* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

html, body {
    background-color: #f5f5f5;
    color: #333;
    height: 100%;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

.container {
    max-width: 500px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.header {
    text-align: center;
    margin-bottom: 10px;
}

.subtitle {
    color: #666;
    margin-top: -10px;
    margin-bottom: 10px;
}

.history-link {
    display: inline-block;
    margin-bottom: 10px;
    padding: 5px 12px;
    background-color: #333;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-size: 0.9rem;
    transition: background-color 0.3s;
}

.history-link:hover {
    background-color: #555;
}

.swipe-container {
    position: relative;
    flex: 1;
    min-height: 400px;
    margin-bottom: 20px;
    perspective: 1000px;
    border-style: solid;
    border-width: 8px;
    border-left-color: #ff4757; /* Red - Left (Discard) */
    border-right-color: #2ed573; /* Green - Right (Keep) */
    border-top-color: #1e90ff; /* Blue - Top (Favorite) */
    border-bottom-color: #ffa502; /* Yellow - Bottom (Review Later) */
    border-radius: 15px;
}

.image-card {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease-out;
    transform-origin: center center;
    background-color: white;
    touch-action: none; /* Prevents default touch actions like scrolling */
    cursor: grab; /* Indicates the card is draggable */
}

/* Animation for new card sliding in from left (desktop) */
@keyframes slideInFromLeft {
    0% {
        transform: translateX(-100%) rotate(-5deg);
        opacity: 0;
    }
    100% {
        transform: translateX(0) rotate(0deg);
        opacity: 1;
    }
}

.image-card.new-card {
    animation: slideInFromLeft 0.25s ease-out forwards;
    will-change: transform, opacity;
}

/* Simple fade-in animation for mobile */
@keyframes fadeIn {
    0% {
        opacity: 0.4;
    }
    100% {
        opacity: 1;
    }
}

.image-card.new-card-mobile {
    animation: fadeIn 0.2s ease-out forwards;
    will-change: opacity;
}

.image-card:active {
    cursor: grabbing; /* Changes cursor when actively dragging */
}

.image-card img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: opacity 0.3s ease;
}

.loading-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #999;
    font-weight: bold;
    opacity: 0;
    transition: opacity 0.3s;
}

.image-card.loading .loading-indicator {
    opacity: 1;
}

.image-card.swiping {
    transition: none; /* Remove transition during active swiping */
}

.image-card.swipe-left {
    transform: translateX(-350%) rotate(-15deg);
    opacity: 0;
    transition: transform 0.5s ease-out, opacity 0.25s ease-out;
}

.image-card.swipe-right {
    transform: translateX(350%) rotate(15deg);
    opacity: 0;
    transition: transform 0.5s ease-out, opacity 0.25s ease-out;
}

.image-card.swipe-up {
    transform: translateY(-350%) rotate(5deg);
    opacity: 0;
    transition: transform 0.5s ease-out, opacity 0.25s ease-out;
}

.image-card.swipe-down {
    transform: translateY(350%) rotate(-5deg);
    opacity: 0;
    transition: transform 0.5s ease-out, opacity 0.25s ease-out;
}

.action-hint {
    position: absolute;
    background-color: rgba(255, 255, 255, 0.8);
    padding: 8px 15px;
    border-radius: 20px;
    font-weight: bold;
    opacity: 0;
    transition: opacity 0.3s;
}

.left-hint {
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: #ff4757;
}

.right-hint {
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: #2ed573;
}

.up-hint {
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    color: #1e90ff;
}

.down-hint {
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    color: #ffa502;
}

.action-buttons {
    display: flex;
    justify-content: space-between;
    margin: 15px 0 20px;
    width: 100%;
}

.action-btn {
    flex: 1;
    padding: 12px 5px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.2s;
    margin: 0 5px;
    text-align: center;
    font-size: 0.9rem;
    white-space: nowrap;
}

#btn-left {
    background-color: #ff4757;
    color: white;
}

#btn-right {
    background-color: #2ed573;
    color: white;
}

#btn-up {
    background-color: #1e90ff;
    color: white;
}

#btn-down {
    background-color: #ffa502;
    color: white;
}

.action-btn:hover {
    transform: scale(1.05);
}

.action-btn:active {
    transform: scale(0.95);
}

.status-area {
    text-align: center;
    padding: 15px;
    background-color: white;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

#last-action {
    font-weight: bold;
    margin-top: 5px;
    margin-bottom: 15px;
}

.swipe-legend {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 10px;
}

.legend-item {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
}

.legend-color {
    display: inline-block;
    width: 15px;
    height: 15px;
    border-radius: 50%;
    margin-right: 5px;
}

.left-color {
    background-color: #ff4757;
}

.right-color {
    background-color: #2ed573;
}

.up-color {
    background-color: #1e90ff;
}

.down-color {
    background-color: #ffa502;
}

/* Mobile-specific styles */
@media (max-width: 768px) {
    .container {
        padding: 10px;
        max-width: 100%;
    }
    
    /* Override desktop animation for mobile */
    .image-card.new-card {
        animation: none;
    }
    
    .swipe-container {
        min-height: 60vh;
        margin: 10px 0 15px;
    }
    
    .header {
        margin-bottom: 10px;
    }
    
    /* Hide action buttons on mobile as swiping is the primary interaction */
    .action-buttons {
        display: none;
    }
    
    /* Hide the swipe legend on mobile to save space */
    .swipe-legend {
        display: none;
    }
    
    /* Make sure the history link is prominent but compact */
    .history-link {
        display: block;
        text-align: center;
        margin: 8px auto;
        padding: 6px 15px;
        font-size: 0.9rem;
    }
    
    /* Enhance swipe hints for better visibility on mobile */
    .swipe-actions .action-hint {
        font-size: 0.9rem;
        padding: 5px;
        background-color: rgba(0, 0, 0, 0.5);
        color: white;
        border-radius: 4px;
    }
    
    /* Adjust modal for mobile */
    .modal-content {
        width: 90%;
        margin: 20% auto;
    }
}

/* Modal styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    overflow: auto;
}

.modal-content {
    position: relative;
    margin: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 90%;
    height: 90%;
    max-width: 1200px;
    padding: 20px;
}

#fullscreen-image {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border: 2px solid white;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

.close-modal {
    position: absolute;
    top: 10px;
    right: 20px;
    color: white;
    font-size: 35px;
    font-weight: bold;
    cursor: pointer;
    z-index: 1001;
}

.close-modal:hover,
.close-modal:focus {
    color: #bbb;
    text-decoration: none;
}

.modal-info {
    margin-top: 15px;
    color: white;
    background-color: rgba(0, 0, 0, 0.5);
    padding: 10px 20px;
    border-radius: 5px;
    text-align: center;
}

/* Make the card clickable */
.image-card {
    cursor: pointer;
}

.image-card::after {
    content: '🔍';
    position: absolute;
    bottom: 10px;
    right: 10px;
    background-color: rgba(255, 255, 255, 0.7);
    color: #333;
    padding: 5px 10px;
    border-radius: 50%;
    font-size: 16px;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.image-card:hover::after {
    opacity: 1;
}