:root {
    /* Light theme (default) */
    --background-color: #f8f9fa;
    --container-background: #ffffff;
    --text-color: #333333;
    --border-color: #e0e0e0;
    --primary-color: #4285f4;
    --primary-hover: #3071a9;
    --correct-bg: #d4edda;
    --correct-color: #155724;
    --incorrect-bg: #f8d7da;
    --incorrect-color: #721c24;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --hover-color: #f0f0f0;
}

.edit-btn, .delete-btn {
    padding: 5px 10px;
    margin-left: 10px;
    font-size: 0.8rem;
    border-radius: 4px;
}

.edit-btn {
    background-color: var(--primary-color);
}

.delete-btn {
    background-color: #dc3545;
}

.question-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.question-text {
    flex-grow: 1;
}

.question-actions {
    display: flex;
    gap: 5px;
}

#update-question {
    background-color: #28a745;
}

#cancel-edit {
    background-color: #6c757d;
}


[data-theme="dark"] {
    /* Dark theme */
    --background-color: #121212;
    --container-background: #1e1e1e;
    --text-color: #f1f1f1;
    --border-color: #444444;
    --primary-color: #5c9aff;
    --primary-hover: #7cacff;
    --correct-bg: #1c4025;
    --correct-color: #a3e9a4;
    --incorrect-bg: #4a1e25;
    --incorrect-color: #f5c6cb;
    --shadow-color: rgba(0, 0, 0, 0.5);
    --hover-color: #2c2c2c;
}

* {
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    transition: all 0.3s ease;
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 600px;
    max-width: 95%;
    margin-bottom: 20px;
}

.title {
    font-size: 24px;
    font-weight: bold;
}

.theme-switch-container {
    display: flex;
    align-items: center;
}

.theme-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 28px;
    margin: 0 10px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    border-radius: 28px;
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    border-radius: 50%;
    transition: .4s;
}

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

input:checked + .slider:before {
    transform: translateX(32px);
}

.theme-icon {
    font-size: 18px;
}

.quiz-container {
    background-color: var(--container-background);
    border-radius: 10px;
    box-shadow: 0 0 10px 2px var(--shadow-color);
    width: 600px;
    max-width: 95%;
    overflow: hidden;
    padding: 30px;
}

.question {
    font-size: 1.5rem;
    margin-bottom: 20px;
    font-weight: bold;
}

.question-number {
    font-size: 0.9rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.answers {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

label {
    cursor: pointer;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
}

label:hover {
    background-color: var(--hover-color);
}

input[type="radio"] {
    margin-right: 10px;
}

.btn-container {
    display: flex;
    gap: 10px;
}

button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    padding: 12px 20px;
    font-size: 1rem;
    cursor: pointer;
    flex: 1;
    transition: background-color 0.3s;
}

button:hover {
    background-color: var(--primary-hover);
}

button:disabled {
    background-color: var(--border-color);
    cursor: not-allowed;
}

.hide {
    display: none;
}

.correct {
    background-color: var(--correct-bg);
    color: var(--correct-color);
    border-color: var(--correct-color);
}

.incorrect {
    background-color: var(--incorrect-bg);
    color: var(--incorrect-color);
    border-color: var(--incorrect-color);
}

#results {
    text-align: center;
}

#results h2 {
    margin-bottom: 20px;
    font-size: 24px;
}

#results p {
    margin-bottom: 15px;
    font-size: 18px;
}

.score-highlight {
    font-size: 24px;
    color: var(--primary-color);
    font-weight: bold;
    margin: 20px 0;
}

/* Quiz creator panel */
#creator-panel {
    display: none;
    background-color: var(--container-background);
    border-radius: 10px;
    box-shadow: 0 0 10px 2px var(--shadow-color);
    width: 600px;
    max-width: 95%;
    overflow: hidden;
    padding: 30px;
    margin-top: 20px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: var(--container-background);
    color: var(--text-color);
}

.answer-option {
    display: flex;
    margin-bottom: 10px;
    align-items: center;
}

.answer-option input[type="text"] {
    flex: 1;
    margin-right: 10px;
}

.nav-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

.tab-container {
    margin-bottom: 20px;
}

.tab-buttons {
    display: flex;
    border-bottom: 1px solid var(--border-color);
}

.tab-button {
    padding: 10px 20px;
    cursor: pointer;
    border: none;
    background: none;
    color: var(--text-color);
}

.tab-button.active {
    border-bottom: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.footer {
    margin-top: 20px;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-color);
    opacity: 0.8;
}