/* RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background: #0f172a;
    color: #e2e8f0;
}

/* HERO */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0,0,50,0.8), rgba(0,0,70,0.9)),
                url('https://images.unsplash.com/photo-1526378722484-bd91ca387e72') center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero h1 {
    font-size: 3.2rem;
    color: #60a5fa;
}

.hero p {
    margin: 15px 0 25px;
    color: #cbd5f5;
}

.btn {
    background: #2563eb;
    padding: 12px 28px;
    border-radius: 30px;
    text-decoration: none;
    color: white;
    transition: 0.3s;
}

.btn:hover {
    background: #1d4ed8;
}

/* SECTION */
.section {
    padding: 80px 20px;
    text-align: center;
    max-width: 1100px;
    margin: auto;
}

.section h2 {
    margin-bottom: 10px;
}

/* DARK */
.dark {
    background: #1e293b;
    border-radius: 20px;
    margin: 40px auto;
}

/* GRID */
.grid {
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 30px;
}

.card {
    background: #334155;
    padding: 25px;
    border-radius: 15px;
    width: 260px;
    transition: 0.3s;
}

.card i {
    font-size: 28px;
    color: #60a5fa;
    margin-bottom: 10px;
}

.card:hover {
    transform: translateY(-6px);
    background: #3b82f6;
}

/* SKILLS */
.skills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
}

.skills span {
    background: #334155;
    padding: 10px 18px;
    border-radius: 20px;
    border: 1px solid #60a5fa;
    transition: 0.3s;
}

.skills span:hover {
    background: #2563eb;
}

/* CTA */
.cta {
    background: #2563eb;
    padding: 70px 20px;
    text-align: center;
    border-radius: 20px;
    margin: 50px auto;
}

.cta button {
    margin-top: 20px;
    padding: 12px 30px;
    border: none;
    background: white;
    color: #2563eb;
    border-radius: 30px;
    cursor: pointer;
}

/* BACK */
.back {
    text-align: center;
    margin: 40px;
}

.back a {
    color: #60a5fa;
    text-decoration: none;
}