/* ===== Base Styles ===== */
body {
    font-family: 'Inter', 'Roboto', sans-serif;
    background-color: #0f172a; /* Deep navy tech tone */
    color: #e2e8f0; /* Light gray text */
    margin: 0;
    padding: 0;
    line-height: 1.7;
    overflow-x: hidden;
}

/* ===== Navbar ===== */
.navbar-brand {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(90deg, #3b82f6, #06b6d4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 0.5px;
    transition: opacity 0.3s ease;
}

.navbar-brand:hover {
    opacity: 0.8;
}

/* ===== Hero Section ===== */
.hero {
    background: radial-gradient(circle at top left, #1e3a8a, #0f172a 70%);
    color: #f8fafc;
    text-align: center;
    padding: 8rem 2rem 6rem;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(59,130,246,0.3), transparent 70%);
    border-radius: 50%;
    filter: blur(40px);
    z-index: 0;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.hero p {
    font-size: 1.25rem;
    color: #cbd5e1;
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

/* ===== Main Content ===== */
main {
    min-height: calc(100vh - 200px);
    padding: 3rem 2rem;
}

/* ===== Buttons ===== */
.btn-primary {
    background: linear-gradient(90deg, #3b82f6, #06b6d4);
    border: none;
    border-radius: 0.5rem;
    padding: 0.75rem 1.75rem;
    font-weight: 600;
    color: #fff;
    letter-spacing: 0.3px;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4);
}

/* ===== Footer ===== */
footer {
    background-color: #0b1120;
    color: #94a3b8;
    text-align: center;
    padding: 2rem 0;
    font-size: 0.9rem;
    margin-top: auto;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* ===== Social Links ===== */
.social-links a {
    color: #94a3b8;
    margin: 0 0.75rem;
    font-size: 1.4rem;
    transition: all 0.3s ease;
}

.social-links a:hover {
    color: #06b6d4;
    transform: translateY(-2px);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero h1, .hero p, .btn-primary {
    animation: fadeInUp 0.8s ease forwards;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.4rem;
    }
    .hero p {
        font-size: 1rem;
    }
    .btn-primary {
        padding: 0.6rem 1.4rem;
    }
}