body {
    font-family: 'Roboto', 'Arial', sans-serif; /* Modern font stack */
    background: linear-gradient(135deg, #456dda 0%, #3976d8 100%); /* Blue gradient */
    color: #f0f4f8; /* Light gray for readability */
    margin: 0;
    padding: 0;
    line-height: 1.7;
    overflow-x: hidden; /* Prevent horizontal overflow */
}

.navbar {
    background-color: #ffffff; /* Crisp white navbar */
    color: #1e3a8a; /* Dark blue text to match gradient */
    padding: 1.5rem 2rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background-color 0.3s ease;
}

.navbar-brand {
    color: #1e3a8a !important; /* Dark blue */
    font-weight: 700;
    font-size: 1.5rem;
}

.nav-link {
    color: #717fa7 !important; /* Light blue-gray */
    font-weight: 500;
    font-size: 1rem;
    padding: 0.5rem 1rem;
    margin-right: 25px;
    transition: color 0.3s ease, transform 0.2s ease;
}

.nav-link:hover {
    color: #6b2019 !important; /* Coral accent for hover */
    transform: scale(1.1);
}

.navbar-toggler {
    border: none;
    padding: 0.25rem 0.75rem;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba%2831, 58, 138, 0.9%29' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E"); /* Dark blue lines */
}

.navbar-collapse {
    background-color: #ffffff; /* White background for mobile menu */
}

@media (max-width: 991px) {
    .navbar-nav {
        padding: 1rem;
    }
    .nav-item {
        margin: 0.5rem 0;
    }
    .nav-link {
        font-size: 1.1rem;
        margin-right: 0;
        padding: 0.75rem;
    }
}

footer {
    background-color: #6190dd; /* Darker blue to match gradient */
    color: #f0f4f8;
    text-align: center;
    padding: 2rem;
    position: relative;
    bottom: 0;
    width: 100%;
}

section {
    padding: 60px 0;
    background: rgba(140, 162, 221, 0.9); /* Semi-transparent blue layer */
    border-radius: 15px;
    margin: 40px auto;
    max-width: 1200px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

h1, h2 {
    color: #8e1409; /* Coral for headings */
    font-weight: 700;
    margin-bottom: 30px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background-color: #ff6f61;
    border: none;
    padding: 12px 30px;
    font-weight: 600;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: #ff8a80;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(255, 111, 97, 0.3);
}

.btn-warning {
    background-color: #ffc107;
    border: none;
    padding: 12px 30px;
    font-weight: 600;
    border-radius: 25px;
    color: #212529;
    transition: all 0.3s ease;
}

.btn-warning:hover {
    background-color: #e0a800;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(255, 193, 7, 0.3);
}

.form-control {
    border-radius: 8px;
    border: 2px solid #5494ee; /* Blue tone */
    background-color: #91acf6;
    color: #f0f4f8;
    padding: 12px;
    font-size: 1.1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
    border-color: #983027;
    box-shadow: 0 0 10px rgba(255, 111, 97, 0.5);
    outline: none;
}

.alert {
    border-radius: 8px;
    padding: 15px;
    margin-top: 20px;
    font-size: 1.1rem;
    border: 2px solid transparent;
}

.alert-success {
    background-color: #2e7d32;
    color: #e8f5e9;
    border-color: #388e3c;
}

.alert-danger {
    background-color: #541e1e;
    color: #ffebee;
    border-color: #7c4343;
}

.job-listing {
    padding: 25px;
    margin-bottom: 30px;
    border-radius: 12px;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.job-listing:hover {
    transform: translateY(-5px);
}

.job-color-1 {
    background: #2a5caa; /* Blue */
}

.job-color-1:hover {
    background: #3a70cc;
}

.job-color-2 {
    background: #2e7d32; /* Green */
}

.job-color-2:hover {
    background: #388e3c;
}

.job-color-3 {
    background: #6b21a8; /* Purple */
}

.job-color-3:hover {
    background: #7c3ab8;
}

.job-color-4 {
    background: #00838f; /* Teal */
}

.job-color-4:hover {
    background: #0097a7;
}

@media (min-width: 768px) {
    .job-listing {
        min-height: 250px;
    }
    section {
        padding: 80px 0;
    }
    .container {
        max-width: 1100px;
    }
}

@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1.3rem;
    }
    h1 {
        font-size: 2rem;
    }
    p.lead {
        font-size: 1rem;
    }
    .job-listing {
        margin-bottom: 20px;
    }
}

@media (max-width: 576px) {
    .navbar-brand {
        font-size: 1.2rem;
    }
    h1 {
        font-size: 1.75rem;
    }
    p.lead {
        font-size: 0.9rem;
    }
    .form-control {
        font-size: 1rem;
        padding: 10px;
    }
}