/* Public registration payment pages (/{slug}/Payment, /{slug}/Pay) and their Success / Failed pages.
   Markup: Views/Conference/_RegistrationForm.cshtml, Success.cshtml, Failed.cshtml.
   Brand colour comes from --brand-color / --brand-text (set per conference in _ConferenceLayout);
   fallbacks match the site default. Surfaces are explicitly light so they read the same
   whatever the theme CSS does around them. */

.sai-pay {
    --pay-brand: var(--brand-color, #4267B2);
    --pay-brand-text: var(--brand-text, #ffffff);
    --pay-text: #1f2937;
    --pay-muted: #6b7280;
    --pay-border: #d9dee5;
    --pay-surface: #ffffff;
    --pay-soft: #f6f8fb;
    max-width: 1060px;
    margin: 0 auto;
    color: var(--pay-text);
    font-size: 15px;
    line-height: 1.5;
}
.sai-pay *, .sai-pay *::before, .sai-pay *::after { box-sizing: border-box; }
.sai-pay a { color: var(--pay-brand); }

/* ---- alerts and notes ---- */
.sai-pay-alert {
    display: flex; gap: 10px; align-items: flex-start;
    padding: 12px 16px; border-radius: 8px; margin-bottom: 18px; font-weight: 500;
}
.sai-pay-alert-error { background: #fdecea; color: #8a1f17; border: 1px solid #f5c2bd; }
.sai-pay-alert-ok { background: #e8f6ee; color: #14532d; border: 1px solid #b7e1c6; margin: 8px 0 0; }
.sai-pay-altnote { color: var(--pay-muted); margin: 0 0 18px; font-size: 14px; }
.sai-pay-altnote i { margin-right: 6px; }

/* ---- cards ---- */
.sai-pay-card {
    background: var(--pay-surface);
    border: 1px solid var(--pay-border);
    border-radius: 12px;
    padding: 22px 24px;
    margin: 0 0 18px;
    min-width: 0;
}
.sai-pay-legend {
    float: none; width: auto; padding: 0; margin: 0 0 16px;
    display: flex; align-items: center; gap: 10px;
    font-size: 17px; font-weight: 700; color: var(--pay-text);
}
.sai-pay-step {
    display: inline-flex; align-items: center; justify-content: center;
    width: 26px; height: 26px; border-radius: 50%;
    background: var(--pay-brand); color: var(--pay-brand-text);
    font-size: 13px; font-weight: 700;
}

/* ---- fields ---- */
.sai-pay-label { display: block; margin: 0 0 6px; font-size: 14px; font-weight: 600; color: var(--pay-text); }
.sai-pay-req { color: #c0392b; margin-left: 2px; }
.sai-pay-opt { color: var(--pay-muted); font-weight: 400; }
.sai-pay-hint { margin-top: 5px; font-size: 12.5px; color: var(--pay-muted); }
.sai-pay input.sai-pay-input {
    display: block; width: 100%; height: 46px;
    padding: 8px 12px; margin: 0;
    font-size: 16px; /* 16px stops iOS zooming into the field */
    color: var(--pay-text); background: #fff;
    border: 1px solid var(--pay-border); border-radius: 8px;
    box-shadow: none; transition: border-color .15s, box-shadow .15s;
}
.sai-pay input.sai-pay-input:focus {
    outline: none; border-color: var(--pay-brand);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--pay-brand) 22%, transparent);
}
.sai-pay input.sai-pay-input:user-invalid { border-color: #c0392b; }
.sai-pay input.sai-pay-upper { text-transform: uppercase; }

/* ---- registration type cards ---- */
.sai-pay-types { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 12px; }
.sai-pay-type { position: relative; display: block; margin: 0; cursor: pointer; }
.sai-pay-type input {
    position: absolute; opacity: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; z-index: 1;
}
.sai-pay-type-body {
    display: flex; flex-direction: column; gap: 4px; height: 100%;
    padding: 14px 40px 14px 16px;
    background: #fff; border: 2px solid var(--pay-border); border-radius: 10px;
    transition: border-color .15s, background .15s, box-shadow .15s;
    position: relative;
}
.sai-pay-type-body::after {
    content: ""; position: absolute; right: 14px; top: 14px;
    width: 20px; height: 20px; border-radius: 50%;
    border: 2px solid var(--pay-border); background: #fff;
    transition: border-color .15s, background .15s;
}
.sai-pay-type:hover .sai-pay-type-body { border-color: color-mix(in srgb, var(--pay-brand) 55%, #fff); }
.sai-pay-type input:checked + .sai-pay-type-body {
    border-color: var(--pay-brand);
    background: color-mix(in srgb, var(--pay-brand) 7%, #fff);
}
.sai-pay-type input:checked + .sai-pay-type-body::after {
    border-color: var(--pay-brand);
    background: radial-gradient(circle, var(--pay-brand) 0 45%, #fff 50%);
}
.sai-pay-type input:focus-visible + .sai-pay-type-body {
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--pay-brand) 30%, transparent);
}
.sai-pay-type-name { font-weight: 600; color: var(--pay-text); }
.sai-pay-type-price { font-size: 18px; font-weight: 700; color: var(--pay-brand); }

/* ---- coupon ---- */
.sai-pay-coupon { margin-top: 20px; padding-top: 18px; border-top: 1px dashed var(--pay-border); }
.sai-pay-coupon-row { display: flex; gap: 10px; }
.sai-pay-coupon-row .sai-pay-input { flex: 1 1 auto; min-width: 0; }
.sai-pay-btn-secondary {
    flex: 0 0 auto; height: 46px; padding: 0 20px;
    font-size: 15px; font-weight: 600; cursor: pointer;
    color: var(--pay-brand); background: #fff;
    border: 1px solid var(--pay-brand); border-radius: 8px;
}
.sai-pay-btn-secondary:hover { background: color-mix(in srgb, var(--pay-brand) 8%, #fff); }
.sai-pay-btn-secondary:disabled { opacity: .6; cursor: default; }

/* ---- pay block ---- */
.sai-pay-turnstile { display: flex; justify-content: center; margin: 0 0 16px; min-height: 65px; }
.sai-pay-total-line {
    display: flex; justify-content: space-between; align-items: baseline; gap: 12px;
    padding: 12px 0; margin-bottom: 14px; border-top: 1px solid var(--pay-border); font-size: 16px;
}
.sai-pay-total-line strong { font-size: 20px; color: var(--pay-text); text-align: right; }
.sai-pay-submit {
    display: flex; align-items: center; justify-content: center; gap: 8px;
    width: 100%; min-height: 52px; padding: 12px 20px;
    font-size: 17px; font-weight: 700; letter-spacing: .01em; cursor: pointer;
    color: var(--pay-brand-text); background: var(--pay-brand);
    border: 0; border-radius: 10px;
    transition: filter .15s, transform .05s;
}
.sai-pay-submit:hover:not(:disabled) { filter: brightness(1.08); }
.sai-pay-submit:active:not(:disabled) { transform: translateY(1px); }
.sai-pay-submit:focus-visible { outline: 3px solid color-mix(in srgb, var(--pay-brand) 40%, transparent); outline-offset: 2px; }
.sai-pay-submit:disabled { opacity: .55; cursor: not-allowed; }
.sai-pay-secure { margin: 14px 0 0; font-size: 12.5px; color: var(--pay-muted); text-align: center; }
.sai-pay-secure i { margin-right: 4px; }

/* ---- order summary ---- */
.sai-pay-summary {
    background: var(--pay-soft); border: 1px solid var(--pay-border); border-radius: 12px;
    padding: 22px 22px 18px;
}
@media (min-width: 992px) { .sai-pay-summary { position: sticky; top: 24px; } }
.sai-pay-summary-title { margin: 0 0 12px; font-size: 13px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--pay-muted); }
.sai-pay-summary-conf { font-size: 17px; font-weight: 700; line-height: 1.3; }
.sai-pay-summary-meta { display: flex; flex-direction: column; gap: 3px; margin-top: 8px; font-size: 14px; color: var(--pay-muted); }
.sai-pay-summary-meta i { width: 16px; text-align: center; margin-right: 4px; }
.sai-pay-summary-list { margin: 16px 0 0; padding: 0; }
.sai-pay-summary-list > div { display: flex; justify-content: space-between; gap: 12px; padding: 9px 0; border-top: 1px solid var(--pay-border); }
.sai-pay-summary-list > div[hidden] { display: none; }
.sai-pay-summary-list dt { font-weight: 500; color: var(--pay-muted); margin: 0; }
.sai-pay-summary-list dd { margin: 0; font-weight: 600; text-align: right; }
.sai-pay-summary-total dt, .sai-pay-summary-total dd { color: var(--pay-text); font-size: 17px; font-weight: 700; }
.sai-pay-summary-discount dd { color: #14532d; }
.sai-pay-summary-note { margin: 12px 0 0; font-size: 13px; color: var(--pay-muted); }

/* ---- result pages (Success / Failed) ---- */
.sai-pay-result { max-width: 640px; margin: 0 auto; text-align: center; }
.sai-pay-result-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 68px; height: 68px; border-radius: 50%; margin: 0 auto 14px; font-size: 32px;
}
.sai-pay-result-icon.ok { background: #e8f6ee; color: #1e8449; }
.sai-pay-result-icon.fail { background: #fdecea; color: #c0392b; }
.sai-pay-result h2 { margin: 0 0 8px; font-size: 26px; font-weight: 700; }
.sai-pay-result-lead { color: var(--pay-muted); font-size: 16px; margin: 0 0 22px; }
.sai-pay-receipt {
    text-align: left; background: #fff; border: 1px solid var(--pay-border);
    border-radius: 12px; overflow: hidden; margin: 0 0 22px;
}
.sai-pay-receipt-head { padding: 10px 18px; background: var(--pay-soft); font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--pay-muted); }
.sai-pay-receipt dl { margin: 0; }
.sai-pay-receipt dl > div { display: flex; justify-content: space-between; gap: 16px; padding: 11px 18px; border-top: 1px solid var(--pay-border); }
.sai-pay-receipt dt { margin: 0; font-weight: 500; color: var(--pay-muted); }
.sai-pay-receipt dd { margin: 0; font-weight: 600; text-align: right; overflow-wrap: anywhere; min-width: 0; }
.sai-pay-steps { text-align: left; list-style: none; margin: 0 0 24px; padding: 0; counter-reset: paystep; }
.sai-pay-steps li {
    position: relative; padding: 0 0 14px 42px; counter-increment: paystep;
}
.sai-pay-steps li::before {
    content: counter(paystep); position: absolute; left: 0; top: -1px;
    width: 28px; height: 28px; border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    background: color-mix(in srgb, var(--pay-brand) 12%, #fff); color: var(--pay-brand);
    font-weight: 700; font-size: 14px;
}
.sai-pay-result-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.sai-pay-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    min-height: 46px; padding: 10px 22px; border-radius: 10px;
    font-size: 16px; font-weight: 600; text-decoration: none; cursor: pointer;
    border: 2px solid var(--pay-brand);
}
.sai-pay-btn-primary { background: var(--pay-brand); color: var(--pay-brand-text) !important; }
.sai-pay-btn-outline { background: #fff; color: var(--pay-brand) !important; }
.sai-pay-btn:hover { filter: brightness(1.06); text-decoration: none; }

/* ---- phones ---- */
@media (max-width: 575px) {
    .sai-pay-card { padding: 18px 16px; }
    .sai-pay-types { grid-template-columns: 1fr; }
    .sai-pay-coupon-row { flex-direction: column; }
    .sai-pay-btn-secondary { width: 100%; }
    .sai-pay-result-actions .sai-pay-btn { width: 100%; }
}