:root {
  color-scheme: light;
  --support-bg: #faf9f6;
  --support-surface: #fff;
  --support-ink: #17334b;
  --support-muted: #536678;
  --support-line: #dde4e7;
  --support-blue: #176caf;
  --support-soft: #eaf3fa;
  --support-green: #25834c;
  --support-panel: #ecf4f3;
}
html[data-theme="dark"] {
  color-scheme: dark;
  --support-bg: #101925;
  --support-surface: #182537;
  --support-ink: #edf3fc;
  --support-muted: #b1c0d5;
  --support-line: #33445c;
  --support-blue: #9bcaff;
  --support-soft: #203952;
  --support-green: #8cdaad;
  --support-panel: #192f35;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 30px; }
body { margin: 0; background: var(--support-bg); color: var(--support-ink); font: 16px/1.7 "Segoe UI", Arial, sans-serif; }
a { color: var(--support-blue); text-underline-offset: 4px; }
button, select { font: inherit; }
button { cursor: pointer; }
h1, h2, h3, p, figure { margin-top: 0; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -.035em; text-wrap: balance; overflow-wrap: break-word; }
p { color: var(--support-muted); }
h1 { font-size: clamp(38px, 4.2vw, 62px); font-weight: 720; margin-bottom: 25px; max-width: 17ch; }
h2 { font-size: clamp(27px, 3vw, 38px); margin-bottom: 22px; }
h3 { font-size: 21px; margin-bottom: 14px; }
[hidden] { display: none !important; }
.shell { width: min(1200px, calc(100% - 64px)); margin-inline: auto; }
.skip:not(:focus) { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.skip:focus { display: block; padding: 12px; }
a:focus-visible, button:focus-visible, select:focus-visible, summary:focus-visible { outline: 3px solid var(--support-blue); outline-offset: 5px; }
.site-header { border-bottom: 1px solid var(--support-line); background: var(--support-surface); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 88px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 23px; font-weight: 750; letter-spacing: -.8px; color: var(--support-ink); text-decoration: none; white-space: nowrap; }
.brand img { border-radius: 10px; }
.brand-to { color: var(--support-green); }
.header-controls { display: flex; align-items: center; gap: 20px; }
.header-editor { font-size: 14px; font-weight: 600; text-decoration: none; }
.language-control { display: flex; align-items: center; gap: 9px; font-size: 13px; }
.language-control select { max-width: 160px; padding: 8px; border: 1px solid var(--support-line); border-radius: 10px; background: var(--support-surface); color: var(--support-ink); }
.theme-button { display: grid; place-items: center; width: 39px; height: 39px; flex-shrink: 0; border-radius: 50%; border: 1px solid var(--support-line); color: var(--support-ink); background: var(--support-surface); }
.theme-button svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; }
.hero { display: grid; grid-template-columns: 1fr 1.05fr; align-items: center; gap: 48px; padding-block: 80px 70px; }
.hero-copy, .hero-figure { min-width: 0; }
.eyebrow { font-size: 11px; font-weight: 750; letter-spacing: .13em; line-height: 1.7; color: var(--support-green); margin-bottom: 21px; }
.hero .eyebrow { display: flex; align-items: center; gap: 12px; }
.eyebrow-line { width: 26px; height: 2px; flex-shrink: 0; background: var(--support-green); }
.lead { font-size: 18px; line-height: 1.8; max-width: 49ch; margin-bottom: 27px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; font: inherit; font-weight: 650; line-height: 1.4; text-decoration: none; padding: 16px 23px; border: 1px solid var(--support-blue); border-radius: 12px; text-align: center; transition: box-shadow .15s, transform .15s; }
.button:hover { box-shadow: 0 5px 18px #176caf24; transform: translateY(-1px); }
.button.primary { background: var(--support-blue); color: var(--support-surface); }
html[data-theme="dark"] .button.primary { color: #10213e; }
.button img { object-fit: contain; flex-shrink: 0; }
.voluntary { font-size: 12px; line-height: 1.7; max-width: 48ch; margin-top: 16px; }
.hero-figure { margin: 0; }
.hero-figure>img { display: block; width: 100%; height: auto; border-radius: 26px; }
.hero-figure figcaption { display: flex; justify-content: center; align-items: center; gap: 8px; color: var(--support-muted); font-size: 11px; padding-top: 19px; text-align: center; }
.status-dot { display: inline-block; width: 6px; height: 6px; flex-shrink: 0; border-radius: 50%; background: var(--support-green); }
.uses { padding-block: 18px 76px; border-top: 1px solid var(--support-line); }
.section-intro { max-width: 720px; padding-top: 35px; margin-bottom: 30px; }
.uses-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.use-card { position: relative; padding: 29px; border: 1px solid var(--support-line); background: var(--support-surface); border-radius: 18px; }
.card-icon { display: grid; place-items: center; width: 46px; height: 46px; margin-bottom: 26px; background: var(--support-soft); color: var(--support-blue); border-radius: 12px; }
.card-icon.green { background: #eaf5ed; color: #27834b; }
.card-icon.warm { background: #fff1e8; color: #b76534; }
html[data-theme="dark"] .card-icon.green { background: #203f32; color: #a3dbb7; }
html[data-theme="dark"] .card-icon.warm { background: #483422; color: #f1ba91; }
.card-icon svg { width: 29px; height: 29px; stroke: currentColor; fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.card-number { position: absolute; inset-inline-end: 28px; top: 35px; font: 12px ui-monospace, monospace; color: var(--support-muted); opacity: .65; }
.use-card p { font-size: 14px; margin-bottom: 0; }
.payment-section { padding-bottom: 72px; }
.payment-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; padding: 45px; background: var(--support-panel); border: 1px solid var(--support-line); border-radius: 24px; }
.payment-intro h2 { max-width: 19ch; }
.payment-intro>p:not(.eyebrow) { font-size: 15px; max-width: 43ch; margin-bottom: 16px; }
.payment-heart { object-fit: contain; display: block; }
.payment-action { align-self: center; padding: 28px; border: 1px solid var(--support-line); border-radius: 16px; background: var(--support-surface); min-width: 0; }
.payment-status { font-size: 16px; line-height: 1.75; color: var(--support-ink); }
.amount-picker { border: 0; margin: 0 0 21px; padding: 0; min-width: 0; }
.amount-picker legend { font-size: 14px; font-weight: 650; padding: 0; margin-bottom: 13px; }
.amount-options { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 9px; }
.amount-option { position: relative; min-width: 0; cursor: pointer; }
.amount-option input { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.amount-option span { display: flex; align-items: center; justify-content: center; min-height: 47px; padding: 10px 7px; border: 1px solid var(--support-line); border-radius: 9px; background: var(--support-surface); color: var(--support-ink); font-size: 15px; font-weight: 650; overflow-wrap: anywhere; text-align: center; }
.amount-option input:checked+span { border-color: var(--support-blue); background: var(--support-soft); color: var(--support-blue); box-shadow: inset 0 0 0 1px var(--support-blue); }
.amount-option input:focus-visible+span { outline: 3px solid var(--support-blue); outline-offset: 3px; }
.amount-option.is-custom { grid-column: 1 / -1; }
.amount-option.is-custom span { font-size: 14px; }
.amount-hint { font-size: 12px; margin: 12px 0 0; }
.stripe-button { width: 100%; background: #635bff; border-color: #635bff; color: #fff; }
.payment-details { font-size: 13px; margin: 18px 0; }
.stripe-note { display: flex; align-items: flex-start; gap: 8px; font-size: 11px; margin-bottom: 0; padding-top: 16px; border-top: 1px solid var(--support-line); }
.stripe-note svg { flex-shrink: 0; width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.3; margin-top: 2px; }
.clarity { display: grid; grid-template-columns: 1fr 2.2fr; gap: 30px; padding: 24px 8px 0; font-size: 12px; }
.clarity strong { font-weight: 650; }
.clarity p { margin: 0; }
.faq-section { display: grid; grid-template-columns: 1fr 1.5fr; gap: 70px; padding-bottom: 78px; }
.faq-section h2 { font-size: 29px; }
.faq details { border-bottom: 1px solid var(--support-line); padding: 20px 0; }
.faq details:first-child { padding-top: 0; }
.faq summary { font-weight: 600; font-size: 15px; cursor: pointer; }
.faq details p { font-size: 14px; margin: 15px 0 0; }
.site-footer { display: flex; justify-content: space-between; gap: 30px; border-top: 1px solid var(--support-line); padding-block: 30px 40px; }
.site-footer strong { font-size: 18px; }
.site-footer p { font-size: 12px; max-width: 40ch; margin: 7px 0 0; }
.site-footer nav { display: flex; justify-content: flex-end; align-content: flex-start; flex-wrap: wrap; gap: 12px 22px; font-size: 12px; }
@media(max-width: 1000px) {
  .header-editor { display: none; }
  .hero { gap: 30px; padding-block: 55px; }
  h1 { font-size: 43px; }
  .lead { font-size: 16px; }
  .use-card { padding: 23px; }
  .payment-panel { padding: 30px; gap: 30px; }
  .faq-section { gap: 35px; }
}
@media(max-width: 700px) {
  .shell { width: calc(100% - 32px); }
  .header-inner { min-height: 76px; gap: 10px; }
  .brand { font-size: 18px; gap: 7px; }
  .brand img { width: 30px; height: 30px; }
  .header-controls { gap: 8px; }
  .language-control>span:first-child { display: none; }
  .language-control .language-select-button { width: 130px; min-width: 0; max-width: 130px; }
  .language-control select { max-width: 130px; font-size: 12px; }
  .theme-button { width: 33px; height: 33px; }
  .hero { grid-template-columns: 1fr; padding-block: 44px 39px; gap: 26px; }
  h1 { font-size: clamp(36px, 9vw, 47px); max-width: 20ch; }
  .lead { font-size: 17px; }
  .hero-figure>img { border-radius: 18px; }
  .hero-figure figcaption { padding-top: 12px; }
  .uses { padding-bottom: 44px; }
  .section-intro { padding-top: 30px; }
  .uses-grid { grid-template-columns: 1fr; gap: 12px; }
  .use-card { padding: 24px; }
  .card-icon { margin-bottom: 18px; }
  .payment-panel { grid-template-columns: 1fr; padding: 26px 20px; gap: 18px; border-radius: 19px; }
  .payment-intro h2 { max-width: 22ch; }
  .payment-heart { display: none; }
  .payment-action { padding: 23px 20px; }
  .clarity { grid-template-columns: 1fr; gap: 7px; padding: 18px 4px 0; }
  .payment-section { padding-bottom: 44px; }
  .faq-section { grid-template-columns: 1fr; gap: 12px; padding-bottom: 45px; }
  .site-footer { flex-direction: column; gap: 20px; }
  .site-footer nav { justify-content: flex-start; }
}
@media(max-width: 370px) {
  .header-inner { flex-wrap: wrap; padding-block: 12px; }
  .header-controls { margin-inline-start: auto; }
}
@media(prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}