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


body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

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

header {
    padding: 20px 0;
    position: relative;
    z-index: 10;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 28px;
    font-weight: 800;
    color: white;
    display: flex;
    align-items: center;
    gap: 10px;
}

.no-no-logo::before {
    content: "🛡️";
    font-size: 32px;
}

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

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    opacity: 0.9;
}

.nav-links a:hover {
    opacity: 1;
    transform: translateY(-2px);
}

.hero {
    text-align: center;
    padding: 80px 0 120px;
    position: relative;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: clamp(48px, 8vw, 72px);
    font-weight: 900;
    color: white;
    margin-bottom: 20px;
    line-height: 1.1;
    animation: fadeInUp 1s ease;
}

.hero p {
    font-size: 24px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease 0.2s backwards;
}

.download-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.4s backwards;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    background: rgba(255, 255, 255, 0.15);
    color: white;
    text-decoration: none;
    border-radius: 16px;
    font-weight: 600;
    font-size: 18px;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.6s ease;
}

.download-btn:hover::before {
    left: 100%;
}

.download-btn:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.download-btn img {
    width: 24px;
    height: 24px;
}

.features {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 32px;
    padding: 60px 40px;
    margin: 60px 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInUp 1s ease 0.6s backwards;
}

.contact {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 32px;
    padding: 60px 40px;
    margin: 60px 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInUp 1s ease 0.6s backwards;
}



.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.feature {
    text-align: center;
    padding: 30px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.feature:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.feature h3 {
    font-size: 24px;
    color: white;
    margin-bottom: 15px;
    font-weight: 700;
}

.feature p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.features h2 {
    font-size: 42px;
    color: white;
    text-align: center;
    font-weight: 800;
    margin-bottom: 20px;
}

.features-subtitle {
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    font-size: 20px;
    margin-bottom: 40px;
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.floating-element {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 20s infinite linear;
}

.floating-element:nth-child(1) {
    width: 100px;
    height: 100px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 15%;
    animation-delay: -5s;
}

.floating-element:nth-child(3) {
    width: 80px;
    height: 80px;
    top: 80%;
    left: 20%;
    animation-delay: -10s;
}

.floating-element:nth-child(4) {
    width: 120px;
    height: 120px;
    top: 40%;
    right: 30%;
    animation-delay: -15s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.3;
    }

    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 0.1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero {
        padding: 60px 0 80px;
    }

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .download-btn {
        width: 280px;
        justify-content: center;
    }

    .features {
        margin: 40px 10px;
        padding: 40px 20px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}