:root{
      --ink:#0b0c0f; --ink-2:#1c1f26; --mute:#6b7280; --line:#e6e8ec; --paper:#f3f4f7;
      --surface:#fff; --azure:#0088ff; --azure-2:#0066db; --green:#1f9d55; --red:#c94300;
      --rail:#0e1016; --warm:#f0b090;
      --r:14px; --shadow:0 1px 0 rgba(15,18,28,.04), 0 18px 40px rgba(15,18,28,.06);
      --font:"Plus Jakarta Sans", system-ui, sans-serif; --mono:"JetBrains Mono", ui-monospace, monospace;
    }
    *{box-sizing:border-box}
    html,body{margin:0;min-height:100%;font-family:var(--font);color:var(--ink);background:
      radial-gradient(900px 420px at 85% -10%, rgba(0,136,255,.10), transparent 60%),
      radial-gradient(700px 380px at 5% 110%, rgba(240,176,144,.14), transparent 55%),
      var(--paper)}
    button,input,select{font:inherit} button{cursor:pointer} a{color:inherit;text-decoration:none}
    #cv-checkout{min-height:100vh}
    .shell{max-width:1120px;margin:0 auto;padding:28px 24px 64px}
    .top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:28px}
    .brand{display:inline-flex;align-items:center;gap:12px}
    .brand-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(145deg,var(--azure),var(--azure-2));color:#fff;display:grid;place-items:center;font-weight:800;letter-spacing:-.04em;box-shadow:0 8px 20px rgba(0,136,255,.32)}
    .brand strong{display:block;font-size:16px;letter-spacing:-.03em} .brand span{display:block;font-size:11px;color:var(--mute);margin-top:1px}
    .secure{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:650;color:var(--mute);background:rgba(255,255,255,.7);border:1px solid var(--line);padding:8px 12px;border-radius:999px}
    .secure i{width:8px;height:8px;border-radius:50%;background:var(--green);display:inline-block;box-shadow:0 0 0 4px rgba(31,157,85,.15)}
    .steps{display:flex;gap:8px;margin-bottom:22px;flex-wrap:wrap}
    .step{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:12px;font-weight:650;color:var(--mute)}
    .step.on{color:var(--ink);border-color:rgba(0,136,255,.35);background:#eef6ff}
    .step .n{width:20px;height:20px;border-radius:50%;display:grid;place-items:center;background:var(--paper);font-size:11px}
    .step.on .n{background:var(--azure);color:#fff}
    .layout{display:grid;grid-template-columns:1.35fr .95fr;gap:22px;align-items:start}
    .panel{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:24px;box-shadow:var(--shadow);animation:rise .45s cubic-bezier(.2,.8,.2,1) both}
    .panel + .panel, .form-stack .panel{margin-top:14px}
    .form-stack{display:flex;flex-direction:column;gap:14px}
    .panel h2{margin:0 0 4px;font-size:16px;letter-spacing:-.02em}
    .panel .sub{margin:0 0 18px;color:var(--mute);font-size:13px;line-height:1.45}
    .field{margin-bottom:14px}
    .field:last-child{margin-bottom:0}
    label{display:block;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--mute);margin:0 0 7px}
    input,select{
      width:100%;height:46px;border:1px solid var(--line);border-radius:12px;padding:0 14px;
      background:#fff;color:var(--ink);outline:none;transition:border-color .15s ease, box-shadow .15s ease
    }
    input:focus,select:focus{border-color:rgba(0,136,255,.55);box-shadow:0 0 0 3px rgba(0,136,255,.12)}
    input.err,select.err{border-color:var(--red)}
    .hint{font-size:12px;line-height:1.4;color:var(--mute);margin-top:5px;min-height:16px}
    .hint.bad{color:var(--red)}
    .row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .row3{display:grid;grid-template-columns:1.2fr .75fr .75fr;gap:12px}
    .card-wrap{position:relative}
    .card-wrap input{padding-right:88px;font-family:var(--mono);letter-spacing:.04em}
    .card-brands{position:absolute;right:12px;top:50%;transform:translateY(-50%);display:flex;gap:4px;pointer-events:none}
    .card-brands span{font-size:10px;font-weight:800;padding:3px 6px;border-radius:6px;background:var(--paper);color:var(--mute);opacity:.55}
    .card-brands span.on{opacity:1;background:#e8f3ff;color:var(--azure-2)}
    .pay-box{border:1px solid var(--line);border-radius:16px;padding:16px;background:linear-gradient(180deg,#fff,#fafbfc)}
    .btn{
      height:48px;padding:0 18px;border-radius:999px;border:1px solid transparent;font-weight:700;font-size:14px;
      display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;
      transition:transform .12s ease, box-shadow .12s ease, opacity .12s ease
    }
    .btn:hover{transform:translateY(-1px)} .btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
    .btn-primary{background:linear-gradient(180deg,var(--azure),var(--azure-2));color:#fff;box-shadow:0 12px 28px rgba(0,136,255,.28);border:0}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
    .legal{font-size:12px;line-height:1.5;color:var(--mute);margin:12px 0 0;text-align:center}
    .cart{position:sticky;top:22px;padding:0;overflow:hidden;background:linear-gradient(165deg,#12151d 0%,#0b0d13 55%,#10131b);color:#fff;border:0}
    .cart-inner{padding:24px}
    .cart-eyebrow{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:#8b93a7;font-weight:700;margin-bottom:10px}
    .cart-plan{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:8px}
    .cart-plan h3{margin:0;font-size:22px;letter-spacing:-.03em}
    .badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:11px;font-weight:700;background:rgba(0,136,255,.18);color:#7ec4ff;border:1px solid rgba(0,136,255,.35)}
    .price{font-family:var(--mono);font-size:40px;font-weight:600;letter-spacing:-.05em;margin:10px 0 4px}
    .price small{font-size:14px;color:#8b93a7;font-weight:500;letter-spacing:0;margin-left:4px}
    .period{color:#aeb6c8;font-size:13px;margin:0 0 18px}
    .toggle{display:grid;grid-template-columns:1fr 1fr;gap:6px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:5px;margin-bottom:18px}
    .toggle button{height:38px;border:0;border-radius:10px;background:transparent;color:#a7b0c3;font-weight:650;font-size:13px}
    .toggle button.on{background:rgba(0,136,255,.2);color:#fff;box-shadow:inset 0 0 0 1px rgba(0,136,255,.4)}
    .plans{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
    .plan-opt{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center;text-align:left;padding:12px 14px;border-radius:14px;border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.03);color:#fff}
    .plan-opt strong{display:block;font-size:14px} .plan-opt span{display:block;font-size:11px;color:#8b93a7;margin-top:3px}
    .plan-opt em{font-style:normal;font-family:var(--mono);font-size:13px;color:#c9d0de}
    .plan-opt.on{border-color:rgba(0,136,255,.45);background:rgba(0,136,255,.14)}
    .features{list-style:none;margin:0 0 18px;padding:0;display:flex;flex-direction:column;gap:9px}
    .features li{display:flex;gap:10px;align-items:flex-start;font-size:13px;line-height:1.4;color:#c5ccd9}
    .features li::before{content:"";width:16px;height:16px;flex:0 0 16px;margin-top:1px;border-radius:50%;background:rgba(0,136,255,.2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%237ec4ff' d='M6.5 11.2 3.8 8.5l1.1-1.1 1.6 1.6 4-4 1.1 1.1z'/%3E%3C/svg%3E") center/14px no-repeat}
    .totals{border-top:1px solid rgba(255,255,255,.08);padding-top:14px}
    .line{display:flex;justify-content:space-between;gap:12px;font-size:13px;color:#9aa3b8;margin:8px 0}
    .line strong{color:#fff;font-weight:650;font-family:var(--mono);font-size:13px}
    .due{display:flex;justify-content:space-between;align-items:baseline;margin-top:12px;padding-top:12px;border-top:1px solid rgba(255,255,255,.1)}
    .due span{font-size:13px;color:#aeb6c8;font-weight:650}
    .due strong{font-family:var(--mono);font-size:24px;letter-spacing:-.04em}
    .cart-note{margin:16px 0 0;font-size:12px;line-height:1.5;color:#7f879a}
    .trust{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:16px}
    .trust div{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07);border-radius:12px;padding:10px 12px;font-size:11px;line-height:1.4;color:#9aa3b8}
    .trust strong{display:block;color:#e8ebf2;font-size:12px;margin-bottom:3px}
    .busy .btn-primary{pointer-events:none}
    .spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
    @keyframes spin{to{transform:rotate(360deg)}}
    @keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
    .success{min-height:70vh;display:grid;place-items:center;text-align:center;padding:40px 20px}
    .success .mark{width:64px;height:64px;border-radius:20px;background:linear-gradient(145deg,var(--azure),var(--azure-2));color:#fff;display:grid;place-items:center;font-size:28px;font-weight:800;margin:0 auto 18px;box-shadow:0 16px 40px rgba(0,136,255,.35)}
    .success h1{margin:0 0 8px;font-size:32px;letter-spacing:-.04em}
    .success p{margin:0;color:var(--mute);font-size:15px;line-height:1.5;max-width:36ch}
    @media(max-width:960px){
      .layout{grid-template-columns:1fr}
      .cart{position:relative;top:auto;order:-1}
      .row3{grid-template-columns:1fr 1fr}
    }
    @media(max-width:560px){
      .shell{padding:20px 16px 48px}
      .row,.row3{grid-template-columns:1fr}
      .top{flex-direction:column;align-items:flex-start}
      .price{font-size:34px}
    }