* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.site-header {
    position: sticky;
    top: 0;
    left: 0;   
    width: 100%;    
    z-index: 1000;
    
    display: flex;
    justify-content: space-between;
    align-items: center;
    
    padding: 1rem 1rem;
    
    background: #161616ed;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(12px);
    
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.logo img {
    height: 50px; 
    width: auto;
    display: block;
}

.logo:hover {
    transform: scale(1.05);
}

.logo:active {
    transform: scale(.95);
}

/* Nav & Contact Wrapper */
.nav-wrapper {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.main-nav {
    display: flex;
    gap: 2.5rem;
}

.main-nav a {
    text-decoration: none;
    color: #b8b8b8;
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif; 
    font-weight: 600;
    font-size: 1.2rem;
    transition: color 0.3s ease;
}

.main-nav a:hover {
    color: #ffffff;
}

/* Contact Button */
.contact-btn {
    text-decoration: none;
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif; 
    background-color: #ffffff;
    color: #000000;
    padding: 0.7rem 2rem;
    border-radius: 10px;
    font-weight: 700;
    font-size: 1rem;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.contact-btn:hover {
    transform: scale(1.05);
}

.contact-btn:active {
    transform: scale(.95);
}

/* Hamburger Icon Styling */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 25px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

.hamburger .bar {
    height: 3px;
    width: 100%;
    background-color: #ffffff;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hamburger.active .bar:nth-child(1),
.hamburger.active .bar:nth-child(3) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger.active .bar:nth-child(2) {
    transform: translateY(0);
}

@media (max-width: 768px) {
    .hamburger {
        display: flex; 
    }

    .nav-wrapper {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 0;
        
        background: #161616ed;
        backdrop-filter: blur(6px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: max-height 0.4s ease, opacity 0.3s ease;
    }

    .main-nav {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        width: 100%;
    }

    .main-nav a {
        display: block;
        text-align: left;
        padding: 1rem 1.5rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        width: 100%;
    }

    .nav-wrapper .contact-btn {
        display: block;
        width: calc(100% - 3rem);
        margin: 1.25rem 1.5rem;
        text-align: center;
    }

    .nav-wrapper.active {
        max-height: 400px;
        opacity: 1;
    }
}