:root {
  --bg: #f4faff;
  --card: #ffffff;
  --text: #050505;
  --muted: #5c6670;
  --line: #d8e9f7;
  --soft: #eaf6ff;
  --sky: #6ec6ff;
  --ink: #111111;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.10);
  --radius: 18px;
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(110, 198, 255, 0.24), transparent 240px),
    linear-gradient(135deg, rgba(17, 17, 17, 0.035), transparent 360px),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.page-shell {
  width: min(100%, 760px);
  margin: 0 auto;
  padding: 14px;
}

.support-card {
  min-height: calc(100vh - 28px);
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 18px;
  border: 1px solid rgba(110, 198, 255, 0.34);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(17, 17, 17, 0.08);
  border-radius: 13px;
  background:
    linear-gradient(180deg, var(--sky) 0 33.333%, var(--ink) 33.333% 66.666%, #ffffff 66.666% 100%);
  color: #ffffff;
  font-weight: 900;
  letter-spacing: 0;
  box-shadow: 0 10px 24px rgba(110, 198, 255, 0.28);
}

.brand-mark span {
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--ink);
  font-size: 0.84rem;
  line-height: 1;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1rem;
}

.brand small {
  overflow: hidden;
  color: var(--muted);
  font-size: 0.82rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.status-pill {
  flex: 0 0 auto;
  padding: 9px 11px;
  border-radius: 999px;
  background: #eaf6ff;
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 800;
}

.intro {
  padding-top: 4px;
}

.eyebrow,
.label {
  display: block;
  color: var(--sky);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
p {
  margin-top: 0;
}

h1 {
  max-width: 650px;
  margin-bottom: 10px;
  font-size: clamp(2rem, 9vw, 4.2rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.intro p,
.qr-block p,
.fine-print p {
  color: var(--muted);
  line-height: 1.55;
}

.intro p {
  max-width: 590px;
  margin-bottom: 0;
  font-size: 1.02rem;
}

.fund-box {
  display: grid;
  gap: 10px;
}

.field-card {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
}

.field-card.is-primary {
  border-color: rgba(110, 198, 255, 0.54);
  background: var(--soft);
}

.copy-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 8px;
}

.copy-row strong,
.copy-row code {
  min-width: 0;
  color: var(--text);
  font-size: 1.02rem;
  font-weight: 850;
  overflow-wrap: anywhere;
}

.copy-row code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  letter-spacing: 0;
}

.copy-btn {
  flex: 0 0 auto;
  min-height: 42px;
  padding: 0 14px;
  border: 0;
  border-radius: 13px;
  background: var(--sky);
  color: #ffffff;
  cursor: pointer;
  font-weight: 850;
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.info-grid div {
  padding: 14px;
  border-radius: var(--radius);
  background: #f0f8ff;
}

.info-grid span,
.info-grid strong {
  display: block;
}

.info-grid span {
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 0.82rem;
}

.info-grid strong {
  font-size: 0.98rem;
}

.qr-block {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 12px;
  border: 1px dashed rgba(110, 198, 255, 0.48);
  border-radius: var(--radius);
  background: #ffffff;
}

.qr-placeholder {
  width: 88px;
  height: 88px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 16px;
  background:
    linear-gradient(90deg, rgba(110, 198, 255, 0.22) 9px, transparent 9px),
    linear-gradient(rgba(110, 198, 255, 0.22) 9px, transparent 9px),
    #ffffff;
  background-size: 26px 26px;
  color: var(--ink);
  font-weight: 900;
}

.qr-placeholder.has-image {
  background: #ffffff;
  padding: 6px;
}

.qr-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.qr-block p {
  margin-bottom: 0;
  font-size: 0.92rem;
}

.actions {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 10px;
}

.primary-link,
.secondary-link {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  font-weight: 900;
  text-align: center;
}

.primary-link {
  background: #111111;
  color: #ffffff;
}

.secondary-link {
  border: 1px solid var(--line);
  background: #ffffff;
  color: var(--ink);
  cursor: pointer;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: grid;
  place-items: end center;
  padding: 14px;
  background: rgba(0, 0, 0, 0.38);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  position: relative;
  width: min(100%, 520px);
  max-height: min(84vh, 620px);
  overflow: auto;
  padding: 22px;
  border: 1px solid rgba(110, 198, 255, 0.34);
  border-radius: 24px;
  background: #ffffff;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.22);
  transform: translateY(18px);
  transition: transform 0.2s ease;
}

.modal-backdrop.is-open .modal-card {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #f4faff;
  color: var(--text);
  cursor: pointer;
  font-size: 1.45rem;
  line-height: 1;
}

.modal-card h2 {
  margin: 7px 0 10px;
  color: var(--text);
  font-size: 1.18rem;
  line-height: 1.2;
  padding-right: 42px;
}

.modal-card ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
}

.modal-card li {
  color: var(--muted);
  line-height: 1.45;
  font-size: 0.9rem;
}

.fine-print {
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.fine-print p {
  margin-bottom: 6px;
  font-size: 0.84rem;
}

.fine-print a {
  color: var(--ink);
  font-weight: 850;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 18px;
  z-index: 20;
  transform: translateX(-50%) translateY(20px);
  width: min(calc(100% - 28px), 360px);
  padding: 13px 16px;
  border-radius: 16px;
  background: #050505;
  color: #ffffff;
  font-weight: 850;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (min-width: 680px) {
  .page-shell {
    padding: 26px;
  }

  .support-card {
    min-height: auto;
    padding: 30px;
  }

  .fund-box {
    grid-template-columns: 1fr 1.25fr;
  }

  .field-card.is-primary {
    grid-column: span 2;
  }
}

@media (max-width: 390px) {
  .support-card {
    padding: 14px;
    border-radius: 22px;
  }

  .copy-row {
    align-items: stretch;
    flex-direction: column;
  }

  .copy-btn {
    width: 100%;
  }

  .info-grid,
  .qr-block,
  .actions {
    grid-template-columns: 1fr;
  }
}