:root {
  color-scheme: dark;
  --bg: #080a0f;
  --panel: #11151d;
  --panel-soft: #171c25;
  --line: #404957;
  --text: #f0f2f3;
  --muted: #919caa;
  --accent: #ffc247;
  --accent-deep: #8a4b08;
  --warning: #ff6b51;
  font-family: "Cascadia Mono", "Segoe UI Mono", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    linear-gradient(rgba(255, 194, 71, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 194, 71, 0.025) 1px, transparent 1px),
    radial-gradient(circle at 50% -20%, #252b36 0, var(--bg) 58%);
  background-size: 24px 24px, 24px 24px, auto;
}

.donation-page {
  width: min(100% - 32px, 820px);
  margin: 0 auto;
  padding: clamp(28px, 6vw, 72px) 0;
}

.back-link {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.back-link:hover,
.back-link:focus-visible {
  color: var(--accent);
}

.donation-card {
  padding: clamp(22px, 5vw, 48px);
  border: 1px solid var(--line);
  background: rgba(17, 21, 29, 0.96);
  box-shadow: 12px 12px 0 rgba(0, 0, 0, 0.28);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-family: "Arial Black", Impact, sans-serif;
  font-size: clamp(38px, 8vw, 72px);
  line-height: 0.95;
  letter-spacing: -0.045em;
  text-transform: uppercase;
}

.donation-heading > p:last-child {
  margin: 18px 0 0;
  color: var(--muted);
  font-family: "Segoe UI", sans-serif;
  line-height: 1.55;
}

.amount-panel {
  margin-top: 30px;
  padding: 22px;
  border: 1px dashed var(--line);
  background: linear-gradient(90deg, rgba(255, 194, 71, 0.1), transparent);
}

.amount-panel > span,
.amount-panel small {
  display: block;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

#donationAmount {
  display: block;
  margin: 8px 0;
  color: var(--accent);
  font-family: "Arial Black", Impact, sans-serif;
  font-size: clamp(42px, 10vw, 82px);
  line-height: 0.9;
  text-shadow: 4px 4px 0 var(--accent-deep);
}

.limit-warning {
  padding: 12px 14px;
  border-left: 3px solid var(--warning);
  background: rgba(255, 107, 81, 0.09);
  color: #f0f2f3;
  font-family: "Segoe UI", sans-serif;
  font-size: 13px;
  line-height: 1.5;
}

.mono-widget {
  min-height: 260px;
  margin-top: 24px;
  border: 1px solid var(--line);
  background: #f0f2f3;
}

.mono-placeholder {
  position: relative;
  display: flex;
  min-height: 260px;
  padding: 28px;
  color: #1b202a;
  text-align: left;
  flex-direction: column;
  align-items: stretch;
}

.mono-wordmark {
  color: #080a0f;
  font-family: "Arial Black", Impact, sans-serif;
  font-size: 30px;
  letter-spacing: -0.08em;
}

.demo-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 6px 8px;
  border: 1px solid #919caa;
  color: #525d6c;
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.mono-header {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding-right: 130px;
  font-weight: 800;
}

.mock-jar-icon {
  display: grid;
  width: 80px;
  height: 80px;
  margin: 28px auto 16px;
  border: 4px solid #11151d;
  border-radius: 18px 18px 30px 30px;
  background: linear-gradient(180deg, #ffc247 0 52%, #f0f2f3 52%);
  box-shadow: 7px 7px 0 #bec5cc;
  place-items: center;
}

.mock-jar-icon span {
  display: grid;
  width: 36px;
  height: 36px;
  border: 3px solid #11151d;
  border-radius: 50%;
  background: #f0f2f3;
  font-size: 21px;
  font-weight: 900;
  place-items: center;
}

.mono-placeholder h2 {
  margin: 0 0 24px;
  font-family: "Segoe UI", sans-serif;
  font-size: 19px;
  text-align: center;
}

.mock-amount-label {
  margin-bottom: 7px;
  color: #525d6c;
  font-family: "Segoe UI", sans-serif;
  font-size: 12px;
  font-weight: 700;
}

.mock-amount {
  display: block;
  padding: 14px 16px;
  border: 1px solid #919caa;
  background: #fff;
  color: #11151d;
  font-size: 25px;
  font-weight: 900;
}

.mock-pay-button {
  width: 100%;
  margin-top: 14px;
  padding: 16px;
  border: 0;
  border-radius: 10px;
  background: #11151d;
  color: #f0f2f3;
  cursor: not-allowed;
  font-family: "Segoe UI", sans-serif;
  font-size: 15px;
  font-weight: 800;
  opacity: 0.72;
}

.mock-disclaimer {
  margin: 12px 0 0;
  color: #667383;
  font-family: "Segoe UI", sans-serif;
  font-size: 11px;
  line-height: 1.45;
  text-align: center;
}

.mono-frame {
  display: block;
  width: 100%;
  min-height: 540px;
  border: 0;
  background: #fff;
}

.mono-link {
  display: block;
  margin-top: 18px;
  padding: 17px 20px;
  border: 2px solid var(--accent);
  background: var(--accent);
  color: #11151d;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  box-shadow: 5px 5px 0 var(--accent-deep);
}

.mono-link:hover,
.mono-link:focus-visible {
  background: #f0f2f3;
}

.post-donation-actions {
  padding-top: 24px;
  margin-top: 30px;
  border-top: 1px solid var(--line);
}

.post-donation-actions > p {
  margin: 0 0 12px;
  color: var(--text);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.post-donation-actions small,
.thanks-disclaimer {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-family: "Segoe UI", sans-serif;
  font-size: 11px;
  line-height: 1.5;
}

.thanks-link,
.thanks-primary-link,
.thanks-secondary-link {
  display: flex;
  min-height: 52px;
  padding: 14px 17px;
  border: 1px solid var(--line);
  color: var(--text);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.05em;
  text-decoration: none;
  text-transform: uppercase;
  align-items: center;
  justify-content: space-between;
}

.thanks-link:hover,
.thanks-link:focus-visible,
.thanks-secondary-link:hover,
.thanks-secondary-link:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.thank-you-card {
  overflow: hidden;
  text-align: center;
}

.thanks-emblem {
  display: block;
  width: clamp(150px, 34vw, 230px);
  height: auto;
  margin: 28px auto 24px;
  image-rendering: pixelated;
  filter: drop-shadow(8px 10px 0 rgba(0, 0, 0, 0.32));
}

.thanks-copy {
  max-width: 590px;
  margin: 24px auto 0;
  color: var(--muted);
  font-family: "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

.thanks-copy strong {
  color: var(--text);
}

.thanks-slogan {
  margin: 26px 0 0;
  color: var(--accent);
  font-size: clamp(16px, 3vw, 22px);
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.thanks-actions {
  display: grid;
  margin-top: 30px;
  gap: 12px;
  grid-template-columns: 1fr 1fr;
}

.thanks-primary-link {
  border: 2px solid var(--accent);
  background: var(--accent);
  color: #11151d;
  box-shadow: 5px 5px 0 var(--accent-deep);
}

.thanks-primary-link:hover,
.thanks-primary-link:focus-visible {
  background: #f0f2f3;
}

.thanks-primary-link,
.thanks-secondary-link {
  justify-content: center;
}

.thanks-disclaimer {
  max-width: 520px;
  margin-inline: auto;
}

@media (max-width: 560px) {
  body {
    overflow-x: hidden;
  }

  .donation-page {
    width: calc(100% - 24px);
    padding: 18px 0 32px;
  }

  .back-link {
    display: inline-flex;
    min-height: 44px;
    margin-bottom: 12px;
    align-items: center;
  }

  .donation-card {
    padding: 22px 16px;
    box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.28);
  }

  h1 {
    font-size: clamp(32px, 12vw, 48px);
    overflow-wrap: anywhere;
  }

  .donation-heading > p:last-child {
    margin-top: 14px;
    font-size: 14px;
  }

  .amount-panel {
    margin-top: 24px;
    padding: 17px 15px;
  }

  #donationAmount {
    font-size: clamp(40px, 15vw, 58px);
  }

  .mono-widget,
  .mono-placeholder {
    min-height: 0;
  }

  .mono-placeholder {
    padding: 20px 16px;
  }

  .demo-badge {
    position: static;
    width: max-content;
    margin-bottom: 14px;
  }

  .mono-header {
    padding-right: 0;
    flex-wrap: wrap;
  }

  .mono-wordmark {
    font-size: 27px;
  }

  .mock-jar-icon {
    margin-top: 22px;
  }

  .mono-placeholder h2 {
    font-size: 17px;
    line-height: 1.35;
  }

  .mock-amount {
    padding: 13px;
    font-size: 22px;
  }

  .mock-pay-button,
  .mono-link,
  .thanks-link,
  .thanks-primary-link,
  .thanks-secondary-link {
    min-height: 48px;
  }

  .mono-link {
    padding-inline: 14px;
    font-size: 13px;
  }

  .post-donation-actions {
    margin-top: 24px;
  }

  .thanks-emblem {
    width: min(58vw, 190px);
  }

  .thanks-copy {
    font-size: 15px;
  }

  .thanks-actions {
    gap: 10px;
  }
}

@media (max-width: 560px) {
  .thanks-actions {
    grid-template-columns: 1fr;
  }
}