body {
    font-family: Arial, sans-serif;
    background-color: #f8f9fa;
}

.container {
    max-width: 700px;
    margin: 20px auto;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
}

h2 {
    text-align: center;
    color: #007bff;
}

#onlineUsers {
    padding: 10px;
    background: #e9f5ff;
    border-radius: 5px;
    margin-bottom: 10px;
}

#chatbox {
    width: 100%;
    height: 400px;
    border: 1px solid #ddd;
    overflow-y: auto;
    padding: 10px;
    background: #fff;
    margin-bottom: 10px;
    border-radius: 5px;
}

.message {
    padding: 5px;
    border-bottom: 1px solid #eee;
    display: flex;
    flex-direction: column;
}

.original {
    font-weight: bold;
}

.translated {
    color: blue;
    font-style: italic;
}

.timestamp {
    color: gray;
    font-size: 12px;
    margin-top: 5px;
}

.speaker {
    cursor: pointer;
    font-size: 20px;
    color: #007BFF;
    margin-left: 10px;
}

.input-area {
    display: flex;
    gap: 10px;
    margin-top: 10px;
    flex-wrap: wrap;
}

input, select {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

button {
    padding: 10px 20px;
    border: none;
    background: #007bff;
    color: white;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background: #0056b3;
}

#audioToggleContainer {
    display: flex;
    align-items: center;
    margin-top: 10px;
}

#autoPlayAudio {
    margin-right: 5px;
}

.learn-container {
    max-width: 780px;
}

.learn-header {
    text-align: center;
    margin-bottom: 1rem;
}

.learn-header h2 {
    margin-bottom: 0.35rem;
}

.learn-subtitle {
    color: #6c757d;
    font-size: 0.95rem;
    margin: 0;
}

.prefs-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.prefs-bar label {
    font-weight: 600;
    white-space: nowrap;
}

.prefs-bar input {
    flex: 1;
    min-width: 120px;
}

.message-row input {
    flex: 3;
}

.additional-translated {
    color: #6f42c1;
    font-style: italic;
    margin-top: 4px;
}

.system-message {
    text-align: center;
    color: #6c757d;
    font-style: italic;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 6px;
    margin-bottom: 8px;
}

.error-text {
    color: #dc3545;
}

#audioOptions {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px 20px;
}

#audioOptions label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.learn-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    flex-wrap: wrap;
    gap: 10px;
}

.btn-secondary {
    background: #6c757d;
    color: white;
    padding: 8px 16px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.btn-secondary:hover {
    background: #5a6268;
}

.save-hint {
    color: #28a745;
    font-size: 0.85rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.save-hint.visible {
    opacity: 1;
}