/* Identidade KatoPhone (mesma da página de vendas) */
:root {
    --ink: #05070f; --ink-2: #0b1022; --ink-3: #141a33;
    --text: #0d1224; --muted: #5b6480; --muted-dark: #a3acc8;
    --line: #e4e8f2; --soft: #f4f6fb; --surface: #ffffff;
    --blue: #2f6bff; --cyan: #19c3ff; --green: #16c47f; --red: #ff4d5e; --amber: #b86e00;
    --grad: linear-gradient(110deg, #2f6bff 0%, #19c3ff 55%, #7ff0ff 100%);
    --ease: cubic-bezier(.2, .7, .2, 1);
    color-scheme: light;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--soft); color: var(--text); font-family: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif; font-size: 15px; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
button, input { font: inherit; color: inherit; }
[hidden] { display: none !important; }
.container { width: min(1120px, 100% - 40px); margin-inline: auto; }

/* Topo escuro */
.hero { position: relative; background: radial-gradient(1000px 500px at 75% -20%, #0d1a4a, transparent 60%), var(--ink); color: #fff; padding-bottom: 120px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.blob { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .5; animation: drift 18s ease-in-out infinite alternate; }
.b1 { width: 520px; height: 520px; background: #1d4dff; top: -220px; left: -120px; }
.b2 { width: 440px; height: 440px; background: #10b5ff; top: -60px; right: -160px; animation-delay: -7s; }
.grid-lines { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px); background-size: 56px 56px; mask-image: radial-gradient(ellipse at 50% 20%, #000 20%, transparent 75%); }
@keyframes drift { to { transform: translate(50px, 30px) scale(1.1); } }
.top { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 76px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 21px; letter-spacing: -.03em; text-decoration: none; }
.logo-mark { width: 32px; height: 30px; }
.top-right { display: flex; align-items: center; gap: 16px; font-size: 14px; }
.secure { display: inline-flex; align-items: center; gap: 6px; color: #c2cbe6; font-weight: 600; }
.secure svg { width: 16px; height: 16px; color: var(--green); }
.help { color: #fff; font-weight: 700; text-decoration: none; padding: 8px 14px; border-radius: 999px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16); }
.hero-copy { position: relative; padding-top: 34px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; padding: 7px 14px; border-radius: 999px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14); font-size: 13px; font-weight: 600; color: #cfe4ff; margin: 0 0 18px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); animation: ping 2s infinite; }
@keyframes ping { 0% { box-shadow: 0 0 0 0 rgba(22,196,127,.7); } 70%, 100% { box-shadow: 0 0 0 10px rgba(22,196,127,0); } }
.hero h1 { font-size: clamp(32px, 4.6vw, 50px); letter-spacing: -.035em; line-height: 1.05; margin: 0 0 12px; font-weight: 800; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-copy > p:last-child { color: var(--muted-dark); font-size: 17px; margin: 0; }

/* Layout */
.checkout-layout { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 24px; align-items: start; margin-top: -84px; padding-bottom: 60px; }
.checkout-main { display: grid; gap: 18px; min-width: 0; }
#checkout { display: grid; gap: 18px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 22px; padding: 26px; box-shadow: 0 20px 50px -30px rgba(16,24,64,.35); }
.step h2 { display: flex; align-items: center; gap: 12px; font-size: 19px; letter-spacing: -.015em; margin: 0 0 18px; }
.step-n { width: 32px; height: 32px; border-radius: 10px; display: grid; place-items: center; background: var(--ink); color: #fff; font-size: 15px; font-weight: 800; flex: 0 0 auto; }
.notice { background: #fff7e8; color: var(--amber); border: 1px solid #ffe2b0; padding: 12px 16px; border-radius: 14px; font-size: 14px; font-weight: 600; }

/* Planos */
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.plan { position: relative; display: grid; gap: 4px; padding: 18px 18px 18px 50px; border: 2px solid var(--line); border-radius: 18px; cursor: pointer; transition: border-color .25s, box-shadow .25s, transform .25s var(--ease); }
.plan:hover { transform: translateY(-2px); }
.plan input { position: absolute; opacity: 0; pointer-events: none; }
.radio { position: absolute; left: 18px; top: 20px; width: 20px; height: 20px; border-radius: 50%; border: 2px solid #c7cfe2; transition: border-color .2s; }
.radio::after { content: ""; position: absolute; inset: 3px; border-radius: 50%; background: var(--grad); transform: scale(0); transition: transform .25s var(--ease); }
.plan.is-selected { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(47,107,255,.12); }
.plan.is-selected .radio { border-color: var(--blue); }
.plan.is-selected .radio::after { transform: scale(1); }
.plan:focus-within { outline: 3px solid rgba(25,195,255,.35); outline-offset: 2px; }
.plan-name { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-weight: 800; font-size: 16px; }
.plan-badge { padding: 3px 9px; border-radius: 999px; background: var(--grad); color: #04101f; font-size: 11px; font-weight: 800; }
.plan-price { font-size: 26px; font-weight: 800; letter-spacing: -.03em; }
.plan-price small { font-size: 13px; font-weight: 600; color: var(--muted); margin-left: 2px; }
.plan-desc { color: var(--muted); font-size: 13px; }

/* Formulário */
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.wide { grid-column: 1 / -1; }
.field { display: flex; flex-direction: column; gap: 7px; min-width: 0; }
.field > span { font-size: 13px; font-weight: 700; color: var(--muted); }
.field input { padding: 13px 14px; border: 1.5px solid var(--line); border-radius: 12px; background: #fff; min-width: 0; transition: border-color .2s, box-shadow .2s; }
.field input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 4px rgba(47,107,255,.12); }
.renew summary { cursor: pointer; color: var(--blue); font-weight: 700; font-size: 14px; }
.renew .field { margin-top: 12px; }
.tabs { display: inline-flex; gap: 4px; padding: 5px; background: var(--soft); border-radius: 14px; margin-bottom: 14px; }
.tab { display: inline-flex; align-items: center; gap: 8px; border: 0; background: transparent; padding: 10px 18px; border-radius: 10px; cursor: pointer; font-weight: 700; color: var(--muted); transition: background .2s, color .2s, box-shadow .2s; }
.tab svg { width: 18px; height: 18px; }
.tab.is-active { background: #fff; color: var(--text); box-shadow: 0 4px 12px -4px rgba(16,24,64,.25); }
.tab[data-billing="PIX"].is-active svg { color: #32bcad; }
.hint { color: var(--muted); font-size: 13.5px; margin: 0; line-height: 1.55; }
.error { margin-top: 16px; padding: 12px 16px; border-radius: 12px; background: #fff0f2; color: #c4142a; font-weight: 600; }
.pay { width: 100%; margin-top: 20px; padding: 16px; border: 0; border-radius: 999px; background: var(--grad); color: #04101f; font-weight: 800; font-size: 16.5px; cursor: pointer; box-shadow: 0 14px 30px -10px rgba(25,195,255,.6); transition: transform .25s var(--ease), box-shadow .25s; }
.pay:hover { transform: translateY(-2px); box-shadow: 0 20px 40px -12px rgba(25,195,255,.7); }
.pay:disabled { opacity: .6; cursor: wait; transform: none; }
.fine { text-align: center; font-size: 12.5px; color: var(--muted); margin: 14px 0 0; }

/* Resumo */
.summary { position: sticky; top: 20px; }
.summary-card { background: var(--ink); color: #fff; border-radius: 24px; padding: 26px; box-shadow: 0 30px 60px -24px rgba(5,7,15,.6); position: relative; overflow: hidden; }
.summary-card::before { content: ""; position: absolute; width: 260px; height: 260px; border-radius: 50%; background: #1d4dff; filter: blur(80px); opacity: .35; top: -120px; right: -100px; }
.summary-card > * { position: relative; }
.summary-kicker { margin: 0 0 14px; font-size: 12px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--cyan); }
.summary-plan strong { display: block; font-size: 22px; letter-spacing: -.02em; }
.summary-plan span { color: var(--muted-dark); font-size: 13.5px; }
.summary-features { list-style: none; padding: 0; margin: 18px 0; display: grid; gap: 9px; font-size: 14px; color: #d5dbef; }
.summary-features li::before { content: "✓"; color: var(--green); font-weight: 800; margin-right: 8px; }
.summary-total { display: flex; justify-content: space-between; align-items: baseline; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.12); }
.summary-total span { color: var(--muted-dark); font-weight: 600; }
.summary-total strong { font-size: 28px; letter-spacing: -.03em; }
.summary-total small { font-size: 13px; color: var(--muted-dark); margin-left: 2px; }
.assurances { list-style: none; padding: 16px 0 0; margin: 16px 0 0; border-top: 1px solid rgba(255,255,255,.12); display: grid; gap: 9px; font-size: 13.5px; color: #c2cbe6; }
.assurances li { display: flex; align-items: center; gap: 8px; }
.assurances svg { width: 16px; height: 16px; color: var(--green); flex: 0 0 auto; }

/* Resultado (Pix / chave) */
.result { text-align: center; padding: 36px 26px; }
.result h2 { font-size: 26px; letter-spacing: -.02em; margin: 0 0 8px; }
.result > p { color: var(--muted); margin: 0 0 6px; }
.result img { width: 240px; height: 240px; image-rendering: pixelated; background: #fff; border-radius: 16px; padding: 10px; margin: 16px auto; border: 1px solid var(--line); display: block; }
.copy { display: flex; gap: 8px; margin: 12px auto; max-width: 560px; }
.copy input { flex: 1; padding: 12px; border: 1.5px solid var(--line); border-radius: 12px; background: var(--soft); font-family: ui-monospace, Consolas, monospace; font-size: 12px; min-width: 0; }
.copy button, .secondary { padding: 11px 18px; border-radius: 999px; border: 0; background: var(--ink); color: #fff; cursor: pointer; font-weight: 700; }
.license-key { font-family: ui-monospace, Consolas, monospace; font-size: clamp(20px, 4vw, 30px); font-weight: 800; letter-spacing: .05em; padding: 18px 26px; border-radius: 18px; background: var(--ink); color: #fff; margin: 18px auto; display: inline-block; box-shadow: 0 0 0 4px rgba(22,196,127,.25); }
.waiting { color: var(--muted); display: inline-flex; align-items: center; gap: 10px; }
.waiting::before { content: ""; width: 14px; height: 14px; border-radius: 50%; border: 2.5px solid var(--line); border-top-color: var(--blue); animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.steps { text-align: left; max-width: 520px; margin: 20px auto 0; color: var(--muted); line-height: 1.8; }

.footer { background: var(--ink); color: #6e7794; font-size: 12.5px; padding: 26px 0; }
.footer .container { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

@media (max-width: 900px) {
    .checkout-layout { grid-template-columns: 1fr; }
    .summary { position: static; order: -1; }
    .summary-features, .assurances { display: none; }
}
@media (max-width: 600px) {
    .container { width: calc(100% - 32px); }
    .grid { grid-template-columns: 1fr; }
    .card { padding: 20px; }
    .secure { display: none; }
    .tab { padding: 10px 12px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }