/* Custom Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInDelay {
    0% { opacity: 0; }
    50% { opacity: 0; }
    100% { opacity: 1; }
}

@keyframes fadeInLongDelay {
    0% { opacity: 0; }
    70% { opacity: 0; }
    100% { opacity: 1; }
}

@keyframes slideUp {
    from { 
        opacity: 0;
        transform: translateY(20px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes gradientFlow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Animation Classes */
.animate-fade-in {
    animation: fadeIn 1s ease-out forwards;
}

.animate-fade-in-delay {
    animation: fadeInDelay 2s ease-out forwards;
}

.animate-fade-in-delay-long {
    animation: fadeInLongDelay 3s ease-out forwards;
}

.animate-slide-up {
    animation: slideUp 1s ease-out forwards;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

/* Custom Styles */
.bg-gradient-animated {
    background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
    background-size: 400% 400%;
    animation: gradientFlow 15s ease infinite;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(31, 41, 55, 0.5);
}

::-webkit-scrollbar-thumb {
    background: rgba(139, 92, 246, 0.5);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(139, 92, 246, 0.8);
}

/* Input Range Styling */
input[type=range] {
    -webkit-appearance: none;
    height: 6px;
    background: #4B5563;
    border-radius: 3px;
    outline: none;
}

input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #8B5CF6;
    cursor: pointer;
}

input[type=range]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #8B5CF6;
    cursor: pointer;
    border: none;
}

/* Focus States */
button:focus, input:focus, textarea:focus, select:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.5);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .flex.h-screen {
        flex-direction: column;
    }
    
    .w-1/3 {
        width: 100%;
        height: auto;
    }
    
    .h-full {
        height: auto;
    }

    /* Adjust column heights for mobile */
    .h-1/3 {
        height: 33.333vh;
    }

    /* Make sure the preview is visible on mobile */
    #preview-container {
        min-height: 200px;
    }

    /* Adjust font sizes for mobile */
    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    /* Ensure buttons are large enough to tap on mobile */
    button {
        min-height: 44px;
        min-width: 44px;
    }
}

/* WebGL Canvas */
#webgl-canvas {
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

/* Image Hover Effects */
.history-item img {
    transition: transform 0.3s ease;
}

.history-item:hover img {
    transform: scale(1.03);
}

/* Fullscreen Modal */
#fullscreen-modal {
    transition: opacity 0.3s ease;
}

#fullscreen-modal.hidden {
    opacity: 0;
    pointer-events: none;
}

#fullscreen-modal:not(.hidden) {
    opacity: 1;
}

#close-fullscreen {
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

#close-fullscreen:hover {
    opacity: 1;
}

/* Loading Animation */
#loading-animation {
    transition: opacity 0.3s ease;
}

#loading-animation.hidden {
    opacity: 0;
    pointer-events: none;
}

#loading-animation:not(.hidden) {
    opacity: 1;
}

/* Download Instruction */
#download-instruction {
    transition: opacity 0.3s ease;
    animation: fadeIn 0.3s ease-out forwards;
    z-index: 10;
}

#download-instruction.hidden {
    opacity: 0;
    pointer-events: none;
}

#download-instruction:not(.hidden) {
    opacity: 1;
}

/* Mobile-specific adjustments */
@media (max-width: 640px) {
    /* Make history grid single column on small screens */
    #history-grid {
        grid-template-columns: 1fr;
    }
    
    /* Adjust padding for smaller screens */
    .p-4 {
        padding: 0.75rem;
    }
    
    /* Make sure the preview image fits on small screens */
    #preview-image, #fullscreen-image {
        max-width: 90vw;
        max-height: 70vh;
        object-fit: contain;
    }
    
    /* Adjust download instruction for mobile */
    #download-instruction {
        font-size: 0.75rem;
        padding: 0.5rem;
    }
}

/* 改进图片显示逻辑 */
/* 确保图片在所有屏幕尺寸下都能正确显示 */
#preview-container {
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

#preview-image {
    object-fit: contain;
    max-width: 100%;
    max-height: 100%;
    transition: all 0.3s ease;
}

/* 在小屏幕上进一步限制图片尺寸 */
@media (max-width: 480px) {
    #preview-image {
        max-width: 95%;
        max-height: 95%;
    }
    
    /* 确保预览容器有合适的高度 */
    #preview-section .flex-grow {
        min-height: 250px;
        height: 40vh;
    }
}

/* 确保全屏模式下的图片也能正确显示 */
#fullscreen-modal {
    display: flex;
    align-items: center;
    justify-content: center;
}

#fullscreen-image {
    object-fit: contain;
    max-width: 95vw;
    max-height: 85vh;
}

/* 确保在移动设备上的标签式布局中图片不会溢出 */
.section-content {
    overflow: hidden;
}

/* 确保图片容器在移动设备上有足够的空间 */
@media (max-width: 768px) {
    #preview-container {
        width: 100%;
        height: 100%;
        max-height: 40vh;
    }
}

/* Counter styles */
.counter-stats {
    font-family: 'Courier New', monospace;
    letter-spacing: 0.5px;
    opacity: 0.8;
    transition: opacity 0.3s ease;
    text-shadow: 0 0 2px rgba(0, 0, 0, 0.5);
    color: white;
}

.counter-stats:hover {
    opacity: 1;
}

.counter-stats span {
    color: white;
}