:root {
        --primary-color: #007BFF;
        --dark-color: #333;
        --light-color: #f4f4f4;
        --grey-color: #555;
        --white-color: #fff;
        --border-color: #ddd;
    }

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

    body {
        font-family: 'Poppins', sans-serif;
        line-height: 1.6;
        color: var(--dark-color);
        background-color: var(--white-color);
    }

    .container {
        max-width: 1100px;
        margin: 0 auto;
        padding: 0 20px;
    }

    h1, h2 {margin-bottom: 20px;}

    section {padding: 60px 0;}

    .page {display: none;}


    /* Header and Navigation */
    .header {
        background-color: var(--white-color);
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        position: sticky;
        top: 0;
        z-index: 100;
    }

    .navbar {
        display: flex;
        justify-content: space-between;
        align-items: center;
        height: 70px;
    }

    .nav-image-logo{
        width: 50px;
        height: 50px;
    }

    .nav-menu {
        display: flex;
        list-style: none;
        gap: 25px;
    }

    .nav-link {
        text-decoration: none;
        color: var(--dark-color);
        font-weight: 600;
        transition: color 0.3s ease;
    }

    .nav-link:hover {color: var(--primary-color);}

    .navMenuButtonForMobile {
        display: none;
        cursor: pointer;
        background: none;
        border: none;
    }

    .bar {
        display: block;
        width: 25px;
        height: 3px;
        margin: 5px auto;
        -webkit-transition: all 0.3s ease-in-out;
        transition: all 0.3s ease-in-out;
        background-color: var(--dark-color);
    }

    /* Welcome Section */
    .welcome-section {
        background-color: var(--light-color);
        text-align: center;
        min-height: 300px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .welcome-section h1 {
        font-size: 2.5rem;
    }

    .headquarters-section {
        text-align: center;
    }

    .locations {
        display: flex;
        justify-content: space-around;
        align-items: center;
        margin-top: 40px;
        gap: 20px;
        flex-wrap: wrap;
    }

    .location-circle {
        width: 150px;
        height: 150px;
        border: 3px solid var(--border-color);
        border-radius: 50%;
        display: flex;
        justify-content: center;
        align-items: center;
        font-weight: 600;
        font-size: 18px;
        transition: all 0.3s ease;
    }

    .location-circle:hover {
        background-color: var(--primary-color);
        color: var(--white-color);
        border-color: var(--primary-color);
    }

    .portfolio-section {text-align: center;}



    .message-us-section {background-color: var(--light-color);}

    .form-container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 40px;
        background: var(--white-color);
        padding: 30px;
        border-radius: 8px;
        box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    }

    .form-group {margin-bottom: 20px;}

    .form-group label {
        display: block;
        margin-bottom: 8px;
        font-weight: 600;
    }

    .form-group input[type="text"],
    .form-group input[type="date"],
    .form-group textarea {
        width: 100%;
        padding: 10px;
        border: 1px solid var(--border-color);
        border-radius: 5px;
        font-family: 'Poppins', sans-serif;
    }

    .radio-group {
        display: flex;
        align-items: center;
        gap: 15px;
    }

    .radio-group input[type="radio"] {margin-right: 5px;}

    .submit-btn {
        width: 100%;
        padding: 12px;
        background-color: var(--primary-color);
        color: var(--white-color);
        border: none;
        border-radius: 5px;
        cursor: pointer;
        font-size: 16px;
        font-weight: 600;
        transition: background-color 0.3s ease;
    }

    .submit-btn:hover {background-color: #0056b3;}

    .form-output {
        background-color: var(--dark-color);
        color: var(--white-color);
        padding: 20px;
        border-radius: 8px;
    }

    .form-output p {
        margin-bottom: 10px;
        word-wrap: break-word;
    }

    /* Profile Page: Banner */
    .banner-section {
        height: 40vh;
        background-image: url('https://placehold.co/1920x1080/007BFF/FFFFFF?text=Naufal+Ramzi');
        background-size: cover;
        background-position: center;
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--white-color);
        text-align: center;

    }

    .banner-overlay {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.7);
        display: flex;
        align-items: center;
        justify-content: center;

    }

    .banner-section h1 {
        font-size: 3rem;
        margin: 0;
    }

    /* Profile Page: Content */
    .profile-content {padding: 60px 0;}

    .profile-card {
        background: var(--white-color);
        padding: 30px;
        margin-bottom: 30px;
        border-radius: 8px;
        box-shadow: 0 4px 10px rgba(0,0,0,0.08);
    }

    .profile-card h2 {color: var(--primary-color);}

    /* Footer */
    .footer {
        background-color: var(--dark-color);
        color: var(--white-color);
        text-align: center;
        padding: 20px 0;
    }



    @media (max-width: 768px) {
        .nav-menu {
            position: fixed;
            left: -100%;
            top: 70px;
            flex-direction: column;
            background-color: var(--white-color);
            width: 100%;
            text-align: center;
            transition: 0.3s;
            box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        }

        .nav-menu.active {left: 0;}

        .nav-item {padding: 1.5rem 0;}

        .navMenuButtonForMobile {display: block;}

        .navMenuButtonForMobile.active .bar:nth-child(2) {opacity: 0;}

        .navMenuButtonForMobile.active .bar:nth-child(1) {transform: translateY(8px) rotate(45deg);}

        .navMenuButtonForMobile.active .bar:nth-child(3) {transform: translateY(-8px) rotate(-45deg);}

        .form-container {grid-template-columns: 1fr;}

        .welcome-section h1 {font-size: 2rem;}

        .banner-section h1 {font-size: 2.2rem;}
    }