:root {
            --primary-color: #4361ee;
            --secondary-color: #3f37c9;
            --accent-color: #4895ef;
            --text-color: #2b2d42;
            --bg-color: #f8f9fa;
            --card-bg: #ffffff;
            --shadow-color: rgba(0, 0, 0, 0.1);
        }

        [data-theme="dark"] {
            --primary-color: #4895ef;
            --secondary-color: #4361ee;
            --accent-color: #4cc9f0;
            --text-color: #f8f9fa;
            --bg-color: #121212;
            --card-bg: #1e1e1e;
            --shadow-color: rgba(0, 0, 0, 0.3);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            background-color: var(--bg-color);
            color: var(--text-color);
            transition: background-color 0.3s, color 0.3s;
            min-height: 100vh;
            padding: 20px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }

        h1 {
            text-align: center;
            margin-bottom: 30px;
            color: var(--primary-color);
        }

        .app-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .form-container {
            background-color: var(--card-bg);
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px var(--shadow-color);
        }

        .form-group {
            margin-bottom: 20px;
        }

        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }

        input, select {
            width: 100%;
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 5px;
            background-color: var(--card-bg);
            color: var(--text-color);
            transition: border-color 0.3s;
        }

        input:focus, select:focus {
            outline: none;
            border-color: var(--primary-color);
        }

        .btn {
            display: inline-block;
            padding: 12px 24px;
            background-color: var(--primary-color);
            color: white;
            border: none;
            border-radius: 5px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
            cursor: pointer;
        }

        .btn:hover {
            background-color: var(--secondary-color);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px var(--shadow-color);
        }

        .btn-secondary {
            background-color: #6c757d;
        }

        .btn-secondary:hover {
            background-color: #5a6268;
        }

        .name-tag-container {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .string {
            position: absolute;
            top: -80px;
            width: 2px;
            height: 80px;
            background: linear-gradient(to bottom, var(--text-color), transparent);
        }

        .name-tag {
            width: 350px;
            background-color: var(--card-bg);
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 10px 30px var(--shadow-color);
            text-align: center;
            transform-origin: top center;
            position: relative;
            cursor: grab;
        }

        .name-tag:active {
            cursor: grabbing;
        }

        .tag-header {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-color);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 25px;
        }

        .name {
            margin-bottom: 20px;
        }

        .first-name {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-color);
            margin-bottom: 5px;
        }

        .last-name {
            font-size: 24px;
            font-weight: 600;
            color: var(--text-color);
            opacity: 0.9;
        }

        .position {
            font-size: 18px;
            color: var(--accent-color);
            margin-bottom: 25px;
            font-weight: 500;
        }

        .tag-id {
            font-size: 14px;
            color: #6c757d;
            margin-bottom: 20px;
            word-break: break-all;
        }

        .tag-id a {
            color: var(--primary-color);
            text-decoration: none;
        }

        .qr-code-container {
            margin-top: 20px;
            padding: 10px;
            background-color: white;
            border-radius: 8px;
            display: inline-block;
        }

        .qr-code {
            width: 120px;
            height: 120px;
        }

        @keyframes swing {
            0%, 100% {
                transform: rotate(-3deg);
            }
            50% {
                transform: rotate(3deg);
            }
        }

        .swinging {
            animation: swing 3s ease-in-out infinite;
        }

        .controls {
            display: flex;
            gap: 10px;
            margin-top: 20px;
            justify-content: center;
        }

        .theme-toggle {
            position: fixed;
            top: 20px;
            right: 20px;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-color);
            cursor: pointer;
        }

        @media (max-width: 992px) {
            .app-container {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 576px) {
            .name-tag {
                width: 100%;
                padding: 20px;
            }
            
            .first-name {
                font-size: 24px;
            }
            
            .last-name {
                font-size: 20px;
            }
            
            .position {
                font-size: 16px;
            }
        }