/* Modern CSS Variables */
:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --accent-color: #0088cc;
    --telegram-color: #229ED9;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-text: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    --bg-dark: #0f0f23;
    --bg-light: #1a1a2e;
    --bg-white: #ffffff;
    --bg-gray: #f8fafc;
    
    --text-primary: #1a1a2e;
    --text-secondary: #64748b;
    --text-light: #ffffff;
    
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.3);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Animated Background */
.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    overflow: hidden;
    background: linear-gradient(to bottom, #f0f2ff 0%, #fef3ff 100%);
}

.gradient-sphere {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float-sphere 20s infinite ease-in-out;
}

.sphere-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.sphere-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    bottom: -100px;
    right: -100px;
    animation-delay: 5s;
}

.sphere-3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    top: 50%;
    left: 50%;
    animation-delay: 10s;
}

/* Header */
.header-glass {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    transition: var(--transition);
}

.header-glass .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    transition: var(--transition);
}

.logo:hover {
    transform: translateY(-2px);
}

.logo-icon {
    height: 40px;
    width: auto;
}

nav {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-menu a {
    color: var(--text-secondary);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

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

.nav-menu a.nav-highlight {
    color: var(--primary-color);
    font-weight: 600;
}

.language-selector select {
    background: var(--bg-white);
    color: var(--text-primary);
    border: 2px solid var(--glass-border);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.language-selector select:hover {
    border-color: var(--primary-color);
}

.language-selector select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.mobile-menu-toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
}

/* Hero Section */
.hero-modern {
    padding: 10rem 0 6rem;
    position: relative;
    overflow: hidden;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-xl);
    margin-bottom: 2rem;
    animation: fadeInDown 0.8s ease;
}

.badge-icon {
    font-size: 1.2rem;
}

.hero-content h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    animation: fadeInUp 0.8s ease;
}

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

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.8s ease 0.2s;
    animation-fill-mode: both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 4rem;
    animation: fadeInUp 0.8s ease 0.4s;
    animation-fill-mode: both;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-xl);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.cta-button.primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.cta-button.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.4);
}

.cta-button.telegram {
    background: var(--telegram-color);
    color: white;
    box-shadow: 0 4px 20px rgba(34, 158, 217, 0.3);
}

.cta-button.telegram:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(34, 158, 217, 0.4);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    max-width: 500px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease 0.6s;
    animation-fill-mode: both;
}

.stat {
    text-align: center;
}

.stat h3 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat p {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 100px;
    margin-top: 4rem;
}

.waveform-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    height: 100%;
}

.waveform {
    width: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
    animation: wave-animation 1s ease-in-out infinite;
}

.waveform:nth-child(1) { height: 40px; animation-delay: 0s; }
.waveform:nth-child(2) { height: 60px; animation-delay: 0.1s; }
.waveform:nth-child(3) { height: 80px; animation-delay: 0.2s; }
.waveform:nth-child(4) { height: 60px; animation-delay: 0.3s; }
.waveform:nth-child(5) { height: 40px; animation-delay: 0.4s; }

/* Demo Section */
.demo-section {
    padding: 6rem 0;
    background: rgba(99, 102, 241, 0.05);
}

.demo-content {
    max-width: 600px;
    margin: 0 auto;
}

.demo-card {
    text-align: center;
    padding: 3rem;
    position: relative;
    overflow: hidden;
}

.demo-icon {
    width: 80px;
    height: 80px;
    background: var(--telegram-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    animation: pulse 2s infinite;
}

.demo-card h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.demo-card p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.demo-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.demo-feature {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.demo-feature i {
    color: var(--primary-color);
}

.demo-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--telegram-color);
    color: white;
    padding: 1rem 2.5rem;
    border-radius: var(--radius-xl);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(34, 158, 217, 0.3);
}

.demo-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(34, 158, 217, 0.4);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-header .subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* Glass Card */
.glass-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.glass-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

/* Features Section */
.features-modern {
    padding: 6rem 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.feature-card.featured {
    border: 2px solid var(--primary-light);
    transform: scale(1.05);
}

.featured-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gradient-primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.feature-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    border-radius: var(--radius-md);
}

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

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* About Section */
.about-modern {
    padding: 6rem 0;
    background: rgba(99, 102, 241, 0.02);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.about-text p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.about-features {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    font-weight: 500;
}

.about-feature i {
    color: var(--primary-color);
}

.about-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-logo {
    width: 200px;
    height: auto;
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.floating-card {
    position: absolute;
    padding: 1rem 1.5rem;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: float 6s ease-in-out infinite;
}

.card-1 { top: 0; left: 0; animation-delay: 0s; }
.card-2 { top: 50%; right: 0; animation-delay: 2s; }
.card-3 { bottom: 0; left: 20%; animation-delay: 4s; }

/* Contact Section */
.contact-modern {
    padding: 6rem 0;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info {
    display: grid;
    gap: 1.5rem;
}

.contact-card {
    padding: 2rem;
    text-align: center;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.2rem;
}

.contact-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.contact-card a,
.contact-card p {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

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

.contact-map {
    padding: 0;
    overflow: hidden;
}

/* Footer */
.footer-modern {
    background: var(--bg-light);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-logo-icon {
    height: 40px; /* Match header logo size */
    width: auto;
}

.footer-logo span {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links h4,
.footer-social h4 {
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

/* Floating Telegram Widget */
.telegram-widget {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 999;
}

.telegram-float {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--telegram-color);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-xl);
    text-decoration: none;
    font-weight: 600;
    box-shadow: 0 4px 20px rgba(34, 158, 217, 0.4);
    transition: var(--transition);
}

.telegram-float:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(34, 158, 217, 0.5);
}

.telegram-float i {
    font-size: 1.5rem;
}

.widget-text {
    display: inline-block;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Privacy and Terms Pages */
.privacy-section {
    padding: 6rem 0 4rem;
    min-height: 100vh;
}

.privacy-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 3rem;
    background: rgba(255, 255, 255, 0.95);
}

.privacy-content {
    margin-top: 3rem;
}

.privacy-section-item {
    margin-bottom: 3rem;
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.privacy-section-item:nth-child(1) { animation-delay: 0.1s; }
.privacy-section-item:nth-child(2) { animation-delay: 0.2s; }
.privacy-section-item:nth-child(3) { animation-delay: 0.3s; }
.privacy-section-item:nth-child(4) { animation-delay: 0.4s; }
.privacy-section-item:nth-child(5) { animation-delay: 0.5s; }
.privacy-section-item:nth-child(6) { animation-delay: 0.6s; }
.privacy-section-item:nth-child(7) { animation-delay: 0.7s; }

.privacy-section-item h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 700;
}

.privacy-section-item p {
    line-height: 1.8;
    color: var(--text-primary);
    margin-bottom: 1rem;
    opacity: 0.8;
}

.privacy-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.privacy-list li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 0.8rem;
    line-height: 1.7;
    color: var(--text-primary);
    opacity: 0.8;
}

.privacy-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.5rem;
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--primary-color);
}

.contact-info-box {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 1rem;
}

.contact-info-box p {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-info-box i {
    color: var(--primary-color);
}

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

.contact-info-box a:hover {
    color: var(--secondary-color);
}

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

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes float-sphere {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

@keyframes wave-animation {
    0%, 100% { height: 40px; opacity: 0.3; }
    50% { height: 80px; opacity: 1; }
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(34, 158, 217, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(34, 158, 217, 0); }
    100% { box-shadow: 0 0 0 0 rgba(34, 158, 217, 0); }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .about-content,
    .contact-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .about-visual {
        min-height: 300px;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        padding: 2rem;
        flex-direction: column;
        gap: 1rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
        margin: 0 auto 3rem;
    }
    
    .cta-button {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .floating-card {
        display: none;
    }
}

@media (max-width: 480px) {
    .telegram-widget {
        bottom: 1rem;
        right: 1rem;
    }
    
    .widget-text {
        display: none;
    }
    
    .telegram-float {
        padding: 1rem;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 1.75rem;
    }
    
    .demo-card {
        padding: 2rem 1rem;
    }
}