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

body {
    font-family: 'Arial', sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 2rem;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

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

.auth-form, .upload-form {
    max-width: 500px;
    margin: 0 auto;
    padding: 2rem;
    background-color: #f8f9fa;
    border-radius: 8px;
}

.input-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: #2c3e50;
    font-weight: bold;
}

input[type="file"],
input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

button {
    background-color: #3498db;
    color: white;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #2980b9;
}

.message {
    margin: 1rem 0;
    padding: 1rem;
    border-radius: 4px;
    background-color: #f8f9fa;
    border-left: 4px solid #3498db;
}

.gallery-toggle {
    display: block;
    margin: 2rem auto;
}

.gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    padding: 1rem;
    display: none;
}

.image-container {
    flex: 0 0 calc(33.333% - 1rem);
    background-color: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.image-container img {
    width: 100%;
    height: auto;
    border-radius: 4px;
    margin-bottom: 0.5rem;
}

.image-link {
    word-break: break-all;
    font-size: 0.9rem;
    color: #666;
}

@media (max-width: 768px) {
    .image-container {
        flex: 0 0 calc(50% - 1rem);
    }
}

@media (max-width: 480px) {
    .image-container {
        flex: 0 0 100%;
    }
}