@import url('https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300..800;1,300..800&display=swap');

        :root {
            --bg: #222222;
            --card-bg: #252525;
            --border: #343840;
            --text: #e6e8ec;
            --darker-text: #9aa1ad;
            --link: #38afff;
            --button: #e6e8ec;
            --button-text: #222222;
            --button-hover: #a6a8ac;
            --radius: 10px;
        }

        * {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            padding: 48px 20px;
            background: var(--bg);
            color: var(--text);
            font-family: "Open Sans", sans-serif;
            line-height: 1.55;
        }

        .container {
            max-width: 640px;
            margin: 0 auto;
        }

        h1 {
            font-size: 1.75rem;
            margin: 0 0 8px;
        }

        p {
            color: var(--darker-text);
            margin: 0 0 8px;
        }

        a {
            color: var(--link);
            text-decoration: none;
        }

        a:hover {
            text-decoration: underline;
        }

        #upload_form {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px;
            margin: 24px 0;
            box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
        }

        input[type="file"] {
            display: block;
            width: 100%;
            padding: 12px;
            border: 1px dashed var(--border);
            border-radius: 8px;
            background: var(--bg);
            color: var(--text);
            margin-bottom: 14px;
            font-size: 0.9rem;
        }

        #file_list:not(:empty) {
            border: 1px solid var(--border);
            border-radius: 8px;
            margin-bottom: 16px;
            overflow: hidden;
        }

        .file_row {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 14px;
            border-bottom: 1px solid var(--border);
            background: var(--card-bg);
        }

        .file_row:last-child {
            border-bottom: none;
        }

        .file_row .file_name {
            flex: 1;
            font-size: 0.9rem;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .file_row label {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--darker-text);
            cursor: pointer;
            user-select: none;
        }

        button[type="submit"] {
            background: var(--button);
            color: var(--button-text);
            border: none;
            padding: 10px 22px;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.15s ease;
        }

        button[type="submit"]:hover:not(:disabled) {
            background: var(--button-hover);
        }

        button[type="submit"]:disabled {
            background: var(--border);
            color: var(--darker-text);
            cursor: not-allowed;
        }

        .render_card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px 18px;
            margin-bottom: 12px;
            box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
        }

        .render_card p {
            color: var(--text);
            font-weight: 600;
            margin: 0 0 6px;
        }

        .render_card .progress_text {
            color: var(--darker-text);
            font-size: 0.85rem;
            margin-bottom: 10px;
        }

        .render_card video {
            max-width: 100%;
            border-radius: 8px;
            display: block;
            margin-bottom: 8px;
            background: #000;
        }

        .render_card a {
            font-size: 0.85rem;
            font-weight: 600;
        }

        .carousel {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .carousel_track {
            display: flex;
            gap: 12px;
            overflow-x: auto;
            scroll-behavior: smooth;
            padding-bottom: 4px;
            flex: 1;
            scrollbar-width: none;
        }

        html::-webkit-scrollbar {
            display: none;
        }

        .carousel_track .render_card {
            flex: 0 0 220px;
            margin-bottom: 0;
        }

        .carousel_btn {
            flex: 0 0 auto;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            border: 1px solid var(--border);
            background: var(--card-bg);
            color: var(--text);
            font-size: 1.1rem;
            line-height: 1;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.15s ease;
        }

        .carousel_btn:hover {
            background: var(--border);
        }