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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1e293b;
    background-color: #ffffff;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2.5rem;
    font-weight: 600;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
    color: #64748b;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 16px;
}

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.btn-outline {
    background: transparent;
    color: #667eea;
    border-color: #667eea;
}

.btn-outline:hover {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    z-index: 1000;
    padding: 16px 0;
    transition: background-color 0.2s ease; /* Упрощенная анимация */
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 700;
    color: #1e293b;
    text-decoration: none;
}

.logo-icon {
    font-size: 28px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: #64748b;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #667eea;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: #1e293b;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative; /* Убираем will-change и transform для стабильности */
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    color: #1e293b;
}

.gradient-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: #64748b;
    margin-bottom: 32px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 0; /* Убрали отступ, так как статистики больше нет */
}

/* Dashboard Preview */
.dashboard-preview {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    border: 1px solid #e2e8f0;
}

.dashboard-header {
    background: #f8fafc;
    padding: 16px 24px;
    border-bottom: 1px solid #e2e8f0;
}

.dashboard-nav {
    display: flex;
    gap: 24px;
}

.nav-item {
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: 500;
    color: #64748b;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-item.active {
    background: #667eea;
    color: white;
}

.dashboard-content {
    padding: 24px;
}

.widget-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.widget {
    background: #f8fafc;
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    border: 1px solid #e2e8f0;
}

.widget-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.widget-content {
    flex: 1;
}

.widget-title {
    font-size: 0.875rem;
    color: #64748b;
    margin-bottom: 4px;
}

.widget-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1e293b;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: white;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 16px;
}

.section-description {
    font-size: 1.25rem;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    background: white;
    border-radius: 16px;
    padding: 32px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 24px;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 16px;
}

.feature-description {
    color: #64748b;
    margin-bottom: 24px;
    line-height: 1.6;
}

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

.feature-list li {
    padding: 8px 0;
    color: #64748b;
    position: relative;
    padding-left: 24px;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: 600;
}

/* How it works Section */
.how-it-works {
    padding: 80px 0;
    background: #f8fafc;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    position: relative;
    z-index: 2;
}

.step::after {
    content: '';
    position: absolute;
    top: 30px;
    left: 50%;
    right: -50%;
    height: 2px;
    background: #e2e8f0;
    z-index: 1;
}

.step:last-child::after {
    display: none;
}

.step-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 12px;
}

.step-description {
    color: #64748b;
    line-height: 1.6;
}

/* Benefits Section */
.benefits {
    padding: 80px 0;
    background: white;
}

.benefits-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.benefit-list {
    margin-top: 32px;
}

.benefit {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 32px;
}

.benefit-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f1f5f9;
    border-radius: 12px;
    flex-shrink: 0;
}

.benefit-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 8px;
}

.benefit-description {
    color: #64748b;
    line-height: 1.6;
}

/* Phone Mockup */
.phone-mockup {
    position: relative;
    max-width: 300px;
    margin: 0 auto;
}

.phone-screen {
    background: #1e293b;
    border-radius: 24px;
    padding: 8px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.phone-screen::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: #64748b;
    border-radius: 2px;
}

.mobile-nav {
    display: flex;
    justify-content: space-around;
    padding: 16px 8px;
    background: #334155;
    border-radius: 16px 16px 0 0;
}

.mobile-nav .nav-item {
    padding: 8px;
    border-radius: 8px;
    font-size: 1.2rem;
    color: #94a3b8;
    transition: all 0.3s ease;
}

.mobile-nav .nav-item.active {
    background: #667eea;
    color: white;
}

.mobile-content {
    padding: 16px;
    background: white;
    border-radius: 0 0 16px 16px;
    min-height: 300px;
}

.mobile-widget {
    background: #f8fafc;
    border-radius: 12px;
    padding: 16px;
    border: 1px solid #e2e8f0;
}

.mobile-widget .widget-title {
    font-size: 1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 12px;
}

.widget-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid #e2e8f0;
}

.widget-item:last-child {
    border-bottom: none;
}

.item-name {
    font-size: 0.875rem;
    color: #1e293b;
}

.item-status {
    font-size: 0.75rem;
    padding: 4px 8px;
    border-radius: 6px;
    background: #e2e8f0;
    color: #64748b;
}

.item-status.active {
    background: #dcfce7;
    color: #166534;
}

/* CTA Section */
.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: white;
}

.cta-description {
    font-size: 1.25rem;
    margin-bottom: 32px;
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.cta .btn-outline {
    border-color: white;
    color: white;
}

.cta .btn-outline:hover {
    background: white;
    color: #667eea;
}

/* Footer */
.footer {
    background: #1e293b;
    color: white;
    padding: 64px 0 32px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 48px;
}

.footer-brand .logo {
    color: white;
    margin-bottom: 16px;
}

.footer-description {
    color: #94a3b8;
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: white;
}

.footer-link {
    display: block;
    color: #94a3b8;
    text-decoration: none;
    margin-bottom: 8px;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 32px;
    text-align: center;
}

.footer-copyright {
    color: #94a3b8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
    
    .step::after {
        display: none;
    }
    
    .benefits-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .widget-row {
        grid-template-columns: 1fr;
    }
    
    .dashboard-nav {
        flex-wrap: wrap;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1.125rem;
    }
    
    .features,
    .how-it-works,
    .benefits,
    .cta {
        padding: 60px 0;
    }
    
    .feature-card {
        padding: 24px;
    }
    
    .btn-large {
        padding: 14px 28px;
        font-size: 16px;
    }
}

/* Упрощенные анимации */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-text,
.hero-visual {
    animation: fadeInUp 0.6s ease-out;
}

.hero-visual {
    animation-delay: 0.1s;
}

/* Упрощенные оптимизации для стабильности */
.feature-card, .step, .benefit, .widget {
    /* Убираем will-change для предотвращения конфликтов */
    transition: all 0.3s ease;
}

.btn {
    transition: all 0.2s ease;
}

/* Smooth scrolling for anchor links */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Отступ для фиксированной навигации */
}

/* Оптимизация производительности скролла */
body {
    scroll-behavior: smooth;
    overflow-x: hidden; /* Предотвращаем горизонтальный скролл */
}

/* Отключаем анимации для элементов, которые могут вызывать дерганность */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Focus styles for accessibility */
.btn:focus,
.nav-link:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Utility classes */
.text-center {
    text-align: center;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }