/* === canvas.css - Modular segment of 8eacher design system === */

/* Memory Map Premium Stylings */
@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.02); opacity: 0.85; }
    100% { transform: scale(1); opacity: 1; }
}

.map-node {
    transition: box-shadow 0.1s ease, border-color 0.1s ease;
}
.map-node:hover {
    box-shadow: inset 0 -4px 0 var(--border-color);
}
.map-node:active {
    box-shadow: inset 0 -1px 0 var(--border-color);
}

.practice-map-node-input:focus {
    border-bottom: 2px solid var(--accent) !important;
}

.practice-map-node-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.5;
}

/* Memory Map Node Buttons & Inner Inputs */
.node-btn {
    background: none;
    border: none;
    font-size: 0.75rem;
    cursor: pointer;
    padding: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: color 0.2s, transform 0.1s;
}
.node-btn:hover {
    color: var(--text-primary);
    transform: scale(1.1);
}
.node-btn.root-btn.active {
    color: var(--warning) !important;
    filter: drop-shadow(0 0 2px var(--warning));
}
.node-explanation-input {
    width: 100%;
    border: none;
    background: var(--bg-secondary);
    border-radius: 4px;
    padding: 2px 4px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    box-sizing: border-box;
    font-family: inherit;
    text-align: center;
    transition: background 0.15s ease, color 0.15s ease;
}
.node-explanation-input:focus {
    outline: none;
    background: var(--bg-tertiary);
    color: var(--text-primary);
}
.node-input {
    flex: 1;
    width: 100%;
    border: none;
    background: var(--bg-secondary);
    border-radius: 4px;
    padding: 2px 4px;
    font-size: 0.8rem;
    color: var(--text-primary);
    box-sizing: border-box;
    font-family: inherit;
    text-align: center;
    font-weight: 700;
    transition: background 0.15s ease;
}
.node-input:focus {
    outline: none;
    background: var(--bg-tertiary);
}
.node-connector-plus {
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--success);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: bold;
    cursor: crosshair;
    z-index: 100;
    border: 2px solid var(--bg-card);
    box-shadow: 0 1px 4px rgba(0,0,0,0.2);
    transition: transform 0.1s ease, background 0.1s ease, opacity 0.15s ease, box-shadow 0.15s ease;
    opacity: 0;
    pointer-events: none;
}
.node-connector-plus.active {
    background: var(--accent) !important;
    box-shadow: 0 0 8px var(--accent) !important;
    transform: scale(1.2) !important;
    opacity: 1 !important;
    pointer-events: auto !important;
}
.map-node:hover .node-connector-plus,
.map-node:focus-within .node-connector-plus {
    opacity: 1;
    pointer-events: auto;
}
.node-connector-plus:hover {
    transform: scale(1.2);
    background: #16a34a;
    box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}
.correct-answer-label {
    font-size: 0.7rem;
    color: var(--success);
    font-weight: 700;
    display: block;
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

/* Standardized Icon SVG Core Styles */
.icon-svg {
    width: 16px;
    height: 16px;
    display: inline-block;
    vertical-align: middle;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.icon-svg.inline-icon {
    width: 14px;
    height: 14px;
    margin-right: 4px;
    vertical-align: -2.5px;
}

.icon-svg.glow {
    filter: drop-shadow(0 0 3px var(--accent));
}

.icon-svg.active {
    color: var(--accent);
}

/* Adjust inline guides Bulb and Link styles to align perfectly */
.guide-wrapper .icon-svg.inline-icon {
    width: 15px;
    height: 15px;
    color: var(--accent);
}

/* Floating Link (Connection) Styling Toolbar */
.map-link-toolbar {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 10px 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.24);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    flex-direction: column;
    width: 220px;
    align-items: stretch;
    box-sizing: border-box;
    transition: opacity 0.15s ease, transform 0.15s ease;
}

/* Segmented Control for Style & Thickness */
.segmented-control {
    display: flex;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    background: var(--bg-secondary);
}

.segmented-btn {
    flex: 1;
    border: none;
    background: none;
    padding: 4px 6px;
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--text-primary);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.segmented-btn.active {
    background: var(--accent);
    color: var(--btn-primary-text);
}

.segmented-btn:not(.active):hover {
    background: var(--border-color);
    opacity: 0.95;
}

.toolbar-section-label {
    font-size: 0.65rem;
    color: var(--text-secondary);
    font-weight: 700;
    margin-top: 6px;
    margin-bottom: 2px;
}


.map-link-toolbar::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 12px;
    height: 12px;
    background: var(--bg-card);
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    pointer-events: none;
}

/* Colors and Styles hover effects */
.color-dot:hover {
    transform: scale(1.3) !important;
}
.color-dot:active {
    transform: scale(1.1) !important;
}

.style-btn:hover {
    filter: brightness(1.1);
}

.link-delete-btn:hover {
    color: #f87171 !important;
    transform: scale(1.15);
}

.link-delete-btn:active {
    transform: scale(0.95);
}

/* Icon Picker Grid button styles */
.icon-picker-dropdown button {
    border: 1px solid transparent;
}
.icon-picker-dropdown button:hover {
    border-color: var(--border-color);
}

/* Node Icon inline styling wrapper */
.node-icon-wrapper svg {
    width: 14px;
    height: 14px;
}



/* Node container layer pointer events pass-through */
#create-map-nodes-container,
#edit-map-nodes-container,
#practice-map-nodes-container {
    pointer-events: none;
}

.map-node {
    pointer-events: auto !important;
}

.map-link-toolbar {
    pointer-events: auto !important;
}

.map-node-toolbar {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.24);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    flex-direction: column;
    width: 220px;
    align-items: stretch;
    box-sizing: border-box;
    transition: var(--transition-smooth);
    pointer-events: auto !important;
}



/* Glassmorphic Zoom Control Panel */
.canvas-zoom-controls {
    position: -webkit-sticky;
    position: sticky;
    left: calc(100% - 12px);
    top: calc(100% - 12px);
    transform: translate(-100%, -100%);
    margin-right: 12px;
    margin-bottom: 12px;
    z-index: 10;
    width: -webkit-max-content;
    width: -moz-max-content;
    width: max-content;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    user-select: none;
    pointer-events: auto !important;
}

.zoom-ctrl-btn {
    border: none;
    background: none;
    cursor: pointer;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 800;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
    padding: 0;
}

.zoom-ctrl-btn:hover {
    background: var(--bg-secondary);
    transform: scale(1.1);
}

.zoom-ctrl-btn:active {
    transform: scale(0.95);
}

.zoom-percent {
    font-size: 0.65rem;
    font-weight: 800;
    color: var(--text-secondary);
    min-width: 32px;
    text-align: center;
    font-family: monospace;
}
/* Fullscreen Canvas Styling */
.canvas-container-fullscreen {
    position: fixed !important;
    inset: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    z-index: 9999 !important;
    border-radius: 0 !important;
    background: var(--bg-page) !important;
    border: none !important;
    box-shadow: none !important;
}

#create-map-canvas-container,
#edit-map-canvas-container {
    height: calc(100vh - 360px);
    min-height: 480px;
    max-height: 800px;
    width: 100%;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#practice-map-canvas-container {
    height: 100%;
    width: 100%;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.zoom-ctrl-btn.fullscreen-active,
.zoom-ctrl-btn.grid-active {
    background: var(--warning) !important;
    color: var(--bg-card) !important;
}

.zoom-ctrl-text-btn {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 0.72rem;
    font-weight: 800;
    cursor: pointer;
    padding: 3px 7px;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    font-family: inherit;
    outline: none;
}

.zoom-ctrl-text-btn:hover {
    background: var(--bg-secondary);
    transform: scale(1.05);
}

.zoom-ctrl-text-btn:active {
    transform: scale(0.95);
}

.zoom-divider {
    color: var(--border-color);
    font-size: 0.75rem;
    margin: 0 4px;
    user-select: none;
}



/* Floating Fullscreen Close Button */
.fullscreen-close-btn {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    z-index: 10000;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(0,0,0,0.25);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: transform 0.1s, opacity 0.15s;
}
.fullscreen-close-btn:active {
    transform: scale(0.9);
}
.fullscreen-close-btn svg {
    pointer-events: none;
}