body {
    background: linear-gradient(135deg, #1c1c1c 0%, #000000 100%);
    color: #e0e0e0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

    min-height: 100vh;
}

.navbar {
    background-color: #111 !important;
    border-bottom: 2px solid #070088;
}

.navbar-brand {
    color: #070088 !important;
    font-weight: bold;
    letter-spacing: 1px;
}

.card {
    background-color: #212529;
    border: 1px solid #444;
    border-radius: 8px;
    color: #f8f9fa;
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid #0900ba;
    color: #0901ac;
    font-weight: 500;
}

.form-control {
    background-color: #343a40;
    color: #f8f9fa;
    border: 1px solid #555;
    border-radius: 5px;
}

.form-control::placeholder {
    color: #888;
}

.form-control:focus {
    background-color: #3a4147;
    color: #fff;
    border-color: #070088;
    box-shadow: 0 0 8px rgba(255, 165, 0, 0.4);
}

.btn-primary {
    background: linear-gradient(45deg, #000ac8, #06007d);
    border: none;
    font-weight: bold;
    padding: 10px;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(12, 0, 94, 0.5);
    background: linear-gradient(45deg, #070088, #0003c5); 
}

#results-container .card-title {
    color: #0900ba;
}

#suggested-reply.alert {
    background-color: #2c2c2e;
    border-left: 4px solid #2f00ff;
    color: #e0e0e0;
}

#email-category.badge {
    background-color: #0015b4;
    color: #111;
    font-size: 0.9em;
    font-weight: bold;
}

.spinner-border {
    color: #070088; 
}

footer {
    text-align: center;
    padding: 20px;
    margin-top: 50px;
    background-color: #222;
    color: #bbb;
    font-size: 0.9em;
    border-top: 1px solid #333; 
}

footer a {
    color: #007bff;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}