/* Secure payment form — dark-first, quiet, balanced. */
.esf-form, .esf-fallback, .esf-done {
    max-width: 34rem;
    margin: 0 auto;
}
.esf-form .esf-row { margin: 0 0 1.4rem; }
.esf-form label, .esf-form legend { display: block; font-size: .95rem; margin: 0 0 .35rem; }
.esf-form input[type="text"], .esf-form input[type="email"], .esf-form select {
    width: 100%; padding: .65rem .75rem; border-radius: 6px;
    border: 1px solid var(--esf-border, #3a3f4d);
    background: var(--esf-field, #14161d);
    color: var(--esf-text, #e8eaf0);
    font: inherit;
}
.esf-form .esf-mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; letter-spacing: .04em; }
.esf-form .esf-req { color: var(--esf-accent, #cfd8ea); }
.esf-form .esf-opt { color: var(--esf-muted, #8a90a0); font-size: .85em; }
.esf-cardtype { border: 0; padding: 0; }
.esf-cardtype .esf-seg { display: inline-block; margin-right: .6rem; }
.esf-cardtype .esf-seg input { position: absolute; opacity: 0; }
.esf-cardtype .esf-seg span {
    display: inline-block; padding: .55rem 1.4rem; border-radius: 999px; cursor: pointer;
    border: 1px solid var(--esf-border, #3a3f4d); color: var(--esf-text, #e8eaf0);
}
.esf-cardtype .esf-seg input:checked + span {
    border-color: var(--esf-accent, #cfd8ea);
    background: var(--esf-accent-soft, #232838);
}
.esf-cardtype .esf-seg input:focus-visible + span { outline: 2px solid var(--esf-accent, #cfd8ea); outline-offset: 2px; }
.esf-name { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.esf-expiry fieldset { border: 0; padding: 0; }
.esf-expiry-controls { display: flex; align-items: center; gap: .5rem; max-width: 16rem; }
.esf-expiry-sep { color: var(--esf-muted, #8a90a0); }
.esf-authorize label { display: flex; gap: .6rem; align-items: flex-start; font-size: .95rem; }
.esf-submit {
    padding: .75rem 2.2rem; border-radius: 6px; border: 1px solid var(--esf-accent, #cfd8ea);
    background: transparent; color: var(--esf-text, #e8eaf0); font: inherit; cursor: pointer;
}
.esf-submit:hover { background: var(--esf-accent-soft, #232838); }
.esf-privacy { color: var(--esf-muted, #8a90a0); font-size: .85rem; margin-top: .8rem; }
.esf-hint { font-size: .85rem; display: block; margin-top: .3rem; min-height: 1.1em; }
.esf-hint-ok { color: var(--esf-good, #7ec9a2); }
.esf-hint-warn { color: var(--esf-warn, #d9b06b); }
.esf-hp { position: absolute !important; left: -9999px !important; }
.esf-errors { border: 1px solid var(--esf-bad, #c76a66); border-radius: 6px; padding: .8rem 1rem .8rem 2rem; margin-bottom: 1.4rem; }
.esf-fallback, .esf-done { text-align: center; padding: 2rem 1rem; }
@media (max-width: 480px) { .esf-name { grid-template-columns: 1fr; } }