/* Extends the landing page's existing typography, palette and spacing tokens. */
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--forest); outline-offset: 5px; }
.checkout-section {
    width: min(calc(100% - 48px), 1280px);
    margin: 0 auto;
    padding: var(--space-6) 0 var(--space-7);
    border-top: 1px solid var(--line);
    scroll-margin-top: 24px;
    --motion-press: 160ms;
    --motion-layout: 200ms;
}
.checkout-section:focus { outline: none; }
.checkout-heading { display: flex; align-items: end; justify-content: space-between; gap: 3rem; margin-bottom: 3.5rem; }
.checkout-heading h2 { margin: 0; font-size: clamp(2.7rem, 5vw, 4.5rem); line-height: 1.03; letter-spacing: -0.065em; }
.checkout-heading > p { max-width: 300px; margin: 0 0 0.3rem; color: var(--muted); font-size: 1.05rem; line-height: 1.6; }
.checkout-layout { display: grid; grid-template-columns: minmax(0, 1.8fr) minmax(330px, 1fr); gap: clamp(2rem, 4vw, 4rem); align-items: start; }
.checkout-product { display: flex; align-items: center; gap: 1.5rem; margin-bottom: 2.4rem; }
.checkout-product h3 { margin: 0 0 0.45rem; font-size: 1.25rem; letter-spacing: -0.035em; }
.checkout-product p { margin: 0; font-size: 0.88rem; line-height: 1.5; color: var(--muted); }
.checkout-card-art { width: 106px; aspect-ratio: 1.6; flex-shrink: 0; display: grid; place-items: center; background: var(--ink); color: var(--white); border-radius: 12px; box-shadow: 0 3px 0 #353533, 0 10px 22px #08080814; transform: rotate(-5deg); }
.offer-legend { font-size: 0.92rem; margin: 0 0 1.1rem; font-weight: 600; }
.offer-options { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.offer-option { min-width: 0; display: flex; flex-direction: column; text-align: left; padding: 20px 16px; border: 1px solid var(--line); border-radius: 22px; background: transparent; cursor: pointer; transition: transform var(--motion-press) var(--ease-out), border-color var(--motion-layout) ease, background var(--motion-layout) ease, box-shadow var(--motion-layout) ease; }

.offer-option[aria-checked="true"] { background: var(--white); border-color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); }
.offer-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; min-height: 26px; margin-bottom: 25px; }
.offer-badge { font-size: 0.68rem; font-weight: 700; line-height: 1.4; background: var(--surface); color: var(--ink-soft); padding: 5px 8px; border-radius: 999px; }
.offer-option[data-quantity="1"] .offer-badge { background: transparent; padding-left: 0; color: var(--muted); }
.offer-option[data-quantity="3"] .offer-badge { background: #e6efeb; color: #245e59; }
.offer-radio { width: 18px; height: 18px; flex-shrink: 0; border: 1px solid #90908a; border-radius: 50%; display: grid; place-items: center; }
.offer-option[aria-checked="true"] .offer-radio { border-color: var(--ink); }
.offer-radio::after { content: ''; width: 10px; height: 10px; border-radius: 50%; background: var(--ink); opacity: 0; transform: scale(0.5); transition: opacity var(--motion-press) var(--ease-out), transform var(--motion-layout) var(--ease-out); }
.offer-option[aria-checked="true"] .offer-radio::after { opacity: 1; transform: scale(1); }
.offer-name { font-weight: 600; font-size: 0.94rem; margin-bottom: 12px; }
.offer-price { font-size: clamp(1.3rem, 1.9vw, 1.7rem); font-weight: 700; font-variant-numeric: tabular-nums; letter-spacing: -0.045em; white-space: nowrap; }
.offer-total-label { font-family: var(--font-mono); font-size: 0.6rem; color: var(--muted); margin: 5px 0 20px; text-transform: uppercase; letter-spacing: 0.04em; }
.offer-shipping { min-height: 2.8em; font-size: 0.75rem; line-height: 1.4; color: var(--ink-soft); }
.offer-saving { min-height: 1.4em; margin-top: 10px; font-size: 0.73rem; font-weight: 700; line-height: 1.4; color: #245e59; }
.checkout-shipping-note { margin: 1.6rem 0 0.75rem; max-width: 520px; color: var(--ink-soft); font-size: 0.85rem; line-height: 1.6; }
.checkout-policy { max-width: 540px; margin: 0; color: var(--muted); font-size: 0.75rem; line-height: 1.6; }
.checkout-policy a { display: inline-flex; align-items: center; min-height: 44px; text-underline-offset: 4px; }
.order-summary { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); }
.summary-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.summary-heading h3 { font-size: 1.15rem; margin: 0; letter-spacing: -0.03em; }
.summary-count { font-family: var(--font-mono); font-size: 0.66rem; color: var(--muted); }
.summary-product { margin: 0.9rem 0 1rem; color: var(--muted); font-size: 0.85rem; }
.summary-compatibility { display: grid; gap: 3px; margin: 0 0 1.6rem; padding-left: 12px; border-left: 2px solid var(--ink); font-size: 0.8rem; line-height: 1.5; }
.summary-compatibility strong { color: var(--ink); font-weight: 700; }
.summary-compatibility span { color: var(--ink-soft); }
.summary-lines { display: grid; gap: 1rem; margin: 0 0 1.6rem; font-size: 0.85rem; }
.summary-lines > div { display: flex; justify-content: space-between; gap: 12px; }
.summary-lines dt { color: var(--muted); }
.summary-lines dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.summary-total { border-top: 1px solid var(--line); padding-top: 1.3rem; display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.summary-total > span { font-weight: 600; }
.summary-total small { display: block; font-family: var(--font-mono); font-size: 0.6rem; font-weight: 500; color: var(--muted); margin-top: 4px; }
.summary-total strong { font-size: clamp(1.7rem, 2.6vw, 2.3rem); letter-spacing: -0.05em; font-variant-numeric: tabular-nums; white-space: nowrap; }
.checkout-notice { margin: 1.2rem 0 0.8rem; color: var(--ink-soft); font-size: 0.76rem; line-height: 1.5; }
.payment-button { width: 100%; gap: 1rem; cursor: pointer; min-height: 56px; }
.payment-button:disabled { color: #64645e; background: var(--surface); box-shadow: none; border-color: var(--line); cursor: not-allowed; transform: none; }
.checkout-trust { margin: 1rem auto 0; text-align: center; color: var(--muted); font-size: 0.71rem; line-height: 1.65; max-width: 280px; }
.checkout-whatsapp { display: flex; align-items: center; justify-content: center; gap: 6px; min-height: 44px; margin-top: 1.1rem; text-align: center; font-size: 0.8rem; text-underline-offset: 4px; text-decoration-color: var(--line); }
/* Payment result stays neutral: it is never a receipt or an approval signal. */
.payment-result { width: min(calc(100% - 48px), 660px); margin: clamp(3rem, 8vw, 7rem) auto; }
.payment-result h1 { font-size: clamp(2.5rem, 6vw, 4rem); line-height: 1.08; letter-spacing: -0.06em; }
.payment-result .result-mark { margin-bottom: 2.3rem; }
.payment-result p { line-height: 1.7; color: var(--ink-soft); }
.result-reference { padding: 1.3rem; border: 1px solid var(--line); border-radius: var(--radius-sm); margin: 2rem 0; }
.result-reference dt { color: var(--muted); font-size: 0.8rem; margin-bottom: 0.5rem; }
.result-reference dd { margin: 0; font-family: var(--font-mono); font-size: 0.85rem; overflow-wrap: anywhere; }
.result-actions { display: flex; align-items: center; gap: 1.4rem; flex-wrap: wrap; }
.result-actions a { min-height: 44px; display: inline-flex; align-items: center; }
.payment-result > .text-link { min-height: 44px; display: inline-flex; align-items: center; }
.result-help { margin-top: 2rem; font-size: 0.85rem; }
.brand { min-height: 44px; display: inline-flex; align-items: center; }
@media (max-width: 1050px) {
    .checkout-layout { grid-template-columns: minmax(0, 1fr) minmax(300px, 0.8fr); gap: 24px; }
    .offer-options { grid-template-columns: 1fr; }
    .offer-option { display: grid; grid-template-columns: minmax(0, 1fr) auto; column-gap: 12px; padding: 18px 20px; }
    .offer-top { grid-column: 1 / -1; margin: 0 0 12px; }
    .offer-name { margin: 0; align-self: center; }
    .offer-price { grid-column: 2; font-size: 1.6rem; text-align: right; }
    .offer-total-label { grid-column: 2; text-align: right; margin: 3px 0 0; }
    .offer-shipping { grid-row: 3; grid-column: 1; min-height: 0; margin-top: 3px; }
    .offer-saving { grid-column: 1 / -1; min-height: 0; margin-top: 8px; }
}
@media (max-width: 720px) {
    .checkout-section, .payment-result { width: calc(100% - 30px); }
    .checkout-heading { display: block; margin-bottom: 2.2rem; }
    .checkout-heading > p { margin: 1.4rem 0 0; max-width: 320px; }
    .checkout-layout { grid-template-columns: minmax(0, 1fr); gap: 24px; }
    .checkout-product { gap: 1rem; margin-bottom: 2rem; }
    .checkout-card-art { width: 84px; }
    .checkout-product p { font-size: 0.8rem; }
    .order-summary { padding: 24px; border-radius: 26px; }
    .summary-total strong { font-size: 2rem; }
    .site-nav .nav-cta { min-height: 44px; }
    .result-actions { align-items: stretch; flex-direction: column; gap: 1rem; }
}
/* Fine-pointer hover stays off touch devices; keyboard actions remain immediate. */
@media (hover: hover) and (pointer: fine) {
    .offer-option:hover { transform: translateY(-2px); border-color: var(--ink-soft); }
    .checkout-whatsapp span { transition: transform var(--motion-press) var(--ease-out); }
    .checkout-whatsapp:hover span { transform: translate(2px, -2px); }
}
.checkout-section:not([data-motion="instant"]) .offer-option:active { transform: scale(0.99); }
.checkout-section[data-motion="instant"] .offer-option,
.checkout-section[data-motion="instant"] .offer-radio::after { transition: none; }
.checkout-section[data-motion="instant"] .offer-option { transform: none; }
@media (prefers-reduced-motion: reduce) {
    .offer-option, .offer-radio::after, .checkout-whatsapp span { transition: none; }
    .checkout-section .offer-option, .checkout-whatsapp:hover span { transform: none !important; }
}
/* Purchase conditions share the product's quiet editorial rhythm. */
.checkout-details { margin: 1.8rem 0 0; }
.checkout-details > div { display: grid; grid-template-columns: 130px minmax(0, 1fr); gap: 16px; padding: 1rem 0; border-top: 1px solid var(--line); font-size: 0.8rem; line-height: 1.65; }
.checkout-details dt { font-weight: 700; }
.checkout-details dd { margin: 0; color: var(--ink-soft); }
.checkout-policy a { gap: 10px; }
.checkout-availability { margin: 1.1rem 0; font-family: var(--font-mono); font-size: 0.65rem; color: var(--muted); }
.checkout-consent { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 2px; align-items: start; }
.checkout-consent input { appearance: none; position: relative; width: 44px; height: 44px; margin: -5px 0 0; background: transparent; border: 0; cursor: pointer; }
.checkout-consent input::before { content: ''; position: absolute; inset: 12px; border: 1px solid #85857e; border-radius: 5px; }
.checkout-consent input:checked::before { background: var(--ink); border-color: var(--ink); }
.checkout-consent input:checked::after { content: ''; position: absolute; left: 19px; top: 16px; width: 5px; height: 9px; border: solid white; border-width: 0 2px 2px 0; transform: rotate(45deg); }
.checkout-consent label { padding: 3px 0; min-height: 44px; font-size: 0.73rem; line-height: 1.9; color: var(--ink-soft); cursor: pointer; }
.checkout-consent a { text-underline-offset: 3px; }
@media (max-width: 380px) {
    .checkout-details > div { grid-template-columns: 1fr; gap: 4px; }
}