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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

header {
    text-align: center;
    margin-bottom: 30px;
}

header h1 {
    color: #333;
    margin-bottom: 10px;
}

header p {
    color: #666;
}

.upload-area {
    border: 2px dashed #ccc;
    border-radius: 10px;
    padding: 40px;
    text-align: center;
    transition: all 0.3s;
    cursor: pointer;
    background: #fafafa;
}

.upload-area:hover {
    border-color: #667eea;
    background: #f5f5f5;
}

.upload-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.small {
    font-size: 12px;
    color: #999;
    margin-top: 10px;
}

.btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    margin-top: 15px;
    transition: transform 0.2s;
}

.btn:hover {
    transform: translateY(-2px);
}

.message {
    margin-top: 20px;
    padding: 15px;
    border-radius: 8px;
}

.error {
    background: #fee;
    color: #c33;
    border: 1px solid #fcc;
}

.result-card {
    margin-top: 30px;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 10px;
}

.preview-img {
    max-width: 100%;
    max-height: 300px;
    margin: 15px 0;
    border-radius: 8px;
}

.link-box {
    margin: 15px 0;
}

.link-box label {
    display: block;
    font-size: 14px;
    font-weight: bold;
    margin-bottom: 5px;
    color: #555;
}

.copy-container {
    display: flex;
    gap: 10px;
}

.copy-container input {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    background: white;
    font-size: 12px;
}

.copy-btn {
    background: #667eea;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
}

.copy-btn:hover {
    background: #5a67d8;
}

.gallery-link {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.gallery-link a {
    color: #667eea;
    text-decoration: none;
    font-weight: bold;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.gallery-item {
    background: #f9f9f9;
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.2s;
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.gallery-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.gallery-info {
    padding: 10px;
}

.filename {
    font-size: 12px;
    color: #666;
    margin-bottom: 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.copy-btn-small {
    width: 100%;
    background: #667eea;
    color: white;
    border: none;
    padding: 6px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 12px;
}

@media (max-width: 600px) {
    .container {
        padding: 20px;
    }
    
    .copy-container {
        flex-direction: column;
    }
}