:root {
    --bg-color: #f8f9fa;
    --container-bg: white;
    --text-color: #212529;
    --primary-color: #3498db;
    --secondary-color: #2ecc71;
    --accent-color: #e74c3c;
    --border-color: #ced4da;
    --input-bg: white;
    --disabled-bg: #e9ecef;
}

.dark-mode {
    --bg-color: #121212;
    --container-bg: #1e1e1e;
    --text-color: #f8f9fa;
    --primary-color: #4dabf7;
    --secondary-color: #51cf66;
    --accent-color: #ff6b6b;
    --border-color: #495057;
    --input-bg: #2d2d2d;
    --disabled-bg: #343a40;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    transition: background-color 0.3s ease;
}

.container {
    background-color: var(--container-bg);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    width: 90%;
    max-width: 600px;
    transition: background-color 0.3s ease;
}

h1 {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 1.5rem;
}

/* Theme toggle switch styles */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    gap: 0.5rem;
    color: var(--text-color);
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

.slider.round {
    border-radius: 24px;
}

.slider.round:before {
    border-radius: 50%;
}

.text-input {
    margin-bottom: 1.5rem;
    display: flex;
    gap: 0.5rem;
}

input[type="text"] {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    background-color: var(--input-bg);
    color: var(--text-color);
}

.story-output {
    margin-bottom: 1.5rem;
}

textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    height: 200px;
    font-size: 16px;
    resize: none;
    line-height: 1.5;
    background-color: var(--input-bg);
    color: var(--text-color);
}

.text-option {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    margin-top: 0.5rem;
    gap: 1rem;
}

#toggleEditBtn {
    background-color: var(--disabled-bg);
    color: var(--text-color);
    padding: 0.5rem 0.75rem;
    font-size: 14px;
}

#toggleEditBtn:hover {
    filter: brightness(0.9);
}

#editModeStatus {
    font-size: 14px;
    color: var(--text-color);
}

textarea[readonly] {
    background-color: var(--disabled-bg);
}

.controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.voice-selection {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.voice-selection p {
    margin: 0;
    font-weight: bold;
    color: var(--text-color);
}

.voice-buttons {
    display: flex;
    gap: 0.5rem;
}

.voice-btn {
    flex: 1;
    background-color: var(--disabled-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
}

.voice-btn.selected {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.voice-btn:hover:not(.selected) {
    filter: brightness(0.9);
}

.audio-controls {
    display: flex;
    gap: 0.5rem;
}

.audio-controls button {
    flex: 1;
}

select, button {
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-size: 16px;
    border: 1px solid var(--border-color);
}

select {
    flex: 1;
    background-color: var(--input-bg);
}

button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s, filter 0.3s;
    flex: 0.5;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

#generateButton {
    background-color: var(--secondary-color);
}

#generateButton:hover {
    filter: brightness(0.9);
}

button:hover {
    filter: brightness(0.9);
}

#stopButton {
    background-color: var(--accent-color);
}

#stopButton:hover {
    filter: brightness(0.9);
}

#stopButton:disabled {
    background-color: var(--disabled-bg);
    cursor: not-allowed;
}

#pauseButton {
    background-color: var(--accent-color);
}

#pauseButton:hover {
    filter: brightness(0.9);
}

#pauseButton:disabled {
    background-color: var(--disabled-bg);
    cursor: not-allowed;
}

.speak-icon {
    width: 20px;
    height: 20px;
}

.status {
    text-align: center;
    color: var(--text-color);
    font-style: italic;
    min-height: 24px;
}

.status.success {
    color: var(--secondary-color);
}

.status.error {
    color: var(--accent-color);
}

.status.generating {
    color: #ff9800;
}