:root {
    --primary: #ff0000;
    --background: #0f0f0f;
    --text: #ffffff;
}

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

body {
    font-family: 'Segoe UI', sans-serif;
    background: var(--background);
    color: var(--text);
    min-height: 100vh;
    padding: 2rem;
}

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

h1 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary);
}

#urlInput {
    width: 100%;
    padding: 1rem;
    margin-bottom: 2rem;
    background: #1a1a1a;
    border: 2px solid #303030;
    color: var(--text);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

#urlInput:focus {
    outline: none;
    border-color: var(--primary);
}

.thumbnails {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.thumbnail-container {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    background: #1a1a1a;
    transition: transform 0.3s ease;
}

.thumbnail-container:hover {
    transform: translateY(-5px);
}

.thumbnail {
    width: 100%;
    height: auto;
    display: block;
}

.download-link {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--primary);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    transition: opacity 0.3s ease;
    text-decoration: none;
    font-size: 0.9rem;
    target-new: tab;
}

.download-link:hover {
    opacity: 0.9;
}

.size-label {
    position: absolute;
    bottom: 10px;
    left: 10px;
    background: rgba(0,0,0,0.7);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.9rem;
}

.error {
    color: #ff4444;
    text-align: center;
    margin-top: 1rem;
}