/*
 * DonateFlow checkout page — self-contained design, same philosophy as
 * donation-panel.css: scoped under .dflow-checkout, uses its own custom
 * properties, never depends on the active theme's classes/variables.
 */

.dflow-checkout {
    --dflow-accent: #0F5F4D;
    --dflow-ink: #142521;
    --dflow-muted: #5B6B67;
    --dflow-border: #E1E8E5;
    --dflow-surface: #FFFFFF;
    --dflow-bg: #F5F8F6;
    --dflow-radius: 16px;
    --dflow-danger: #B32D2E;

    box-sizing: border-box;
    max-width: 960px;
    margin: 0 auto;
    padding: 40px 20px 80px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--dflow-ink);
    background: var(--dflow-bg);
}

.dflow-checkout *,
.dflow-checkout *::before,
.dflow-checkout *::after {
    box-sizing: inherit;
}

.dflow-checkout-empty {
    max-width: 480px;
    margin: 60px auto;
    padding: 32px;
    border-radius: var(--dflow-radius);
    background: var(--dflow-surface);
    text-align: center;
}

.dflow-checkout-back {
    display: inline-block;
    margin-top: 16px;
    color: var(--dflow-accent);
    font-weight: 700;
    text-decoration: none;
}

.dflow-checkout form {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 24px;
    align-items: start;
}

.dflow-checkout-fields {
    padding: 32px;
    border: 1px solid var(--dflow-border);
    border-radius: var(--dflow-radius);
    background: var(--dflow-surface);
    box-shadow: 0 18px 46px rgba(20, 37, 33, 0.06);
}

.dflow-checkout-fields h1 {
    margin: 0 0 24px;
    font-size: 1.5rem;
    font-weight: 700;
}

.dflow-field {
    margin-bottom: 18px;
}

.dflow-field label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--dflow-ink);
}

.dflow-field input {
    width: 100%;
    min-height: 48px;
    padding: 10px 14px;
    border: 2px solid var(--dflow-border);
    border-radius: 10px;
    background: var(--dflow-bg);
    color: var(--dflow-ink);
    font-size: 0.95rem;
    font-family: inherit;
}

.dflow-field input:focus {
    outline: 0;
    border-color: var(--dflow-accent);
    background: var(--dflow-surface);
}

#dflow-payment-element {
    margin: 20px 0;
}

.dflow-checkout-error {
    margin-bottom: 16px;
    padding: 12px 16px;
    border-radius: 10px;
    background: #fdecec;
    color: var(--dflow-danger);
    font-size: 0.88rem;
}

.dflow-checkout-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    min-height: 54px;
    border: 0;
    border-radius: 14px;
    background: var(--dflow-accent);
    color: #FFFFFF;
    font-size: 1.05rem;
    font-weight: 800;
    cursor: pointer;
    transition: filter 0.15s ease;
}

.dflow-checkout-submit:hover:not(:disabled) {
    filter: brightness(1.08);
}

.dflow-checkout-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.dflow-checkout-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-top-color: #fff;
    border-radius: 50%;
    animation: dflow-spin 0.7s linear infinite;
}

@keyframes dflow-spin {
    to { transform: rotate(360deg); }
}

.dflow-checkout-summary {
    padding: 28px;
    border: 1px solid var(--dflow-border);
    border-radius: var(--dflow-radius);
    background: var(--dflow-surface);
    box-shadow: 0 18px 46px rgba(20, 37, 33, 0.06);
}

.dflow-checkout-summary h2 {
    margin: 0 0 18px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dflow-accent);
}

.dflow-summary-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px solid var(--dflow-border);
    font-size: 0.95rem;
}

.dflow-summary-total {
    margin-top: 4px;
    border-bottom: 0;
    font-size: 1.05rem;
}

@media (max-width: 760px) {
    .dflow-checkout form {
        grid-template-columns: 1fr;
    }

    .dflow-checkout-summary {
        order: -1;
    }
}