/* DPS RADAR - Основные стили */

/* Кастомные CSS переменные */
:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #eef2ff;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Базовые стили */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Утилиты для анимаций */
.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

.animate-slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

.animate-slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

/* Кастомные компоненты */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, var(--primary-dark), #4338ca);
}

.btn-primary:active {
    transform: translateY(0);
    animation: downloadPulse 0.3s ease;
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    padding: 1rem 2rem;
    border: 2px solid var(--primary-color);
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Hero секция */
.hero-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e2e8f0" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
}

/* Trust badges */
.trust-badge {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    border: 1px solid #f3f4f6;
    transition: all 0.3s ease;
    min-width: 180px;
    text-align: center;
}

.trust-badge:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.trust-badge-icon {
    width: 3rem;
    height: 3rem;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.trust-badge-content {
    flex: 1;
    text-align: center;
}

.trust-badge-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.trust-badge-plus {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-left: 0.125rem;
}

.trust-badge-percent {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-left: 0.125rem;
}

.trust-badge-label {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
    text-transform: lowercase;
}

/* Feature cards */
.feature-card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #f3f4f6;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), #8b5cf6);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 4rem;
    height: 4rem;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

/* How it works steps */
.step-item {
    text-align: center;
    position: relative;
}

.step-number {
    width: 5rem;
    height: 5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1.5rem;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
}

.step-item:hover .step-number {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-xl);
}

/* Review cards */
.review-card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid #f3f4f6;
}

.review-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.review-avatar {
    width: 3rem;
    height: 3rem;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-weight: bold;
    margin-right: 1rem;
}

/* FAQ accordion */
.faq-item {
    background: white;
    border-radius: 0.75rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid #f3f4f6;
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.faq-item.active {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-dark);
    transition: all 0.3s ease;
    border-bottom: 1px solid #f3f4f6;
    position: relative;
    user-select: none;
}

.faq-question:hover {
    color: var(--primary-color);
    background-color: #f9fafb;
}

.faq-question::after {
    content: '+';
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question::after {
    transform: translateY(-50%) rotate(45deg);
}

.faq-answer {
    max-height: 0;
    opacity: 0;
    padding: 0 1.5rem;
    color: var(--text-light);
    line-height: 1.7;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    opacity: 1;
    padding: 0 1.5rem 1.5rem;
}

/* Final CTA section */
.final-cta {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    position: relative;
    overflow: hidden;
}

.final-cta::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: pulse 4s infinite;
}

.final-cta-content {
    position: relative;
    z-index: 1;
}

/* Header and Navigation */
header {
    transition: all 0.3s ease;
}

header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-lg);
}

.nav-link {
    position: relative;
    transition: all 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

/* Mobile menu */
.mobile-menu {
    transform: translateY(-100%);
    opacity: 0;
    transition: all 0.3s ease;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
}

.mobile-menu-button.active svg {
    transform: rotate(90deg);
}

/* Contact Section */
.contact-item {
    text-align: center;
    padding: 2rem;
    border-radius: 1rem;
    transition: all 0.3s ease;
    border: 1px solid #f3f4f6;
    background: white;
}

.contact-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.contact-icon {
    width: 4rem;
    height: 4rem;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    transition: all 0.3s ease;
}

.contact-item:hover .contact-icon {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.contact-item a {
    text-decoration: none;
    transition: all 0.3s ease;
}

.contact-item a:hover {
    text-decoration: underline;
}

/* Download Notification */
.download-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: white;
    border: 1px solid #10b981;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-lg);
    padding: 1rem 1.5rem;
    z-index: 9999;
    transform: translateX(100%);
    opacity: 0;
    transition: all 0.3s ease;
    max-width: 400px;
}

.download-notification.show {
    transform: translateX(0);
    opacity: 1;
}

.notification-content {
    display: flex;
    align-items: center;
    font-weight: 500;
    color: #1f2937;
}

/* Download button states */
.btn-primary.downloading {
    position: relative;
    color: transparent;
}

.btn-primary.downloading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1.5rem;
    height: 1.5rem;
    margin: -0.75rem 0 0 -0.75rem;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.btn-primary.downloading::before {
    content: 'Скачивание...';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-weight: 600;
}

/* Footer */
.footer {
    background: #111827;
    color: white;
}

.footer-section h4 {
    color: #60a5fa;
    margin-bottom: 1rem;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: white;
}

/* Responsive design */
@media (max-width: 768px) {
    .hero-section h1 {
        font-size: 2.5rem;
    }
    
    .hero-section p {
        font-size: 1.125rem;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
    
    .step-number {
        width: 4rem;
        height: 4rem;
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .trust-badge {
        min-width: auto;
        width: 100%;
        max-width: 280px;
        padding: 1rem;
    }
    
    .trust-badge-number {
        font-size: 1.25rem;
    }
    
    .trust-badge-plus,
    .trust-badge-percent {
        font-size: 1rem;
    }
    
    .trust-badge-label {
        font-size: 0.75rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}

/* Utility classes */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Loading states */
.btn-loading {
    position: relative;
    color: transparent;
}

.btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1rem;
    height: 1rem;
    margin: -0.5rem 0 0 -0.5rem;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes downloadPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Focus states for accessibility */
.btn-primary:focus,
.btn-secondary:focus,
.feature-card:focus,
.review-card:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .btn-primary,
    .btn-secondary,
    .hero-section::before,
    .final-cta::before {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .feature-card,
    .review-card,
    .faq-item {
        border: 1px solid #ccc;
        box-shadow: none;
        break-inside: avoid;
    }
}