/* Checkout público: mesma linguagem da home (home-velocity.css), isolada do shell operacional. */
.checkout-page {
    --ck-bg: #06090f;
    --ck-surface: #0c111a;
    --ck-surface-2: #111827;
    --ck-field: #0a0e18;
    --ck-line: rgba(168, 162, 255, .14);
    --ck-line-strong: rgba(168, 162, 255, .32);
    --ck-ink: #f4f5fb;
    --ck-muted: #a9b0c3;
    --ck-primary: #4930ff;
    --ck-violet: #7c6cff;
    --ck-lilac: #a78bfa;
    --ck-soft: #c9c4ff;
    --ck-success: #7ef0b0;
    --ck-glow: 91, 69, 255;
    --ck-radius: 22px;
    position: relative;
    isolation: isolate;
    min-height: 100vh;
    overflow-x: clip;
    color-scheme: dark;
    background: var(--ck-bg);
    color: var(--ck-ink);
    font-family: 'Nunito', system-ui, sans-serif;
}
.checkout-page *, .checkout-page *::before, .checkout-page *::after { box-sizing: border-box; }
.checkout-page a { color: var(--ck-soft); }
.checkout-page a:hover { color: #fff; }
.checkout-page h1, .checkout-page h2, .checkout-page h3 { color: var(--ck-ink); margin: 0; letter-spacing: -.03em; }
.checkout-page fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
.checkout-page fieldset:disabled { opacity: .8; }
.checkout-page :is(button, a, summary):focus:not(:focus-visible) { outline: 0; }
.checkout-page button:focus-visible, .checkout-page a:focus-visible, .checkout-page summary:focus-visible { outline: 3px solid var(--ck-soft); outline-offset: 3px; }

/* Fundo: grade pontilhada e brilho índigo no topo, como o hero da home. */
.checkout-backdrop { position: absolute; inset: 0 0 auto; height: 620px; z-index: -1; pointer-events: none; }
.checkout-backdrop::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(201, 196, 255, .2) 1px, transparent 1px);
    background-size: 22px 22px;
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 0%, #000 25%, transparent 75%);
    mask-image: radial-gradient(ellipse 70% 60% at 50% 0%, #000 25%, transparent 75%);
}
.checkout-backdrop::after {
    content: "";
    position: absolute;
    top: -260px;
    left: 50%;
    width: 900px;
    height: 520px;
    transform: translateX(-50%);
    border-radius: 50%;
    background: radial-gradient(closest-side, rgba(var(--ck-glow), .32), transparent);
    filter: blur(20px);
}

/* Cabeçalho enxuto: sem navegação para não tirar o foco da contratação. */
.checkout-header {
    width: min(1140px, calc(100% - 32px));
    margin: 14px auto 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 10px 12px 10px 18px;
    border: 1px solid var(--ck-line);
    border-radius: 999px;
    background: rgba(8, 11, 20, .72);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, .4);
}
.checkout-brand { display: inline-flex; align-items: center; gap: 9px; font-size: 19px; letter-spacing: -.02em; text-decoration: none !important; color: var(--ck-ink) !important; }
.checkout-brand img { object-fit: contain; }
.checkout-secure { display: inline-flex; align-items: center; gap: 8px; padding: 7px 14px; border: 1px solid var(--ck-line-strong); border-radius: 999px; background: rgba(124, 108, 255, .08); font-size: 12px; font-weight: 700; color: var(--ck-soft); }
.checkout-secure i { color: var(--ck-success); }

/* Abertura */
.checkout-main { width: min(1140px, calc(100% - 32px)); margin: 0 auto; padding: 56px 0 40px; }
.checkout-intro { max-width: 720px; margin: 0 auto 40px; text-align: center; }
.checkout-eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 5px 13px; border: 1px solid var(--ck-line-strong); border-radius: 999px; background: rgba(124, 108, 255, .06); font-size: 11px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--ck-soft); margin-bottom: 16px; }
.checkout-eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ck-lilac); box-shadow: 0 0 10px var(--ck-lilac); }
.checkout-intro h1 { font-size: clamp(32px, 4.6vw, 52px); line-height: 1.05; font-weight: 500; letter-spacing: -.045em; }
.checkout-intro p { color: var(--ck-muted); font-size: 16px; line-height: 1.6; margin: 14px 0 0; }
.checkout-perks { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 22px; list-style: none; padding: 0; margin: 22px 0 0; font-size: 13px; font-weight: 700; color: #d5d8e6; }
.checkout-perks i { color: var(--ck-lilac); margin-right: 6px; }

/* Grade principal */
.checkout-grid { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 24px; align-items: start; }
.checkout-form-card, .checkout-summary, .checkout-state, .checkout-mobile-summary {
    position: relative;
    border: 1px solid var(--ck-line);
    border-radius: var(--ck-radius);
    background: radial-gradient(120% 90% at 50% 120%, rgba(73, 48, 255, .16), transparent 60%), linear-gradient(180deg, var(--ck-surface-2), var(--ck-surface));
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .05), 0 20px 50px rgba(0, 0, 0, .35);
}
.checkout-form-card { padding: 32px; }

/* Etapas */
.checkout-steps { display: flex; gap: 12px; list-style: none; padding: 0; margin: 0 0 30px; }
.checkout-steps li { flex: 1; display: flex; align-items: center; gap: 12px; padding: 12px 14px; border: 1px solid var(--ck-line); border-radius: 16px; background: rgba(8, 11, 20, .5); color: var(--ck-muted); min-width: 0; }
.checkout-steps li > span { display: grid; place-items: center; width: 34px; height: 34px; flex-shrink: 0; border-radius: 50%; border: 1px solid var(--ck-line-strong); font-weight: 800; font-size: 14px; }
.checkout-steps li.active { color: var(--ck-ink); border-color: rgba(201, 196, 255, .45); background: rgba(124, 108, 255, .1); box-shadow: 0 0 0 1px rgba(124, 108, 255, .25), 0 0 30px rgba(var(--ck-glow), .18); }
.checkout-steps li.active > span { color: #fff; border-color: rgba(201, 196, 255, .55); background: linear-gradient(180deg, #6d5cff, var(--ck-primary)); box-shadow: 0 0 18px rgba(var(--ck-glow), .6); }
.checkout-steps li.done > span { color: var(--ck-success); border-color: rgba(126, 240, 176, .35); background: rgba(126, 240, 176, .1); }
.checkout-steps strong { display: block; font-size: 14px; }
.checkout-steps small { display: block; margin-top: 2px; font-size: 11px; color: var(--ck-muted); }

/* Formulário */
.checkout-page h2 { font-size: 24px; font-weight: 600; line-height: 1.25; }
#checkout-step-title { scroll-margin-top: 24px; outline: none; }
.checkout-section-hint { margin: 8px 0 26px; font-size: 14px; line-height: 1.65; color: var(--ck-muted); }
.checkout-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.checkout-field { min-width: 0; }
.checkout-field.full { grid-column: 1 / -1; }
.checkout-field label { display: block; margin: 0 0 7px; font-size: 13px; font-weight: 700; color: var(--ck-ink); }
.checkout-field input, .checkout-cart-editor select {
    width: 100%;
    min-width: 0;
    height: 50px;
    padding: 12px 15px;
    border: 1px solid var(--ck-line-strong);
    border-radius: 14px;
    background: var(--ck-field);
    color: var(--ck-ink);
    font: inherit;
    font-size: 15px;
    transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.checkout-field input::placeholder { color: #7d869c; }
.checkout-field input:hover, .checkout-cart-editor select:hover { border-color: rgba(201, 196, 255, .45); }
.checkout-field input:focus, .checkout-cart-editor select:focus { outline: 0; border-color: var(--ck-soft); background: #0d1120; box-shadow: 0 0 0 4px rgba(124, 108, 255, .2); }
.checkout-field input:disabled { color: var(--ck-muted); }
.checkout-field input:-webkit-autofill, .checkout-field input:-webkit-autofill:focus { -webkit-text-fill-color: var(--ck-ink); -webkit-box-shadow: 0 0 0 1000px var(--ck-field) inset; caret-color: var(--ck-ink); }
.checkout-field small { display: block; margin-top: 6px; font-size: 11.5px; line-height: 1.5; color: var(--ck-muted); }
.checkout-field-tip { font-weight: 400; font-size: 11px; color: var(--ck-muted); }
.checkout-address-title { display: flex; align-items: center; gap: 8px; margin: 30px 0 16px; padding-top: 26px; border-top: 1px solid var(--ck-line); font-size: 16px; font-weight: 700; }
.checkout-address-title i { color: var(--ck-lilac); font-size: 14px; }
.checkout-consent { display: flex; align-items: flex-start; gap: 11px; margin-top: 26px; font-size: 12.5px; line-height: 1.7; color: var(--ck-muted); cursor: pointer; }
.checkout-consent input { width: 18px; height: 18px; margin-top: 3px; flex-shrink: 0; accent-color: var(--ck-violet); }
.checkout-consent a { text-decoration: underline; }

/* Botões em pílula, iguais aos da home */
.checkout-actions { display: flex; gap: 12px; margin-top: 28px; }
.checkout-primary, .checkout-secondary {
    min-height: 52px;
    padding: 13px 24px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font: inherit;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.2;
    cursor: pointer;
    transition: transform .25s ease, box-shadow .25s ease, filter .25s ease, background .25s ease;
}
.checkout-primary {
    flex: 1;
    border: 1px solid rgba(201, 196, 255, .55);
    background: linear-gradient(180deg, #6d5cff 0%, var(--ck-primary) 100%);
    color: #fff;
    box-shadow: 0 0 0 1px rgba(73, 48, 255, .35), 0 8px 26px rgba(var(--ck-glow), .45), inset 0 1px 0 rgba(255, 255, 255, .35);
}
.checkout-primary:hover:not(:disabled) { transform: translateY(-2px); filter: brightness(1.1); box-shadow: 0 0 0 1px rgba(73, 48, 255, .5), 0 14px 36px rgba(var(--ck-glow), .6), inset 0 1px 0 rgba(255, 255, 255, .35); }
.checkout-primary:hover:not(:disabled) i { transform: translateX(3px); }
.checkout-primary i { font-size: 13px; transition: transform .25s ease; }
.checkout-primary:disabled { opacity: .6; cursor: wait; }
.checkout-secondary { border: 1px solid var(--ck-line-strong); background: rgba(255, 255, 255, .03); color: var(--ck-ink); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .08); }
.checkout-secondary:hover { background: rgba(124, 108, 255, .12); }
.checkout-bottom-note { margin: 16px 0 0; text-align: center; font-size: 11.5px; line-height: 1.6; color: var(--ck-muted); }
.checkout-bottom-note i { margin-right: 5px; color: var(--ck-success); }

/* Cartão */
.checkout-card-preview {
    max-width: 420px;
    margin: 0 0 26px;
    padding: 22px 25px;
    border: 1px solid rgba(201, 196, 255, .35);
    border-radius: 18px;
    color: #fff;
    background:
        radial-gradient(70% 90% at 100% 0%, rgba(167, 139, 250, .75), transparent 70%),
        repeating-linear-gradient(60deg, transparent 0 22px, rgba(201, 196, 255, .06) 22px 23px),
        linear-gradient(125deg, #17153a, #3b2bb5);
    box-shadow: 0 18px 40px rgba(0, 0, 0, .45), 0 0 40px rgba(var(--ck-glow), .3);
}
.checkout-card-preview > span { display: flex; justify-content: space-between; font-size: 15px; font-weight: 700; opacity: .9; }
.checkout-card-chip { width: 33px; height: 26px; margin: 22px 0 15px; border: 1px solid #e8d2a8; border-radius: 6px; background: linear-gradient(125deg, #e6c18d, #f6e6cc); }
.checkout-card-preview > strong { display: block; font-family: monospace; font-size: 21px; font-weight: 400; letter-spacing: .1em; white-space: nowrap; }
.checkout-card-preview > div:last-child { display: flex; justify-content: space-between; gap: 12px; margin-top: 22px; font-size: 10px; letter-spacing: .07em; }
.checkout-card-preview > div:last-child span:first-child { max-width: 75%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.checkout-validation-note { display: flex; gap: 12px; margin-top: 24px; padding: 18px; border: 1px solid var(--ck-line-strong); border-radius: 16px; background: rgba(124, 108, 255, .08); }
.checkout-validation-note > i { margin-top: 3px; color: var(--ck-soft); }
.checkout-validation-note strong { display: block; margin-bottom: 5px; font-size: 13px; }
.checkout-validation-note p { margin: 0 0 6px; font-size: 12.5px; line-height: 1.7; color: var(--ck-muted); }
.checkout-validation-note small { display: block; font-size: 11.5px; line-height: 1.6; color: var(--ck-muted); }
.checkout-account-recap { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 10px; padding: 18px 0; border-bottom: 1px solid var(--ck-line); }
.checkout-account-recap strong, .checkout-account-recap span { display: block; font-size: 12.5px; overflow-wrap: anywhere; }
.checkout-account-recap span { margin-top: 4px; color: var(--ck-muted); }
.checkout-account-recap button { flex-shrink: 0; border: 0; background: none; color: var(--ck-soft); font: inherit; font-size: 12px; font-weight: 700; text-decoration: underline; cursor: pointer; }

/* Mensagens */
.checkout-error, .checkout-notice { display: flex; gap: 10px; margin: 20px 0 0; padding: 14px 16px; border-radius: 14px; font-size: 13px; line-height: 1.6; }
.checkout-error { color: #fda4af; background: rgba(239, 68, 68, .1); border: 1px solid rgba(239, 68, 68, .3); }
.checkout-error i { margin-top: 3px; }
.checkout-notice { margin: 0 0 20px; color: #fde68a; background: rgba(234, 179, 8, .1); border: 1px solid rgba(234, 179, 8, .25); }
.checkout-state { padding: 56px 24px; text-align: center; }
.checkout-state p { margin: 18px 0; font-size: 14px; color: var(--ck-muted); }
.checkout-state .checkout-primary { width: min(240px, 100%); margin: 12px auto 18px; display: flex; }
.checkout-state a { font-size: 14px; text-decoration: underline; }
.checkout-spinner { display: inline-block !important; width: 18px; height: 18px; flex-shrink: 0; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: checkout-spin .8s linear infinite; }
.checkout-state > .checkout-spinner { color: var(--ck-soft); width: 28px; height: 28px; }
@keyframes checkout-spin { to { transform: rotate(360deg); } }

/* Resumo: cartão em destaque, como o plano recomendado da home */
.checkout-summary {
    position: sticky;
    top: 24px;
    padding: 26px;
    border-color: rgba(201, 196, 255, .4);
    background:
        radial-gradient(70% 45% at 85% 0%, rgba(167, 139, 250, .38), transparent 70%),
        repeating-linear-gradient(60deg, transparent 0 22px, rgba(201, 196, 255, .04) 22px 23px),
        repeating-linear-gradient(-60deg, transparent 0 22px, rgba(201, 196, 255, .04) 22px 23px),
        linear-gradient(180deg, #15133a, var(--ck-surface));
    box-shadow: 0 0 0 1px rgba(124, 108, 255, .25), 0 30px 70px rgba(0, 0, 0, .5), 0 0 60px rgba(var(--ck-glow), .2);
}
.checkout-summary-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 6px; }
.checkout-summary-head .checkout-eyebrow { margin-bottom: 10px; }
.checkout-summary h2 { font-size: 21px; }
.checkout-summary-edit { display: inline-flex; align-items: center; gap: 7px; flex-shrink: 0; min-height: 36px; padding: 7px 14px; border: 1px solid var(--ck-line-strong); border-radius: 999px; background: rgba(255, 255, 255, .03); color: var(--ck-soft); font: inherit; font-size: 12px; font-weight: 700; cursor: pointer; transition: background .2s ease, border-color .2s ease; }
.checkout-summary-edit:hover:not(:disabled) { background: rgba(124, 108, 255, .16); border-color: var(--ck-soft); color: #fff; }
.checkout-summary-edit i { font-size: 10px; }
.checkout-summary button:disabled { opacity: .6; cursor: wait; }
.checkout-summary-status { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--ck-muted); margin: 10px 0 0; }
.checkout-summary-status .checkout-spinner { width: 14px; height: 14px; }
.checkout-items { list-style: none; padding: 0; margin: 14px 0 18px; }
.checkout-items li { display: flex; align-items: center; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--ck-line); font-size: 14px; }
.checkout-items li > div { flex: 1; min-width: 0; }
.checkout-items li strong { display: block; line-height: 1.4; overflow-wrap: anywhere; }
.checkout-items li div > span { display: block; margin-top: 3px; font-size: 11.5px; color: var(--ck-muted); }
.checkout-items li > span:last-child { white-space: nowrap; font-size: 14px; font-weight: 700; }
.checkout-item-icon { display: grid; place-items: center; width: 38px; height: 38px; flex-shrink: 0; border-radius: 12px; background: rgba(124, 108, 255, .14); border: 1px solid var(--ck-line-strong); color: var(--ck-soft); font-size: 14px; }
.checkout-today { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 16px 18px; border: 1px solid rgba(126, 240, 176, .3); border-radius: 16px; background: rgba(126, 240, 176, .08); color: #c8f7dd; font-size: 13px; font-weight: 700; }
.checkout-today strong { font-size: 24px; font-weight: 800; color: #fff; letter-spacing: -.02em; }
.checkout-summary-total { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 0 4px; font-size: 13px; color: var(--ck-muted); }
.checkout-summary-total strong { text-align: right; white-space: nowrap; font-size: 22px; font-weight: 800; color: var(--ck-ink); letter-spacing: -.02em; }
.checkout-summary-total small { display: block; margin-top: 2px; font-size: 11px; font-weight: 400; color: var(--ck-muted); letter-spacing: 0; }
.checkout-trial { display: flex; gap: 11px; margin: 20px 0 0; }
.checkout-trial > span { display: grid; place-items: center; width: 24px; height: 24px; flex-shrink: 0; border-radius: 50%; background: rgba(126, 240, 176, .12); border: 1px solid rgba(126, 240, 176, .3); color: var(--ck-success); font-size: 10px; }
.checkout-trial strong { font-size: 13.5px; }
.checkout-trial p { margin: 5px 0 0; font-size: 12px; line-height: 1.65; color: var(--ck-muted); }
.checkout-summary-note { display: flex; align-items: flex-start; gap: 10px; margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--ck-line); }
.checkout-summary-note i { margin-top: 3px; font-size: 14px; color: var(--ck-soft); }
.checkout-summary-note p { margin: 0; font-size: 11.5px; line-height: 1.7; color: var(--ck-muted); }

/* Compartilhar: recolhido para não competir com a contratação */
.checkout-share { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--ck-line); }
.checkout-share summary { display: flex; align-items: center; gap: 8px; min-height: 36px; list-style: none; cursor: pointer; font-size: 12.5px; font-weight: 700; color: var(--ck-soft); }
.checkout-share summary::-webkit-details-marker { display: none; }
.checkout-share summary::after { content: "+"; margin-left: auto; font-size: 16px; line-height: 1; }
.checkout-share[open] summary::after { content: "−"; }
.checkout-share > div { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
.checkout-share input { width: 100%; min-width: 0; padding: 10px 12px; border: 1px solid var(--ck-line-strong); border-radius: 12px; background: var(--ck-field); color: var(--ck-muted); font-size: 11.5px; }
.checkout-share button { min-height: 40px; padding: 10px; border: 1px solid var(--ck-line-strong); border-radius: 999px; background: rgba(255, 255, 255, .03); color: var(--ck-soft); font: inherit; font-size: 12.5px; font-weight: 700; cursor: pointer; }
.checkout-share button:hover { background: rgba(124, 108, 255, .14); }
.checkout-share small { display: block; margin-top: 8px; font-size: 11px; line-height: 1.6; color: var(--ck-muted); }

/* Resumo compacto no topo (celular) */
.checkout-mobile-summary { display: none; margin-bottom: 16px; padding: 0 18px; border-radius: 18px; }
.checkout-mobile-summary summary { display: flex; align-items: center; gap: 10px; min-height: 58px; list-style: none; cursor: pointer; font-size: 14px; font-weight: 700; }
.checkout-mobile-summary summary::-webkit-details-marker { display: none; }
.checkout-mobile-summary summary > span { flex: 1; min-width: 0; color: var(--ck-soft); }
.checkout-mobile-summary summary > span i { margin-right: 6px; }
.checkout-mobile-summary summary strong { font-size: 16px; white-space: nowrap; }
.checkout-mobile-summary summary small { font-size: 11px; font-weight: 400; color: var(--ck-muted); }
.checkout-mobile-chevron { font-size: 11px; color: var(--ck-muted); transition: transform .25s ease; }
.checkout-mobile-summary[open] .checkout-mobile-chevron { transform: rotate(180deg); }
.checkout-mobile-summary .checkout-items { margin: 0 0 14px; border-top: 1px solid var(--ck-line); }
.checkout-mobile-summary .checkout-today { margin-bottom: 16px; }

.checkout-help { margin: 32px 0 0; text-align: center; font-size: 13px; line-height: 1.7; color: var(--ck-muted); }
.checkout-help a { font-weight: 700; text-decoration: underline; }

/* Modal "Alterar minha seleção" */
.checkout-cart-modal { width: min(560px, calc(100% - 32px)); max-height: calc(100dvh - 32px); margin: auto; padding: 26px; border: 1px solid var(--ck-line-strong); border-radius: var(--ck-radius); background: linear-gradient(180deg, var(--ck-surface-2), var(--ck-surface)); color: var(--ck-ink); overflow-y: auto; overscroll-behavior: contain; box-shadow: 0 30px 80px rgba(0, 0, 0, .6), 0 0 60px rgba(var(--ck-glow), .2); }
.checkout-cart-modal::backdrop { background: rgba(3, 5, 10, .72); backdrop-filter: blur(4px); }
html:has(.checkout-cart-modal[open]) { overflow: hidden; }
.checkout-modal-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.checkout-modal-heading h2 { margin: 0; font-size: 21px; }
.checkout-modal-close { flex-shrink: 0; width: 44px; height: 44px; border: 1px solid var(--ck-line-strong); border-radius: 50%; background: rgba(255, 255, 255, .03); color: var(--ck-ink); font-size: 15px; cursor: pointer; }
.checkout-modal-close:hover { background: rgba(124, 108, 255, .14); }
.checkout-cart-editor .checkout-field { margin-top: 16px; }
.checkout-cart-editor select { font-size: 14px; }
.checkout-cart-editor .checkout-actions { flex-wrap: wrap; }
.checkout-cart-modal button:disabled { opacity: .6; cursor: wait; }

/* Responsivo */
@media (max-width: 960px) {
    .checkout-grid { grid-template-columns: minmax(0, 1fr) 320px; gap: 18px; }
    .checkout-form-card { padding: 26px; }
    .checkout-summary { padding: 22px; }
}
@media (max-width: 780px) {
    .checkout-grid { grid-template-columns: 1fr; }
    .checkout-summary { position: static; }
    .checkout-mobile-summary { display: block; }
    .checkout-main { padding-top: 36px; }
    .checkout-intro { margin-bottom: 26px; }
}
@media (max-width: 480px) {
    .checkout-header { padding: 8px 8px 8px 14px; }
    .checkout-brand { font-size: 17px; }
    .checkout-brand img { width: 28px; height: 28px; }
    .checkout-secure { padding: 6px 11px; font-size: 11px; }
    .checkout-main { width: calc(100% - 32px); }
    .checkout-intro h1 { font-size: 32px; }
    .checkout-intro p { font-size: 15px; }
    .checkout-perks { gap: 8px 14px; font-size: 12px; }
    .checkout-form-card { padding: 22px 16px; border-radius: 18px; }
    .checkout-summary { padding: 20px 16px; border-radius: 18px; }
    .checkout-fields { grid-template-columns: 1fr; gap: 15px; }
    .checkout-field.full { grid-column: auto; }
    .checkout-field input { font-size: 16px; }
    .checkout-steps { gap: 8px; }
    .checkout-steps li { padding: 10px; gap: 8px; }
    .checkout-steps li > span { width: 30px; height: 30px; font-size: 13px; }
    .checkout-steps strong { font-size: 12.5px; }
    .checkout-steps small { font-size: 10px; }
    .checkout-actions { flex-direction: column-reverse; }
    .checkout-card-preview { padding: 20px; }
    .checkout-card-preview > strong { font-size: 16px; letter-spacing: .05em; }
    .checkout-account-recap { align-items: flex-start; }
    .checkout-cart-modal { padding: 20px 16px; }
}
@media (prefers-reduced-motion: reduce) {
    .checkout-spinner { animation: none; }
    .checkout-page *, .checkout-page *::before, .checkout-page *::after { transition-duration: .01ms !important; }
}