/* ========================================
   MAIN.CSS - Переменные и базовые стили v2.0
   ======================================== */

:root {
  /* Основные цвета (обновлённые) */
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #3b82f6;
  
  /* Акценты */
  --color-accent-gold: #d4af37;
  --color-accent-gold-light: #e8c96a;
  --color-accent-teal: #0d9488;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-success: #10b981;
  
  /* Нейтральные */
  --color-white: #ffffff;
  --color-off-white: #f9fafb;
  --color-ice-blue: #f0f9ff;
  --color-light-gray: #f1f5f9;
  --color-slate: #1e293b;
  
  /* Текст */
  --color-text-dark: #0f172a;
  --color-text-gray: #64748b;
  --color-text-light: #94a3b8;
  
  /* Градиенты */
  --gradient-primary: linear-gradient(135deg, #2563eb 0%, #0ea5e9 100%);
  --gradient-hero: linear-gradient(135deg, #f0f9ff 0%, #ffffff 100%);
  --gradient-dark: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  --gradient-gold-subtle: linear-gradient(135deg, rgba(212, 175, 55, 0.08) 0%, transparent 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.7) 100%);
  
  /* Тени */
  --shadow-subtle: 0 4px 20px rgba(31, 38, 135, 0.08);
  --shadow-medium: 0 8px 32px rgba(31, 38, 135, 0.12);
  --shadow-interactive: 0 10px 40px -10px rgba(37, 99, 235, 0.15);
  --shadow-glass: 0 8px 32px rgba(31, 38, 135, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.6);
  
  /* Радиусы */
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 32px;
  --radius-xl: 48px;
  
  /* Отступы */
  --section-padding: clamp(60px, 8vw, 100px);
  --container-padding: clamp(20px, 5vw, 80px);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--color-text-dark);
  background: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--color-text-dark);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 1.875rem);
}

p {
  margin-bottom: 1.5rem;
  color: var(--color-text-gray);
}

ul, ol {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--color-text-gray);
}

li {
  margin-bottom: 0.5rem;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: all 0.3s ease;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Контейнеры */
.container {
  width: 100%;
  max-width: 100%;
  padding: 0 var(--container-padding);
  margin: 0 auto;
}

.container.narrow {
  max-width: 1200px;
}

/* Секции */
.section {
  padding: var(--section-padding) 0;
  position: relative;
}

.section-alt {
  background: var(--color-ice-blue);
}

.section-dark {
  background: linear-gradient(135deg, #f8fafc 0%, #e9ecef 100%);
}

/* Утилиты */
.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }

.fade-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 0.8s ease forwards;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}