body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
    color: #202124;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    flex: 1;
}
.hidden {
    display: none !important;
}

#auth-container {
    text-align: center;
    margin-top: 5rem;
}

#auth-container h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #202124;
}

#auth-container p {
    font-size: 1.2rem;
    color: #5f6368;
    margin-bottom: 2rem;
}

.upload-section, .folders-section {
    background: white;
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #202124;
}

.drop-zone {
    border: 2px dashed #dadce0;
    border-radius: 8px;
    padding: 3rem;
    text-align: center;
    transition: all 0.3s;
}

.drop-zone.highlight {
    border-color: #4285F4;
    background-color: #e8f0fe;
}

#upload-btn {
    background-color: #4285F4;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s;
}

#upload-btn:hover {
    background-color: #3367d6;
}

.folders-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .folders-grid {
        grid-template-columns: 1fr;
    }
}

.about-section {
    background: white;
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.feature-card {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card i {
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
    color: #3b82f6;
}

.integrations {
    margin-top: 4rem;
}

.integration-logos {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.integration-logos img {
    height: 60px;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.integration-logos img:hover {
    opacity: 1;
}