:root {
    --primary: #1d1616;
    --accent: #d84040;
    --success: #1e611e;
    --error: #430c0f;
    --warning: #7a5e0c;
    --text: #333333;
    --background: #ffffff;
    --grade-10-bg: #E6C7C6;
    --grade-10-text: #953F3E;
    --grade-11-bg: #BCE2AF;
    --grade-11-text: #3C543C;
    --grade-12-bg: #C9ACE7;
    --grade-12-text: #41255F;
    --border-radius: 15px;
    --delta-border-radius: 10px !important;
    --delta-modal-radius: 15px !important;
}

* {
    box-sizing: border-box;
    font-family: bodyfont;
}

/* Override Elementor styles for Delta Flashcard */
#delta-flashcard-app button,
#delta-knowledge-app button,
#delta-flashcard-app .delta-btn,
#delta-knowledge-app .delta-btn,
#delta-flashcard-app .delta-btn-secondary,
#delta-knowledge-app .delta-btn-secondary,
#delta-flashcard-app .delta-btn-primary,
#delta-knowledge-app .delta-btn-primary {
    border-radius: 10px !important;
}

#delta-flashcard-app .delta-modal-content,
#delta-knowledge-app .delta-modal-content {
    border-radius: 15px !important;
}

/* Fix all elements with border-radius variable */
#delta-flashcard-app [style*="border-radius"],
#delta-knowledge-app [style*="border-radius"] {
    border-radius: 10px !important;
}

/* Specific fixes for common elements */
#delta-flashcard-app .delta-card,
#delta-flashcard-app .delta-option,
#delta-flashcard-app .delta-input,
#delta-flashcard-app .delta-select,
#delta-flashcard-app .delta-textarea,
#delta-flashcard-app .delta-flashcard,
#delta-flashcard-app .delta-flashcard-front,
#delta-flashcard-app .delta-flashcard-back,
#delta-knowledge-app .delta-card,
#delta-knowledge-app .delta-option,
#delta-knowledge-app .delta-input,
#delta-knowledge-app .delta-select,
#delta-knowledge-app .delta-textarea,
#delta-knowledge-app .delta-knowledge-item {
    border-radius: 10px !important;
}

/* Force override Elementor's CSS variables */
#delta-flashcard-app,
#delta-knowledge-app,
#delta-flashcard-app *,
#delta-knowledge-app * {
    --border-radius: 10px !important;
}

/* Force white background for answer buttons */
#delta-flashcard-app .delta-answer-btn,
#delta-knowledge-app .delta-answer-btn {
    background-color: #ffffff !important;
    background: #ffffff !important;
}

/* Force specific styles for answer buttons with data-result attribute */
#delta-flashcard-app .delta-answer-btn[data-result],
#delta-knowledge-app .delta-answer-btn[data-result] {
    background-color: #ffffff !important;
    background: #ffffff !important;
}

/* Override any inline styles */
#delta-flashcard-app .delta-answer-btn[style*="background"],
#delta-knowledge-app .delta-answer-btn[style*="background"] {
    background-color: #ffffff !important;
    background: #ffffff !important;
}

/* Ensure show answer button is hidden when flipped */
#delta-card.flipped ~ #delta-show-answer,
.delta-flashcard-container.has-flipped #delta-show-answer,
#delta-show-answer.hidden {
    display: none !important;
}

/* Show answer actions when card is flipped */
#delta-card.flipped ~ #delta-answer-actions,
.delta-flashcard-container.has-flipped #delta-answer-actions {
    display: flex !important;
}

/* Additional specificity for hiding show answer button */
.delta-flashcard-container #delta-card.flipped ~ #delta-show-answer,
#delta-flashcard-app #delta-show-answer[style*="display: none"],
#delta-knowledge-app #delta-show-answer[style*="display: none"] {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
}

/* Equal width for stat boxes */
#delta-flashcard-app .delta-stats,
#delta-knowledge-app .delta-stats {
    display: flex !important;
    justify-content: space-between !important;
    align-items: stretch !important;
}

#delta-flashcard-app .delta-stat-box,
#delta-knowledge-app .delta-stat-box {
    flex: 1 1 0 !important;
    min-width: 0 !important;
    width: 100% !important;
}

/* Ultra-specific selectors to override any Elementor styles */
body .elementor #delta-flashcard-app button,
body .elementor #delta-knowledge-app button,
body .elementor-page #delta-flashcard-app button,
body .elementor-page #delta-knowledge-app button,
html body #delta-flashcard-app button,
html body #delta-knowledge-app button {
    border-radius: 10px !important;
}

body .elementor #delta-flashcard-app .delta-modal-content,
body .elementor #delta-knowledge-app .delta-modal-content,
body .elementor-page #delta-flashcard-app .delta-modal-content,
body .elementor-page #delta-knowledge-app .delta-modal-content,
html body #delta-flashcard-app .delta-modal-content,
html body #delta-knowledge-app .delta-modal-content {
    border-radius: 15px !important;
}

#delta-flashcard-app,
#delta-knowledge-app {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    font-size: 16px;
    color: var(--text);
    background: var(--background);
    direction: rtl;
}

h1, h2, h3, h4, h5, h6 {
    font-family: titrfont;
    margin: 0 0 20px 0;
}

h1 {
    font-weight: 800;
}

.delta-step {
    text-align: center;
    padding: 40px 20px;
}

.delta-step h2 {
    margin-bottom: 30px;
    color: var(--primary);
    font-size: 28px;
}

.delta-book-selection {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin: 30px 0;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.delta-book-selection label {
    background: var(--background);
    border: 1px solid #ddd;
    border-radius: 10px !important;
    padding: 15px 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
}

.delta-book-selection label:hover {
    border-color: #363636;
    background: #fafafa;
}

.delta-book-selection input[type="checkbox"] {
    transform: scale(1.5);
    accent-color: var(--primary);
}

.delta-btn {
    background: var(--primary) !important;
    color: white !important;
    border: none !important;
    border-radius: 10px !important;
    padding: 15px 30px !important;
    font-size: 18px !important;
    cursor: pointer !important;
    margin: 10px !important;
    transition: all 0.3s ease !important;
    font-family: bodyfont !important;
    box-sizing: border-box !important;
    display: inline-block !important;
    text-decoration: none !important;
    line-height: normal !important;
}

.delta-btn:hover {
    background: #363636 !important;
    transform: translateY(-2px) !important;
}

.delta-btn-secondary {
    background: #f0f0f0 !important;
    color: var(--text) !important;
    border: 1px solid #ddd !important;
    border-radius: 10px !important;
    padding: 15px 30px !important;
    font-size: 18px !important;
    cursor: pointer !important;
    margin: 10px !important;
    transition: all 0.3s ease !important;
    font-family: bodyfont !important;
    box-sizing: border-box !important;
    display: inline-block !important;
    text-decoration: none !important;
    line-height: normal !important;
}

.delta-btn-secondary:hover {
    background: #e0e0e0 !important;
    transform: translateY(-2px) !important;
}

#delta-chapter-selection {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin: 30px 0;
    min-height: 100px;
    position: relative;
}

.delta-chapters-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.delta-loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 40px;
}

.delta-loading-container p {
    font-size: 18px;
    color: var(--primary);
    margin: 0;
}

.delta-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: delta-spin 1s linear infinite;
}

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

.delta-loader-text {
    color: var(--primary);
    font-family: titrfont;
    font-size: 16px;
}

.delta-count-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    padding: 40px 20px;
    text-align: center;
}

.delta-count-loader .delta-loader-text {
    color: var(--primary);
    font-family: titrfont;
    font-size: 16px;
}

.delta-chapter-item {
    background: var(--background);
    border: 1px solid #ddd;
    border-radius: 10px !important;
    padding: 10px 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.delta-chapter-item:hover,
.delta-chapter-item.selected {
    border-color: #363636;
    background: #fef5f5;
}

.delta-chapter-item input[type="checkbox"] {
    accent-color: var(--primary);
    cursor: pointer;
}

.delta-chapter-item label {
    cursor: pointer;
    flex: 1;
    margin: 0;
}

#delta-count-selection {
    margin: 30px 0;
}

.delta-count-box {
    background: var(--background);
    border-radius: 10px !important;
    padding: 20px;
    margin: 15px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    direction: rtl;
}

.delta-count-box.grade-10 {
    background: var(--grade-10-bg);
    color: var(--grade-10-text);
    border: none;
}

.delta-count-box.grade-11 {
    background: var(--grade-11-bg);
    color: var(--grade-11-text);
    border: none;
}

.delta-count-box.grade-12 {
    background: var(--grade-12-bg);
    color: var(--grade-12-text);
    border: none;
}

.delta-count-box h4 {
    margin: 0;
    font-size: 16px;
    text-align: right;
    flex: 1;
}

.delta-count-box .delta-input-container {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.delta-count-box input[type="number"] {
    width: 80px;
    padding: 8px;
    border: none;
    outline: none;
    border-radius: 8px;
    font-size: 16px;
    text-align: center;
    background: var(--background);
    transition: all 0.3s ease;
}

.delta-count-box input[type="number"].invalid {
    border: none;
    outline: none;
    background: #ffeaea;
}

.delta-count-box input[type="number"]:focus {
    outline: none;
    border: none;
    box-shadow: 0 0 0 2px rgba(216, 64, 64, 0.3);
}

.delta-count-box input[type="number"]:hover {
    outline: none;
    border: none;
}

.delta-error {
    color: var(--error);
    font-size: 14px;
    margin-top: 5px;
}

.delta-step-error {
    background: #ffeaea;
    border: none;
    border-radius: 10px !important;
    color: var(--error);
    padding: 15px;
    margin: 15px 0;
    text-align: center;
    display: none;
}

.delta-progress {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 30px;
    color: var(--primary);
}

.delta-card-container {
    perspective: 1000px;
    margin: 40px 0;
}

.delta-card {
    width: 100%;
    max-width: 600px;
    height: 300px;
    margin: 0 auto;
    position: relative;
    cursor: pointer;
}

.delta-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.delta-card.flipped .delta-card-inner {
    transform: rotateY(180deg);
}

.delta-card-front,
.delta-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    background: var(--background);
    border: 1px solid #ddd;
    border-radius: 10px !important;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px;
}

.delta-card-back {
    transform: rotateY(180deg);
    background: #f8f8f8;
    border: none;
}

.delta-card-front p {
    font-size: 18px;
    line-height: 1.6;
    margin: 0;
    font-family: titrfont;
}

.delta-card-back p {
    font-size: 18px;
    line-height: 1.6;
    margin: 0;
    font-family: bodyfont;
}

.delta-game-actions {
    text-align: center;
    margin-top: 30px;
}

#delta-answer-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

.delta-answer-btn {
    background: #ffffff !important;
    color: var(--text) !important;
    border: 1px solid #ddd !important;
    border-radius: 10px !important;
    padding: 12px 8px !important;
    cursor: pointer !important;
    font-size: 14px !important;
    transition: all 0.3s ease !important;
    flex: 1 !important;
    white-space: nowrap !important;
    min-width: 0 !important;
}

/* Ensure white background for all states */
.delta-answer-btn,
.delta-answer-btn:not([data-result]),
.delta-answer-btn[data-result=""],
.delta-answer-btn[data-result="correct"],
.delta-answer-btn[data-result="wrong"],
.delta-answer-btn[data-result="skip"] {
    background-color: #ffffff !important;
    background: #ffffff !important;
}

.delta-answer-btn[data-result="correct"] {
    border-color: var(--success) !important;
    color: var(--success) !important;
}

.delta-answer-btn[data-result="correct"]:hover {
    background: var(--success) !important;
    color: white !important;
}

.delta-answer-btn[data-result="wrong"] {
    border-color: var(--error) !important;
    color: var(--error) !important;
}

.delta-answer-btn[data-result="wrong"]:hover {
    background: var(--error) !important;
    color: white !important;
}

.delta-answer-btn[data-result="skip"] {
    border-color: var(--warning) !important;
    color: var(--warning) !important;
}

.delta-answer-btn[data-result="skip"]:hover {
    background: var(--warning) !important;
    color: white !important;
}

.delta-stats {
    display: flex !important;
    justify-content: space-between !important;
    margin: 30px 0 !important;
    flex-wrap: nowrap !important;
    gap: 15px !important;
}

.delta-stat-box {
    background: var(--background) !important;
    border: 1px solid #ddd !important;
    border-radius: 10px !important;
    padding: 20px !important;
    flex: 1 !important;
    min-width: 0 !important;
    text-align: center !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
}

.delta-stat-box.correct {
    background: #e8f5e8;
    color: var(--success);
    border: none;
}

.delta-stat-box.wrong {
    background: #ffeaea;
    color: var(--error);
    border: none;
}

.delta-stat-box.skip {
    background: #fff8e7;
    color: var(--warning);
    border: none;
}

.delta-percentage {
    text-align: center;
    margin: 40px 0;
}

.delta-chart {
    position: relative;
    display: inline-block;
    margin: 20px 0;
}

.delta-chart svg {
    width: 200px;
    height: 120px;
    transform: rotate(0deg);
}

.delta-chart-bg {
    fill: none;
    stroke: #f0f0f0;
    stroke-width: 25;
    stroke-linecap: round;
}

.delta-chart-fill {
    fill: none;
    stroke: var(--success);
    stroke-width: 25;
    stroke-linecap: round;
    stroke-dasharray: 0 100;
    transition: stroke-dasharray 1s ease-out, stroke 0.3s ease;
    transform-origin: 100px 60px;
}

.delta-percentage-text {
    position: absolute;
    top: 70%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 25px;
    font-weight: bold;
    color: var(--success);
    font-family: titrfont;
    padding-top: 10px;
}

.delta-wrong-questions {
    text-align: right;
    margin: 40px 0;
}

.delta-wrong-questions h3 {
    margin-bottom: 20px;
    color: var(--primary);
}

.delta-wrong-question-item {
    background: var(--background);
    border: 1px solid #ddd;
    border-radius: 10px !important;
    padding: 20px;
    margin: 15px 0;
}

.delta-wrong-question-item h4 {
    margin: 0 0 15px 0;
    color: var(--text);
    font-size: 16px;
    line-height: 1.5;
}

.delta-question-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.delta-meta-tag {
    background: var(--background);
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 5px 10px;
    font-size: 12px;
    color: var(--text);
}

.delta-meta-tag.book {
    background: var(--grade-10-bg);
    color: var(--grade-10-text);
    border-color: var(--grade-10-text);
}

#delta-connection-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.delta-overlay-content {
    background: var(--background);
    border: none;
    border-radius: 10px !important;
    padding: 40px;
    text-align: center;
    max-width: 400px;
}

.delta-overlay-content h3 {
    color: var(--error);
    margin-bottom: 15px;
}

.delta-knowledge-header {
    display: flex !important;
    gap: 15px !important;
    margin-bottom: 30px !important;
    align-items: center !important;
    flex-wrap: nowrap !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 0 !important;
}

.delta-search-container {
    flex: 4 !important;
    position: relative !important;
    min-width: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    box-sizing: border-box !important;
    display: block !important;
    width: auto !important;
    height: auto !important;
}

.delta-search-container input {
    width: 100% !important;
    padding: 15px 50px 15px 20px !important;
    border: 1px solid #ddd !important;
    border-radius: 15px !important;
    font-size: 16px !important;
    background: var(--background) !important;
    height: 45px !important;
    box-sizing: border-box !important;
    font-family: bodyfont !important;
    color: var(--text) !important;
    outline: none !important;
    transition: border-color 0.3s ease !important;
    text-align: right !important;
    direction: rtl !important;
    margin: 0 !important;
    vertical-align: top !important;
    box-shadow: none !important;
    appearance: none !important;
    -webkit-appearance: none !important;
    -moz-appearance: none !important;
    line-height: 1.4 !important;
    min-height: auto !important;
    max-height: none !important;
    text-transform: none !important;
    letter-spacing: normal !important;
    word-spacing: normal !important;
}

.delta-search-container input:focus {
    border-color: var(--primary) !important;
    box-shadow: none !important;
}

.delta-search-container input:hover {
    border-color: #999 !important;
}

.delta-search-container input::placeholder {
    color: #999 !important;
    font-family: bodyfont !important;
    opacity: 1 !important;
}

.delta-search-container button {
    position: absolute !important;
    left: 15px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    border: none !important;
    background: none !important;
    font-size: 20px !important;
    cursor: pointer !important;
    color: var(--text) !important;
    padding: 0 !important;
    margin: 0 !important;
    outline: none !important;
    box-shadow: none !important;
    text-decoration: none !important;
    font-family: inherit !important;
    line-height: 1 !important;
    width: auto !important;
    height: auto !important;
    min-width: auto !important;
    min-height: auto !important;
    border-radius: 0 !important;
    transition: color 0.3s ease !important;
}

.delta-filter-container {
    flex: 1 !important;
    display: flex !important;
    gap: 10px !important;
    min-width: 120px !important;
    margin: 0 !important;
    padding: 0 !important;
    box-sizing: border-box !important;
    align-items: center !important;
    flex-wrap: nowrap !important;
    width: auto !important;
    height: auto !important;
}

.delta-filter-container button {
    padding: 15px 20px !important;
    border: 1px solid #ddd !important;
    border-radius: var(--border-radius) !important;
    background: var(--background) !important;
    cursor: pointer !important;
    font-size: 16px !important;
    color: var(--text) !important;
    width: 100% !important;
    height: 45px !important;
    box-sizing: border-box !important;
    font-family: bodyfont !important;
    text-align: center !important;
    outline: none !important;
    margin: 0 !important;
    transition: all 0.3s ease !important;
    text-decoration: none !important;
    vertical-align: top !important;
    box-shadow: none !important;
    appearance: none !important;
    -webkit-appearance: none !important;
    -moz-appearance: none !important;
    line-height: 1.4 !important;
    text-transform: none !important;
    letter-spacing: normal !important;
    word-spacing: normal !important;
}

.delta-filter-container button:hover {
    background: #f0f0f0 !important;
    border-color: #999 !important;
}

.delta-search-container button:hover {
    color: var(--primary) !important;
}

#delta-search-clear {
    position: absolute !important;
    right: 15px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    background: none !important;
    border: none !important;
    color: #999 !important;
    cursor: pointer !important;
    font-size: 16px !important;
    padding: 2px 4px !important;
    border-radius: 3px !important;
    transition: all 0.3s ease !important;
    display: none !important;
    z-index: 10 !important;
}

#delta-search-clear:hover {
    background: #f0f0f0 !important;
    color: var(--primary) !important;
}

#delta-filter-clear {
    background: var(--accent) !important;
    color: white !important;
    border: none !important;
    border-radius: var(--border-radius) !important;
    padding: 8px 12px !important;
    cursor: pointer !important;
    font-size: 14px !important;
    font-family: bodyfont !important;
    transition: all 0.3s ease !important;
    display: none !important;
    margin-right: 10px !important;
}

#delta-filter-clear:hover {
    background: #ad3434 !important;
}

#delta-filter-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.delta-filter-content {
    background: var(--background) !important;
    border: none !important;
    border-radius: var(--border-radius) !important;
    padding: 30px !important;
    max-width: 400px !important;
    width: 90% !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3) !important;
    font-family: bodyfont !important;
    color: var(--text) !important;
    direction: rtl !important;
    text-align: right !important;
}

.delta-filter-content h3 {
    margin-bottom: 20px !important;
    color: var(--primary) !important;
    font-family: titrfont !important;
    font-size: 18px !important;
    text-align: center !important;
    border-bottom: 2px solid #eee !important;
    padding-bottom: 10px !important;
}

.delta-filter-content label {
    display: block !important;
    margin: 10px 0 !important;
    cursor: pointer !important;
    padding: 10px !important;
    border-radius: 8px !important;
    transition: background 0.3s ease !important;
    font-family: bodyfont !important;
    color: var(--text) !important;
    font-size: 16px !important;
    user-select: none !important;
    -webkit-user-select: none !important;
    -moz-user-select: none !important;
    -ms-user-select: none !important;
}

.delta-filter-content label:hover {
    background: #f0f0f0 !important;
    color: var(--primary) !important;
}

.delta-filter-content input[type="checkbox"] {
    margin-left: 10px !important;
    accent-color: var(--primary) !important;
    transform: scale(1.2) !important;
    cursor: pointer !important;
}

.delta-filter-actions {
    display: flex !important;
    gap: 10px !important;
    margin-top: 20px !important;
    justify-content: center !important;
    align-items: center !important;
}

.delta-filter-actions button {
    flex: 1 !important;
    padding: 12px 15px !important;
    border-radius: var(--border-radius) !important;
    font-size: 16px !important;
    cursor: pointer !important;
    border: 1px solid #ddd !important;
    min-width: 0 !important;
    font-family: bodyfont !important;
    transition: all 0.3s ease !important;
    background: var(--background) !important;
    color: var(--text) !important;
    box-shadow: none !important;
    outline: none !important;
    text-decoration: none !important;
    text-align: center !important;
    vertical-align: middle !important;
    line-height: 1.4 !important;
    max-width: none !important;
}

#delta-apply-filter {
    background: var(--primary) !important;
    color: white !important;
    border-color: var(--primary) !important;
}

#delta-apply-filter:hover {
    background: #b83636 !important;
    border-color: #b83636 !important;
}

#delta-close-filter:hover {
    background: #f0f0f0 !important;
    border-color: #999 !important;
}

.delta-knowledge-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    padding: 40px 20px;
    text-align: center;
}

.delta-knowledge-loader .delta-loader-text {
    color: var(--primary);
    font-family: titrfont;
    font-size: 16px;
}

#delta-questions-list {
    margin: 30px 0;
}

.delta-question-item {
    background: var(--background);
    border: 1px solid #ddd;
    border-radius: 10px !important;
    padding: 20px;
    margin: 20px 0;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    text-decoration: none;
    color: inherit;
}

.delta-question-item:hover {
    border-color: var(--primary);
    background: #fafafa;
    text-decoration: none;
    color: inherit;
}

.delta-question-item:visited {
    color: inherit;
}

.delta-question-item:focus {
    outline: 2px solid #363636;
    outline-offset: 2px;
}

.delta-question-text {
    font-size: 16px;
    line-height: 1.4;
    margin: 0;
    padding-left: 30px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.delta-question-arrow {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    background-image: url('img/left.svg');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    opacity: 0.6;
    transition: opacity 0.3s ease;
    flex-shrink: 0;
}

.delta-question-item:hover .delta-question-arrow {
    opacity: 1;
}

#delta-load-more {
    display: block;
    margin: 30px auto;
    background: var(--accent);
}

#delta-load-more:hover {
    background: #ad3434;
}

#delta-load-more:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

#delta-load-more:disabled:hover {
    background: #ccc;
    transform: none;
}

.delta-single-question {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
    direction: rtl;
}

.delta-single-question h1 {
    color: var(--primary);
    font-size: 24px;
    line-height: 1.6;
    margin-bottom: 30px;
    font-family: titrfont;
    font-weight: 800;
}

.delta-single-question .delta-answer {
    background: var(--background);
    border: none;
    border-radius: 10px !important;
    padding: 30px;
    margin: 30px 0;
    font-size: 16px;
    line-height: 1.8;
}

.delta-navigation {
    display: flex;
    justify-content: space-between;
    margin: 40px 0 20px;
}

.delta-nav-btn {
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 10px !important;
    padding: 12px 20px;
    cursor: pointer;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
}

.delta-nav-btn:hover {
    background: #ad3434;
    transform: translateY(-2px);
    color: white;
}

.delta-nav-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

/* رنگ‌بندی سوالات اشتباه بر اساس پایه */
.delta-wrong-question-item.grade-10 {
    background: var(--grade-10-bg);
    color: var(--grade-10-text);
    border: none;
}

.delta-wrong-question-item.grade-11 {
    background: var(--grade-11-bg);
    color: var(--grade-11-text);
    border: none;
}

.delta-wrong-question-item.grade-12 {
    background: var(--grade-12-bg);
    color: var(--grade-12-text);
    border: none;
}

.delta-meta-tag.book.grade-10 {
    background: var(--grade-10-text);
    color: var(--grade-10-bg);
    border: none;
}

.delta-meta-tag.book.grade-11 {
    background: var(--grade-11-text);
    color: var(--grade-11-bg);
    border: none;
}

.delta-meta-tag.book.grade-12 {
    background: var(--grade-12-text);
    color: var(--grade-12-bg);
    border: none;
}

@media (max-width: 768px) {
    #delta-flashcard-app,
    #delta-knowledge-app {
        padding: 15px;
    }
    
    .delta-knowledge-header {
        flex-direction: row !important;
        gap: 10px !important;
        align-items: center !important;
        margin-bottom: 20px !important;
    }
    
    .delta-search-container {
        flex: 3 !important;
        min-width: 0 !important;
    }
    
    .delta-filter-container {
        flex: 1 !important;
        min-width: 100px !important;
        gap: 5px !important;
    }
    
    .delta-search-container input {
        font-size: 14px !important;
        padding: 12px 15px !important;
        height: 45px !important;
    }
    
    .delta-filter-container button {
        font-size: 14px !important;
        padding: 12px 15px !important;
        height: 45px !important;
    }
    
    #delta-search-clear {
        right: 10px !important;
        font-size: 14px !important;
    }
    
     #delta-filter-clear {
         font-size: 12px !important;
         padding: 6px 10px !important;
         margin-right: 5px !important;
     }
     
     .delta-filter-content {
         padding: 20px !important;
         max-width: 350px !important;
     }
     
     .delta-filter-content h3 {
         font-size: 16px !important;
         margin-bottom: 15px !important;
     }
     
     .delta-filter-content label {
         font-size: 14px !important;
         padding: 8px !important;
         margin: 8px 0 !important;
     }
     
     .delta-filter-actions button {
         font-size: 14px !important;
         padding: 10px 12px !important;
     }
    
    .delta-stats {
        flex-direction: column;
        align-items: center;
    }
    
    .delta-question-meta {
        justify-content: center;
    }
    
    .delta-question-text {
        font-size: 14px;
        padding-left: 25px;
    }
    
    .delta-question-arrow {
        left: 10px;
        width: 14px;
        height: 14px;
    }
    
    .delta-card {
        height: 250px;
    }
    
    .delta-card-front p,
    .delta-card-back p {
        font-size: 16px;
    }
    
    .delta-navigation {
        flex-direction: column;
        gap: 10px;
    }
    
    #delta-answer-actions {
        flex-direction: column;
        gap: 10px;
        max-width: 300px;
    }
    
    .delta-answer-btn {
        font-size: 16px;
        padding: 15px;
    }
}

/* Modal Styles */
.delta-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    direction: rtl;
}

.delta-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(2px);
}

.delta-modal-content {
    position: absolute !important;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
    background: var(--background) !important;
    border-radius: 15px !important;
    width: 90% !important;
    max-width: 700px !important;
    max-height: 90vh !important;
    overflow: hidden !important;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3) !important;
}

.delta-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid #eee;
    background: #fafafa;
}

.delta-modal-header h3 {
    margin: 0;
    color: var(--primary);
    font-family: titrfont;
    font-size: 20px;
}

.delta-modal-close {
    background: none;
    border: none;
    font-size: 28px;
    color: #999;
    cursor: pointer;
    padding: 0;
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.delta-modal-close:hover {
    background: #f0f0f0;
    color: var(--primary);
}

.delta-modal-body {
    padding: 25px;
    max-height: calc(90vh - 80px);
    overflow-y: auto;
}

.delta-modal-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    padding: 40px 20px;
    text-align: center;
}

.delta-modal-question-content {
    direction: rtl;
}

.delta-question-section,
.delta-answer-section,
.delta-source-section {
    margin-bottom: 25px;
}

.delta-question-section h4,
.delta-answer-section h4,
.delta-source-section h4 {
    color: var(--primary);
    font-family: titrfont;
    font-size: 16px;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid #eee;
}

.delta-question-text-full {
    font-family: titrfont;
    font-size: 18px;
    line-height: 1.7;
    color: var(--text);
    background: none;
    padding: 15px 0;
    border: none;
    border-radius: 0;
}

.delta-answer-text-full {
    font-family: bodyfont;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text);
    background: none;
    padding: 15px 0;
    border: none;
    border-radius: 0;
}

.delta-source-info {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.delta-source-item {
    background: var(--background);
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 14px;
    color: var(--text);
    font-family: bodyfont;
}

.delta-source-item.book-item.grade-10 {
    background: var(--grade-10-bg);
    color: var(--grade-10-text);
    border: none;
}

.delta-source-item.book-item.grade-11 {
    background: var(--grade-11-bg);
    color: var(--grade-11-text);
    border: none;
}

.delta-source-item.book-item.grade-12 {
    background: var(--grade-12-bg);
    color: var(--grade-12-text);
    border: none;
}

.delta-modal-error {
    text-align: center;
    color: var(--error);
    font-family: titrfont;
    font-size: 16px;
    padding: 30px;
    background: #ffeaea;
    border-radius: 10px;
}

/* Prevent body scroll when modal is open */
body.delta-modal-open {
    overflow: hidden;
}

/* Mobile Modal Styles */
@media (max-width: 768px) {
    .delta-modal-content {
        width: 95%;
        max-height: 95vh;
    }
    
    .delta-modal-header {
        padding: 15px 20px;
    }
    
    .delta-modal-header h3 {
        font-size: 18px;
    }
    
    .delta-modal-body {
        padding: 20px;
    }
    
    .delta-question-text-full,
    .delta-answer-text-full {
        padding: 15px;
        font-size: 16px;
    }
    
    .delta-source-info {
        flex-direction: row;
    }
    
    .delta-source-item {
        text-align: center;
    }
} 

/* Final overrides to ensure white background on answer buttons */
#delta-flashcard-app .delta-answer-btn,
#delta-knowledge-app .delta-answer-btn,
.delta-answer-btn,
button.delta-answer-btn,
.delta-answer-actions .delta-answer-btn,
#delta-answer-actions .delta-answer-btn,
.delta-answer-btn[style*="background"] {
    background-color: #ffffff !important;
    background: #ffffff !important;
}

/* Ensure proper display of answer actions */
#delta-show-answer {
    transition: opacity 0.3s ease;
}

#delta-answer-actions {
    transition: opacity 0.3s ease;
}

/* Hide show answer button when answer is shown */
.delta-flashcard-container.answer-shown #delta-show-answer,
#delta-card.flipped ~ #delta-show-answer {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
}

/* Show answer actions when answer is shown */
.delta-flashcard-container.answer-shown #delta-answer-actions,
#delta-card.flipped ~ #delta-answer-actions {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
}