*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI',
    Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue',
    sans-serif;
}

html{
    scroll-behavior: smooth;
}

body{
    background-color: #0f172a;
    color: #f8fafc;
    line-height: 1.7;
}

/* Navbar */

.navbar{
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 8%;
    position: sticky;
    top: 0;
    background-color: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #1e293b;
    z-index: 1000;
}

.logo{
    font-size: 1.6rem;
    font-weight: 700;
    color: #38bdf8;
}

.nav-links{
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a{
    text-decoration: none;
    color: #cbd5e1;
    transition: 0.3s;
}

.nav-links a:hover{
    color: #38bdf8;
}

/* Sections */

section{
    padding: 5rem 8%;
}

section h2{
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
}

/* Hero */

.hero{
    min-height: 90vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.hero-content{
    max-width: 850px;
}

.hero-content h1{
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.hero-content p{
    font-size: 1.1rem;
    color: #cbd5e1;
    margin-bottom: 2rem;
}

.btn{
    display: inline-block;
    text-decoration: none;
    background: #38bdf8;
    color: #0f172a;
    padding: 0.9rem 1.8rem;
    border-radius: 10px;
    font-weight: 600;
    transition: 0.3s;
}

.btn:hover{
    transform: translateY(-3px);
}

/* Cards */

.card{
    background-color: #1e293b;
    border: 1px solid #334155;
    padding: 2rem;
    border-radius: 16px;
    max-width: 1000px;
    margin: auto;
}

.card p{
    margin-bottom: 1rem;
}

.card ul{
    padding-left: 1.2rem;
}

.card li{
    margin-bottom: 0.7rem;
}

/* Features */

.features-grid{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.feature-card{
    background-color: #1e293b;
    border: 1px solid #334155;
    border-radius: 16px;
    padding: 2rem;
    transition: 0.3s;
}

.feature-card:hover{
    transform: translateY(-5px);
    border-color: #38bdf8;
}

.feature-card h3{
    margin-bottom: 1rem;
    color: #38bdf8;
}

/* Contact Section */

#contact .card p{
    margin-bottom: 0.8rem;
}

/* Footer */

footer{
    padding: 2rem;
    text-align: center;
    border-top: 1px solid #1e293b;
    color: #94a3b8;
}

/* Responsive */

@media (max-width: 768px){

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

    .nav-links{
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-content h1{
        font-size: 2.3rem;
    }

    .hero-content p{
        font-size: 1rem;
    }

    section{
        padding: 4rem 5%;
    }
}