body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background: #f3f3f3;
}

.top-nav {
    background-color: #034a26;
    color: #fff;
    padding: 12px 20px;
    text-align: right;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.top-nav a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 4px;
    transition: background 0.2s;
}

.top-nav a:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.header {
    background-color: #046334;
    color: #fff;
    padding: 40px 20px 30px 20px;
    text-align: center;
}

.header h1 {
    margin: 0;
    font-size: 2.5em;
    font-weight: bold;
}

.header p {
    margin: 15px 0 0 0;
    font-size: 1.1em;
}

.content {
    max-width: 700px;
    margin: 40px auto;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
    padding: 35px 30px;
}

.cta {
    margin-top: 24px;
    padding: 15px;
    background-color: #e5f9ee;
    border-radius: 8px;
    font-size: 1.08em;
}

.btn-login {
    display: inline-block;
    margin-top: 26px;
    padding: 12px 34px;
    background-color: #046334;
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1.1em;
    transition: background 0.2s;
    cursor: pointer;
    border: none;
}

.btn-login:hover {
    background-color: #02824c;
}

.modal-header {
    background-color: #046334;
    color: #fff;
}

.modal-header .btn-close {
    filter: invert(1);
}

.modal-content {
    border-radius: 12px;
}

@media (max-width: 600px) {
    .top-nav {
        padding: 10px 15px;
        text-align: center;
    }

    .top-nav a {
        font-size: 0.9em;
        padding: 6px 12px;
    }

    .content {
        padding: 18px 6px;
    }

    .header {
        padding: 22px 5px 18px 5px;
    }

    .header h1 {
        font-size: 1.5em;
    }
}