/* Brainstorming Board Styles - Following Established Layout Patterns */

.generator-container {
    flex: 1;
    padding: 0.5rem 0;
    overflow: hidden;
}

/* Generator Layout */
.generator-layout {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 320px 1fr;
    height: calc(100vh - 150px);
    gap: 0;
}

/* Controls Sidebar */
.controls-sidebar {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-right: 1px solid var(--border-light);
    overflow-y: auto;
    padding: 1.5rem;
}

.sidebar-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
}

.sidebar-title i {
    width: 20px;
    height: 20px;
    color: var(--accent-primary);
}

/* Control Sections */
.control-section {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-light);
}

.control-section:last-child {
    border-bottom: none;
}

.section-title {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

/* Quick Actions Grid */
.quick-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.action-btn {
    padding: 0.5rem;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    justify-content: center;
}

.action-btn i {
    width: 14px;
    height: 14px;
}

/* Board Controls */
.board-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.board-controls .btn {
    font-size: 0.75rem;
    padding: 0.5rem;
}

/* Saved Boards List */
.saved-boards-list {
    max-height: 200px;
    overflow-y: auto;
}

.saved-board-item {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
}

.saved-board-item:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-primary);
}

.saved-board-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.saved-board-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.empty-state {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    padding: 1rem;
}

/* Board Area */
.board-area {
    background: var(--bg-secondary);
    position: relative;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.board-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.board-info h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.node-count {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-left: 1rem;
}

/* Board Tools */
.board-tools {
    display: flex;
    gap: 0.5rem;
}

.tool-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    padding: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-secondary);
}

.tool-btn:hover {
    background: var(--bg-secondary);
    border-color: var(--border-medium);
    color: var(--text-primary);
}

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

.tool-btn i {
    width: 18px;
    height: 18px;
}

/* Canvas Container */
.canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: var(--bg-secondary);
    background-image: 
        radial-gradient(circle, var(--border-light) 1px, transparent 1px);
    background-size: 20px 20px;
}

.board-canvas {
    width: 100%;
    height: 100%;
    cursor: move;
}

.board-canvas.select-mode {
    cursor: default;
}

/* SVG Nodes Styling */
.node {
    cursor: pointer;
    transition: all 0.2s;
}

.node-rect {
    fill: var(--bg-primary);
    stroke: var(--border-medium);
    stroke-width: 2;
    rx: 8;
    ry: 8;
}

.node:hover .node-rect {
    stroke: var(--accent-primary);
    stroke-width: 3;
}

.node.selected .node-rect {
    stroke: var(--accent-primary);
    stroke-width: 3;
    filter: drop-shadow(0 0 8px rgba(0, 180, 182, 0.3));
}

.node.central .node-rect {
    fill: var(--accent-primary);
    stroke: var(--accent-primary);
}

.node-text {
    fill: var(--text-primary);
    font-size: 10px;
    font-weight: 500;
    pointer-events: none;
    text-anchor: middle;
    dominant-baseline: middle;
}

.node.central .node-text {
    fill: white;
    font-weight: 600;
    font-size: 12px;
}

/* Connection Lines */
.connection {
    stroke: var(--border-medium);
    stroke-width: 2;
    fill: none;
    opacity: 0.6;
}

.connection.highlighted {
    stroke: var(--accent-primary);
    stroke-width: 3;
    opacity: 1;
}

/* Board Welcome State */
.board-welcome {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    padding: 2rem;
    background: var(--bg-primary);
    border: 2px dashed var(--border-medium);
    border-radius: 12px;
    max-width: 500px;
}

.board-welcome.hidden {
    display: none;
}

.board-welcome i {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.board-welcome h4 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin: 1rem 0;
}

.board-welcome p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.welcome-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 1.5rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.feature-item i {
    width: 16px;
    height: 16px;
    color: var(--accent-primary);
    flex-shrink: 0;
}

/* Context Menu */
.context-menu {
    position: absolute;
    background: var(--bg-primary);
    border: 1px solid var(--border-medium);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    z-index: 1000;
    min-width: 180px;
}

.context-menu-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-primary);
    border-radius: 4px;
    transition: all 0.2s;
}

.context-menu-item:hover {
    background: var(--bg-tertiary);
    color: var(--accent-primary);
}

.context-menu-item i {
    width: 16px;
    height: 16px;
}

/* Export Modal */
.export-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    padding: 1rem 0;
}

.export-option {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.export-option:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.export-option i {
    font-size: 2rem;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
    display: block;
}

.export-title {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.export-desc {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Node Actions Modal */
.node-actions-modal {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.5rem;
    margin: 1rem 0;
}

.node-actions-modal .btn {
    font-size: 0.875rem;
}

/* Node visual states */
.node.dragging {
    opacity: 0.7;
    filter: drop-shadow(2px 2px 8px rgba(0, 0, 0, 0.3));
}

.node.challenge .node-rect {
    fill: rgba(220, 38, 38, 0.1);
    stroke: var(--error);
}

.node.action .node-rect {
    fill: rgba(22, 163, 74, 0.1);
    stroke: var(--success);
}

.node.question .node-rect {
    fill: rgba(234, 179, 8, 0.1);
    stroke: var(--warning);
}

/* AI Notice */
.ai-notice {
    background: linear-gradient(135deg, #fef3c7, #fef9e7);
    border: 1px solid #f59e0b;
    border-radius: 6px;
    padding: 0.75rem;
}

.ai-notice p {
    margin: 0;
    font-size: 0.875rem;
    color: #92400e;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.ai-notice i {
    color: #d97706;
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* Footer Styling */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-light);
    padding: 1rem;
    text-align: center;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 100;
}

.powered-by {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-align: center;
}

.powered-by a {
    color: var(--accent-primary);
    text-decoration: none;
    margin-left: 0.25rem;
}

.powered-by a:hover {
    text-decoration: underline;
}

/* Dark Mode Styles */
[data-theme="dark"] .controls-sidebar {
    background: var(--bg-primary);
    border-color: var(--border-light);
}

[data-theme="dark"] .board-canvas {
    background: var(--bg-secondary);
}

[data-theme="dark"] .node-rect {
    fill: var(--bg-primary);
    stroke: var(--border-medium);
}

[data-theme="dark"] .node.central .node-rect {
    fill: var(--accent-primary);
}

[data-theme="dark"] .connection {
    stroke: var(--border-medium);
}

[data-theme="dark"] .context-menu {
    background: var(--bg-primary);
    border-color: var(--border-medium);
}

[data-theme="dark"] .ai-notice {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(245, 158, 11, 0.08));
    border-color: #f59e0b;
}

[data-theme="dark"] .ai-notice p {
    color: #fbbf24;
}

[data-theme="dark"] .ai-notice i {
    color: #f59e0b;
}

[data-theme="dark"] .footer {
    background: var(--bg-primary);
    border-top-color: var(--border-light);
}

/* History Modal */
.history-modal .modal {
    max-width: 90vw;
    width: 700px;
    max-height: 80vh;
}

.history-modal .modal-body {
    max-height: 60vh;
    overflow-y: auto;
}

@media (min-width: 768px) {
    .history-modal .modal {
        width: 800px;
    }
}

@media (min-width: 1200px) {
    .history-modal .modal {
        width: 900px;
    }
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.history-item {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    padding: 1rem;
    transition: all 0.2s;
    position: relative;
}

.history-item:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-primary);
}

.history-item-header {
    display: flex;
    justify-content: between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}

.history-item-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.25rem 0;
    cursor: pointer;
}

.history-item-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.history-item-actions {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: flex;
    gap: 0.5rem;
}

.history-action-btn {
    background: none;
    border: 1px solid var(--border-medium);
    border-radius: 4px;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-secondary);
}

.history-action-btn:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.history-action-btn.delete:hover {
    background: var(--error);
    border-color: var(--error);
    color: white;
}

.history-empty {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.history-empty i {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    display: block;
}

.history-empty p {
    margin: 0.5rem 0;
}

/* Dark mode history styles */
[data-theme="dark"] .history-empty {
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .generator-layout {
        grid-template-columns: 280px 1fr;
    }
}

@media (max-width: 968px) {
    .generator-layout {
        grid-template-columns: 1fr;
        grid-template-rows: 40vh 1fr;
        height: calc(100vh - 150px);
        gap: 0;
    }
    
    .controls-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--border-light);
        max-height: 40vh;
        overflow-y: auto;
    }
    
    .board-area {
        min-height: 60vh;
    }
    
    .quick-actions {
        grid-template-columns: 1fr;
    }
    
    .board-controls {
        grid-template-columns: 1fr;
    }
    
    .export-options {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .controls-sidebar {
        padding: 1rem;
    }
    
    .board-header {
        padding: 0.75rem 1rem;
    }
    
    .board-tools {
        flex-wrap: wrap;
    }
    
    .welcome-features {
        grid-template-columns: 1fr;
    }
}

/* Mobile Warning Modal */
.mobile-warning-modal {
    max-width: 350px;
    text-align: center;
}

.mobile-warning-content {
    text-align: center;
    padding: 0.5rem;
}

.mobile-warning-icon {
    font-size: 2.5rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    display: block;
}

.mobile-warning-content h4 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.mobile-warning-content p {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    line-height: 1.4;
    font-size: 0.9rem;
}

.mobile-warning-features {
    display: none;
}

/* Disabled Button Styles */
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--text-muted) !important;
    border-color: var(--border-medium) !important;
    color: var(--bg-primary) !important;
}

.btn:disabled:hover {
    opacity: 0.5;
    background: var(--text-muted) !important;
    border-color: var(--border-medium) !important;
    transform: none !important;
    box-shadow: none !important;
}