/* Flashcard Styles for PT Resource */

/* Tab Navigation */
.flashcard-tabs {
    display: flex;
    margin-bottom: 25px;
    border-bottom: 1px solid #333;
}

.tab-button {
    background-color: transparent;
    color: var(--text-secondary);
    border: none;
    padding: 15px 25px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s;
    font-weight: 500;
    position: relative;
}

.tab-button:hover {
    color: var(--text-primary);
}

.tab-button.active {
    color: var(--primary-color);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 3px;
    background-color: var(--primary-color);
}

.tab-content {
    display: block;
}

.tab-content.hidden {
    display: none;
}

/* Flashcard Form */
.flashcard-form {
    max-width: 800px;
    margin: 0 auto 30px;
    padding: 30px;
}

.flashcard-form h2 {
    margin-bottom: 20px;
    color: var(--primary-color);
    display: flex;
    align-items: center;
}

/* Removed icon spacing */

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-weight: 500;
}

.form-group select,
.form-group textarea,
.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #333;
    border-radius: 6px;
    background-color: var(--background-dark);
    color: var(--text-primary);
    font-size: 16px;
}

.form-group textarea {
    resize: vertical;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: background-color 0.3s;
}

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

.btn-secondary {
    background-color: var(--background-light);
    color: var(--text-primary);
    border: 1px solid #444;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background-color: var(--background-darker);
}

.btn-danger {
    background-color: #ef4444;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s;
}

.btn-danger:hover {
    background-color: #b91c1c;
}

/* Quick Add Section */
.quick-add-section {
    margin-top: 40px;
}

.quick-add-section h3 {
    color: var(--text-primary);
    margin-bottom: 15px;
    font-size: 20px;
}

.quick-add-card {
    cursor: pointer;
}

/* Study Controls */
.study-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

.study-controls select,
.manage-controls select {
    padding: 10px 15px;
    border-radius: 6px;
    background-color: var(--background-light);
    color: var(--text-primary);
    border: 1px solid #444;
    font-size: 14px;
    min-width: 180px;
}

.flashcard-counter {
    color: var(--text-secondary);
    font-size: 16px;
}

.study-buttons {
    display: flex;
    gap: 10px;
}

.study-buttons button {
    background-color: var(--background-light);
    color: var(--text-primary);
    border: 1px solid #444;
    padding: 10px 15px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
}

.study-buttons button:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Flashcard */
.flashcard-container {
    perspective: 1000px;
    margin: 0 auto 30px;
    max-width: 600px;
    height: 350px;
}

.flashcard {
    width: 100%;
    height: 100%;
    position: relative;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.flashcard.flipped {
    transform: rotateY(180deg);
}

.flashcard-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.8s;
    transform-style: preserve-3d;
}

.flashcard-front, .flashcard-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background-color: var(--background-light);
}

.flashcard-back {
    transform: rotateY(180deg);
    background-color: var(--background-light);
}

.card-category {
    position: absolute;
    top: 15px;
    left: 15px;
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 500;
}

.card-content {
    font-size: 20px;
    color: var(--text-primary);
    max-height: 250px;
    overflow-y: auto;
    padding: 10px;
}

/* Rating Buttons */
.rating-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.rating-btn {
    padding: 12px 25px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    font-weight: 500;
}

/* Removed rating button icon spacing */

.rating-btn[data-rating="hard"] {
    background-color: #f59e0b;
    color: white;
}

.rating-btn[data-rating="good"] {
    background-color: #10b981;
    color: white;
}

.rating-btn[data-rating="easy"] {
    background-color: #3b82f6;
    color: white;
}

.rating-btn:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

/* Manage Controls */
.manage-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

.flashcards-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 20px;
}

.flashcard-item {
    background-color: var(--background-light);
    border-radius: 8px;
    padding: 20px;
    position: relative;
}

.flashcard-item .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.flashcard-item .card-category {
    position: static;
    margin-bottom: 0;
}

.flashcard-item .card-difficulty {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
}

.flashcard-item .difficulty-new {
    background-color: #6b7280;
    color: white;
}

.flashcard-item .difficulty-hard {
    background-color: #f59e0b;
    color: white;
}

.flashcard-item .difficulty-good {
    background-color: #10b981;
    color: white;
}

.flashcard-item .difficulty-easy {
    background-color: #3b82f6;
    color: white;
}

.flashcard-item .card-preview {
    color: var(--text-primary);
    margin-bottom: 10px;
    font-size: 16px;
    line-height: 1.4;
    max-height: 60px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.flashcard-item .card-answer {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.4;
    max-height: 60px;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 10px;
}

.flashcard-item .card-stats {
    display: flex;
    justify-content: space-between;
    color: var(--text-secondary);
    font-size: 12px;
    padding-top: 10px;
    border-top: 1px solid #333;
}

.flashcard-item .item-actions {
    margin-top: 15px;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.flashcard-item .item-actions button {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.3s;
}

.flashcard-item .item-actions button:hover {
    color: var(--primary-color);
}

.flashcard-item .item-actions button.delete:hover {
    color: #ef4444;
}

/* No Cards Message */
.no-cards-message {
    text-align: center;
    padding: 50px 0;
    color: var(--text-secondary);
}

.no-cards-message i {
    font-size: 48px;
    color: var(--text-secondary);
    opacity: 0.5;
    margin-bottom: 15px;
}

.no-cards-message h3 {
    margin-bottom: 10px;
    color: var(--text-primary);
}

/* Edit Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background-color: var(--background-dark);
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    padding: 30px;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 20px;
    cursor: pointer;
}

.modal-title {
    margin-bottom: 20px;
    color: var(--primary-color);
}

/* Rating Feedback */
.rating-feedback {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    font-weight: 500;
    opacity: 1;
    max-width: 300px;
    text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
    .flashcard-container {
        height: 300px;
    }
    
    .study-controls, .manage-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .rating-buttons {
        flex-wrap: wrap;
    }
    
    .flashcards-list {
        grid-template-columns: 1fr;
    }
    
    .rating-feedback {
        max-width: 90%;
    }
}