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

:root {
    --primary-bg: #0a0a0a;
    --secondary-bg: #1a1a1a;
    --accent-color: #007AFF;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: rgba(0, 0, 0, 0.3);
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-hover: rgba(255, 255, 255, 0.1);
    --gradient-blue: linear-gradient(135deg, #007AFF, #5856D6);
    --gradient-purple: linear-gradient(135deg, #5856D6, #AF52DE);
    --gradient-orange: linear-gradient(135deg, #FF9500, #FF6B35);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    background: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

.nav-logo span:first-child {
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

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

/* Language Selector */
.language-selector {
    position: relative;
}

.lang-btn {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    padding: 8px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.lang-btn:hover {
    background: var(--card-hover);
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    min-width: 120px;
}

.lang-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    padding: 8px 16px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.lang-option:hover {
    background: var(--card-hover);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, #1a1a2e 0%, #0a0a0a 70%);
}

.stars {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, #eee, transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(255,255,255,0.8), transparent),
        radial-gradient(1px 1px at 90px 40px, #fff, transparent),
        radial-gradient(1px 1px at 130px 80px, rgba(255,255,255,0.6), transparent),
        radial-gradient(2px 2px at 160px 30px, #ddd, transparent);
    background-repeat: repeat;
    background-size: 200px 150px;
    animation: sparkle 20s linear infinite;
}

@keyframes sparkle {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-150px); }
}

.hero-container {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    min-height: 80vh;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff, #a0a0a0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-weight: 400;
}

.cta-button {
    display: inline-block;
    background: var(--gradient-blue);
    color: white;
    padding: 16px 32px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 2s ease;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 122, 255, 0.3);
}

/* Phone Mockup */
.phone-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.iphone-mockup {
    width: 280px;
    height: 570px;
    background: linear-gradient(135deg, #2c2c2c, #1a1a1a);
    border-radius: 40px;
    padding: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    position: relative;
    z-index: 2;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #000000, #1a1a1a);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    border-radius: 32px;
    overflow: hidden;
    position: relative;
}

.phone-screen::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 140px;
    height: 6px;
    background: #333;
    border-radius: 3px;
    z-index: 1;
}

.app-interface {
    width: 100%;
    height: 100%;
}

/* Rocket Animation */
.rocket-animation {
    position: absolute;
    right: -50px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
}

.rocket {
    font-size: 3rem;
    animation: rocket-launch 4s ease-in-out infinite;
}

.rocket-trail {
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100px;
    background: linear-gradient(to bottom, rgba(255, 165, 0, 0.8), transparent);
    border-radius: 2px;
    animation: trail-glow 4s ease-in-out infinite;
}

@keyframes rocket-launch {
    0%, 100% {
        transform: translateY(-50%) translateX(0) rotate(-45deg);
    }
    50% {
        transform: translateY(-70%) translateX(20px) rotate(-45deg);
    }
}

@keyframes trail-glow {
    0%, 100% {
        opacity: 0.5;
        height: 80px;
    }
    50% {
        opacity: 1;
        height: 120px;
    }
}

/* Advantages Section */
.advantages {
    padding: 120px 0;
    background: linear-gradient(135deg, #1a1a1a, #0a0a0a);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    background: linear-gradient(135deg, #ffffff, #a0a0a0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.advantage-card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-blue);
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 20px;
}

.advantage-card:hover::before {
    opacity: 0.1;
}

.advantage-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 122, 255, 0.2);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    position: relative;
    z-index: 2;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
    position: relative;
    z-index: 2;
}

.card-summary {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    position: relative;
    z-index: 2;
}

.card-details {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
}

.advantage-card.expanded .card-details {
    opacity: 1;
    max-height: 200px;
}

.card-details p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* FAQ Section */
.faq {
    padding: 120px 0;
    background: var(--primary-bg);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 10px;
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 30px 0;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.faq-question:hover {
    color: var(--accent-color);
}

.faq-arrow {
    transition: transform 0.3s ease;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding-bottom: 30px;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 1rem;
}

/* Contact Section */
.contact {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, #1a1a1a, #0a0a0a);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-item {
    text-align: center;
    padding: 30px;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
    background: var(--card-hover);
}

.contact-item h3 {
    color: var(--text-primary);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 15px;
}

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

.contact-item a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: #ffffff;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        height: 60px;
        padding: 0 15px;
    }
    
    .nav-left {
        gap: 20px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .iphone-mockup {
        width: 240px;
        height: 490px;
    }
    
    .rocket-animation {
        right: -30px;
        top: 40%;
    }
    
    .rocket {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .advantage-card {
        padding: 30px 20px;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .cta-button {
        padding: 14px 28px;
        font-size: 1rem;
    }
    
    .iphone-mockup {
        width: 200px;
        height: 410px;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .advantages {
        padding: 80px 0;
    }
    
    .faq {
        padding: 80px 0;
    }
    
    .contact {
        padding: 80px 0 40px;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--primary-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}