/* --- Basic Page Styles --- */
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            line-height: 1.6;
            background-color: #f9f9f9;
            color: #333;
            margin: 0;
            padding: 0;
        }

        /* --- Tutorial Container --- */
        .blender-tutorial {
            max-width: 800px;
            margin: 20px auto;
            padding: 25px;
            background-color: #ffffff;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }

        /* --- Headings --- */
        .blender-tutorial h1 {
            font-size: 2.2rem;
            color: #2c3e50;
            text-align: center;
            border-bottom: 2px solid #e0e0e0;
            padding-bottom: 10px;
            margin-bottom: 20px;
        }

        .blender-tutorial h2 {
            font-size: 1.7rem;
            color: #34495e;
            margin-top: 30px;
            padding-bottom: 5px;
            border-bottom: 1px solid #ddd;
        }

        /* --- Text & Lists --- */
        .blender-tutorial p {
            font-size: 1rem;
            margin-bottom: 15px;
        }

        .blender-tutorial ol,
        .blender-tutorial ul {
            padding-left: 20px;
        }

        .blender-tutorial li {
            margin-bottom: 12px;
        }

        .blender-tutorial ul li {
            margin-bottom: 8px;
        }

        /* --- Helper Classes --- */
        
        /* For keyboard shortcuts */
        .blender-tutorial .key  {
            display: inline-block;
            background-color: #ecf0f1;
            color: #34495e;
            font-family: "Consolas", "Courier New", monospace;
            font-size: 0.9em;
            font-weight: 600;
            padding: 3px 8px;
            border-radius: 4px;
            border: 1px solid #bdc3c7;
            box-shadow: 1px 1px 1px rgba(0,0,0,0.1);
            margin: 0 2px;
        }

        code {
            display: inline-block;
            background-color: #ecf0f1;
            color: #34495e;
            font-family: "Consolas", "Courier New", monospace;
            font-size: 0.9em;
            font-weight: 600;
            padding: 3px 8px;
            border-radius: 4px;
            border: 1px solid #bdc3c7;
            box-shadow: 1px 1px 1px rgba(0,0,0,0.1);
            margin: 0 2px;
        }
        
        /* For UI elements or settings */
        .blender-tutorial .ui {
            font-weight: 600;
            color: #2980b9;
        }

        /* For important notes */
        .blender-tutorial .note {
            background-color: #fffbe6;
            border: 1px solid #ffe58f;
            padding: 15px;
            border-radius: 5px;
        }
        .playvideo{
            width: 24px;
            margin-left: 3px
        }

          /* Modal styles */
        #videoModal {
            /* Starts hidden */
            display: none; 
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(0, 0, 0, 0.75); /* bg-black bg-opacity-75 */
            /* Will be changed to 'flex' by JS */
            align-items: center;
            justify-content: center;
            z-index: 50;
            padding: 1rem;
            opacity: 0; /* For fade-in */
            transition: opacity 0.3s ease-in-out;
        }
        
        /* This class will be toggled by JS to show/hide the modal */
        #videoModal.show {
            display: flex;
        }

        .modal-content {
            background-color: white;
            border-radius: 0.5rem; /* rounded-lg */
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); /* shadow-2xl */
            width: 100%;
            max-width: 48rem; /* max-w-3xl */
            position: relative;
            overflow: hidden;
        }

        /* Video aspect ratio container */
        .video-container {
            position: relative;
            padding-top: 56.25%; /* 16:9 Aspect Ratio (like aspect-w-16 aspect-h-9) */
        }

        #youtubeVideo {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border-bottom-left-radius: 0.5rem; /* rounded-b-lg */
            border-bottom-right-radius: 0.5rem; /* rounded-b-lg */
            border: 0; /* Remove default iframe border */
        }

        /* Buttons */
        #openModalBtn {
            background-color: #3182ce; /* bg-blue-600 */
            color: white;
            font-weight: 700;
            padding: 0.75rem 1.5rem; /* py-3 px-6 */
            border-radius: 0.5rem; /* rounded-lg */
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); /* shadow-lg */
            transition: all 0.3s ease-in-out;
            cursor: pointer;
            border: none;
        }

        #openModalBtn:hover {
            background-color: #2b6cb0; /* hover:bg-blue-700 */
            transform: scale(1.05); /* hover:scale-105 */
        }

        #closeModalBtn {
            position: absolute;
            top: 0.75rem; /* top-3 */
            right: 0.75rem; /* right-3 */
            color: white;
            background-color: rgba(0, 0, 0, 0.5); /* bg-black bg-opacity-50 */
            border-radius: 9999px; /* rounded-full */
            padding: 0.25rem; /* p-1 */
            transition: background-color 0.2s ease-in-out;
            z-index: 10;
            cursor: pointer;
            border: none;
            line-height: 1; /* Aligns SVG nicely */
        }

        #closeModalBtn:hover {
            background-color: rgba(0, 0, 0, 0.75); /* hover:bg-opacity-75 */
        }

        #closeModalBtn svg {
            width: 1.5rem; /* w-6 */
            height: 1.5rem; /* h-6 */
            display: block; /* Removes any extra space */
        }