* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.6;
            color: #333;
            background: #f5f5f5;
            padding: 20px;
            transition: background-color 0.3s ease, color 0.3s ease;
        }

        body.dark-mode {
            background: #1a1a1a;
            color: #e0e0e0;
        }

        .container {
            max-width: 1000px;
            margin: 0 auto;
            background: white;
            padding: 40px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
            transition: background-color 0.3s ease, box-shadow 0.3s ease;
        }

        body.dark-mode .container {
            background: #2d2d2d;
            box-shadow: 0 2px 8px rgba(0,0,0,0.5);
        }

        .dark-mode-toggle {
            position: fixed;
            top: 20px;
            right: 20px;
            background: #ff3505;
            border: none;
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            cursor: pointer;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 2px 8px rgba(0,0,0,0.2);
            transition: transform 0.2s ease, background-color 0.3s ease;
            z-index: 1000;
        }

        .dark-mode-toggle:hover {
            transform: scale(1.1);
            background: #cc2a04;
        }

        .header-container {
            display: flex;
            align-items: center;
            gap: 20px;
            margin-bottom: 10px;
        }

        .logo {
            width: 64px;
            height: 64px;
            flex-shrink: 0;
        }

        h1 {
            font-size: 2.5em;
            margin: 0;
            color: #ff3505;
        }

        .subtitle {
            font-size: 1.2em;
            color: #7f8c8d;
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 2px solid #ff3505;
        }

        .back-link {
            display: inline-block;
            margin-bottom: 20px;
            color: #ff3505;
            text-decoration: none;
            font-weight: 500;
        }

        .back-link:hover {
            text-decoration: underline;
        }

        h2 {
            font-size: 1.8em;
            margin-top: 40px;
            margin-bottom: 20px;
            color: #ff3505;
        }

        h3 {
            font-size: 1.3em;
            margin-top: 30px;
            margin-bottom: 15px;
            color: #ff3505;
        }

        p {
            color: #555;
        }

        body.dark-mode p {
            color: #b0b0b0;
        }

        .loading {
            text-align: center;
            padding: 40px;
            color: #7f8c8d;
        }

        .error {
            background: #fee;
            border: 1px solid #fcc;
            color: #c33;
            padding: 15px;
            border-radius: 6px;
            margin: 20px 0;
        }

        body.dark-mode .error {
            background: #4a1a1a;
            border: 1px solid #822;
            color: #faa;
        }

        .info-grid {
            display: grid;
            grid-template-columns: 200px 1fr;
            gap: 15px;
            margin: 20px 0;
            background: #f8f9fa;
            padding: 20px;
            border-radius: 6px;
        }

        body.dark-mode .info-grid {
            background: #1a1a1a;
        }

        .info-label {
            font-weight: 600;
            color: #2c3e50;
        }

        body.dark-mode .info-label {
            color: #b0b0b0;
        }

        .info-value {
            color: #555;
        }

        body.dark-mode .info-value {
            color: #b0b0b0;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            background: white;
        }

        body.dark-mode table {
            background: #2d2d2d;
        }

        th, td {
            padding: 12px;
            text-align: left;
            border-bottom: 1px solid #ecf0f1;
        }

        body.dark-mode th,
        body.dark-mode td {
            border-bottom: 1px solid #444;
        }

        th {
            background: #f8f9fa;
            font-weight: 600;
            color: #2c3e50;
        }

        body.dark-mode th {
            background: #1a1a1a;
            color: #ff3505;
        }

        tr:hover {
            background: #f8f9fa;
        }

        body.dark-mode tr:hover {
            background: #3a3a3a;
        }

        code {
            background: #f4f4f4;
            padding: 2px 6px;
            border-radius: 3px;
            font-family: 'Courier New', monospace;
            font-size: 0.9em;
        }

        body.dark-mode code {
            background: #1a1a1a;
            color: #ff3505;
        }

        .section {
            margin: 30px 0;
        }

        a {
            color: #ff3505;
            text-decoration: none;
        }

        a:hover {
            text-decoration: underline;
        }

        footer {
            margin-top: 60px;
            padding-top: 30px;
            border-top: 1px solid #ecf0f1;
            text-align: center;
            color: #7f8c8d;
            font-size: 0.9em;
        }

        body.dark-mode footer {
            border-top: 1px solid #444;
            color: #999;
        }

        @media (max-width: 768px) {
            .container {
                padding: 20px;
            }

            .header-container {
                gap: 15px;
            }

            .logo {
                width: 48px;
                height: 48px;
            }

            h1 {
                font-size: 2em;
            }

            .info-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            table {
                font-size: 0.9em;
            }

            th, td {
                padding: 8px;
            }
        }