body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background-color: #1e1e1e;
    color: #d4d4d4;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 900px;
    margin: 20px auto;
    padding: 20px;
    background-color: #252526;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.7);
}

/* Headings */
h1, h2 {
    color: #ffffff;
}

/* Textarea (code input) */
textarea {
    width: 100%;
    height: 200px;
    background-color: #1e1e1e;
    color: #d4d4d4;
    border: 1px solid #3c3c3c;
    padding: 10px;
    border-radius: 5px;
    font-family: monospace;
    resize: vertical;
}

/* Buttons */
.explain-btn, .mode-tabs button, .result button, .code-preview button {
    background-color: #0e639c;
    border: none;
    color: white;
    padding: 8px 16px;
    margin-top: 10px;
    cursor: pointer;
    border-radius: 4px;
    font-size: 14px;
}

.explain-btn:hover, .mode-tabs button:hover, .result button:hover, .code-preview button:hover {
    background-color: #1177bb;
}

/* Loader */
.loader {
    display: none;
    margin-top: 10px;
    color: #9cdcfe;
}

/* Mode tabs */
.mode-tabs {
    margin-bottom: 10px;
}

.mode-tabs button {
    margin-right: 5px;
}

.mode-tabs button.active {
    background-color: #007acc;
}

/* Results and code preview */
.result, .code-preview {
    margin-top: 20px;
}

pre {
    background-color: #1e1e1e;
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
}

pre code {
    display: block;
}