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

        :root {
            --bg-dark: #121212;
            --bg-darker: #0a0a0a;
            --bg-panel: #1e1e1e;
            --accent: #6c63ff;
            --accent-hover: #7d75ff;
            --text-primary: #f0f0f0;
            --text-secondary: #b0b0b0;
            --border: #333;
            --success: #4caf50;
            --danger: #f44336;
            --warning: #ff9800;
            --code-bg: #2d2d2d;
        }

        body {
            background: linear-gradient(135deg, var(--bg-dark), var(--bg-darker));
            color: var(--text-primary);
            min-height: 100vh;
            padding: 20px;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
            flex-direction: column;
            gap: 25px;
            display: flex;
        }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .logo-icon {
            background: var(--accent);
            width: 45px;
            height: 45px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
        }

        h1 {
            font-size: 2.5rem;
            background: linear-gradient(to right, var(--accent), var(--warning));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 800;
        }

        .tagline {
            color: var(--text-secondary);
            font-size: 1.1rem;
            margin-top: 5px;
        }

        .controls {
            display: flex;
            gap: 15px;
        }

        .btn {
            padding: 12px 25px;
            border-radius: 8px;
            border: none;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: all 0.3s ease;
            font-size: 16px;
        }

        .btn-primary {
            background: var(--accent);
            color: white;
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(108, 99, 255, 0.3);
        }

        .btn-secondary {
            background: transparent;
            border: 2px solid var(--accent);
            color: var(--accent);
        }

        .btn-secondary:hover {
            background: rgba(108, 99, 255, 0.1);
        }

        .btn-success {
            background: var(--success);
            color: white;
        }

        .btn-danger {
            background: var(--danger);
            color: white;
        }

        .main-content {
    display: flex;
    flex-direction: column;
    gap: 25px;
    min-height: 100vh;
}



        @media (max-width: 1100px) {
            .main-content {
                grid-template-columns: 1fr;
                height: auto;
            }
        }

        .panel {
            background: var(--bg-panel);
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
            display: flex;
            flex-direction: column;
        }

        .panel-header {
            padding: 18px 25px;
            background: rgba(0, 0, 0, 0.25);
            border-bottom: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .panel-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            font-size: 1.2rem;
        }

        .panel-title i {
            color: var(--accent);
        }

        .panel-actions {
            display: flex;
            gap: 10px;
        }

        .icon-btn {
            background: rgba(255, 255, 255, 0.08);
            width: 36px;
            height: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s;
        }

        .icon-btn:hover {
            background: rgba(108, 99, 255, 0.2);
            color: var(--accent);
        }

        .editor-container {
            flex: 1;
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .editor-tabs {
            display: flex;
            gap: 10px;
            border-bottom: 1px solid var(--border);
            padding-bottom: 10px;
        }

        .editor-tab {
            padding: 8px 20px;
            border-radius: 6px;
            cursor: pointer;
            transition: all 0.2s;
            font-weight: 500;
            opacity: 0.7;
        }

        .editor-tab.active {
            background: rgba(108, 99, 255, 0.2);
            color: var(--accent);
            opacity: 1;
        }

        .editor-content {
            display: none;
            width: 100%;
            flex: 1;
            background: var(--code-bg);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 20px;
            color: var(--text-primary);
            font-family: 'Fira Code', monospace;
            font-size: 16px;
            resize: none;
            line-height: 1.5;
        }

        .editor-content.active {
            display: block;
        }

        .editor-content:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 2px rgba(108, 99, 255, 0.2);
        }

        .preview-container {
            background: white;
            flex: 1;
            border-radius: 10px;
            overflow: hidden;
            position: relative;
            height: 100vh;
        }

        .preview-placeholder {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            background: #f0f0f0;
            color: #666;
            z-index: 10;
        }

        .preview-placeholder.hidden {
            display: none;
        }

        iframe {
            width: 100%;
            height: 100vh;
            border: none;
        }

        .features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin-top: 20px;
        }

        .feature-card {
            background: var(--bg-panel);
            padding: 25px;
            border-radius: 15px;
            display: flex;
            gap: 20px;
            transition: transform 0.3s ease;
        }

        .feature-card:hover {
            transform: translateY(-5px);
        }

        .feature-icon {
            background: rgba(108, 99, 255, 0.15);
            width: 60px;
            height: 60px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--accent);
        }

        .feature-content h3 {
            margin-bottom: 10px;
            font-size: 1.3rem;
        }

        .feature-content p {
            color: var(--text-secondary);
        }

        footer {
            text-align: center;
            padding: 30px 0;
            margin-top: 20px;
            color: var(--text-secondary);
            border-top: 1px solid var(--border);
        }

        .modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
        }

        .modal.active {
            opacity: 1;
            visibility: visible;
        }

        .modal-content {
            background: var(--bg-panel);
            width: 90%;
            max-width: 500px;
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 10px 50px rgba(0, 0, 0, 0.5);
            transform: translateY(-20px);
            transition: transform 0.3s;
        }

        .modal.active .modal-content {
            transform: translateY(0);
        }

        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 1px solid var(--border);
        }

        .modal-title {
            font-size: 1.5rem;
            font-weight: 600;
        }

        .modal-close {
            cursor: pointer;
            font-size: 1.5rem;
            transition: color 0.2s;
        }

        .modal-close:hover {
            color: var(--accent);
        }

        .modal-body {
            margin-bottom: 25px;
        }

        .modal-footer {
            display: flex;
            justify-content: flex-end;
            gap: 10px;
        }

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

        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
        }

        input, select {
            width: 100%;
            padding: 12px 15px;
            background: var(--code-bg);
            border: 1px solid var(--border);
            border-radius: 8px;
            color: var(--text-primary);
            font-size: 16px;
        }

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

        .toast {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--bg-panel);
            color: white;
            padding: 15px 25px;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
            display: flex;
            align-items: center;
            gap: 10px;
            transform: translateY(100px);
            opacity: 0;
            transition: all 0.3s;
            z-index: 1000;
        }

        .toast.show {
            transform: translateY(0);
            opacity: 1;
        }

        .toast-success {
            border-left: 4px solid var(--success);
        }

        .toast-error {
            border-left: 4px solid var(--danger);
        }

        /* Responsive adjustments */
        @media (max-width: 768px) {
            header {
                flex-direction: column;
                gap: 20px;
            }
            
            .controls {
                width: 100%;
                justify-content: center;
            }
            
            h1 {
                font-size: 2rem;
            }
            
            .feature-card {
                flex-direction: column;
            }
        }
       .panel {
    width: 100%;
    min-height: 500px; /* You can adjust this */
    display: flex;
    flex-direction: column;
}

.editor-container,
.preview-container {
    flex-grow: 1;
    height: 100%;
    min-height: 700px;
}