:root {
  --donate-bg: #f8f9fa;
  --donate-text: #1a1a1a;
  --donate-border: #e0e0e0;
  --donate-card-bg: #ffffff;
  --donate-button-bg: #e22d30;
  --donate-button-hover: #c12427;
  --donate-button-text: #ffffff;
  --donate-code-bg: #f5f5f5;
  --donate-code-text: #333333;
  --donate-success: #22c55e;
  --donate-shadow: rgba(0, 0, 0, 0.1);
  --donate-card-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  --donate-card-hover-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

@media (prefers-color-scheme: dark) {
  :root {
    --donate-bg: #0d1117;
    --donate-text: #e5e5e5;
    --donate-border: #30363d;
    --donate-card-bg: #161b22;
    --donate-button-bg: #e22d30;
    --donate-button-hover: #ff4447;
    --donate-button-text: #ffffff;
    --donate-code-bg: #0d1117;
    --donate-code-text: #e5e5e5;
    --donate-success: #22c55e;
    --donate-shadow: rgba(0, 0, 0, 0.4);
    --donate-card-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --donate-card-hover-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  }
}

.donation-page {
  background-color: var(--donate-bg);
  color: var(--donate-text);
  min-height: 80vh;
  padding: 3rem 1rem;
}

.donation-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.donation-content {
  padding: 0;
}

.donation-header {
  text-align: center;
  margin-bottom: 3rem;
  padding: 2rem 1rem;
  background: linear-gradient(135deg, var(--donate-card-bg) 0%, var(--donate-bg) 100%);
  border-radius: 16px;
  box-shadow: var(--donate-card-shadow);
}

.donation-title {
  font-size: 2.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--donate-text);
  line-height: 1.2;
}

.donation-subtitle {
  font-size: 1.25rem;
  color: var(--donate-text);
  opacity: 0.8;
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.7;
}

.donate-intro {
  text-align: center;
  margin-bottom: 3rem;
}

.donate-intro p {
  font-size: 1.15rem;
  color: var(--donate-text);
  opacity: 0.85;
  line-height: 1.7;
  margin: 0.5rem 0;
}

.crypto-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.crypto-card {
  background-color: var(--donate-card-bg);
  border: 1px solid var(--donate-border);
  border-radius: 12px;
  padding: 1.75rem;
  box-shadow: var(--donate-card-shadow);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.crypto-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--donate-button-bg), var(--donate-button-hover));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.crypto-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--donate-card-hover-shadow);
  border-color: var(--donate-button-bg);
}

.crypto-card:hover::before {
  opacity: 1;
}

.crypto-header {
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--donate-border);
}

.crypto-header h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0;
  color: var(--donate-text);
}

.crypto-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.address-container {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.address-container strong {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--donate-text);
  opacity: 0.7;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.crypto-address {
  background-color: var(--donate-code-bg);
  color: var(--donate-code-text);
  padding: 0.875rem 1rem;
  border-radius: 8px;
  font-family: 'SFMono-Regular', 'Consolas', 'Liberation Mono', 'Menlo', 'Courier', monospace;
  font-size: 0.875rem;
  word-break: break-all;
  display: block;
  border: 1px solid var(--donate-border);
  line-height: 1.5;
}

.copy-btn {
  background-color: var(--donate-button-bg);
  color: var(--donate-button-text);
  border: none;
  padding: 0.875rem 1.5rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  min-height: 48px;
  box-shadow: 0 2px 4px var(--donate-shadow);
  position: relative;
  overflow: hidden;
}

.copy-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.copy-btn:hover::before {
  width: 300px;
  height: 300px;
}

.copy-btn:hover {
  background-color: var(--donate-button-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--donate-shadow);
}

.copy-btn:active {
  transform: translateY(0);
}

.copy-btn.copied {
  background-color: var(--donate-success);
}

.copy-icon {
  font-size: 1.1rem;
}

.qr-code-container {
  margin-top: 1.5rem;
  padding: 1rem;
  background-color: var(--donate-bg);
  border-radius: 8px;
  display: flex;
  justify-content: center;
  align-items: center;
  border: 1px solid var(--donate-border);
}

.qr-code {
  display: inline-block;
  padding: 0.75rem;
  background-color: #ffffff;
  border-radius: 8px;
}

.qr-code img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}

.alternative-section {
  margin-top: 4rem;
  margin-bottom: 2rem;
}

.alternative-divider {
  position: relative;
  text-align: center;
  margin: 2rem 0 3rem 0;
}

.alternative-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--donate-border) 20%, var(--donate-border) 80%, transparent);
}

.alternative-divider-text {
  position: relative;
  display: inline-block;
  padding: 0 1.5rem;
  background-color: var(--donate-bg);
  color: var(--donate-text);
  opacity: 0.7;
  font-size: 1rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.alternative-buttons {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  max-width: 900px;
  margin: 0 auto;
}

.alt-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex: 1;
  min-width: 250px;
  padding: 1.25rem 2rem;
  color: #ffffff;
  text-decoration: none;
  border-radius: 12px;
  font-size: 1.125rem;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
}

.alt-button:hover {
  transform: translateY(-3px);
}

.alt-button:active {
  transform: translateY(-1px);
}

.paypal-button {
  background: linear-gradient(135deg, #0070ba 0%, #1546a0 100%);
  box-shadow: 0 4px 12px rgba(0, 112, 186, 0.3);
}

.paypal-button:hover {
  box-shadow: 0 6px 20px rgba(0, 112, 186, 0.4);
  background: linear-gradient(135deg, #0079c1 0%, #1a52b5 100%);
}

.bmc-button {
  background: linear-gradient(135deg, #FFDD00 0%, #FFC800 100%);
  color: #000000;
  box-shadow: 0 4px 12px rgba(255, 221, 0, 0.3);
}

.bmc-button:hover {
  box-shadow: 0 6px 20px rgba(255, 221, 0, 0.4);
  background: linear-gradient(135deg, #FFE633 0%, #FFD700 100%);
}

.alt-logo {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

.alt-text {
  font-weight: 600;
}

.toast-notification {
  position: fixed;
  bottom: -100px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--donate-success);
  color: #ffffff;
  padding: 1rem 2rem;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  box-shadow: 0 4px 20px rgba(34, 197, 94, 0.4);
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: bottom 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  backdrop-filter: blur(10px);
}

.toast-notification.show {
  bottom: 2rem;
}

.toast-icon {
  font-size: 1.25rem;
  display: inline-block;
  animation: bounce 0.6s ease;
}

.toast-text {
  font-weight: 500;
}

@keyframes bounce {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.2);
  }
}


@media (max-width: 768px) {
  .donation-page {
    padding: 2rem 1rem;
  }

  .donation-title {
    font-size: 2rem;
  }

  .donation-subtitle {
    font-size: 1.125rem;
  }

  .donate-intro p {
    font-size: 1rem;
  }

  .crypto-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .crypto-card {
    padding: 1.5rem;
  }

  .crypto-header h3 {
    font-size: 1.35rem;
  }

  .crypto-address {
    font-size: 0.8rem;
    padding: 0.75rem 0.875rem;
  }

  .qr-code-container {
    padding: 0.75rem;
  }

  .qr-code {
    padding: 0.5rem;
  }

  .alternative-buttons {
    flex-direction: column;
    gap: 1rem;
  }

  .alt-button {
    min-width: 100%;
    font-size: 1rem;
    padding: 1rem 1.5rem;
  }

  .alternative-divider-text {
    font-size: 0.9rem;
  }

  .toast-notification {
    left: 1rem;
    right: 1rem;
    transform: none;
    bottom: -100px;
  }

  .toast-notification.show {
    bottom: 1rem;
  }
}

@media (max-width: 480px) {
  .donation-page {
    padding: 1.5rem 0.75rem;
  }

  .donation-header {
    padding: 1.5rem 1rem;
  }

  .donation-title {
    font-size: 1.75rem;
  }

  .donation-subtitle {
    font-size: 1rem;
  }

  .crypto-card {
    padding: 1.25rem;
  }

  .crypto-header h3 {
    font-size: 1.25rem;
  }

  .crypto-address {
    font-size: 0.75rem;
  }

  .copy-btn {
    font-size: 0.9rem;
    padding: 0.75rem 1.25rem;
  }

  .qr-code-container {
    padding: 0.5rem;
  }

  .qr-code {
    padding: 0.375rem;
  }

  .alternative-section {
    margin-top: 3rem;
  }

  .alt-button {
    font-size: 0.95rem;
    padding: 0.875rem 1.25rem;
  }

  .alt-logo {
    width: 24px;
    height: 24px;
  }
}

@media print {
  .copy-btn {
    display: none;
  }

  .toast-notification {
    display: none;
  }

  .alt-button {
    display: none;
  }
}