body {
    margin: 0;
    font-family: 'Poppins', sans-serif;
    background: #0d0d0d;
    color: white;
    overflow-x: hidden;
}

/* HERO */
.hero {
    height: 100vh;
    background: linear-gradient(to bottom, #000000cc, #000000dd),
    url('https://images.unsplash.com/photo-1518770660439-4636190af475?auto=format&fit=crop&w=1400&q=80') 
    center/cover no-repeat;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.title {
    font-size: 4rem;
    letter-spacing: 2px;
}
.subtitle {
    font-size: 1.4rem;
    opacity: 0.8;
}
.btn {
    margin-top: 20px;
    padding: 12px 28px;
    background: cyan;
    color: black;
    border-radius: 50px;
    font-weight: bold;
    text-decoration: none;
}

/* SECTION */
.section {
    padding: 80px 40px;
    text-align: center;
}
.section-title {
    font-size: 2.8rem;
    margin-bottom: 40px;
}

.cards {
    display: flex;
    flex-wrap: wrap;
    gap: 25px;
    justify-content: center;
}

/* CARD */
.card {
    background: #1a1a1a;
    padding: 25px;
    width: 280px;
    border-radius: 20px;
    transition: 0.3s;
    text-align: center;
    border: 1px solid #222;
}
.card:hover {
    transform: translateY(-12px);
    box-shadow: 0 10px 30px rgba(0,255,255,0.4);
}
.icon {
    width: 70px;
    height: 70px;
    margin-bottom: 15px;
}

/* FOOTER */
.footer {
    padding: 20px;
    background: #000;
    text-align: center;
    opacity: 0.8;
}