.dlt-container {
    background: none;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.dlt-window {
    width: 90vw;
    max-width: 900px;
    background: #FFFFFF;
    border-radius: 20px;
    margin: 0 auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.dlt-header {
    background: #282828;
    color: #FFFFFF;
    padding: 15px;
    text-align: center;
    border-radius: 20px 20px 0 0;
    position: relative;
}

.dlt-header h1 {
    margin: 0;
    font-size: 24px;
    color: #FFFFFF;
}

.dlt-traffic-lights {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    gap: 8px;
}

.dlt-circle {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.red { background: #ff5f57; }
.yellow { background: #ffbc2f; }
.green { background: #28c941; }

.dlt-content {
    padding: 20px;
    background: #FFFFFF;
    border-radius: 0 0 20px 20px;
}

.subtitle {
    color: #6c757d;
    font-size: 1.1rem;
    text-align: center;
    margin-bottom: 20px;
}

.lookup-form {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 10px;
    margin-bottom: 30px;
}

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

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #282828;
}

.input-group {
    display: flex;
    align-items: center;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.input-group input[type="text"],
.input-group select,
.input-group button {
    border: none;
    height: 45px;
    margin: 0;
}

.input-group input[type="text"] {
    flex: 1;
    padding: 12px 15px;
    border-radius: 15px 0 0 15px;
    font-size: 1rem;
    background: #fff;
    color: #282828;
    border: 1px solid #ddd;
    border-right: none;
}

.input-group input[type="text"]:focus {
    outline: none;
    border-color: #FF0000;
}

.input-group select {
    padding: 12px 15px;
    background-color: white;
    font-size: 1rem;
    cursor: pointer;
    border: 1px solid #ddd;
    border-left: none;
    border-right: none;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20width%3D%2220%22%20height%3D%2220%22%20viewBox%3D%220%200%2020%2020%22%20fill%3D%22none%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%3Cpath%20d%3D%22M6%208L10%2012L14%208H6Z%22%20fill%3D%22%23666%22%2F%3E%3C%2Fsvg%3E');
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 30px;
}

.input-group select:focus {
    outline: none;
    border-color: #FF0000;
}

button {
    background-color: #FF0000;
    color: white;
    border: none;
    padding: 12px 20px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

button:hover {
    background-color: #CC0000;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.lookup-btn {
    border-radius: 0 15px 15px 0;
}

.clear-btn, .export-btn, .re-lookup-btn {
    border-radius: 15px;
    background-color: #6c757d;
}

.clear-btn:hover, .export-btn:hover, .re-lookup-btn:hover {
    background-color: #5a6268;
    transform: translateY(-2px);
}

.button-group {
    display: flex;
    align-items: center;
    justify-content: center;
}

.results {
    background-color: #f9f9f9;
    border-radius: 10px;
    padding: 30px;
    margin-bottom: 30px;
}

.results h2 {
    color: #282828;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.results-actions {
    margin-top: 20px;
    text-align: center;
}

.result-item {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}

.result-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.result-type {
    font-weight: 600;
    color: #282828;
    margin-bottom: 5px;
}

.result-value {
    font-family: monospace;
    background-color: #f8f9fa;
    padding: 8px 12px;
    border-radius: 4px;
    word-break: break-all;
}

.result-ttl {
    font-size: 0.9rem;
    color: #666;
}

.recent-lookups {
    background-color: #f9f9f9;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 30px;
}

.recent-lookups h2 {
    color: #282828;
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.recent-lookups ul {
    list-style: none;
    padding: 0;
}

.recent-lookups li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}

.recent-lookups li:last-child {
    border-bottom: none;
}

.recent-lookups .lookup-domain {
    font-weight: 600;
    color: #282828;
}

.recent-lookups .lookup-type {
    color: #666;
}

.recent-lookups .re-lookup-btn {
    padding: 5px 10px;
    font-size: 0.9rem;
}

.loading {
    display: none;
    text-align: center;
    padding: 20px;
}

.spinner {
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top: 4px solid #FF0000;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error-message {
    color: #721c24;
    background-color: #f8d7da;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    display: none;
}

.success-message {
    color: #155724;
    background-color: #d4edda;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    display: none;
}

footer {
    text-align: center;
    color: #6c757d;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

@media (max-width: 768px) {
    .dlt-window {
        width: 100%;
        max-width: 100%;
    }

    .input-group {
        flex-direction: column;
        align-items: stretch;
    }

    .input-group input[type="text"],
    .input-group select,
    .input-group button {
        border-radius: 15px;
        border: 1px solid #ddd;
        width: 100%;
    }

    .input-group input[type="text"] {
        border-radius: 15px 15px 0 0;
        border-bottom: none;
    }

    .input-group select {
        border-radius: 0;
        border-top: none;
        border-bottom: none;
    }

    .lookup-btn {
        border-radius: 0 0 15px 15px;
        border-top: none;
    }

    .button-group {
        flex-direction: column;
    }

    .clear-btn, .export-btn {
        margin-left: 0;
        margin-top: 10px;
        width: 100%;
    }

    .recent-lookups li {
        flex-direction: column;
        align-items: flex-start;
    }
}