:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --surface-soft: #f7f7f7;
  --surface-tint: #fff1f3;
  --text: #000000;
  --text-soft: #4b4b4b;
  --border: #ececec;
  --border-strong: #1a1a1a;
  --accent: #fd152f;
  --accent-dark: #da1028;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Open Sans", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(253, 21, 47, 0.06), transparent 30%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  color: var(--text);
}

.loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(255, 255, 255, 0.76);
  backdrop-filter: blur(6px);
}

.loading-dialog {
  width: min(100%, 460px);
  padding: 28px;
  text-align: center;
}

.loading-copy {
  margin-bottom: 0;
  color: var(--text-soft);
  line-height: 1.7;
}

.loading-spinner {
  width: 52px;
  height: 52px;
  margin: 0 auto 18px;
  border-radius: 999px;
  border: 4px solid rgba(253, 21, 47, 0.14);
  border-top-color: var(--accent);
  animation: loading-spin 0.9s linear infinite;
}

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

.page {
  width: min(100%, 1400px);
  min-height: 100vh;
  margin: 0 auto;
  padding: 24px;
}

.page-header {
  display: grid;
  grid-template-columns: minmax(220px, 340px) minmax(0, 1fr);
  align-items: center;
  gap: 32px;
  padding: 28px 32px;
  margin-bottom: 24px;
}

.header-brand {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.brand-link {
  display: inline-flex;
  align-items: center;
}

.header-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 14px;
  font-size: clamp(2.25rem, 5vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

h2 {
  margin-bottom: 8px;
  font-size: clamp(1.8rem, 3vw, 2.25rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

h3 {
  margin-bottom: 6px;
  font-size: 1.4rem;
  line-height: 1.2;
}

.hero-text,
.section-copy,
.payment-details-copy,
.subtitle,
.payment-note,
.summary-helper,
.brand-tagline,
.method-note,
.mandate-copy {
  color: var(--text-soft);
}

.hero-text {
  margin-bottom: 0;
  max-width: 620px;
  font-size: 1.05rem;
  line-height: 1.75;
}

.brand-logo {
  display: block;
  width: auto;
  max-width: 100%;
  height: 190px;
  margin-bottom: 0;
  object-fit: contain;
}

.payment-summary {
  padding: 28px 32px;
  margin-bottom: 24px;
}

.empty-state {
  padding: 28px 32px;
  margin-bottom: 24px;
}

.due-date-alert {
  padding: 24px 32px;
  margin-bottom: 24px;
  border-color: rgba(253, 21, 47, 0.18);
}

.due-date-alert-warning {
  background: #fff8f0;
  border-color: #ffd9b0;
}

.due-date-alert-warning .eyebrow {
  color: #9d4f00;
}

.due-date-alert-overdue {
  background: #fff1f3;
  border-color: rgba(253, 21, 47, 0.24);
}

.due-date-alert-overdue .eyebrow {
  color: #a30f24;
}

.page-status-banner {
  margin-bottom: 24px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.section-heading-inline {
  margin-bottom: 18px;
}

.summary-pill,
.status-pill,
.method-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 700;
  white-space: nowrap;
}

.summary-pill,
.status-pill {
  background: var(--surface-soft);
  border: 1px solid var(--border);
  color: var(--text);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.summary-item {
  padding: 18px;
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 18px;
}

.summary-item strong {
  display: block;
  font-size: 1.05rem;
}

.summary-item-strong {
  background: var(--surface-tint);
  border-color: rgba(253, 21, 47, 0.15);
}

.summary-item-strong strong {
  font-size: 1.2rem;
}

.summary-helper {
  margin: 8px 0 0;
  font-size: 0.88rem;
  line-height: 1.5;
}

.label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #6a6a6a;
}

.methods-section {
  margin-bottom: 24px;
}

.options-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.payment-card {
  position: relative;
  padding: 28px;
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.payment-card:hover {
  transform: translateY(-2px);
}

.payment-card.is-selected {
  border-color: rgba(253, 21, 47, 0.35);
  box-shadow: 0 22px 52px rgba(253, 21, 47, 0.12);
}

.payment-card.is-selected .method-accent {
  opacity: 1;
}

.method-accent {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--accent);
  opacity: 0.15;
  transition: opacity 0.2s ease;
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.card-brand-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.card-brand-logo {
  height: 18px;
  width: auto;
  object-fit: contain;
}

.card-brand-logo-visa {
  height: auto;
  width: 54px;
}

.method-kicker {
  margin: 0 0 8px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.method-badge {
  background: #111111;
  color: #ffffff;
}

.method-badge-soft {
  background: var(--surface-tint);
  color: var(--accent);
}

.pricing-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.pricing-row strong {
  font-size: 1.02rem;
  text-align: right;
}

.total-row {
  margin-top: 8px;
  border-bottom: 0;
}

.total-row strong {
  font-size: 1.8rem;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.method-note {
  margin: 10px 0 0;
  font-size: 0.94rem;
  line-height: 1.65;
}

.action-button {
  width: 100%;
  margin-top: 22px;
  padding: 15px 18px;
  border: 1px solid transparent;
  border-radius: 16px;
  font: inherit;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    background-color 0.18s ease,
    border-color 0.18s ease;
}

.action-button:hover {
  transform: translateY(-1px);
}

.action-button:active {
  transform: translateY(0);
}

.action-button:disabled {
  opacity: 0.7;
  cursor: wait;
  transform: none;
}

.primary-button {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 16px 30px rgba(253, 21, 47, 0.18);
}

.primary-button:hover {
  background: var(--accent-dark);
}

.secondary-button {
  background: #ffffff;
  color: var(--text);
  border-color: #d7d7d7;
}

.secondary-button:hover {
  border-color: var(--text);
  background: #fcfcfc;
}

.payment-details {
  padding: 28px 32px;
  margin-bottom: 24px;
}

.payment-details-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.payment-method-pill {
  background: var(--surface-tint);
  border-color: rgba(253, 21, 47, 0.15);
  color: var(--accent);
}

.status-banner {
  margin-bottom: 16px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid transparent;
  font-weight: 600;
  line-height: 1.5;
}

.status-info {
  background: var(--surface-soft);
  border-color: var(--border);
  color: var(--text);
}

.status-success {
  background: #f3fbf5;
  border-color: #cfead6;
  color: #155c2f;
}

.status-warning {
  background: #fff8f0;
  border-color: #ffd9b0;
  color: #9d4f00;
}

.status-error {
  background: var(--surface-tint);
  border-color: rgba(253, 21, 47, 0.2);
  color: #a30f24;
}

.security-note {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  padding: 14px 16px;
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 16px;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.security-note strong {
  color: var(--text);
}

.payment-form-shell {
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 22px;
}

.payment-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.form-grid-single {
  grid-template-columns: 1fr;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
}

.text-input {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid #d9d9d9;
  border-radius: 14px;
  background: #ffffff;
  color: var(--text);
  font: inherit;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.text-input:focus {
  outline: 0;
  border-color: rgba(253, 21, 47, 0.45);
  box-shadow: 0 0 0 4px rgba(253, 21, 47, 0.08);
}

.stripe-element {
  padding: 14px;
  min-height: 52px;
  background: #ffffff;
  border: 1px solid #d9d9d9;
  border-radius: 14px;
}

.mandate-box {
  padding: 18px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 16px;
}

.mandate-title {
  margin-bottom: 10px;
  font-weight: 700;
}

.mandate-copy {
  margin-bottom: 14px;
  line-height: 1.7;
}

.checkbox-field {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  line-height: 1.6;
}

.checkbox-field input {
  margin-top: 2px;
  accent-color: var(--accent);
}

.payment-note {
  margin-bottom: 0;
  font-size: 0.94rem;
  line-height: 1.65;
}

.is-hidden {
  display: none;
}

.result-modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.result-modal.is-hidden {
  display: none;
}

.result-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(4px);
}

.result-modal-dialog {
  position: relative;
  width: min(100%, 560px);
  padding: 28px;
  border-radius: 28px;
  z-index: 1;
}

.result-modal-copy {
  margin-bottom: 20px;
  color: var(--text-soft);
  line-height: 1.7;
}

.result-modal-reference,
.result-modal-reason,
.result-modal-receipt {
  padding: 18px;
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 18px;
}

.result-modal-reference strong,
.result-modal-reason strong {
  display: block;
  font-size: 1.05rem;
  word-break: break-word;
}

.result-modal-reason {
  margin-top: 14px;
}

.result-modal-reference {
  margin-top: 14px;
}

.result-modal-receipt {
  background: linear-gradient(135deg, rgba(15, 76, 129, 0.12), rgba(14, 131, 136, 0.08));
  border-color: rgba(15, 76, 129, 0.18);
}

.receipt-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin-top: 8px;
  padding: 14px 18px;
  border-radius: 14px;
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 14px 30px rgba(253, 21, 47, 0.22);
  transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}

.receipt-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 36px rgba(253, 21, 47, 0.28);
  filter: saturate(1.02);
}

.receipt-link:focus-visible {
  outline: 3px solid rgba(253, 21, 47, 0.2);
  outline-offset: 3px;
}

.result-modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  border: 0;
  background: transparent;
  color: var(--text-soft);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.result-modal-close:hover {
  color: var(--text);
}

.result-modal-success .result-modal-dialog {
  box-shadow: 0 24px 70px rgba(21, 92, 47, 0.12);
}

.result-modal-success .eyebrow {
  color: #155c2f;
}

.result-modal-error .eyebrow {
  color: #a30f24;
}

.result-modal-warning .eyebrow {
  color: #9d4f00;
}

.debug-panel {
  padding: 28px 32px;
  margin-bottom: 24px;
}

.debug-details {
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--surface-soft);
  overflow: hidden;
}

.debug-summary {
  padding: 18px 20px;
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

.debug-summary::-webkit-details-marker {
  display: none;
}

.debug-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 0 20px 20px;
}

.debug-item {
  padding: 16px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 16px;
}

.debug-item strong {
  display: block;
  font-size: 0.98rem;
  line-height: 1.5;
  word-break: break-word;
}

.debug-item-wide {
  grid-column: 1 / -1;
}

.debug-json-block {
  padding: 0 20px 20px;
}

.debug-json-block pre {
  margin: 0;
  padding: 18px;
  background: #111111;
  color: #f6f6f6;
  border-radius: 16px;
  overflow: auto;
  font-size: 0.88rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}

.page-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
  gap: 24px;
  padding: 20px 6px 0;
  color: var(--text-soft);
  font-size: 0.82rem;
}

.page-footer p {
  margin: 0;
}

.footer-main {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-processor {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-contact,
.footer-copyright,
.footer-disclaimer {
  line-height: 1.6;
}

.footer-copyright {
  font-weight: 700;
  color: var(--text);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  line-height: 1.6;
}

.footer-processor-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #6a6a6a;
}

.footer-processor-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.footer-stripe-logo {
  height: 16px;
  width: auto;
  object-fit: contain;
}

.footer-trademark {
  align-self: end;
  font-size: 0.74rem;
  line-height: 1.5;
  text-align: left;
}

a {
  color: var(--accent);
}

@media (max-width: 900px) {
  .page-header,
  .summary-grid,
  .options-grid,
  .form-grid,
  .debug-grid,
  .page-footer {
    grid-template-columns: 1fr;
  }

  .page-header,
  .page-footer {
    display: grid;
  }

  .header-brand {
    justify-content: center;
  }

  .header-copy {
    align-items: flex-start;
  }

  .footer-trademark {
    text-align: left;
  }
}

@media (max-width: 700px) {
  .page {
    padding: 16px;
  }

  .page-header,
  .payment-summary,
  .payment-card,
  .payment-details {
    padding: 22px 20px;
  }

  .summary-header,
  .section-heading,
  .payment-details-header,
  .card-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .pricing-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .pricing-row strong {
    text-align: left;
  }

  .security-note {
    flex-direction: column;
    align-items: flex-start;
  }

  .brand-logo {
    height: 140px;
  }

  .result-modal {
    padding: 16px;
  }

  .result-modal-dialog {
    padding: 22px 20px;
  }
}