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

:root {
    --primary: #1f75fe;
    --primary-dark: #1a5fd9;
    --secondary: #ff6b6b;
    --bg: #0a0a1a;
    --bg-card: #12122a;
    --text: #ffffff;
    --muted: #9999bb;
    --border: #2a2a4a;
}

body {
    font-family: 'Nunito', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

.stars-bg {
    position: fixed;
    inset: 0;
    background: 
        radial-gradient(2px 2px at 20px 30px, white, transparent),
        radial-gradient(2px 2px at 40px 70px, white, transparent),
        radial-gradient(1px 1px at 90px 40px, white, transparent),
        radial-gradient(2px 2px at 160px 120px, white, transparent),
        radial-gradient(1px 1px at 230px 80px, white, transparent),
        radial-gradient(1px 1px at 300px 150px, white, transparent);
    background-repeat: repeat;
    background-size: 350px 200px;
    opacity: 0.3;
    pointer-events: none;
    z-index: -1;
}

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

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.header-scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text);
}

.nav { 
    display: flex; 
    gap: 2rem; 
    align-items: center;
}

.nav-link { 
    color: var(--muted); 
    text-decoration: none; 
    font-weight: 600; 
    transition: color 0.3s;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s;
}

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

.burger-menu {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.burger-menu span {
    width: 25px;
    height: 3px;
    background: var(--text);
    border-radius: 3px;
    transition: all 0.3s;
}

.burger-active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.burger-active span:nth-child(2) {
    opacity: 0;
}

.burger-active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.btn-header {
    background: var(--primary);
    color: white;
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s;
    white-space: nowrap;
}

.btn-header:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(31, 117, 254, 0.4);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(31, 117, 254, 0.3);
}

.btn-white { background: white; color: var(--bg); }
.btn-lg { padding: 1.25rem 2.5rem; font-size: 1.1rem; }

.hero {
    padding: 10rem 0 5rem;
    text-align: center;
}

.hero-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    background: rgba(31, 117, 254, 0.15);
    color: var(--primary);
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(31, 117, 254, 0.3);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.75rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.hero-desc {
    font-size: 1.2rem;
    color: var(--muted);
    max-width: 700px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.hero-feature {
    padding: 0.75rem 1.5rem;
    background: rgba(31, 117, 254, 0.1);
    border: 1px solid rgba(31, 117, 254, 0.2);
    border-radius: 50px;
    color: var(--text);
    font-weight: 600;
    font-size: 0.95rem;
}

.features, .how-section, .download, .faq { padding: 5rem 0; }

h2 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 3rem;
    font-weight: 800;
}

.section-desc {
    text-align: center;
    color: var(--muted);
    margin-bottom: 2rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s;
}

.feature-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.feature-card .icon { font-size: 3rem; margin-bottom: 1rem; }
.feature-card h3 { margin-bottom: 0.5rem; font-size: 1.1rem; }
.feature-card p { color: var(--muted); font-size: 0.9rem; }

.steps {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.step {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    flex: 1;
    min-width: 200px;
    max-width: 280px;
}

.step-icon { font-size: 2rem; margin-bottom: 0.5rem; }
.step-num {
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    margin: 0 auto 1rem;
}

.step-arrow { font-size: 2rem; color: var(--primary); }

.step h3 { margin-bottom: 0.5rem; }
.step p { color: var(--muted); font-size: 0.9rem; }

.download { text-align: center; }

.platforms {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.platform {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.5rem 2.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.platform .icon { font-size: 2rem; }

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

.faq-item {
    border-bottom: 1px solid var(--border);
    margin-bottom: 0.5rem;
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    color: var(--text);
    padding: 1.5rem 0;
    text-align: left;
    cursor: pointer;
    font-weight: 700;
    font-size: 1.05rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    transition: color 0.3s;
}

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

.faq-arrow {
    color: var(--primary);
    font-size: 0.9rem;
    transition: transform 0.3s;
    flex-shrink: 0;
}

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

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

.faq-item.faq-active .faq-answer {
    max-height: 500px;
    padding-bottom: 1.5rem;
}

.faq-answer p {
    color: var(--muted);
    line-height: 1.7;
    padding-top: 0.5rem;
}

.cta {
    padding: 4rem 0;
    text-align: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 24px;
    margin: 2rem;
}

.cta h2 { color: white; margin-bottom: 0.5rem; }
.cta p { color: rgba(255,255,255,0.9); margin-bottom: 2rem; }

.footer {
    padding: 3rem 0;
    text-align: center;
    border-top: 1px solid var(--border);
}

.footer p { color: var(--muted); margin-bottom: 0.5rem; }

/* Benefits Section */
.benefits-section {
    padding: 5rem 0;
    background: rgba(18, 18, 42, 0.5);
}

.section-intro {
    text-align: center;
    color: var(--muted);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 3rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.benefit-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s;
    opacity: 0;
    transform: translateY(20px);
}

.benefit-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.benefit-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(31, 117, 254, 0.2);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.benefit-card h3 {
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

.benefit-card p {
    color: var(--muted);
    line-height: 1.7;
}

/* Quick Start Section */
.quick-start-section {
    padding: 5rem 0;
}

.quick-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.quick-step {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s;
}

.quick-step.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.quick-step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
    flex-shrink: 0;
}

.quick-step-content {
    flex: 1;
}

.quick-step-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.quick-step h3 {
    margin-bottom: 0.75rem;
    font-size: 1.5rem;
}

.quick-step p {
    color: var(--muted);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.quick-step-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.quick-step-link:hover {
    color: var(--secondary);
}

/* Devices Section */
.devices-section {
    padding: 5rem 0;
    background: rgba(18, 18, 42, 0.5);
}

.devices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.device-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s;
    opacity: 0;
    transform: translateY(20px);
}

.device-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.device-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.device-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.device-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.device-card p {
    color: var(--muted);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    line-height: 1.6;
}

.device-btn {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.device-btn:hover {
    color: var(--secondary);
}

/* Stats Section */
.stats-section {
    padding: 4rem 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-box {
    padding: 2rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--muted);
    font-size: 0.95rem;
}

/* FAQ Section */
.faq-section {
    padding: 5rem 0;
}

/* CTA Section */
.cta-section {
    padding: 5rem 0;
}

.cta-box {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 24px;
    padding: 4rem;
    text-align: center;
    margin: 0 2rem;
}

.cta-box h2 {
    color: white;
    margin-bottom: 1rem;
}

.cta-box p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

/* Footer */
.footer {
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border);
    background: rgba(10, 10, 26, 0.5);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-brand {
    margin-bottom: 1rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: var(--muted);
    line-height: 1.7;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.footer-column h4 {
    color: var(--text);
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.footer-column p {
    color: var(--muted);
    margin-bottom: 0.5rem;
    line-height: 1.7;
}

.footer-column a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-column a:hover {
    color: var(--secondary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    color: var(--muted);
}

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

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* Responsive */
@media (max-width: 768px) {
    .burger-menu {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 26, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 2rem;
        transform: translateX(-100%);
        transition: transform 0.3s;
        border-bottom: 1px solid var(--border);
    }

    .nav-active {
        transform: translateX(0);
    }

    .hero-title { 
        font-size: 2.5rem; 
    }

    .hero-subtitle {
        font-size: 1.5rem;
    }

    .hero-features {
        flex-direction: column;
        gap: 1rem;
    }

    .benefits-grid,
    .quick-steps,
    .devices-grid {
        grid-template-columns: 1fr;
    }

    .quick-step {
        flex-direction: column;
        text-align: center;
    }

    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .cta-box {
        margin: 0 1rem;
        padding: 3rem 2rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 8rem 0 3rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-desc {
        font-size: 1rem;
    }

    section {
        padding: 3rem 0;
    }

    .container {
        padding: 0 1rem;
    }

    .stats-row {
        grid-template-columns: 1fr;
    }
}