/* Deep Dive Shared Styles */

.deepdive-container {
    max-width: 700px;
    margin: 0 auto;
    padding: 20px;
}

.instruction {
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 30px;
    color: var(--text-primary, #1A1A1A);
}

.progress {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary, #666);
    margin-bottom: 20px;
}

/* Who Said It / Matching Game Styles */

.matching-container {
    display: flex;
    gap: 30px;
    justify-content: space-between;
}

.questions-column,
.answers-column {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.question-item,
.answer-item {
    padding: 15px 20px;
    background: var(--card-bg, #F5F5F5);
    border: 2px solid var(--card-border, #E0E0E0);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}

.question-item:hover,
.answer-item:hover {
    border-color: var(--selected-border, #4A90E2);
    transform: translateY(-2px);
}

.question-item.selected,
.answer-item.selected {
    background: var(--selected-bg, #E3F2FD);
    border-color: var(--selected-border, #4A90E2);
    border-width: 3px;
}

.question-item.matched,
.answer-item.matched {
    background: var(--success-bg, #E8F5E9);
    border-color: var(--success-color, #4CAF50);
    opacity: 0.7;
    cursor: default;
    position: relative;
}

.question-item.matched::after,
.answer-item.matched::after {
    content: '✓';
    position: absolute;
    top: 5px;
    right: 10px;
    color: var(--success-color, #4CAF50);
    font-weight: bold;
    font-size: 1.2rem;
}

.question-item.error,
.answer-item.error {
    animation: shake 0.3s;
    border-color: var(--error-color, #D32F2F);
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.celebration {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--bg-secondary, #ffffff);
    padding: 40px 60px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg, 0 8px 32px rgba(0, 0, 0, 0.2));
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-success, #4caf50);
    z-index: 1000;
    animation: celebrate 0.5s ease;
}

@keyframes celebrate {
    0% { transform: translate(-50%, -50%) scale(0.5); opacity: 0; }
    100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
}

/* Put in Order / Sequential Game Styles */

.ordering-container {
    max-width: 500px;
    margin: 0 auto;
}

.ordering-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ordering-item {
    padding: 15px 20px;
    background: var(--card-bg, #F5F5F5);
    border: 2px solid var(--card-border, #E0E0E0);
    border-radius: 8px;
    cursor: grab;
    transition: all 0.2s ease;
    user-select: none;
    position: relative;
    display: flex;
    align-items: center;
    gap: 15px;
}

.ordering-item::before {
    content: '☰';
    color: #999;
    font-size: 1.2rem;
}

.ordering-item:hover {
    border-color: var(--selected-border, #4A90E2);
    transform: translateY(-2px);
}

.ordering-item.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

.ordering-item.drag-over {
    border-color: var(--selected-border, #4A90E2);
    border-style: dashed;
}

.ordering-hint {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary, #666);
    margin: 20px 0;
}

.submit-button {
    display: block;
    margin: 30px auto 0;
    padding: 12px 40px;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    background: var(--primary-color, #4A90E2);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.submit-button:hover {
    background: var(--primary-hover, #357ABD);
    transform: translateY(-2px);
}

.submit-button:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

.feedback-message {
    text-align: center;
    margin: 20px auto 0;
    padding: 15px;
    border-radius: 8px;
    font-weight: 600;
    max-width: 500px;
    box-sizing: border-box;
}

.feedback-message.success {
    background: var(--success-bg, #E8F5E9);
    color: var(--success-color, #4CAF50);
}

.feedback-message.error {
    background: var(--error-bg, #FFEBEE);
    color: var(--error-color, #D32F2F);
}

/* Group Them / Hierarchical Game Styles */

.grouping-container {
    max-width: 700px;
    margin: 0 auto;
}

.items-pool {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--pool-bg, #F9F9F9);
    border: 2px dashed var(--card-border, #E0E0E0);
    border-radius: 8px;
    min-height: 80px;
}

.group-buckets {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.group-bucket {
    border: 2px solid var(--card-border, #E0E0E0);
    border-radius: 8px;
    padding: 15px;
    background: var(--card-bg, #F5F5F5);
}

.group-bucket.drag-over {
    border-color: var(--selected-border, #4A90E2);
    border-style: dashed;
    background: var(--selected-bg, #E3F2FD);
}

.bucket-header {
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: var(--text-primary, #1A1A1A);
}

.bucket-items {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    min-height: 50px;
}

.grouping-item {
    padding: 10px 15px;
    background: var(--card-bg, #ffffff);
    border: 2px solid var(--card-border, #E0E0E0);
    border-radius: 6px;
    cursor: grab;
    transition: all 0.2s ease;
    user-select: none;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-primary, #333);
}

.grouping-item:hover {
    border-color: var(--selected-border, #4A90E2);
    transform: scale(1.05);
}

.grouping-item.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

.grouping-item.correct {
    background: var(--success-bg, #E8F5E9);
    border-color: var(--success-color, #4CAF50);
    cursor: default;
}

/* Find the Partner / Pairing Game Styles */

.partner-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    max-width: 500px;
    margin: 0 auto;
}

.partner-item {
    padding: 20px;
    background: var(--card-bg, #F5F5F5);
    border: 2px solid var(--card-border, #E0E0E0);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
    text-align: center;
    font-weight: 500;
    color: var(--text-primary, #333);
}

.partner-item:hover {
    border-color: var(--selected-border, #4A90E2);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.partner-item.selected {
    background: var(--selected-bg, #E3F2FD);
    border-color: var(--selected-border, #4A90E2);
    border-width: 3px;
}

.partner-item.paired {
    background: var(--success-bg, #E8F5E9);
    border-color: var(--success-color, #4CAF50);
    opacity: 0.7;
    cursor: default;
    position: relative;
}

.partner-item.paired::after {
    content: '✓';
    position: absolute;
    top: 5px;
    right: 10px;
    color: var(--success-color, #4CAF50);
    font-weight: bold;
    font-size: 1.2rem;
}

.partner-item.error {
    animation: shake 0.3s;
    border-color: var(--error-color, #D32F2F);
}

/* Outlier Game Styles */

.outlier-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    max-width: 500px;
    margin: 0 auto;
}

.outlier-item {
    padding: 25px 20px;
    background: var(--card-bg, #F5F5F5);
    border: 2px solid var(--card-border, #E0E0E0);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
    text-align: center;
    font-weight: 500;
    font-size: 1.1rem;
    color: var(--text-primary, #333);
}

.outlier-item:hover {
    border-color: var(--selected-border, #4A90E2);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.outlier-item.correct {
    background: var(--success-bg, #E8F5E9);
    border-color: var(--success-color, #4CAF50);
    border-width: 3px;
    cursor: default;
    position: relative;
}

.outlier-item.correct::after {
    content: '✓';
    position: absolute;
    top: 8px;
    right: 12px;
    color: var(--success-color, #4CAF50);
    font-weight: bold;
    font-size: 1.5rem;
}

.outlier-item.error {
    animation: shake 0.3s;
    border-color: var(--error-color, #D32F2F);
    background: var(--error-bg, #FFEBEE);
}

/* Touch Drag Support for Mobile */

.touch-dragging {
    background: var(--card-bg, #ffffff);
    border: 2px solid var(--selected-border, #4A90E2);
    border-radius: 8px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    opacity: 0.95;
    transform: scale(1.05);
    z-index: 10000;
    pointer-events: none;
}

/* Timeline-specific touch dragging */
.timeline-item.touch-dragging {
    display: flex;
    flex-direction: column;
    padding: 15px 20px;
}

/* Disable hover effects on touch devices */
@media (hover: none) and (pointer: coarse) {
    .ordering-item,
    .grouping-item {
        cursor: default;
    }

    .ordering-item:hover,
    .grouping-item:hover {
        transform: none;
        border-color: var(--card-border, #E0E0E0);
    }

    .ordering-item:active,
    .grouping-item:active {
        transform: scale(0.98);
        border-color: var(--selected-border, #4A90E2);
    }

    /* Ensure drag-over state is visible on touch */
    .ordering-item.drag-over,
    .group-bucket.drag-over,
    .items-pool.drag-over {
        border-color: var(--selected-border, #4A90E2);
        border-style: dashed;
        background: var(--selected-bg, #E3F2FD);
    }
}