* { box-sizing: border-box; }
html { min-height: 100%; }
body { margin: 0; background: var(--body-background); color: var(--text); font-family: var(--font-body); font-size: var(--base-size); line-height: var(--line-height); }
body, button, a { -webkit-font-smoothing: antialiased; }
a { color: inherit; }
.payment-page { width: min(var(--content-width), calc(100% - 40px)); margin: 0 auto; padding: 28px 0 34px; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 0 0 30px; }
.brand-mark { display: inline-flex; align-items: center; gap: 9px; color: var(--text); font-weight: 800; letter-spacing: .04em; text-transform: lowercase; }
.brand-mark--image { flex: 0 0 auto; width: var(--logo-width); height: var(--logo-height); min-width: 0; }
.brand-mark__dot { width: 12px; height: 12px; border-radius: 50%; background: var(--primary); box-shadow: 0 0 0 5px color-mix(in srgb, var(--primary) 15%, transparent); }
.brand-logo { display: block; width: 100%; height: 100%; max-width: none; max-height: none; object-fit: fill; }
.secure-note { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: .82rem; font-weight: 700; }
.lock-icon { font-size: .95rem; }
.urgent-alert { display: flex; gap: 15px; align-items: flex-start; padding: 18px 20px; margin-bottom: 52px; border: 1px solid var(--alert-border); background: var(--alert-background); color: var(--alert-text); border-radius: var(--radius); }
.urgent-alert__icon { flex: 0 0 28px; display: grid; place-items: center; width: 28px; height: 28px; border: 2px solid currentColor; border-radius: 50%; font-weight: 800; }
.urgent-alert__content { min-width: 0; }
.urgent-alert p { margin: 0; }
.urgent-alert__title { font-weight: 800; }
.urgent-alert__copy { margin-top: 3px !important; font-size: .92rem; }
.urgent-alert__amount { display: flex; align-items: center; gap: 10px; margin-top: 12px; font-size: .77rem; font-weight: 700; }
.urgent-alert__amount strong { color: var(--alert-accent); font-size: 1rem; }
.urgent-alert.alert-layout-compact { gap: 10px; padding: 12px 15px; margin-bottom: 30px; }
.urgent-alert.alert-layout-compact .urgent-alert__icon { flex-basis: 24px; width: 24px; height: 24px; font-size: .82rem; }
.urgent-alert.alert-layout-compact .urgent-alert__amount { margin-top: 8px; }
.urgent-alert.alert-layout-emphasis { padding: 24px; border-width: 2px; box-shadow: 0 12px 28px color-mix(in srgb, var(--alert-border) 25%, transparent); }
.urgent-alert.alert-layout-emphasis .urgent-alert__title { font-size: 1.05rem; }
.urgent-alert.alert-layout-minimal { gap: 10px; padding: 12px 0; border-width: 0 0 1px; border-radius: 0; background: transparent; }
.urgent-alert.alert-layout-minimal .urgent-alert__icon { flex-basis: auto; width: auto; height: auto; border: 0; border-radius: 0; }
.page-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(340px, 470px); align-items: center; gap: clamp(42px, 8vw, 120px); }
.intro-column { padding: 20px 0; }
.intro-kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: .76rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--primary); box-shadow: 0 0 0 5px color-mix(in srgb, var(--primary) 16%, transparent); }
h1 { max-width: 700px; margin: 18px 0 22px; color: var(--text); font-family: var(--font-heading); font-size: var(--heading-size); font-weight: 800; letter-spacing: -.065em; line-height: .98; }
h1 em { color: var(--primary); font-style: normal; }
.intro-copy { max-width: 590px; margin: 0; color: var(--muted); font-size: 1rem; }
.sender-row { display: flex; align-items: center; gap: 12px; margin-top: 38px; }
.sender-avatar { display: grid; place-items: center; overflow: hidden; width: var(--sender-avatar-width); height: var(--sender-avatar-height); border-radius: 50%; background: var(--sender-avatar-background); color: var(--sender-avatar-text); font-size: .77rem; font-weight: 800; }
.sender-avatar > span { display: block; color: inherit; font-size: inherit; }
.sender-avatar img { display: block; width: 100%; height: 100%; object-fit: cover; }
.sender-row span, .invoice-person span, .amount-block span, .invoice-date span { display: block; color: var(--muted); font-size: .78rem; }
.sender-row .sender-avatar > span { display: block; color: inherit; font-size: inherit; }
.sender-row strong, .invoice-person strong { display: block; margin-top: 2px; font-size: .9rem; }
.trust-row { display: flex; align-items: center; gap: 10px; max-width: 420px; margin-top: 28px; color: var(--muted); font-size: .8rem; }
.trust-icon { display: grid; place-items: center; width: 21px; height: 21px; border: 1px solid var(--primary); border-radius: 50%; color: var(--primary); font-size: .75rem; font-weight: 900; }
.invoice-card { padding: 30px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); }
.invoice-card__top, .invoice-label, .invoice-person, .page-footer, .details-panel summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.invoice-label { justify-content: flex-start; color: var(--text); font-size: .82rem; font-weight: 800; }
.document-icon { color: var(--primary); font-size: 1.15rem; }
.due-badge { padding: 5px 9px; border-radius: 999px; background: var(--accent); color: var(--text); font-size: .7rem; font-weight: 800; white-space: nowrap; }
.amount-block { margin-top: 30px; }
.amount-block strong { display: block; margin-top: 2px; color: var(--primary-dark); font-family: var(--font-heading); font-size: clamp(2.25rem, 5vw, 3.6rem); letter-spacing: -.07em; line-height: 1; }
.invoice-rule { height: 1px; margin: 28px 0 22px; background: var(--border); }
.invoice-person { align-items: flex-end; }
.invoice-date { text-align: right; }
.payment-photo { width: var(--hero-image-width); height: var(--hero-image-height); overflow: hidden; margin-top: 22px; border-radius: calc(var(--radius) - 4px); }
.payment-photo img { display: block; width: 100%; height: 100%; object-fit: cover; }
.ideal-button { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; min-height: var(--button-height); margin-top: 26px; padding: 12px 60px 12px 18px; border-radius: var(--button-radius); background: var(--primary); box-shadow: 0 4px 0 var(--primary-dark), 0 12px 22px color-mix(in srgb, var(--primary) 22%, transparent); color: var(--button-text); font-size: .88rem; font-weight: 800; text-decoration: none; transition: transform .18s ease, background .18s ease, box-shadow .18s ease; }
.ideal-button:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 3px 0 var(--primary-dark), 0 15px 25px color-mix(in srgb, var(--primary) 28%, transparent); }
.ideal-button:active { transform: translateY(2px); box-shadow: 0 1px 0 var(--primary-dark); }
.ideal-logo { display: block; width: var(--button-icon-width); height: var(--button-icon-height); border-radius: 3px; object-fit: contain; }
.arrow-icon { position: absolute; top: 50%; right: 22px; font-size: 1.35rem; line-height: 1; transform: translateY(-50%); }
.details-panel { margin-top: 20px; border-top: 1px solid var(--border); color: var(--muted); font-size: .8rem; }
.details-panel summary { padding: 17px 0 0; cursor: pointer; list-style: none; }
.details-panel summary::-webkit-details-marker { display: none; }
.chevron { font-size: 1.1rem; transition: transform .18s ease; }
.details-panel[open] .chevron { transform: rotate(180deg); }
.details-panel p { margin: 14px 0 0; }
.page-footer { justify-content: center; flex-wrap: wrap; margin-top: 60px; color: var(--muted); font-size: .78rem; }
.page-footer a { color: var(--primary-dark); font-weight: 800; text-decoration: none; }
.page-footer a:hover { text-decoration: underline; }
.footer-separator { color: var(--border); }
@media (max-width: 850px) { .page-grid { grid-template-columns: 1fr; gap: 30px; } .invoice-card { max-width: 560px; } .urgent-alert { margin-bottom: 32px; } }
@media (max-width: 560px) { .payment-page { width: min(100% - 28px, var(--content-width)); padding-top: 18px; } .topbar { align-items: flex-start; flex-direction: column; padding-bottom: 22px; } .secure-note { font-size: .75rem; } .urgent-alert { margin-bottom: 28px; padding: 15px; } h1 { font-size: clamp(2.6rem, 14vw, 4rem); } .invoice-card { padding: 22px; } .page-footer { align-items: flex-start; flex-direction: column; gap: 7px; margin-top: 36px; } .footer-separator { display: none; } }