/* =============================================
   HEADER - Dark Tech Navigation
   ============================================= */

.navbar {
    background: rgba(10, 10, 26, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: 12px 0;
    transition: all 0.3s ease;
    z-index: 1000;
}

.navbar.scrolled {
    background: rgba(10, 10, 26, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.brand-logo {
    height: 45px;
    object-fit: contain;
}

.brand-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1rem;
}

.brand-text {
    font-size: 1.2rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.02em;
}

.navbar-nav .nav-link {
    color: #94a3b8;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.06);
}

.btn-nav-login {
    display: inline-flex;
    align-items: center;
    padding: 8px 20px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.85rem;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(99, 102, 241, 0.3);
}

.btn-nav-login:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
    color: #fff;
}

.navbar-toggler {
    color: #fff;
}

.navbar-toggler:focus {
    box-shadow: none;
}

/* Responsive */
@media (max-width: 991px) {
    .navbar-collapse {
        background: rgba(10, 10, 26, 0.98);
        border-radius: 16px;
        padding: 16px;
        margin-top: 8px;
        border: 1px solid rgba(255, 255, 255, 0.06);
    }

    .navbar-nav {
        gap: 4px;
    }

    .btn-nav-login {
        margin-top: 8px;
        text-align: center;
        justify-content: center;
    }
}