* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    background-color: #f5f5f5;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

h1 {
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50;
}

.upload-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.upload-box {
    width: 100%;
    max-width: 500px;
    height: 200px;
    border: 2px dashed #3498db;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: border-color 0.3s ease;
    background-color: #fff;
}

.upload-box:hover {
    border-color: #2980b9;
}

.upload-content {
    text-align: center;
}

.upload-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
}

.browse-text {
    color: #3498db;
    text-decoration: underline;
    cursor: pointer;
}

button {
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#detectButton {
    background-color: #3498db;
    color: white;
}

#detectButton:disabled {
    background-color: #bdc3c7;
    cursor: not-allowed;
}

#testButton {
    background-color: #2ecc71;
    color: white;
}

#detectButton:hover:not(:disabled) {
    background-color: #2980b9;
}

#testButton:hover {
    background-color: #27ae60;
}

.results-section {
    margin-top: 2rem;
}

.image-container {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.image-box {
    flex: 1;
    min-width: 300px;
    max-width: 500px;
    background-color: white;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.image-box h3 {
    margin-bottom: 1rem;
    text-align: center;
}

.image-box img {
    width: 100%;
    height: auto;
    border-radius: 4px;
    display: none;
}

.loading-spinner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255,255,255,0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}