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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #f5f5f5;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

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

h1 {
    color: #ff4500;
    margin-bottom: 20px;
    font-size: 2.5rem;
}

.controls {
    display: flex;
    gap: 10px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

#subredditInput {
    padding: 12px 16px;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    width: 300px;
    max-width: 100%;
}

#subredditInput:focus {
    outline: none;
    border-color: #ff4500;
}

#loadButton {
    padding: 12px 24px;
    background-color: #ff4500;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

#loadButton:hover {
    background-color: #e03d00;
}

#loadButton:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.loading {
    text-align: center;
    font-size: 18px;
    color: #666;
    margin: 20px 0;
}

.loading-more {
    text-align: center;
    font-size: 16px;
    color: #666;
    margin: 20px 0;
    padding: 20px;
}

.error {
    text-align: center;
    color: #d32f2f;
    background-color: #ffebee;
    padding: 15px;
    border-radius: 6px;
    margin: 20px 0;
}

.hidden {
    display: none;
}

.current-subreddits {
    margin-top: 15px;
    text-align: center;
    color: #666;
    font-size: 14px;
}

.subreddit-tag {
    display: inline-block;
    background-color: #ff4500;
    color: white;
    padding: 4px 8px;
    margin: 2px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.image-grid {
    columns: 4;
    column-gap: 20px;
    margin-top: 20px;
}

.image-item {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    break-inside: avoid;
    margin-bottom: 20px;
    display: inline-block;
    width: 100%;
}

.image-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.image-item img {
    width: 100%;
    height: auto;
    display: block;
    max-width: 100%;
}

.image-info {
    padding: 15px;
}

.image-title {
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.image-meta {
    color: #666;
    font-size: 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.upvotes {
    color: #ff4500;
    font-weight: 500;
}

@media (max-width: 1200px) {
    .image-grid {
        columns: 3;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .controls {
        flex-direction: column;
    }
    
    #subredditInput {
        width: 100%;
    }
    
    .image-grid {
        columns: 2;
        column-gap: 15px;
    }
}

@media (max-width: 480px) {
    .image-grid {
        columns: 1;
    }
}