-card h3 { font-size: .9rem; font-weight: 700; color: var(--g800); margin-bottom: 7px; }
  .adv-card p  { font-size: .83rem; color: var(--g500); line-height: 1.65; }

  /* ─── PRICING light ─── */
  .pricing-section { background: var(--g50); border-top: 1px solid var(--g200); }
  .pricing-section .s-header h2 { color: var(--g800); }
  .pricing-section .s-header p  { color: var(--g500); }
  .pricing-section .s-kicker { color: var(--blue); }
  .plan-notice { display: flex; justify-content: center; flex-wrap: wrap; gap: 20px; margin-bottom: 40px; }
  .pni { display: flex; align-items: center; gap: 6px; font-size: .92rem; font-weight: 600; color: var(--green); }
  .pricing-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
  .pricing-card { background: #fff; border: 1px solid var(--g200); border-radius: var(--r); overflow: hidden; transition: transform .2s, border-color .2s, box-shadow .2s; }
  .pricing-card:hover { transform: translateY(-4px); border-color: #93c5fd; box-shadow: 0 8px 24px rgba(0,0,0,.08); }
  .pricing-card.featured { border-color: var(--green); box-shadow: 0 0 0 1px var(--green); }
  .pc-head { padding: 20px 22px 16px; border-bottom: 1px solid var(--g200); display: flex; align-items: center; gap: 11px; }
  .pc-icon { width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center; font-size: 1.1rem; background: var(--blue-lt); border: 1px solid #bfdbfe; }
  .pc-icon.g { background: #f0fdf4; border-color: #bbf7d0; }
  .pc-icon.a { background: #fffbeb; border-color: #fde68a; }
  .pc-head h3 { font-size: .95rem; font-weight: 700; color: var(--g800); }
  .pc-tag { font-size: .67rem; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; padding: 2px 7px; border-radius: 4px; background: var(--blue-lt); color: var(--blue); margin-top: 3px; display: inline-block; }
  .pc-body { padding: 16px 22px 22px; }
  .plan-row { display: flex; align-items: center; justify-content: space-between; padding: 10px 12px; border-radius: 8px; margin-bottom: 6px; transition: background .15s; }
  .plan-row:hover { background: var(--g50); }
  .plan-row.best { background: var(--blue-lt); border: 1px solid #bfdbfe; }
  .pbadge { font-size: .59rem; font-weight: 700; text-transform: uppercase; padding: 2px 5px; border-radius: 4px; background: var(--blue); color: #fff; margin-left: 5px; vertical-align: middle; }
  .plan-data { font-weight: 700; font-size: .88rem; color: var(--g800); }
  .plan-days { font-size: .73rem; color: var(--g400); margin-top: 1px; }
  .plan-price { font-size: 1.05rem; font-weight: 800; color: var(--blue); }
  .pc-cta { display: flex; align-items: center; justify-content: center; width: 100%; padding: 10px; margin-top: 12px; background: var(--blue); color: #fff; font-size: .875rem; font-weight: 700; border-radius: 8px; border: none; cursor: pointer; transition: background .15s; text-decoration: none; }
  .pc-cta:hover { background: #1e40af; }

  /* ─── BRANDS ─── */
  .brands-section { background: #fff; border-top: 1px solid var(--g200); }
  .brands-grid { display: grid; grid-template-columns: repeat(5,1fr); gap: 12px; }
  .brand-card { background: var(--g50); border: 1px solid var(--g200); border-radius: 9px; padding: 18px 12px; text-align: center; transition: box-shadow .15s; }
  .brand-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.07); }
  .brand-cat  { font-size: .67rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--blue); margin-bottom: 6px; }
  .brand-names{ font-size: .79rem; color: var(--g500); line-height: 1.6; }

  /* ─── ABOUT ─── */
  .about-section { background: var(--g50); }
  .about-grid { display: grid; grid-template-columns: 3fr 2fr; gap: 56px; align-items: center; }
  .about-kicker { font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--blue); margin-bottom: 10px; }
  .about-section h2 { font-size: 1.9rem; font-weight: 800; color: var(--g800); margin-bottom: 14px; }
  .about-section p  { color: var(--g500); line-height: 1.75; margin-bottom: 10px; font-size: .9rem; }
  .metric-box { background: #fff; border: 1px solid var(--g200); border-radius: var(--r); padding: 28px; text-align: center; box-shadow: 0 2px 8px rgba(0,0,0,.05); }
  .metric-big { display: block; font-size: 2.6rem; font-weight: 800; color: var(--blue); line-height: 1; }
  .metric-label { font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--g400); margin-top: 4px; }
  .metric-hr { border: none; border-top: 1px solid var(--g200); margin: 18px 0; }

  /* ─── GUARANTEE ─── */
  .guar-band { background: #eff6ff; border-top: 1px solid #bfdbfe; border-bottom: 1px solid #bfdbfe; padding: 56px 0; text-align: center; }
  .guar-icon { width: 62px; height: 62px; background: #fff; border: 2px solid #93c5fd; border-radius: 50%; display: grid; place-items: center; margin: 0 auto 16px; font-size: 1.5rem; color: var(--blue); }
  .guar-band h2 { font-size: 1.6rem; font-weight: 800; color: var(--g800); margin-bottom: 10px; }
  .guar-band p  { color: var(--g500); max-width: 460px; margin: 0 auto; font-size: .9rem; }

  /* ─── FAQ ─── */
  .faq-section { background: #fff; }
  .faq-section .s-header h2 { color: var(--g800); }
  .faq-list { max-width: 740px; margin: 0 auto; }
  .faq-item { border: 1px solid var(--g200); border-radius: 9px; overflow: hidden; margin-bottom: 9px; }
  .faq-q { width: 100%; text-align: left; background: var(--g50); border: none; color: var(--g800); padding: 15px 18px; font-family: var(--font); font-size: .9rem; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 12px; transition: background .15s; }
  .faq-q:hover { background: var(--g100); }
  .faq-q .arr { font-size: .78rem; color: var(--g400); transition: transform .25s; }
  .faq-item.open .faq-q .arr { transform: rotate(180deg); }
  .faq-a { display: none; padding: 0 18px 16px; color: var(--g500); font-size: .875rem; line-height: 1.7; }
  .faq-item.open .faq-a { display: block; }

  /* ─── CTA BAND light ─── */
  .cta-band { background: var(--blue-lt); border-top: 1px solid #bfdbfe; padding: 72px 0; }
  .cta-inner { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: center; }
  .cta-band h2 { font-size: 1.9rem; font-weight: 800; color: var(--g800); margin-bottom: 12px; }
  .cta-band p  { color: var(--g500); font-size: .9rem; margin-bottom: 22px; }
  .cta-visual { background: #fff; border: 1px solid var(--g200); border-radius: var(--r); padding: 26px; text-align: center; box-shadow: 0 2px 8px rgba(0,0,0,.05); }
  .cta-visual p { margin-top: 10px; font-size: .77rem; color: var(--g400); }

  /* ─── FOOTER light ─── */
  footer { background: var(--g800); border-top: 1px solid var(--g200); padding: 48px 0 30px; }
  .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
  .footer-logo { font-size: 1.25rem; font-weight: 800; color: #fff; margin-bottom: 9px; }
  .footer-logo span { color: #93c5fd; }
  .footer-desc { font-size: .82rem; color: rgba(255,255,255,.5); line-height: 1.65; max-width: 250px; }
  .footer-col h4 { font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: rgba(255,255,255,.4); margin-bottom: 13px; }
  .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
  .footer-col li a { font-size: .84rem; color: rgba(255,255,255,.6); transition: color .15s; }
  .footer-col li a:hover { color: #fff; }
  .footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 20px; display: flex; justify-content: space-between; font-size: .77rem; color: rgba(255,255,255,.35); }

  /* ─── RESPONSIVE ─── */
  @media (max-width: 960px) {
    .product-layout { grid-template-columns: 1fr; gap: 28px; }
    .gallery-col { position: static; }
    .plan-cards { flex-wrap: wrap; }
    .plan-card  { min-width: calc(50% - 5px); }
    .stats-grid { grid-template-columns: repeat(2,1fr); }
    .steps-grid { grid-template-columns: 1fr; }
    .adv-grid   { grid-template-columns: repeat(2,1fr); }
    .pricing-grid { grid-template-columns: 1fr; }
    .brands-grid  { grid-template-columns: repeat(3,1fr); }
    .about-grid   { grid-template-columns: 1fr; }
    .cta-inner    { grid-template-columns: 1fr; }
    .footer-grid  { grid-template-columns: 1fr 1fr; }
    .nav-links    { display: none; }
  }
  @media (max-width: 600px) {
    .brands-grid { grid-template-columns: repeat(2,1fr); }
    .adv-grid    { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 5px; }

  .trust-strip {
    display: grid;
    grid-template-columns: 1fr 1fr;
    overflow: visible;
  }
  .ts-item {
    border-right: none;
    border-bottom: 1px solid var(--g200);
    justify-content: center;
    text-align: center;
    padding: 12px 10px;
  }
  .ts-item:nth-child(odd) {
    border-right: 1px solid var(--g200);
  }
  .ts-item:nth-last-child(-n+2) {
    border-bottom: none;
  }
}

/* ─── DATA USAGE ─── */
.usage-section { background: #fff; border-top: 1px solid var(--g200); }
.usage-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  margin-bottom: 24px;
}
.usage-card {
  background: var(--g50); border: 1px solid var(--g200);
  border-radius: var(--r); padding: 24px 20px;
  transition: box-shadow .2s, transform .2s;
}
.usage-card:hover { box-shadow: 0 6px 20px rgba(0,0,0,.07); transform: translateY(-2px); }
.usage-card-icon {
  width: 44px; height: 44px; background: var(--blue-lt);
  border: 1px solid #bfdbfe; border-radius: 10px;
  display: grid; place-items: center; font-size: 1.2rem; margin-bottom: 14px;
}
.usage-card h3 { font-size: .9rem; font-weight: 700; color: var(--g800); margin-bottom: 6px; }
.usage-card .usage-range {
  font-size: 1.3rem; font-weight: 800; color: var(--blue); line-height: 1; margin-bottom: 4px;
}
.usage-card p { font-size: .8rem; color: var(--g500); line-height: 1.5; }
.usage-tip {
  background: #fffbeb; border: 1px solid #fde68a;
  border-radius: var(--r); padding: 14px 18px;
  display: flex; align-items: flex-start; gap: 10px;
  font-size: .875rem; color: var(--g700);
}
.usage-tip i { color: #d97706; margin-top: 2px; flex-shrink: 0; }

@media (max-width: 700px) {
  .usage-grid { grid-template-columns: 1fr; }
}

/* ─── REVIEWS ─── */
.reviews-section { background: var(--g50); border-top: 1px solid var(--g200); }
.reviews-summary {
  display: flex; align-items: center; gap: 24px; justify-content: center;
  margin-bottom: 40px; flex-wrap: wrap;
}
.reviews-big-num {
  font-size: 3.5rem; font-weight: 800; color: var(--g800); line-height: 1;
}
.reviews-stars { color: #f59e0b; font-size: 1.4rem; letter-spacing: -1px; margin-bottom: 4px; }
.reviews-sub { font-size: .82rem; color: var(--g500); }
.reviews-divider { width: 1px; height: 48px; background: var(--g200); }
.reviews-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.review-card {
  background: #fff; border: 1px solid var(--g200);
  border-radius: var(--r); padding: 22px 20px;
  transition: box-shadow .2s;
}
.review-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,.07); }
.review-stars { color: #f59e0b; font-size: .9rem; margin-bottom: 10px; }
.review-text {
  font-size: .875rem; color: var(--g600); line-height: 1.65;
  margin-bottom: 14px; font-style: italic;
}
.review-author {
  display: flex; align-items: center; gap: 10px;
}
.review-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--blue-lt); border: 1px solid #bfdbfe;
  display: grid; place-items: center;
  font-size: .8rem; font-weight: 700; color: var(--blue);
  flex-shrink: 0;
}
.review-name { font-size: .82rem; font-weight: 600; color: var(--g800); }
.review-verified { font-size: .72rem; color: var(--green); display: flex; align-items: center; gap: 3px; }

@media (max-width: 700px) {
  .reviews-grid { grid-template-columns: 1fr; }
  .reviews-divider { display: none; }
}