/* Modern Variables */
:root {
    --primary-color: #3a86ff;
    --secondary-color: #8338ec;
    --accent-color: #ff006e;
    --success-color: #00b894;
    --danger-color: #ff7675;
    --text-color: #2d3436;
    --bg-light: #f8f9fa;
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-hover: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    --success-rgb: 40, 167, 69;
    --danger-rgb: 220, 53, 69;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(45deg, rgba(58, 134, 255, 0.05) 0%, rgba(131, 56, 236, 0.05) 100%);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

/* Modern Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.9) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95) !important;
    box-shadow: var(--shadow-md);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.8rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

/* Sidebar */
.sidebar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-right: 1px solid rgba(255, 255, 255, 0.2);
    padding: 2rem;
    height: calc(100vh - 70px);
    position: sticky;
    top: 70px;
    overflow-y: auto;
    box-shadow: var(--shadow-sm);
}

.tools-container h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

/* Modern Tool Items */
.tool-item {
    cursor: grab;
    padding: 1.2rem;
    margin-bottom: 1rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    user-select: none;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    overflow: hidden;
}

.tool-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-hover);
    opacity: 0;
    transition: var(--transition);
    z-index: 0;
}

.tool-item.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

.tool-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.tool-item:hover::before {
    opacity: 1;
}

.tool-item i {
    margin-right: 1rem;
    font-size: 1.4rem;
    transition: var(--transition);
    color: var(--primary-color);
    position: relative;
    z-index: 1;
}

.tool-item span {
    font-weight: 500;
    color: var(--text-color);
    transition: var(--transition);
    position: relative;
    z-index: 1;
}

.tool-item:hover i,
.tool-item:hover span {
    color: white;
}

/* Main Content Area */
.main-content {
    padding: 2rem;
}

.test-builder {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    overflow: hidden;
}

.test-header {
    padding: 2rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    background: rgba(255, 255, 255, 0.8);
}

#test-title {
    font-size: 1.8rem;
    font-weight: 600;
    border: none;
    background: transparent;
    width: 100%;
    letter-spacing: -0.5px;
    transition: var(--transition);
    border-radius: var(--border-radius);
    padding: 0.5rem 1rem;
}

#test-title:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: var(--shadow-sm);
}

.test-settings {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.btn i {
    font-size: 1.1rem;
}

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background: var(--gradient-hover);
}

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

.btn-outline-primary:hover {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

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

.btn-outline-danger:hover {
    background: var(--danger-color);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* Question Blocks */
.question-block {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin: 1.5rem;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.question-block:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.question-block .handle {
    cursor: grab;
    padding: 1rem;
    margin: -1.5rem -1.5rem 1rem -1.5rem;
    background: rgba(0, 0, 0, 0.02);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.question-block .handle span {
    font-weight: 500;
    color: var(--text-color);
}

.question-block .handle i {
    color: var(--primary-color);
    margin-right: 0.5rem;
}

/* Form Controls */
.form-control {
    padding: 1rem;
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.9);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(58, 134, 255, 0.1);
    outline: none;
}

/* Options */
.option-wrapper {
    position: relative;
    margin-bottom: 1rem;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.input-group {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: stretch;
}

.input-group .input-group-text {
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-right: none;
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.input-group .input-group-text.correct-answer-toggle {
    background: rgba(0, 0, 0, 0.02);
}

.input-group .input-group-text.correct-answer-toggle:hover {
    background: rgba(var(--success-rgb), 0.1);
}

.input-group .input-group-text.correct-answer-toggle.active {
    background: var(--success-color);
    border-color: var(--success-color);
}

.input-group .input-group-text.correct-answer-toggle.active input {
    border-color: white;
    background-color: white;
}

.input-group .form-check-input {
    cursor: pointer;
    width: 1.2em;
    height: 1.2em;
    margin: 0;
    transition: var(--transition);
}

.input-group .form-check-input:checked {
    background-color: var(--success-color);
    border-color: var(--success-color);
}

.input-group .correct-answer-toggle.active .form-check-input {
    background-color: white;
    border-color: white;
}

.input-group .correct-answer-toggle.active .form-check-input:checked {
    background-color: var(--success-color);
}

/* Remove old button styles that are no longer needed */
.input-group .btn-outline-success {
    display: none;
}

/* Анимации для чекбоксов и радиокнопок */
.form-check-input {
    transition: transform 0.2s ease;
}

.form-check-input:hover {
    transform: scale(1.1);
}

.form-check-input:checked {
    animation: checkmark 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes checkmark {
    0% { transform: scale(0.8); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

/* Modals */
.modal-content {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
}

.modal-header {
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
}

/* Toast Messages */
.toast-message {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    background: white;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 1100;
    animation: toastSlide 0.3s ease forwards;
    border-left: 4px solid;
}

.toast-message i {
    font-size: 1.2rem;
}

.toast-success {
    border-left-color: var(--success-color);
}

.toast-success i {
    color: var(--success-color);
}

.toast-error {
    border-left-color: var(--danger-color);
}

.toast-error i {
    color: var(--danger-color);
}

.toast-info {
    border-left-color: var(--primary-color);
}

.toast-info i {
    color: var(--primary-color);
}

@keyframes toastSlide {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Utility Classes */
.text-center { text-align: center; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }

/* Modern Mobile Warning */
.mobile-warning {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    z-index: 1100;
}

.mobile-warning .alert {
    max-width: 400px;
    width: 90%;
    text-align: center;
    background: white;
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: 2rem;
}

.mobile-warning i {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

/* Modern Drag & Drop */
.dragover {
    border: 2px dashed var(--primary-color);
    background: rgba(52, 87, 213, 0.05);
    animation: dragPulse 1.5s infinite;
}

@keyframes dragPulse {
    0% { box-shadow: 0 0 0 0 rgba(52, 87, 213, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(52, 87, 213, 0); }
    100% { box-shadow: 0 0 0 0 rgba(52, 87, 213, 0); }
}

/* Modern Export Area */
#exportResult {
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    background: #2d3436;
    color: #00ff41;
    border: none;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    line-height: 1.5;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Modern Toast Notifications */
.toast-message {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 1rem 2rem;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.2s ease;
}

.toast-info {
    border-color: var(--primary-color);
    background: rgba(0, 123, 255, 0.1);
}

.toast-error {
    border-color: var(--danger-color);
    background: rgba(220, 53, 69, 0.1);
}

/* Export Modal Styles */
.sharing-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 1rem;
}

.sharing-option {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 15px;
    padding: 1.5rem;
    border: 1px solid rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.sharing-option:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.sharing-option-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.sharing-option-header i {
    font-size: 2rem;
}

.sharing-option-header h6 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0;
}

.sharing-features {
    display: grid;
    gap: 0.5rem;
    margin: 1.5rem 0;
}

.feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.feature i {
    font-size: 1rem;
}

.coming-soon {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #6c757d;
    font-size: 0.9rem;
    width: 100%;
    justify-content: center;
}

/* Improve existing styles */
.modal-content {
    border: none;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.modal-header {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border: none;
    padding: 1.5rem;
}

.modal-header .modal-title {
    color: white;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-header .btn-close {
    filter: brightness(0) invert(1);
    opacity: 0.8;
}

.modal-body {
    padding: 2rem;
}

.modal-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    padding: 1rem 2rem;
}

.btn-outline-primary {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

/* Add animation for the sharing options */
.sharing-option {
    animation: fadeInUp 0.5s ease-out forwards;
    opacity: 0;
}

.sharing-option:nth-child(1) {
    animation-delay: 0.1s;
}

.sharing-option:nth-child(2) {
    animation-delay: 0.2s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Improve input group styles */
.input-group {
    border-radius: 12px;
    overflow: hidden;
}

.input-group .form-control {
    border-right: none;
    padding: 0.75rem 1rem;
}

.input-group .btn {
    border-left: none;
    padding: 0.75rem 1.5rem;
}

.input-group .btn:hover {
    background: var(--primary-color);
    color: white;
}

/* Add hover effect for download button */
#downloadHtml {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

#downloadHtml:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

#downloadHtml::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity 0.3s ease;
}

#downloadHtml:hover::before {
    opacity: 1;
}

#downloadHtml i,
#downloadHtml span {
    position: relative;
    z-index: 1;
}

/* Responsive design improvements */
@media (max-width: 768px) {
    .sharing-options {
        grid-template-columns: 1fr;
    }

    .modal-dialog {
        margin: 1rem;
    }

    .modal-body {
        padding: 1.5rem;
    }

    .sharing-option {
        padding: 1.25rem;
    }
}

.grading-criteria {
    background: rgba(var(--primary-rgb), 0.05);
    border-radius: 10px;
    padding: 1rem;
    margin-top: 0.5rem;
}

.grading-criteria .input-group {
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    border-radius: 8px;
    overflow: hidden;
}

.grading-criteria .input-group-text {
    min-width: 120px;
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.grading-criteria .input-group-text:first-child {
    font-weight: 500;
    color: var(--primary-color);
}

.grading-criteria input[type="number"] {
    text-align: center;
    font-weight: 500;
}

.grading-criteria input[type="number"]:disabled {
    background: #f8f9fa;
    color: #6c757d;
}

/* Additional styles for settings modal */
.modal-body .form-group:not(:last-child) {
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    padding-bottom: 1rem;
}

.modal-body label {
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.form-switch .form-check-input:focus {
    border-color: rgba(var(--primary-rgb), 0.25);
    box-shadow: 0 0 0 0.25rem rgba(var(--primary-rgb), 0.25);
}

/* Toast styles */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1060;
}

.toast {
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border: none;
    margin-bottom: 10px;
}

.toast.success {
    border-left: 4px solid #28a745;
}

.toast.error {
    border-left: 4px solid #dc3545;
}

.toast.info {
    border-left: 4px solid var(--primary-color);
}

/* Command Palette Styles */
.command-palette {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    width: 600px;
    max-width: 90vw;
    background: rgba(255, 255, 255, 0.98);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 1100;
    display: none;
}

.command-palette.active {
    display: block;
    animation: fadeInScale 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.command-input-wrapper {
    display: flex;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.command-prefix {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--primary-color);
    margin-right: 0.5rem;
}

.command-input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 1.1rem;
    padding: 0.5rem;
    color: var(--text-color);
}

.command-input:focus {
    outline: none;
}

.command-suggestions {
    max-height: 300px;
    overflow-y: auto;
    padding: 0.5rem;
}

.command-suggestion {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    margin: 0.25rem 0.5rem;
    border: 1px solid transparent;
}

.command-suggestion:hover,
.command-suggestion.selected {
    background: rgba(var(--primary-rgb), 0.1);
    border-color: rgba(var(--primary-rgb), 0.2);
    transform: translateX(0.25rem);
}

.command-suggestion i {
    font-size: 1.2rem;
    color: var(--primary-color);
    width: 24px;
    text-align: center;
    transition: var(--transition);
}

.command-suggestion:hover i,
.command-suggestion.selected i {
    transform: scale(1.1);
}

.command-suggestion-content {
    flex: 1;
}

.command-suggestion-title {
    font-weight: 500;
    margin-bottom: 0.25rem;
    color: var(--text-color);
}

.command-suggestion-description {
    font-size: 0.85rem;
    color: #6c757d;
}

.command-shortcut {
    color: #6c757d;
    font-size: 0.85rem;
    font-family: 'Fira Code', monospace;
    padding: 0.2rem 0.5rem;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
    transition: var(--transition);
}

.command-suggestion:hover .command-shortcut,
.command-suggestion.selected .command-shortcut {
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary-color);
}

/* Command Overlay */
.command-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    z-index: 1090;
    display: none;
}

.command-overlay.active {
    display: block;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Command Palette Button Styles */
#commandPaletteBtn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    margin: 0 0.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    color: var(--text-color);
}

#commandPaletteBtn:hover {
    background: rgba(var(--primary-rgb), 0.1);
}

.command-shortcut-hint {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 4px;
    font-size: 0.75rem;
    font-weight: 500;
    color: #6c757d;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
    font-family: 'Fira Code', monospace;
}

@media (max-width: 768px) {
    #commandPaletteBtn {
        width: 100%;
        justify-content: flex-start;
        margin: 0.5rem 0;
    }
}

/* Command Category Styles */
.command-category {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--primary-color);
    padding: 0.75rem 1rem 0.5rem;
    margin-top: 0.5rem;
    border-bottom: 1px solid rgba(var(--primary-rgb), 0.1);
    letter-spacing: 0.5px;
}

.command-category:first-child {
    margin-top: 0;
}

/* Preview Styles */
.test-preview {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    margin: 2rem 0;
}

/* Theme Selector Modal */
.theme-selector-modal,
.theme-preview-modal,
.theme-customize-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1200;
    backdrop-filter: blur(5px);
    animation: fadeIn 0.2s ease;
}

.theme-selector-content,
.theme-preview-content,
.theme-customize-content {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

.theme-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.theme-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    box-shadow: var(--shadow-sm);
}

.theme-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.theme-card.selected {
    border-color: var(--primary-color);
    background: rgba(var(--primary-rgb), 0.05);
}

.theme-preview {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.color-preview {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.color-preview.primary {
    background: var(--theme-primary);
}

.color-preview.secondary {
    background: var(--theme-secondary);
}

.color-preview.accent {
    background: var(--theme-accent);
}

.theme-info h4 {
    margin: 0 0 0.5rem;
    font-size: 1.1rem;
}

.theme-info p {
    margin: 0;
    font-size: 0.9rem;
    color: #6c757d;
}

.theme-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 2rem;
}

/* Theme Preview Styles */
.theme-preview-elements {
    margin: 2rem 0;
}

.preview-section {
    margin-bottom: 2rem;
}

.preview-section h4 {
    margin-bottom: 1rem;
}

.color-samples {
    display: flex;
    gap: 1rem;
}

.color-sample {
    padding: 1rem;
    border-radius: var(--border-radius);
    color: white;
    text-align: center;
    flex: 1;
}

/* Theme Customize Styles */
.color-inputs {
    display: grid;
    gap: 1.5rem;
    margin: 2rem 0;
}

.color-input-group {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.color-input-group label {
    min-width: 150px;
    font-weight: 500;
}

.color-input-group input[type="color"] {
    width: 50px;
    height: 50px;
    padding: 0;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
}

.theme-customize-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 2rem;
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Drag and Drop Styles */
.option-wrapper {
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.option-wrapper.dragging {
    opacity: 0.5;
    transform: scale(0.98);
}

.drag-handle {
    cursor: grab;
    color: #6c757d;
    padding: 0.5rem !important;
    background: rgba(0, 0, 0, 0.02) !important;
}

.drag-handle:hover {
    color: var(--primary-color);
}

.drag-handle i {
    transition: transform 0.2s ease;
}

.option-wrapper:hover .drag-handle i {
    transform: scale(1.1);
}

/* Option Actions */
.option-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

/* Animations */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideOutFade {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(20px);
    }
}

/* Bulk Add Modal */
.modal-content {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

.modal-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
}

.modal-header .btn-close {
    filter: brightness(0) invert(1);
    opacity: 0.8;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    padding: 1rem 1.5rem;
}

.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

textarea.form-control {
    min-height: 120px;
    font-family: 'Inter', sans-serif;
    resize: vertical;
}

/* Enhanced Input Groups */
.input-group {
    position: relative;
    overflow: visible;
}

.input-group:hover .drag-handle,
.input-group:hover .correct-answer-toggle,
.input-group:hover .btn-outline-danger {
    opacity: 1;
}

.input-group .drag-handle,
.input-group .correct-answer-toggle,
.input-group .btn-outline-danger {
    opacity: 0.6;
    transition: opacity 0.2s ease;
}

.input-group .form-control:focus ~ .drag-handle,
.input-group .form-control:focus ~ .correct-answer-toggle,
.input-group .form-control:focus ~ .btn-outline-danger {
    opacity: 1;
}

/* Option wrapper hover effects */
.option-wrapper:hover {
    z-index: 1;
}

.option-wrapper:hover .input-group {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}