/* Teaching Tools Module Styles */

/* Teaching Tools Modal */
#teaching-tools-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 10000;
    align-items: center;
    justify-content: center;
}

#teaching-tools-modal.show {
    display: flex;
}

.teaching-tools-modal-content {
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    max-width: 800px;
    width: 95%;
    max-height: 90vh;
    overflow: hidden;
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.teaching-tools-modal-content .modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-bottom: 1px solid #eee;
}

.teaching-tools-modal-content .modal-header h2 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: #333;
}

/* Teaching Tools Body */
.teaching-tools-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Section labels */
.teaching-tools-section-label {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
    text-align: center;
}

/* Current count section */
.teaching-tools-current-count-section {
    padding: 12px 16px;
    background: #e8f4fd;
    border-radius: 8px;
}

.teaching-tools-current-row {
    display: flex;
    gap: 24px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

/* 2x2 grid layout for current count display (2 rows) */
.teaching-tools-current-row.teaching-tools-current-row-4 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px 24px;
    justify-items: center;
}

.teaching-tool-current-item {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 180px;
    justify-content: flex-start;
}

.teaching-tool-current-item span {
    font-size: 14px;
    color: #1976d2;
    font-weight: 500;
    white-space: nowrap;
    min-width: 90px;
    text-align: right;
}

/* New section */
.teaching-tools-new-section {
    padding: 12px 16px;
    background: #f8f9fa;
    border-radius: 8px;
}

/* Tools Row - side by side layout */
.teaching-tools-row {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* 4-column layout for new tool variants */
.teaching-tools-row.teaching-tools-row-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

/* Teaching Tool Item */
.teaching-tool-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    background: #f8f9fa;
    transition: all 0.2s ease;
    flex: 1;
    min-width: 130px;
    max-width: 200px;
}

.teaching-tool-item:hover {
    border-color: var(--theme-color, #007AFF);
    background: #f0f7ff;
}

/* Tool Preview */
.teaching-tool-preview {
    width: 100%;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border-radius: 8px;
    padding: 6px;
}

.teaching-tool-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.teaching-tool-image.set-square-image {
    max-height: 70px;
}

/* Tool Label */
.teaching-tool-label {
    font-size: 14px;
    font-weight: 600;
    color: #333;
}

/* Counter Controls */
.teaching-tool-counter {
    display: flex;
    align-items: center;
    gap: 8px;
}

.counter-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 8px;
    background: var(--theme-color, #007AFF);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.counter-btn:hover:not(.disabled) {
    opacity: 0.9;
    transform: scale(1.05);
}

.counter-btn:active:not(.disabled) {
    transform: scale(0.95);
}

.counter-btn.disabled {
    background: #ccc;
    cursor: not-allowed;
    opacity: 0.6;
}

.counter-btn.disabled:hover {
    transform: none;
}

.counter-btn svg {
    stroke: white;
}

.counter-input {
    width: 50px;
    height: 32px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    text-align: center;
    font-size: 16px;
    font-weight: 600;
    color: #333;
    outline: none;
    transition: border-color 0.2s ease;
}

.counter-input:focus {
    border-color: var(--theme-color, #007AFF);
}

.counter-input::-webkit-inner-spin-button,
.counter-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.counter-input[type=number] {
    -moz-appearance: textfield;
}

/* Hint text */
.teaching-tools-hint {
    text-align: center;
    padding: 12px;
    background: #f0f7ff;
    border-radius: 8px;
    color: #666;
    font-size: 13px;
}

/* Footer */
.teaching-tools-footer {
    padding: 16px 24px;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: flex-end;
}

.teaching-tools-confirm-btn {
    padding: 10px 24px;
    background: var(--theme-color, #007AFF);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.teaching-tools-confirm-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.teaching-tools-confirm-btn:active {
    transform: translateY(0);
}

/* Teaching Tool Overlay (on canvas) */
.teaching-tool-overlay {
    position: fixed;
    cursor: move;
    z-index: 100;
    pointer-events: auto;
    touch-action: none;
}

.teaching-tool-overlay .teaching-tool-image-container {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.teaching-tool-overlay .teaching-tool-img {
    width: 100%;
    height: 100%;
    object-fit: fill;
    pointer-events: none;
    user-select: none;
}

/* Selection border - tight to image */
.teaching-tool-overlay.selected {
    outline: 2px solid var(--theme-color, #007AFF);
    outline-offset: 0;
}

/* Word-style resize handles */
.teaching-tool-resize-handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: #fff;
    border: 2px solid var(--theme-color, #007AFF);
    border-radius: 2px;
    display: none;
    z-index: 10;
}

.teaching-tool-overlay.selected .teaching-tool-resize-handle {
    display: block;
}

/* Handle positions */
.handle-nw { top: -5px; left: -5px; cursor: nw-resize; }
.handle-n { top: -5px; left: 50%; transform: translateX(-50%); cursor: n-resize; }
.handle-ne { top: -5px; right: -5px; cursor: ne-resize; }
.handle-e { top: 50%; right: -5px; transform: translateY(-50%); cursor: e-resize; }
.handle-se { bottom: -5px; right: -5px; cursor: se-resize; }
.handle-s { bottom: -5px; left: 50%; transform: translateX(-50%); cursor: s-resize; }
.handle-sw { bottom: -5px; left: -5px; cursor: sw-resize; }
.handle-w { top: 50%; left: -5px; transform: translateY(-50%); cursor: w-resize; }

/* Rotate handle */
.teaching-tool-rotate-handle {
    position: absolute;
    top: -35px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 24px;
    background: #fff;
    border: 2px solid var(--theme-color, #007AFF);
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: grab;
    z-index: 10;
}

.teaching-tool-rotate-handle:active {
    cursor: grabbing;
}

.teaching-tool-rotate-handle svg {
    width: 14px;
    height: 14px;
    stroke: var(--theme-color, #007AFF);
}

.teaching-tool-overlay.selected .teaching-tool-rotate-handle {
    display: flex;
}

/* Delete button */
.teaching-tool-delete-btn {
    position: absolute;
    top: -35px;
    right: -10px;
    width: 24px;
    height: 24px;
    background: #ff3b30;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all 0.2s ease;
}

.teaching-tool-delete-btn:hover {
    transform: scale(1.1);
    background: #e0352b;
}

.teaching-tool-delete-btn svg {
    stroke: white;
}

.teaching-tool-overlay.selected .teaching-tool-delete-btn {
    display: flex;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .teaching-tools-modal-content {
        max-width: 95%;
    }
    
    .teaching-tools-row.teaching-tools-row-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .teaching-tools-current-row.teaching-tools-current-row-4 {
        grid-template-columns: repeat(2, auto);
    }
    
    .teaching-tool-item {
        min-width: 120px;
    }
}

@media (max-width: 480px) {
    .teaching-tools-modal-content {
        width: 95%;
        max-height: 85vh;
    }
    
    .teaching-tools-body {
        padding: 16px;
    }
    
    .teaching-tools-row {
        flex-direction: column;
        align-items: center;
    }
    
    .teaching-tools-row.teaching-tools-row-4 {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }
    
    .teaching-tools-current-row.teaching-tools-current-row-4 {
        grid-template-columns: repeat(2, auto);
        gap: 12px;
    }
    
    .teaching-tool-item {
        max-width: 100%;
        width: 100%;
        min-width: auto;
    }
    
    .teaching-tool-preview {
        height: 50px;
    }
    
    .teaching-tool-label {
        font-size: 12px;
    }
}