/* =====================================================
   MAIN.CSS - Основные стили
   Современный дизайн с glassmorphism и градиентами
   ===================================================== */

/* CSS Variables */
:root {
    /* Colors */
    --primary: #e85d6c;
    --primary-dark: #d44a59;
    --primary-light: #ff7a87;
    --secondary: #4a90a4;
    --accent: #f8b500;
    
    /* Neutrals */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Gradients - Premium */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    --gradient-bg-warm: linear-gradient(135deg, #fef3f2 0%, #fef9f8 50%, #f5f3ff 100%);
    --gradient-bg-cool: linear-gradient(180deg, #f0f9ff 0%, #fefefe 50%, #fdf4ff 100%);
    --gradient-bg-soft: linear-gradient(135deg, #fff7ed 0%, #fffbeb 50%, #f0fdf4 100%);
    --gradient-mesh: radial-gradient(at 40% 20%, rgba(232, 93, 108, 0.08) 0px, transparent 50%),
                     radial-gradient(at 80% 0%, rgba(120, 119, 198, 0.08) 0px, transparent 50%),
                     radial-gradient(at 0% 50%, rgba(251, 113, 133, 0.06) 0px, transparent 50%),
                     radial-gradient(at 80% 50%, rgba(120, 119, 198, 0.06) 0px, transparent 50%),
                     radial-gradient(at 0% 100%, rgba(253, 186, 116, 0.08) 0px, transparent 50%);
    
    /* Glass Effects */
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-bg-strong: rgba(255, 255, 255, 0.9);
    --glass-border: rgba(255, 255, 255, 0.6);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.08);
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 5rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --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, 0.07);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 40px rgba(232, 93, 108, 0.15);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Typography - Elegant Premium Fonts */
    --font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-family-display: 'Playfair Display', Georgia, serif;
    --font-family-body: 'Montserrat', sans-serif;
    --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: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family-body);
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--gray-700);
    background: var(--gradient-bg-warm);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    font-weight: 400;
}

/* Элегантные заголовки */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-display);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

/* Mesh Background Overlay */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: var(--gradient-mesh);
    pointer-events: none;
    z-index: -1;
}

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

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

ul, ol {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.3;
    margin-bottom: var(--space-md);
}

/* Section Header - Centered */
.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-title {
    font-family: var(--font-family-display);
    font-size: var(--font-size-3xl);
    font-weight: 600;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-family: var(--font-family-body);
    font-weight: 300;
    letter-spacing: 0.02em;
}

.section-header .section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--gray-500);
    max-width: 600px;
    line-height: 1.8;
}

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

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* =====================================================
   GLASSMORPHISM COMPONENTS
   ===================================================== */

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    box-shadow: var(--glass-shadow);
}

.glass-card-dark {
    background: var(--glass-bg-strong);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

.glass-card-sm {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
}

.glass-btn {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 14px 0 rgba(232, 93, 108, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(232, 93, 108, 0.45);
    color: var(--white);
}

.btn-outline {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    color: var(--gray-700);
    border: 2px solid var(--gray-200);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(232, 93, 108, 0.05);
}

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

.btn-full {
    width: 100%;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
    transition: all var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.92);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-text {
    font-family: var(--font-family-display);
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 0.02em;
}

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

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-600);
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.nav-cta {
    margin-left: var(--space-lg);
}

/* Hero Section */
.hero {
    padding: 140px 0 100px;
    position: relative;
    overflow: hidden;
}

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

.hero-content {
    max-width: 560px;
}

.hero-title {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--space-lg);
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--gray-500);
    margin-bottom: var(--space-2xl);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
}

.hero-image-wrapper {
    position: relative;
    overflow: hidden;
    padding: var(--space-md);
}

.hero-image-wrapper img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-2xl);
}

/* Features Section */
.features {
    padding: var(--space-3xl) 0;
    position: relative;
}

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

.feature-card {
    padding: var(--space-xl);
    transition: all var(--transition-base);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.feature-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    background: linear-gradient(135deg, rgba(232, 93, 108, 0.12) 0%, rgba(232, 93, 108, 0.04) 100%);
    border-radius: var(--radius-xl);
    color: var(--primary);
}

.feature-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-sm);
}

.feature-text {
    font-size: var(--font-size-base);
    color: var(--gray-500);
    line-height: 1.7;
}

/* Consultation Section */
.consultation {
    padding: var(--space-3xl) 0;
    background: linear-gradient(135deg, var(--gray-900) 0%, #1a1a2e 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.consultation::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(232, 93, 108, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.consultation-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.consultation .section-title {
    color: var(--white);
}

.consultation .section-subtitle {
    color: var(--gray-400);
}

.consultation-list {
    margin-top: var(--space-xl);
}

.consultation-list li {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    font-size: var(--font-size-lg);
    color: var(--gray-300);
}

.consultation-list li svg {
    flex-shrink: 0;
    color: var(--primary-light);
}

.consultation-form-wrapper {
    padding: var(--space-2xl);
}

.consultation-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

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

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-700);
}

.form-group input,
.form-group textarea {
    padding: var(--space-md) var(--space-lg);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    color: var(--gray-700);
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(232, 93, 108, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.form-checkbox input {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    accent-color: var(--primary);
}

.form-checkbox label {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    cursor: pointer;
}

/* Pricing Section */
.pricing {
    padding: var(--space-3xl) 0;
    position: relative;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    padding: var(--space-2xl);
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    box-shadow: 
        0 10px 40px -10px rgba(0, 0, 0, 0.1),
        0 20px 60px -20px rgba(232, 93, 108, 0.08);
    transition: all var(--transition-base);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 
        0 20px 60px -15px rgba(0, 0, 0, 0.15),
        0 30px 80px -25px rgba(232, 93, 108, 0.15);
}

.pricing-card-featured {
    border: 2px solid var(--primary);
    background: linear-gradient(180deg, rgba(255,255,255,0.95) 0%, rgba(232, 93, 108, 0.04) 100%);
    box-shadow: 
        0 10px 40px -10px rgba(0, 0, 0, 0.1),
        0 20px 60px -20px rgba(232, 93, 108, 0.2);
}

.pricing-card-featured:hover {
    box-shadow: 
        0 20px 60px -15px rgba(0, 0, 0, 0.15),
        0 30px 80px -25px rgba(232, 93, 108, 0.25);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--space-sm) var(--space-xl);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(232, 93, 108, 0.4);
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--gray-100);
}

.pricing-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-lg);
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--space-xs);
}

.price-from {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.price-value {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--primary);
}

.price-currency {
    font-size: var(--font-size-xl);
    color: var(--primary);
}

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

.pricing-features li {
    padding: var(--space-md) 0;
    color: var(--gray-600);
    border-bottom: 1px solid var(--gray-100);
    line-height: 1.6;
}

.pricing-features li:last-child {
    border-bottom: none;
}