body {
    font-family: 'Inter', sans-serif;
    background-color: #f4f7f9;
}

.header-banner {
    background-color: #34495e;
    /* Deep Indigo */
    color: white;
}

.card {
    background-color: #ffffff;
    border-radius: 0.75rem;
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease-in-out;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    border-color: #a5b4fc;
}

.btn-primary {
    background-color: #3b82f6;
    /* Brighter Blue */
    color: white;
    transition: background-color 0.3s ease;
}

.btn-primary:hover {
    background-color: #2563eb;
}

.btn-danger {
    background-color: #ef4444;
    color: white;
}

.btn-danger:hover {
    background-color: #dc2626;
}

.loader {
    border-top-color: #3b82f6;
    animation: spin 1s linear infinite;
}

.ai-loader {
    border-top-color: #3b82f6;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.ai-output {
    background-color: #eff6ff;
    border-left: 4px solid #3b82f6;
}

.ai-output h4 {
    font-size: 1.125rem;
    font-weight: 700;
    color: #1e40af;
    margin-bottom: 0.5rem;
}

.ai-output ul {
    list-style-type: none;
    padding-left: 0.5rem;
}

.ai-output li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.ai-output li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #3b82f6;
    font-weight: bold;
}

.ai-output strong {
    /* For FAQ Questions */
    color: #1e3a8a;
}

#videoList tr:hover {
    background-color: #f9fafb;
}