:root {
            --bg-color: #d3d4d4;
            --text-color: #363636;
            --border-color: #00d1c0;
            --textbox-color: #ffffff;
            --border-color-inverted: #098f84;
        }

        [data-theme="dark"] {
            --bg-color: #2e2e2e;
            --text-color: #cccccc;
            --border-color: #4c00ff;
            --textbox-color: #bebebe;
            --border-color-inverted: #1d267c;
        }

        body {
            background-color: var(--bg-color);
            color: var(--text-color);
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
        }

        header {
            position: relative;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem;
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--border-color-inverted) 0 2px 5px;
        }

        header h1 {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            margin: 0;
            text-shadow: var(--border-color) 2px 2px 0;
        }

        h1 {
            margin: 0;
        }

        .theme-toggle {
            padding: 0.5rem 1rem;
            cursor: pointer;
            border: none;   
            border-radius: 4px;
            background: var(--border-color);
            color: var(--text-color);
        }

        .main-container {
            max-width: 800px;
            margin: 20px auto;
            padding: 20px;
            border: 2px solid var(--border-color);
            border-radius: 50px;
            background-color: var(--bg-color);
        }

        .app-input {
            margin-bottom: 1rem;
        }

        .app-input label {
            display: block;
            margin-bottom: 0.25rem;
        }

        .app-input input[type="file"] {
            width: 100%;
        }

        .download-button {
            display: block;
            margin: 2rem auto 0;
            padding: 1rem 2rem;
            background: #0078d7;
            color: white;
            border: none;
            border-radius: 6px;
            cursor: pointer;
        }

        .download-button:hover {
            background: #005fa3;
        }
        .app-input
        input[type="text"] {
            width: 650px;
            padding: 5px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            background-color: var(--textbox-color);
        }

        select {
            width: 100%;
            max-width: 300px;
            padding: 8px 12px;
            font-size: 1rem;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background-color: var(--textbox-color);
            cursor: pointer;
        }
        
        select:hover,
        select:focus {
            border-color: var(--border-color);
            outline: none;
        }

        video {
            display: block;
            max-width: 100%;
            border-radius: 20px;
            margin-top: 20px;
            box-shadow: 0 0 15px var(--border-color);
            background-color: black;
        }