/**
 * Tabs Module Styling
 * Styles for tabbed interface modules (e.g., AI Intelligence)
 */

.quiz-editor-footer{
    gap:10px;
    display:flex;
    justify-content:flex-end;
    padding-top:10px;
}

.module-tabs-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 100%;
}

/* Tabs Header */
.tabs-header {
    display: flex;
    gap: 5px;
    padding: 10px 20px 0 20px;
    background: var(--bg-main);
    border-bottom: 2px solid var(--border-color);
    overflow-x: auto;
    overflow-y: hidden;
    flex-shrink: 0;
}

.tabs-header::-webkit-scrollbar {
    height: 6px;
}

.tabs-header::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 3px;
}

/* Tab Buttons */
.tab-button {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    position: relative;
}

.tab-button:hover {
    color: var(--accent);
    background: var(--bg-lighter);
}

.tab-button.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.tab-button i {
    font-size: 1.1rem;
}

/* Tabs Content */
.tabs-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.module-tabs-container .tabs-content{
}

.tabs-content .tabs-content{
    padding:0;
    padding-top:20px;
}

/* Tab Panes */
.tab-pane {
    display: none !important;
    animation: fadeIn 0.3s ease;
}

.tab-pane.active {
    display: block !important;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Tab Loading State */
.tab-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--text-muted);
    font-size: 1.1rem;
}

.tab-loading i {
    margin-right: 10px;
    color: var(--accent);
}

/* Chat Interface (for chat type tabs) */
.chat-interface {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 300px);
    background: var(--bg-lighter);
    border-radius: 12px;
    overflow: hidden;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.chat-input-area {
    padding: 15px;
    background: var(--bg-main);
    border-top: 1px solid var(--border-color);
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
    align-items: end;
}

.chat-input-area textarea {
    flex: 1;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-lighter);
    color: var(--text-main);
    font-family: inherit;
    resize: none;
    font-size: 16px;
    min-height: 100px;
}

.chat-input-area button {
    flex-shrink: 0;
}

.chat-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-self: stretch;
}

.chat-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    border-radius: 12px;
    padding: 10px 16px;
}

@media (max-width: 640px) {
    .chat-interface {
        height: calc(100vh - 240px);
    }
    .chat-action-btn {
        width: 44px;
        height: 44px;
        padding: 0;
        border-radius: 9999px;
    }
    .chat-action-btn .btn-label {
        display: none;
    }
    .chat-action-btn i {
        margin: 0;
        font-size: 1rem;
    }
}
/* Chat Messages */
.chat-message {
    padding: 10px 12px;
    border-radius: 12px;
    max-width: 80%;
    animation: slideIn 0.2s ease;
}

.chat-message-user {
    align-self: flex-end;
    background: var(--accent);
    color: var(--text-secondary);
}

.chat-message-assistant {
    align-self: flex-start;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
}

.chat-message-system {
    align-self: center;
    background: var(--bg-lighter);
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-muted);
    text-align: center;
}

.message-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    font-size: 10px;
    opacity: 0.8;
}

.message-role {
    font-weight: 600;
}

.message-time {
    font-size: 0.75rem;
    opacity: 0.7;
}

.message-content {
    line-height: 1.45;
    white-space: normal;
    word-wrap: break-word;
}
.message-content p {
    margin: 0.4rem 0;
}
.message-content ul,
.message-content ol {
    margin: 0.5rem 0;
    padding-left: 1.1rem;
}
.message-content li {
    margin: 0.25rem 0;
}
.message-content > *:first-child {
    margin-top: 0 !important;
}
.message-content > *:last-child {
    margin-bottom: 0 !important;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Form Container (for form type tabs) */
.form-container {
    max-width: 800px;
    margin: 0 auto;
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

/* Q&A Manager (for qa_manager type tabs) */
.qa-manager {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.qa-toolbar {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 15px;
    background: var(--bg-lighter);
    border-radius: 12px;
}

.qa-search {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-main);
    color: var(--text-main);
}

.qa-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.qa-item {
    padding: 15px;
    background: var(--bg-lighter);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.qa-item:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.qa-question {
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 8px;
}

.qa-answer {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.qa-actions {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
}

.btn-icon {
    background: transparent;
    border: none;
    padding: 6px 10px;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s ease;
    color: var(--text-muted);
}

.btn-icon:hover {
    background: var(--bg-lighter);
    color: var(--accent);
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    animation: fadeIn 0.2s ease;
}

.modal-dialog {
    background: var(--bg-main);
    border-radius: 12px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

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

.modal-header h3 {
    margin: 0;
    color: var(--text-main);
}

.btn-close {
    background: transparent;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--text-muted);
    padding: 4px 8px;
    border-radius: 4px;
}

.btn-close:hover {
    background: var(--bg-lighter);
    color: var(--text-main);
}



.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: var(--text-main);
}

.form-group textarea,
.form-group input[type="text"] {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-lighter);
    color: var(--text-main);
    font-family: inherit;
    resize: vertical;
}

.modal-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

/* Error Messages */
.error-message {
    padding: 20px;
    background: var(--bg-lighter);
    border: 1px solid var(--color-danger, #ff4757);
    border-radius: 12px;
    color: var(--color-danger, #ff4757);
    text-align: center;
}

/* ============================================
   KNOWLEDGE BASE MANAGER
   ============================================ */

/* KB Main Container */
.kb-manager {
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: 15px;
}

/* KB Header with Actions */
.kb-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--bg-lighter);
    border-radius: 12px;
    flex-wrap: wrap;
}

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

.kb-search {
    position: relative;
    flex: 1;
    min-width: 250px;
}

.kb-search input {
    width: 100%;
    padding: 10px 40px 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 26px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 16px;
}

.kb-search i {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

/* KB Content Area */
.kb-content {
    display: flex;
    gap: 20px;
    flex: 1;
    overflow: hidden;
}

/* KB Sidebar */
.kb-sidebar {
    width: 300px;
    max-height: calc(100vh - 300px);
    background: var(--bg-lighter);
    border-radius: 12px;
    padding: 15px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}

.kb-sidebar h4 {
    margin: 0 0 15px 0;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    flex-shrink: 0;
}

.kb-questions-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    overflow-y: auto;
    overflow-x: hidden;
    flex: 1;
    padding-right: 5px;
}

.kb-questions-list::-webkit-scrollbar {
    width: 6px;
}

.kb-questions-list::-webkit-scrollbar-track {
    background: var(--bg-main);
    border-radius: 3px;
}

.kb-questions-list::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 3px;
}

.kb-questions-list::-webkit-scrollbar-thumb:hover {
    background: var(--accent-hover, var(--accent));
}

.kb-question-item {
    padding: 12px;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.kb-question-item:hover {
    border-color: var(--accent);
    background: var(--bg-lighter);
    transform: translateX(5px);
}

.kb-question-text {
    font-size: 0.9rem;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 8px;
}

.kb-question-meta {
    display: flex;
    gap: 8px;
    align-items: center;
}

.kb-category {
    padding: 3px 8px;
    background: var(--accent);
    color: var(--text-secondary);
    font-size: 11px;
    border-radius: 16px;
    font-weight: 600;
}

.kb-loading, .kb-no-questions, .kb-error {
    padding: 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* KB Main Workspace */
.kb-main {
    flex: 1;
    background: var(--bg-lighter);
    border-radius: 12px;
    padding: 20px;
    overflow-y: auto;
}

.kb-workspace {
    height: 100%;
}

/* Empty State */
.kb-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    text-align: center;
}

.kb-empty-state i {
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0.5;
}

.kb-empty-state p {
    font-size: 0.95rem;
    max-width: 400px;
}

/* Generating State */
.kb-generating {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
}

.kb-generating .spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

.kb-generating h3 {
    margin: 0 0 10px 0;
    color: var(--text-primary);
}

.kb-generating p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Generated Results */
.kb-generated-results {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.kb-generated-results h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 10px 0;
    color: var(--text-primary);
}

.kb-generated-results h3 i {
    color: var(--success-text);
}

.kb-generated-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.kb-generated-item {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
}

.kb-gen-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.kb-gen-header strong {
    color: var(--text-primary);
}

.kb-gen-category {
  padding: 3px 8px;
    background: transparent;
    color: var(--accent);
    font-size: 0.75rem;
    border-radius: 4px;
}

.kb-gen-question {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.kb-gen-answer {
    margin-bottom: 15px;
}

.kb-gen-answer strong {
    display: block;
    margin-bottom: 5px;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.kb-gen-answer p {
    color: var(--text-main);
    line-height: 1.6;
    margin: 0;
    font-size: 15px;
}

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

.kb-gen-footer {
    display: flex;
    justify-content: center;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
}

/* Refine Chat Interface */
.kb-refine-chat {
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: 15px;
}

.kb-refine-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.kb-refine-header h3 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.1rem;
    flex: 1;
}

.kb-refine-messages {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding: 10px;
}

/* KB Messages */
.kb-message {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 15px;
    border-radius: 12px;
    max-width: 85%;
}

.kb-message-user {
    align-self: flex-end;
    background: var(--accent);
    color: white;
}

.kb-message-ai {
    align-self: flex-start;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
}

.kb-message-error {
    align-self: center;
    background: var(--color-danger, #ff4757);
    color: white;
    padding: 10px 15px;
    border-radius: 8px;
    font-size: 0.9rem;
}

.kb-message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    opacity: 0.8;
}

.kb-message-role {
    font-weight: 600;
}

.kb-message-content {
    line-height: 1.6;
    font-size: 0.95rem;
}

.kb-edit-textarea {
    width: 100%;
    min-height: 100px;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    line-height: 1.6;
    resize: vertical;
    transition: border-color 0.2s ease;
    min-width: 33vw;
    max-width: -webkit-fill-available;
    min-height: 200px;
}

.kb-edit-textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.kb-message-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

/* Button styles for KB Manager */
.kb-message-actions .btn,
.kb-gen-actions .btn,
.kb-refine-input .btn {
    padding: 6px 12px;
    font-size: 0.85rem;
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
    background: var(--bg-main);
    color: var(--text-primary);
    font-weight: 500;
}

.kb-message-actions .btn-sm,
.kb-gen-actions .btn-sm {
    padding: 5px 10px;
    font-size: 0.8rem;
}

.kb-message-actions .btn-outline-primary,
.kb-gen-actions .btn-outline-primary {
    border-color: var(--accent);
    color: var(--accent);
}

.kb-message-actions .btn-outline-primary:hover,
.kb-gen-actions .btn-outline-primary:hover {
    background: var(--accent);
    color: var(--text-secondary);
}

.kb-message-actions .btn-outline-danger,
.kb-gen-actions .btn-outline-danger {
    border-color: var(--color-danger, #ff4757);
    color: var(--color-danger, #ff4757);
}

.kb-message-actions .btn-outline-danger:hover,
.kb-gen-actions .btn-outline-danger:hover {
    background: var(--color-danger, #ff4757);
    color: white;
}

.kb-message-actions .btn-success,
.kb-gen-actions .btn-success {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--text-secondary);
}

.kb-message-actions .btn-success:hover,
.kb-gen-actions .btn-success:hover {
    opacity: 0.9;
}

.kb-message-actions .btn-primary,
.kb-gen-actions .btn-primary,
.kb-refine-input .btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--text-secondary);
}

.kb-message-actions .btn-primary:hover,
.kb-gen-actions .btn-primary:hover,
.kb-refine-input .btn-primary:hover {
    opacity: 0.9;
}

.kb-message-actions .btn-danger,
.kb-gen-actions .btn-danger {
    background: var(--danger);
    border-color: var(--danger);
    color: #fff;
}

.kb-message-actions .btn-danger:hover,
.kb-gen-actions .btn-danger:hover {
    opacity: 0.9;
}

.kb-message-actions .btn i,
.kb-gen-actions .btn i,
.kb-refine-input .btn i {
    margin-right: 5px;
}

/* Legacy btn-icon support */
.kb-message-actions .btn-icon {
    padding: 5px 10px;
    font-size: 0.85rem;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.kb-message-actions .btn-icon:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.kb-message-actions .btn-icon i {
    margin-right: 5px;
}

/* Loading Message */
.kb-message.kb-loading {
    align-self: flex-start;
    background: var(--bg-lighter);
    border: 1px solid var(--border-color);
    flex-direction: row;
    align-items: center;
    gap: 10px;
}

.spinner-small {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Refine Input Area */
.kb-refine-input {
    display: flex;
    gap: 10px;
    padding: 15px;
    background: var(--bg-main);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.kb-refine-input textarea {
    flex: 1;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-lighter);
    color: var(--text-primary);
    font-size: 0.95rem;
    resize: vertical;
    font-family: inherit;
}

.kb-refine-input textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.kb-refine-footer {
    padding-top: 10px;
    text-align: center;
}

.kb-refine-footer small {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.kb-refine-footer i {
    margin-right: 5px;
}

/* Toast notifications now handled by Notifier.js centralized system */

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Error State */
.kb-error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--color-danger, #ff4757);
    text-align: center;
}

.kb-error-state i {
    font-size: 3rem;
    margin-bottom: 15px;
}

.kb-error-state h3 {
    margin: 0 0 10px 0;
}

.kb-error-state p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 768px) {
    .tabs-header {
        padding: 10px 10px 0 10px;
    }

    .tab-button {
        padding: 10px 15px;
        font-size: 0.9rem;
    }

    .tabs-content {
        padding: 0;
        margin-top: 15px;
    }

    .chat-interface {
        height: calc(100vh - 200px);
    }

    /* KB Responsive */
    .kb-manager {
        gap: 10px;
    }

    .kb-header {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        padding: 10px;
    }

    .kb-actions {
        flex-direction: column;
        gap: 8px;
    }

    .kb-search {
        min-width: 100%;
    }

    .kb-content {
        flex-direction: column;
        gap: 15px;
    }

    .kb-sidebar {
        width: 100%;
        max-height: 250px;
        order: 2;
    }

    .kb-sidebar h4 {
        font-size: 0.95rem;
        margin-bottom: 10px;
    }

    .kb-main {
        order: 1;
        min-height: 400px;
    }

    .kb-message {
        max-width: 95%;
        padding: 12px;
    }

    .kb-message-actions {
        flex-direction: column;
        gap: 6px;
    }

    .kb-message-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .kb-refine-input {
        flex-direction: column;
        padding: 10px;
    }

    .kb-refine-input textarea {
        width: 100%;
        min-height: 80px;
    }

    .kb-refine-input .btn {
        width: 100%;
    }

    .kb-gen-actions {
        flex-direction: column;
        gap: 6px;
    }

    .kb-gen-actions .btn {
        width: 100%;
    }

    .kb-generated-item {
        padding: 12px;
    }

    .kb-gen-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}

/* Extra small devices (phones, less than 576px) */
@media (max-width: 576px) {
    .kb-header {
        padding: 8px;
    }

    .kb-sidebar {
        max-height: 200px;
    }

    .kb-question-item {
        padding: 10px;
    }

    .kb-question-text {
        font-size: 0.85rem;
    }

    .kb-category {
        font-size: 0.7rem;
        padding: 2px 6px;
    }

    .kb-message {
        padding: 10px;
        font-size: 0.9rem;
    }

    .kb-message-header {
        font-size: 0.8rem;
    }

    .kb-refine-messages {
        gap: 10px;
    }
}

/* =====================================================
   QUIZ FLOW EDITOR - Visual SVG Graph Editor
   ===================================================== */

.quiz-flow-editor {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background: var(--bg-secondary);
}

/* Toolbar */
.flow-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--bg-main);
    border-bottom: 1px solid var(--border-color);
    gap: 1rem;
    flex-wrap: wrap;
}

.flow-toolbar-left,
.flow-toolbar-center,
.flow-toolbar-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.flow-zoom-level {
    min-width: 50px;
    text-align: center;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

/* Main Content Split View */
.flow-main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* SVG Canvas Container */
.flow-canvas-container {
    flex: 1;
    position: relative;
    background: #0f172a;
    overflow: hidden;
}

.flow-svg-canvas {
    width: 100%;
    height: 100%;
    cursor: grab;
}

.flow-svg-canvas:active {
    cursor: grabbing;
}

/* Flow Nodes */
.flow-node {
    cursor: move;
    transition: filter 0.2s ease;
}

.flow-node:hover {
    filter: brightness(1.2);
}

.flow-node-bg {
    transition: all 0.2s ease;
}

.flow-node:hover .flow-node-bg {
    filter: drop-shadow(0 0 8px rgba(59, 130, 246, 0.5));
}

/* Connections */
.flow-connection {
    transition: all 0.2s ease;
    opacity: 0.6;
}

.flow-connection:hover {
    opacity: 1;
    stroke-width: 3;
}

.flow-connection-label {
    font-family: var(--font-mono);
    pointer-events: none;
}

/* Minimap */
.flow-minimap {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem;
    backdrop-filter: blur(8px);
}

#flow-minimap-canvas {
    display: block;
    border-radius: 4px;
}

/* Editor Panel (Right Sidebar) */
.flow-editor-panel {
    width: 400px;
    background: var(--bg-main);
    border-left: 1px solid var(--border-color);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.flow-panel-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

/* Step Editor */
.flow-step-editor {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.flow-step-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.flow-step-header h3 {
    margin: 0;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.flow-form-group {
    margin-bottom: 1rem;
}

.flow-form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.flow-form-group input,
.flow-form-group select,
.flow-form-group textarea {
    width: 100%;
    padding: 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.flow-form-group textarea {
    resize: vertical;
    font-family: inherit;
}

.flow-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.flow-checkbox input[type="checkbox"] {
    width: auto;
}

.flow-checkbox label {
    margin: 0;
    font-weight: normal;
    cursor: pointer;
}

/* Sections */
.flow-section {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.flow-section h4 {
    margin: 0 0 1rem 0;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
}

/* Audio Actions */
.flow-audio-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Question Options List */
.flow-options-list,
.flow-fields-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.flow-option-item,
.flow-field-item {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.flow-option-item input,
.flow-field-item input,
.flow-field-item select {
    flex: 1;
}

.delete-option,
.delete-field {
    flex-shrink: 0;
}

/* Panel Footer */
.flow-panel-footer {
    margin-top: auto;
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.flow-panel-footer .btn {
    width: 100%;
}

/* Status Bar */
.flow-status-bar {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-main);
    border-top: 1px solid var(--border-color);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.flow-status-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.flow-status-item i {
    color: var(--accent);
}

.flow-status-item span {
    font-weight: 600;
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 1200px) {
    .flow-editor-panel {
        width: 350px;
    }
}

@media (max-width: 768px) {
    .flow-main-content {
        flex-direction: column;
    }

    .flow-editor-panel {
        width: 100%;
        max-height: 50vh;
    }

    .flow-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .flow-toolbar-left,
    .flow-toolbar-center,
    .flow-toolbar-right {
        justify-content: center;
    }
}

/* ===========================================
   QUIZ LIST INTERFACE
   =========================================== */

.quiz-list-container {
    padding: 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.quiz-list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.quiz-list-header h2 {
    margin: 0;
    font-size: 28px;
    color: var(--text-primary);
}

.quiz-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.quiz-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.quiz-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

.quiz-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 15px;
}

.quiz-card-header h3 {
    margin: 0;
    font-size: 18px;
    color: var(--text-primary);
    flex: 1;
    padding-right: 10px;
}

.quiz-card-header .badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

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

.badge-secondary {
    color: var(--accent);
}

.quiz-card-body {
    margin-bottom: 20px;
}

.quiz-card-body p {
    margin: 0 0 15px 0;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

.quiz-stats {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.quiz-stats span {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}

.quiz-stats span i {
    color: var(--primary-color);
}

.quiz-card-actions {
    display: flex;
    gap: 10px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.quiz-card-actions .btn {
    flex: 1;
    justify-content: center;
}

.empty-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    text-align: center;
}

.empty-state i {
    color: var(--text-tertiary);
    margin-bottom: 20px;
}

.empty-state p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.loading-state,
.error-state {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    font-size: 16px;
}

.error-state {
    color: var(--danger-color);
    flex-direction: column;
    gap: 15px;
}

/* Responsive adjustments for quiz list */
@media (max-width: 768px) {
    .quiz-list-header {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
    }

    .quiz-list-grid {
        grid-template-columns: 1fr;
    }

    .quiz-card-actions {
        flex-direction: column;
    }
}