* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #0a0a0a;
  --color-bg-card: #151515;
  --color-bg-card-hover: #4e4376;
  --color-border: #222;
  --color-text-primary: #fff;
  --color-text-secondary: #e0e0e0;
  --color-text-muted: #888;
  --color-text-ghost: #666;
  --color-text-footer: #444;
  --color-accent-start: #2b5876;
  --color-accent-end: #4e4376;
  --color-accent-hover: #625494;
  --color-yoomoney: #00aea5;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 20px;
  --spacing-xl: 24px;
  --spacing-2xl: 32px;
  --spacing-3xl: 40px;
  --spacing-4xl: 60px;
  --spacing-5xl: 80px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--color-bg);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

.preloader-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent-end);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-4xl) var(--spacing-xl);
  transition: opacity 0.3s ease;
}

header {
  margin-bottom: var(--spacing-5xl);
  text-align: center;
}

.header-top {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.language-selector {
  position: relative;
  display: inline-block;
  margin-top: var(--spacing-lg);
}

.lang-button {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}

.lang-button:hover {
  border-color: var(--color-bg-card-hover);
  background: var(--color-bg-card-hover);
}

.lang-dropdown {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px;
  min-width: 160px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s;
  z-index: 100;
}

.lang-dropdown.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.lang-dropdown button {
  width: 100%;
  padding: 8px 12px;
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-size: 14px;
  text-align: left;
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 8px;
}

.lang-dropdown button:hover {
  background: var(--color-bg-card-hover);
  color: var(--color-text-primary);
}

h1 {
  font-size: 48px;
  font-weight: 700;
  background: linear-gradient(to left, var(--color-accent-start), var(--color-accent-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  color: var(--color-text-ghost);
  font-size: 18px;
  margin-bottom: var(--spacing-md);
}

.social-links {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--spacing-xs);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  color: var(--color-text-ghost);
  transition: all 0.2s;
}

.social-icon:hover {
  border-color: var(--color-bg-card-hover);
  color: var(--color-accent-hover);
}

.social-icon img {
  filter: brightness(0) saturate(100%) invert(40%) sepia(0%) saturate(0%) hue-rotate(0deg) brightness(95%) contrast(85%);
}

.social-icon:hover img {
  filter: brightness(0) saturate(100%) invert(45%) sepia(52%) saturate(1000%) hue-rotate(233deg) brightness(95%) contrast(85%);
}

section {
  margin-bottom: var(--spacing-5xl);
}

h2 {
  font-size: 28px;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

.support {
  background: linear-gradient(135deg, rgba(43, 88, 118, 0.15) 0%, rgba(78, 67, 118, 0.15) 100%);
  border: 1px solid rgba(78, 67, 118, 0.3);
  border-radius: var(--radius-lg);
  padding: var(--spacing-3xl);
}

.support-text {
  color: #aaa;
  margin-bottom: var(--spacing-2xl);
}

.support-header {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
}

.services-wrapper {
  width: 100%;
  margin-bottom: var(--spacing-2xl);
}

.meme-wrapper {
  margin-left: var(--spacing-2xl);
}

.meme-wrapper img {
  aspect-ratio: 1;
  width: 200px;
  border-radius: var(--radius-md);
  transition: 0.5s;
}

.meme-wrapper img:hover {
  transform: scale(1.2) rotate(5deg);
}

.yoomoney-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-xl);
  background: var(--color-accent-end);
  border: none;
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: 18px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.yoomoney-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.15);
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: var(--radius-md);
}

.yoomoney-btn:hover::before {
  opacity: 1;
}

.yoomoney-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(78, 67, 118, 0.4);
}

.yoomoney-btn span,
.yoomoney-icon {
  position: relative;
  z-index: 1;
}

.yoomoney-icon {
  width: var(--spacing-xl);
  height: var(--spacing-xl);
  fill: currentColor;
}

.crypto-grid,
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
  gap: var(--spacing-lg);
}

.crypto-card,
.project-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all 0.2s;
}

.crypto-card:hover,
.project-card:hover {
  border-color: var(--color-bg-card-hover);
}

.crypto-card {
  padding: var(--spacing-lg);
  min-width: 0;
}

.crypto-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  min-width: 0;
}

.crypto-logo {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.crypto-name {
  font-weight: 600;
  font-size: 16px;
  color: var(--color-text-primary);
}

.crypto-address {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--spacing-xs);
  padding: 10px var(--spacing-sm);
  min-width: 0;
}

.address-text {
  flex: 1;
  font-family: ui-monospace, 'Cascadia Code', 'SF Mono', 'Consolas', monospace;
  font-size: 13px;
  color: var(--color-text-muted);
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
  min-width: 0;
}

.address-text::-webkit-scrollbar {
  height: 4px;
}

.address-text::-webkit-scrollbar-track {
  background: transparent;
}

.address-text::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 2px;
}

.address-text::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-ghost);
}

.copy-btn,
.qr-btn {
  background: none;
  border: none;
  color: var(--color-text-ghost);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  transition: color 0.2s;
  flex-shrink: 0;
}

.copy-btn:hover,
.qr-btn:hover {
  color: var(--color-accent-hover);
}

.copy-btn img,
.qr-btn img {
  filter: brightness(0) saturate(100%) invert(40%) sepia(0%) saturate(0%) hue-rotate(0deg) brightness(95%) contrast(85%);
}

.copy-btn:hover img,
.qr-btn:hover img {
  filter: brightness(0) saturate(100%) invert(45%) sepia(52%) saturate(1000%) hue-rotate(233deg) brightness(95%) contrast(85%);
}

.project-card {
  overflow: hidden;
  text-decoration: none;
  color: inherit;
}

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

.project-image {
  width: 100%;
  height: 160px;
  background-size: cover;
  background-position: center;
  background-color: #221d33;
}

.project-content {
  padding: var(--spacing-lg);
}

.project-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.project-desc {
  color: var(--color-text-muted);
  font-size: 14px;
}

footer {
  text-align: center;
  color: var(--color-text-footer);
  font-size: 16px;
  padding-top: var(--spacing-3xl);
  border-top: 1px solid var(--color-border);
}

.toast {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  background: linear-gradient(to left, var(--color-accent-start), var(--color-accent-end));
  color: var(--color-text-primary);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--spacing-xs);
  font-size: 14px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s;
  pointer-events: none;
  z-index: 2000;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.qr-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
  z-index: 1000;
  padding: var(--spacing-lg);
}

.qr-modal.show {
  opacity: 1;
  visibility: visible;
}

.qr-content {
  background: var(--color-bg-card);
  border: 1px solid var(--color-bg-card-hover);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  text-align: center;
  position: relative;
  max-width: 90%;
  width: 100%;
  max-width: 400px;
}

.qr-close {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  background: none;
  border: none;
  color: var(--color-text-ghost);
  font-size: 32px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  transition: color 0.2s;
}

.qr-close:hover {
  color: var(--color-accent-hover);
}

.qr-crypto-logo {
  width: 40px;
  height: 40px;
  margin: 0 auto var(--spacing-md);
  display: block;
}

#qrCode {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: var(--spacing-md) 0;
  background: white;
  padding: var(--spacing-md);
  border-radius: var(--spacing-xs);
  width: 100%;
  aspect-ratio: 1;
}

#qrCode canvas {
  max-width: 100% !important;
  max-height: 100% !important;
  width: auto !important;
  height: auto !important;
}

.qr-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.qr-address {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  color: var(--color-text-muted);
  word-break: break-all;
  margin: 0;
}

@media (max-width: 768px) {
  .container {
    padding: var(--spacing-3xl) var(--spacing-lg);
  }
  .header-top {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  .language-selector {
    position: fixed;
    transform: none;
  }
  .support {
    padding: var(--spacing-xl);
  }
  .support-header {
    flex-direction: column;
  }
  .meme-wrapper {
    margin-left: 0;
    margin-bottom: var(--spacing-2xl);
    text-align: center;
  }
  .meme-wrapper img {
    width: 100%;
  }
  .crypto-grid,
  .project-grid {
    grid-template-columns: 1fr;
  }
  .qr-content {
    padding: var(--spacing-xl);
    width: auto;
  }
  .address-text {
    font-size: 11px;
  }
  .yoomoney-btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  h2 {
    font-size: 22px;
  }
  .crypto-header {
    flex-wrap: wrap;
  }
}