/* ===============================================
   Современная светлая страница "Сайт в разработке"
   Arte-Fier SRL
   =============================================== */

/* CSS-переменные */
:root {
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-secondary: #64748b;
  --color-text: #1e293b;
  --color-text-light: #64748b;
  --color-bg: #f8fafc;
  --color-bg-gradient-start: #e0f2fe;
  --color-bg-gradient-end: #f0f9ff;
  --color-white: #ffffff;
  --color-border: #e2e8f0;
  --color-shadow: rgba(15, 23, 42, 0.08);
  --color-shadow-hover: rgba(15, 23, 42, 0.12);
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-full: 999px;
  
  --transition: all 0.3s ease;
  --transition-fast: all 0.15s ease;
}

/* Reset и базовые стили */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 
               Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: linear-gradient(135deg, var(--color-bg-gradient-start) 0%, var(--color-bg-gradient-end) 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
  animation: fadeIn 0.6s ease-out;
}

/* Геометрические декоративные элементы фона */
body::before,
body::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.03) 0%, rgba(59, 130, 246, 0.05) 100%);
  z-index: -1;
  pointer-events: none;
}

body::before {
  width: 600px;
  height: 600px;
  top: -200px;
  right: -150px;
  animation: float 20s ease-in-out infinite;
}

body::after {
  width: 400px;
  height: 400px;
  bottom: -100px;
  left: -100px;
  animation: float 15s ease-in-out infinite reverse;
}

/* Анимации */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-30px) scale(1.05);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Контейнер */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  width: 100%;
}

/* Переключатель языков */
.language-switcher {
  position: fixed;
  top: var(--spacing-md);
  right: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: var(--color-white);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-full);
  box-shadow: 0 2px 8px var(--color-shadow);
  z-index: 1000;
  animation: slideIn 0.4s ease-out 0.2s backwards;
}

.lang-btn {
  background: none;
  border: none;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-light);
  cursor: pointer;
  border-radius: var(--border-radius-sm);
  transition: var(--transition-fast);
  outline: none;
}

.lang-btn:hover {
  color: var(--color-primary);
  background: var(--color-bg);
}

.lang-btn.active {
  color: var(--color-primary);
  background: var(--color-bg);
}

.lang-btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.lang-separator {
  color: var(--color-border);
  font-weight: 300;
}

/* Header (Hero-блок) */
.header {
  padding: var(--spacing-2xl) 0 var(--spacing-xl);
  text-align: center;
  flex: 0 0 auto;
  animation: fadeIn 0.8s ease-out 0.1s backwards;
}

.company-name {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.02em;
}

.subtitle {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.01em;
}

.description {
  font-size: 1.125rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Main (Контактная карточка) */
.main {
  flex: 1 0 auto;
  display: flex;
  align-items: flex-start;
  padding: var(--spacing-lg) 0;
  animation: slideIn 0.8s ease-out 0.3s backwards;
}

.contact-card {
  background: var(--color-white);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  box-shadow: 0 4px 20px var(--color-shadow);
  backdrop-filter: blur(10px);
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
  transition: var(--transition);
}

.contact-card:hover {
  box-shadow: 0 8px 30px var(--color-shadow-hover);
  transform: translateY(-2px);
}

.contact-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

/* Список контактов */
.contact-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  transition: var(--transition-fast);
}

.contact-item:hover {
  background: var(--color-bg);
}

.contact-icon {
  flex-shrink: 0;
  color: var(--color-primary);
  margin-top: 2px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}

.contact-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contact-value {
  font-size: 1rem;
  color: var(--color-text);
  word-break: break-word;
}

/* CTA кнопки */
.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-xl);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--border-radius-sm);
  transition: var(--transition);
  cursor: pointer;
  border: none;
  outline: none;
  text-align: center;
}

.btn svg {
  flex-shrink: 0;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Footer */
.footer {
  flex: 0 0 auto;
  padding: var(--spacing-lg) 0;
  text-align: center;
}

.copyright {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

/* Адаптивность - Tablet и Desktop */
@media (min-width: 768px) {
  .company-name {
    font-size: 3.5rem;
  }
  
  .subtitle {
    font-size: 2rem;
  }
  
  .description {
    font-size: 1.25rem;
  }
  
  .contact-title {
    font-size: 2rem;
  }
  
  .cta-buttons {
    flex-direction: row;
    gap: var(--spacing-md);
  }
  
  .btn {
    flex: 1;
  }
  
  .header {
    padding: var(--spacing-2xl) 0 var(--spacing-2xl);
  }
  
  .contact-card {
    padding: var(--spacing-2xl);
  }
}

/* Состояния для скрытых элементов */
.hidden {
  display: none !important;
}