/* CryptoSwift - Main Stylesheet - ОКОНЧАТЕЛЬНО ИСПРАВЛЕННАЯ ВЕРСИЯ */

/* CSS Variables */
:root {
  /* Colors */
  --primary: #00D4FF;
  --primary-dark: #0099CC;
  --primary-light: #33DDFF;
  --secondary: #FF6B35;
  --accent: #8B5CF6;
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --info: #3B82F6;
  
  /* Dark Theme Colors */
  --bg-primary: #0A0B0F;
  --bg-secondary: #1A1B23;
  --bg-tertiary: #2A2B35;
  --surface: #1E1F28;
  --surface-light: #2D2E3A;
  
  --text-primary: #FFFFFF;
  --text-secondary: #B4B6C7;
  --text-tertiary: #6B7280;
  --text-muted: #4B5563;
  
  --border-primary: #374151;
  --border-secondary: #4B5563;
  
  /* Light Theme Colors */
  --light-bg-primary: #FFFFFF;
  --light-bg-secondary: #F8FAFC;
  --light-bg-tertiary: #F1F5F9;
  --light-surface: #FFFFFF;
  --light-surface-light: #F8FAFC;
  
  --light-text-primary: #1F2937;
  --light-text-secondary: #6B7280;
  --light-text-tertiary: #9CA3AF;
  --light-text-muted: #D1D5DB;
  
  --light-border-primary: #E5E7EB;
  --light-border-secondary: #D1D5DB;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  
  /* Typography */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
  
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
  
  /* Z-Index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-toast: 1080;
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-primary: var(--light-bg-primary);
  --bg-secondary: var(--light-bg-secondary);
  --bg-tertiary: var(--light-bg-tertiary);
  --surface: var(--light-surface);
  --surface-light: var(--light-surface-light);
  
  --text-primary: var(--light-text-primary);
  --text-secondary: var(--light-text-secondary);
  --text-tertiary: var(--light-text-tertiary);
  --text-muted: var(--light-text-muted);
  
  --border-primary: var(--light-border-primary);
  --border-secondary: var(--light-border-secondary);
}

/* Reset and Base Styles */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  /* ИСПРАВЛЕНО: Плавный переход при смене темы */
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Skip Navigation */
.skip-nav {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--primary);
  color: white;
  padding: 8px 16px;
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-medium);
  z-index: var(--z-tooltip);
  transition: var(--transition-fast);
}

.skip-nav:focus {
  top: 6px;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-xl);
  }
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background: rgba(10, 11, 15, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-primary);
  transition: var(--transition-normal);
}

/* ИСПРАВЛЕНО: Правильные цвета navbar для светлой темы */
[data-theme="light"] .navbar {
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--light-border-primary);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-md);
  max-width: 1200px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .nav-container {
    padding: var(--space-md) var(--space-xl);
  }
}

.nav-brand {
  display: flex;
  align-items: center;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.brand-link:hover {
  transform: scale(1.02);
}

.brand-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-svg {
  width: 100%;
  height: 100%;
}

.brand-text {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
}

.nav-link {
  position: relative;
  padding: var(--space-sm) 0;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* КРИТИЧНО ИСПРАВЛЕНО: Theme toggle */
.theme-toggle {
  position: relative;
  width: 40px;
  height: 40px;
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  /* КРИТИЧНО: Предотвращаем множественные клики */
  pointer-events: auto;
}

.theme-toggle:hover {
  background: var(--surface-light);
  transform: scale(1.05);
}

/* ИСПРАВЛЕНО: Четкие стили для иконок темы */
.theme-icon {
  width: 20px;
  height: 20px;
  stroke: var(--text-secondary);
  fill: none;
  stroke-width: 2;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  position: absolute;
  top: 50%;
  left: 50%;
  transform-origin: center;
}

/* КРИТИЧНО ИСПРАВЛЕНО: Правильное переключение иконок */
.theme-icon.sun-icon {
  transform: translate(-50%, -50%) rotate(0deg);
}

.theme-icon.moon-icon {
  transform: translate(-50%, -50%) rotate(0deg);
}

/* Состояния для темной темы */
[data-theme="dark"] .theme-icon.sun-icon {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(180deg);
}

[data-theme="dark"] .theme-icon.moon-icon {
  opacity: 1;
  transform: translate(-50%, -50%) rotate(0deg);
}

/* Состояния для светлой темы */
[data-theme="light"] .theme-icon.sun-icon {
  opacity: 1;
  transform: translate(-50%, -50%) rotate(0deg);
}

[data-theme="light"] .theme-icon.moon-icon {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(180deg);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition-fast);
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    flex-direction: column;
    padding: var(--space-xl);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    border-bottom: 1px solid var(--border-primary);
  }
  
  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-list {
    flex-direction: column;
    gap: var(--space-lg);
    width: 100%;
  }
  
  .nav-actions {
    margin-top: var(--space-lg);
    width: 100%;
    justify-content: center;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }
  
  .nav-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }
}

/* Market Ticker */
.market-ticker {
  background: var(--surface);
  border-bottom: 1px solid var(--border-primary);
  padding: var(--space-sm) 0;
  margin-top: 70px;
  overflow: hidden;
}

.ticker-content {
  display: flex;
  animation: scroll 60s linear infinite;
  white-space: nowrap;
}

.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin-right: var(--space-3xl);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.ticker-pair {
  color: var(--text-secondary);
}

.ticker-price {
  color: var(--text-primary);
  font-weight: var(--font-weight-semibold);
}

.ticker-change {
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-xs);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.ticker-change.positive {
  color: var(--success);
  background: rgba(16, 185, 129, 0.1);
}

.ticker-change.negative {
  color: var(--error);
  background: rgba(239, 68, 68, 0.1);
}

@keyframes scroll {
  0% { transform: translateX(100%); }
  100% { transform: translateX(-100%); }
}

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: var(--space-4xl) 0;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
}

.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 25% 25%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 75% 75%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-gradient {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(0, 212, 255, 0.05) 0%, 
    rgba(139, 92, 246, 0.05) 50%, 
    rgba(255, 107, 53, 0.05) 100%);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

@media (min-width: 1024px) {
  .hero-content {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.hero-text {
  text-align: center;
}

@media (min-width: 1024px) {
  .hero-text {
    text-align: left;
  }
}

.hero-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}

@media (min-width: 768px) {
  .hero-title {
    font-size: var(--font-size-5xl);
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: var(--font-size-6xl);
  }
}

.title-line {
  display: block;
}

.highlight {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 1024px) {
  .hero-subtitle {
    font-size: var(--font-size-xl);
    margin-left: 0;
    margin-right: 0;
  }
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

@media (min-width: 768px) {
  .hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-item {
  text-align: center;
  padding: var(--space-lg);
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  transition: var(--transition-normal);
}

.stat-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.stat-number {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--primary);
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-weight: var(--font-weight-medium);
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

@media (min-width: 640px) {
  .hero-actions {
    flex-direction: row;
    justify-content: center;
  }
}

@media (min-width: 1024px) {
  .hero-actions {
    justify-content: flex-start;
  }
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

@media (min-width: 1024px) {
  .hero-badges {
    justify-content: flex-start;
  }
}

.badge {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.badge:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.badge-icon {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

/* Hero Visual */
.hero-visual {
  display: flex;
  justify-content: center;
}

.exchange-preview {
  max-width: 400px;
  width: 100%;
}

.preview-card {
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-2xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-2xl);
  position: relative;
  overflow: hidden;
}

.preview-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}

.card-header h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-sm);
  color: var(--success);
}

.status-dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: var(--radius-full);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.exchange-flow {
  margin-bottom: var(--space-lg);
}

.currency-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
}

.currency-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: white;
}

.btc-icon {
  background: linear-gradient(135deg, #F7931A, #FFB84D);
}

.xmr-icon {
  background: linear-gradient(135deg, #FF6600, #FF8533);
}

.currency-info {
  flex: 1;
}

.currency-code {
  display: block;
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.currency-name {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.currency-amount {
  font-family: var(--font-family-mono);
  font-weight: var(--font-weight-semibold);
  color: var(--primary);
}

.exchange-arrow {
  display: flex;
  justify-content: center;
  margin: var(--space-md) 0;
}

.exchange-arrow svg {
  width: 24px;
  height: 24px;
  stroke: var(--primary);
  fill: none;
  stroke-width: 2;
}

.exchange-details {
  border-top: 1px solid var(--border-primary);
  padding-top: var(--space-lg);
}

.detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-sm);
}

.detail-row:last-child {
  margin-bottom: 0;
}

.detail-row span:first-child {
  color: var(--text-secondary);
}

.detail-row span:last-child {
  color: var(--text-primary);
  font-weight: var(--font-weight-medium);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  border: none;
  border-radius: var(--radius-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: 0 4px 14px 0 rgba(0, 212, 255, 0.3);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px 0 rgba(0, 212, 255, 0.4);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--surface-light);
  border-color: var(--primary);
  transform: translateY(-1px);
}

.btn-large {
  padding: var(--space-lg) var(--space-2xl);
  font-size: var(--font-size-lg);
}

.btn-full {
  width: 100%;
}

.btn-icon {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

.cta-btn {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-lg);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: var(--transition-fast);
}

.cta-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

@media (min-width: 768px) {
  .section-title {
    font-size: var(--font-size-4xl);
  }
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Exchange Section */
.exchange-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-secondary);
}

.exchange-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
  max-width: 1000px;
  margin: 0 auto;
}

@media (min-width: 1024px) {
  .exchange-container {
    grid-template-columns: 2fr 1fr;
  }
}

.exchange-widget {
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-2xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-xl);
  position: relative;
}

.widget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border-primary);
}

.widget-header h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.security-badge {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

.security-badge svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

/* Form Styles */
.exchange-form {
  margin-bottom: var(--space-2xl);
}

.form-section {
  position: relative;
  margin-bottom: var(--space-xl);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.currency-input {
  display: flex;
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-fast);
}

.currency-input:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.currency-select {
  background: var(--surface);
  border: none;
  padding: var(--space-md);
  color: var(--text-primary);
  font-weight: var(--font-weight-medium);
  min-width: 140px;
  cursor: pointer;
}

.currency-select:focus {
  outline: none;
}

.amount-input {
  flex: 1;
  background: transparent;
  border: none;
  padding: var(--space-md);
  color: var(--text-primary);
  font-family: var(--font-family-mono);
  font-size: var(--font-size-lg);
}

.amount-input:focus {
  outline: none;
}

.amount-input::placeholder {
  color: var(--text-tertiary);
}

.amount-input:read-only {
  color: var(--text-secondary);
  cursor: not-allowed;
}

.input-help {
  margin-top: var(--space-xs);
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.rate-info {
  margin-top: var(--space-xs);
  font-size: var(--font-size-sm);
  color: var(--primary);
  font-weight: var(--font-weight-medium);
}

.exchange-swap {
  display: flex;
  justify-content: center;
  margin: var(--space-lg) 0;
}

.swap-btn {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border: none;
  border-radius: var(--radius-full);
  color: white;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.swap-btn:hover {
  transform: rotate(180deg) scale(1.1);
  box-shadow: var(--shadow-lg);
}

.swap-btn svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

.exchange-summary {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-sm);
}

.summary-row:last-child {
  margin-bottom: 0;
}

.summary-row.total {
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border-primary);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-base);
}

.summary-row span:first-child {
  color: var(--text-secondary);
}

.summary-row span:last-child {
  color: var(--text-primary);
  font-weight: var(--font-weight-medium);
  font-family: var(--font-family-mono);
}

.included {
  color: var(--success) !important;
}

.address-input {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  color: var(--text-primary);
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  line-height: 1.5;
  resize: vertical;
  min-height: 80px;
  transition: var(--transition-fast);
}

.address-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.address-input::placeholder {
  color: var(--text-tertiary);
}

.address-validation {
  margin-top: var(--space-xs);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

.address-validation.valid {
  color: var(--success);
}

.address-validation.invalid {
  color: var(--error);
}

.exchange-btn {
  position: relative;
}

.btn-loader {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top: 2px solid white;
  border-radius: var(--radius-full);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.exchange-guarantees {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-primary);
}

.guarantee {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.guarantee svg {
  width: 16px;
  height: 16px;
  stroke: var(--success);
  fill: none;
  stroke-width: 2;
}

/* Exchange Info */
.exchange-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.info-card {
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
}

.info-card h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.feature-list {
  list-style: none;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.feature-list li:last-child {
  margin-bottom: 0;
}

.feature-list svg {
  width: 16px;
  height: 16px;
  stroke: var(--success);
  fill: none;
  stroke-width: 2;
  flex-shrink: 0;
}

.activity-feed {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.activity-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  transition: var(--transition-fast);
}

.activity-item:hover {
  background: var(--surface-light);
}

.activity-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xs);
  color: white;
  flex-shrink: 0;
}

.activity-details {
  flex: 1;
}

.activity-amount {
  display: block;
  font-family: var(--font-family-mono);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.activity-time {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.activity-status {
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.activity-status.completed {
  color: var(--success);
}

.activity-status.processing {
  color: var(--warning);
  animation: pulse 2s ease-in-out infinite;
}

/* Features Section */
.features-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-primary);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* КРИТИЧНО ИСПРАВЛЕННЫЕ стили анимации для FEATURE CARDS */
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  position: relative;
  overflow: hidden;
  /* ИСПРАВЛЕНО: Правильные начальные состояния */
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), 
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow var(--transition-normal),
              border-color var(--transition-normal);
}

/* ИСПРАВЛЕНО: Состояние когда элемент видим */
.feature-card.animate-in {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

.feature-card:hover {
  transform: translateY(-4px) !important;
  box-shadow: var(--shadow-2xl);
  border-color: var(--primary);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: var(--transition-normal);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  stroke: white;
  fill: none;
  stroke-width: 2;
}

.feature-card h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.feature-benefits {
  list-style: none;
}

.feature-benefits li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.feature-benefits li:last-child {
  margin-bottom: 0;
}

.feature-benefits li::before {
  content: '✓';
  color: var(--success);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
}

/* Security Section */
.security-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-secondary);
}

.security-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

@media (min-width: 768px) {
  .security-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .security-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* КРИТИЧНО ИСПРАВЛЕННЫЕ стили анимации для SECURITY FEATURES */
.security-feature {
  text-align: center;
  padding: var(--space-xl);
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  /* ИСПРАВЛЕНО: Правильные начальные состояния */
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), 
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow var(--transition-normal),
              border-color var(--transition-normal);
}

/* ИСПРАВЛЕНО: Состояние когда элемент видим */
.security-feature.animate-in {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

.security-feature:hover {
  transform: translateY(-2px) !important;
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.security-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
}

.security-icon svg {
  width: 32px;
  height: 32px;
  stroke: white;
  fill: none;
  stroke-width: 2;
}

.security-feature h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.security-feature p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

.certifications {
  text-align: center;
}

.certifications h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-2xl);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  max-width: 600px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .cert-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.cert-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  transition: var(--transition-fast);
}

.cert-item:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.cert-item img {
  width: 60px;
  height: 24px;
  object-fit: contain;
}

.cert-item span {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  text-align: center;
}

/* About Section */
.about-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-primary);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

@media (min-width: 1024px) {
  .about-content {
    grid-template-columns: 1fr 1fr;
  }
}

.about-text h2 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.about-intro {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  line-height: 1.6;
}

.about-features {
  margin-bottom: var(--space-2xl);
}

.about-feature {
  margin-bottom: var(--space-xl);
}

.about-feature:last-child {
  margin-bottom: 0;
}

.about-feature h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.about-feature p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.team-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.team-stat {
  text-align: center;
  padding: var(--space-lg);
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
}

.team-stat .stat-number {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--primary);
  margin-bottom: var(--space-xs);
}

.team-stat .stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.stats-dashboard {
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
}

.stats-dashboard h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-xl);
  text-align: center;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .dashboard-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.dashboard-stat {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
}

.dashboard-stat .stat-icon {
  font-size: var(--font-size-xl);
}

.dashboard-stat .stat-data {
  flex: 1;
}

.dashboard-stat .stat-number {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--primary);
  margin-bottom: var(--space-xs);
}

.dashboard-stat .stat-label {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

/* Testimonials Section */
.testimonials-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-secondary);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

@media (min-width: 768px) {
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* КРИТИЧНО ИСПРАВЛЕННЫЕ стили анимации для TESTIMONIAL CARDS */
.testimonial-card {
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  /* ИСПРАВЛЕНО: Правильные начальные состояния */
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), 
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow var(--transition-normal),
              border-color var(--transition-normal);
}

/* ИСПРАВЛЕНО: Состояние когда элемент видим */
.testimonial-card.animate-in {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

.testimonial-card:hover {
  transform: translateY(-4px) !important;
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.testimonial-rating {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.stars {
  color: #F59E0B;
  font-size: var(--font-size-lg);
}

.rating-text {
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.testimonial-card blockquote {
  font-style: italic;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.author-avatar {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: var(--font-weight-bold);
}

.author-name {
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.author-title {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.testimonial-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  max-width: 600px;
  margin: 0 auto;
}

.testimonial-stats .stat-item {
  text-align: center;
  padding: var(--space-xl);
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
}

/* FAQ Section */
.faq-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-primary);
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
  overflow: hidden;
  transition: var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--primary);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: var(--space-xl);
  text-align: left;
  color: var(--text-primary);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition-fast);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  transition: var(--transition-fast);
}

.faq-item[aria-expanded="true"] .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.faq-item[aria-expanded="true"] .faq-answer {
  max-height: 500px;
}

.faq-answer p {
  padding: 0 var(--space-xl) var(--space-xl);
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* Contact Section */
.contact-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-secondary);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
}

@media (min-width: 1024px) {
  .contact-content {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-info h2 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.contact-info p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-2xl);
}

.contact-methods {
  margin-bottom: var(--space-2xl);
}

.contact-method {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
  transition: var(--transition-fast);
}

.contact-method:hover {
  border-color: var(--primary);
  transform: translateY(-1px);
}

.method-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.method-icon svg {
  width: 24px;
  height: 24px;
  stroke: white;
  fill: none;
  stroke-width: 2;
}

.method-info h4 {
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.method-info p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin: 0;
}

.support-hours h4 {
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.support-hours p {
  color: var(--text-secondary);
  margin: 0;
}

.hours-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.hours-item {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-sm);
}

.day {
  color: var(--text-secondary);
}

.time {
  color: var(--text-primary);
  font-weight: var(--font-weight-medium);
}

.contact-form-container {
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
}

.contact-form h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.contact-form .form-group {
  margin-bottom: var(--space-lg);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
  font-family: inherit;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
  width: auto;
  margin: 0;
}

.checkmark {
  width: 16px;
  height: 16px;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

/* НОВЫЕ СТИЛИ: Уведомления об ошибках PHP */
.php-error-notification {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-toast);
  max-width: 600px;
  width: 90%;
}

.error-content {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--error);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  color: var(--error);
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(10px);
}

.error-icon {
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.error-text {
  flex: 1;
  font-weight: var(--font-weight-medium);
}

.error-close {
  background: none;
  border: none;
  color: inherit;
  font-size: var(--font-size-xl);
  cursor: pointer;
  padding: 0;
  margin-left: var(--space-sm);
  flex-shrink: 0;
  opacity: 0.7;
  transition: var(--transition-fast);
}

.error-close:hover {
  opacity: 1;
}

/* Footer */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-primary);
  padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-content {
    grid-template-columns: 2fr repeat(4, 1fr);
  }
}

.footer-section:first-child {
  grid-column: span 2;
}

@media (min-width: 1024px) {
  .footer-section:first-child {
    grid-column: span 1;
  }
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.footer-description {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.footer-section h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--primary);
}

.social-links {
  display: flex;
  gap: var(--space-md);
}

.social-link {
  width: 40px;
  height: 40px;
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  text-decoration: none;
}

.social-link:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
  border-color: var(--primary);
}

.social-link svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.footer-bottom {
  border-top: 1px solid var(--border-primary);
  padding-top: var(--space-xl);
}

.footer-bottom-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom-content {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-legal p {
  color: var(--text-tertiary);
  font-size: var(--font-size-sm);
  margin: 0;
}

.disclaimer {
  margin-top: var(--space-sm);
}

.footer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
}

@media (min-width: 768px) {
  .footer-badges {
    justify-content: flex-end;
  }
}

.footer-badges .security-badge {
  background: var(--surface);
  border: 1px solid var(--border-primary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border: none;
  border-radius: var(--radius-full);
  color: white;
  cursor: pointer;
  z-index: var(--z-fixed);
  transition: var(--transition-fast);
  box-shadow: var(--shadow-lg);
}

.back-to-top:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

/* Notifications */
.notification-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: 400px;
}

.notification {
  background: var(--surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-xl);
  animation: slideInRight 0.3s ease-out;
  position: relative;
}

.notification.success {
  border-color: var(--success);
  background: rgba(16, 185, 129, 0.1);
}

.notification.error {
  border-color: var(--error);
  background: rgba(239, 68, 68, 0.1);
}

.notification.warning {
  border-color: var(--warning);
  background: rgba(245, 158, 11, 0.1);
}

.notification.info {
  border-color: var(--info);
  background: rgba(59, 130, 246, 0.1);
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Responsive Design */
@media (max-width: 640px) {
  .container {
    padding: 0 var(--space-sm);
  }
  
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-base);
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .hero-actions {
    gap: var(--space-sm);
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .section-subtitle {
    font-size: var(--font-size-base);
  }
  
  .exchange-container {
    gap: var(--space-xl);
  }
  
  .features-grid {
    gap: var(--space-lg);
  }
  
  .feature-card {
    padding: var(--space-lg);
  }
  
  .testimonials-grid {
    gap: var(--space-lg);
  }
  
  .footer-content {
    gap: var(--space-xl);
  }
  
  .notification-container {
    left: 10px;
    right: 10px;
    max-width: none;
  }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.hidden { display: none; }
.visible { display: block; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-primary);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* Selection Styling */
::selection {
  background: rgba(0, 212, 255, 0.3);
  color: var(--text-primary);
}

/* Focus Styles */
*:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

button:focus,
input:focus,
select:focus,
textarea:focus,
a:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.3);
}

/* Print Styles */
@media print {
  .navbar,
  .market-ticker,
  .footer,
  .notification-container,
  .back-to-top {
    display: none !important;
  }
  
  body {
    background: white !important;
    color: black !important;
  }
  
  .hero-section {
    min-height: auto;
    padding: var(--space-xl) 0;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --border-primary: #000000;
    --border-secondary: #000000;
  }
  
  [data-theme="light"] {
    --border-primary: #000000;
    --border-secondary: #000000;
  }
}

/* КРИТИЧНО ИСПРАВЛЕНО: Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  /* Убираем ВСЕ анимации для пользователей с prefers-reduced-motion */
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  /* Специфические анимации */
  .hero-particles {
    animation: none !important;
  }
  
  .status-dot {
    animation: none !important;
  }
  
  .ticker-content {
    animation: none !important;
  }
  
  /* КРИТИЧНО: Сразу показываем все анимированные элементы */
  .feature-card,
  .security-feature,
  .testimonial-card {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* КРИТИЧНО ИСПРАВЛЕНО: Fallback для браузеров без поддержки */
@supports not ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .navbar {
    background: var(--bg-primary) !important;
  }
  
  [data-theme="light"] .navbar {
    background: var(--light-bg-primary) !important;
  }
}

/* КРИТИЧНО ИСПРАВЛЕНО: Общий класс для анимированных элементов */
.scroll-animate {
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), 
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ФИНАЛЬНЫЙ fallback - если JavaScript вообще не работает */
.no-js .feature-card,
.no-js .security-feature,
.no-js .testimonial-card {
  opacity: 1 !important;
  transform: none !important;
}