/**
 * Minimax & Alpha-Beta Pruning Visualizer Styles
 *
 * Visualization-specific styles only. Common styles are in visualizations.css.
 */

/* ============================================
   Minimax-Specific CSS Custom Properties
   ============================================ */
:root {
    /* Node type colors */
    --minimax-max-bg: #e3f2fd;
    --minimax-max-border: #1976d2;
    --minimax-min-bg: #fce4ec;
    --minimax-min-border: #c2185b;

    /* State colors */
    --minimax-current-bg: var(--viz-warning-bg);
    --minimax-current-border: #f9a825;
    --minimax-pruned-bg: var(--viz-danger-bg);
    --minimax-pruned-border: #c62828;
    --minimax-optimal-bg: var(--viz-success-bg);
    --minimax-optimal-border: var(--viz-success-border);
    --minimax-evaluated-bg: #f5f5f5;
    --minimax-evaluated-border: #9e9e9e;
    --minimax-selected-bg: #e1f5fe;
    --minimax-selected-border: #0288d1;

    /* Alpha-Beta indicators */
    --minimax-alpha-color: #1565c0;
    --minimax-beta-color: #c62828;

    /* Game board colors */
    --minimax-cell-bg: var(--viz-bg);
    --minimax-cell-border: var(--viz-border);
    --minimax-cell-hover: var(--viz-hover-bg);
    --minimax-x-color: #1976d2;
    --minimax-o-color: #c2185b;
    --minimax-text: var(--viz-text);
    --minimax-domain-text: var(--viz-text-muted);

    /* Nim colors */
    --minimax-nim-object: #8d6e63;
    --minimax-nim-object-hover: #5d4037;
    --minimax-nim-selected: #ff9800;
}

[data-theme="gruvbox-dark"] {
    --minimax-max-bg: rgba(131, 165, 152, 0.3);
    --minimax-max-border: #83a598;
    --minimax-min-bg: rgba(211, 134, 155, 0.3);
    --minimax-min-border: #d3869b;

    --minimax-current-border: #fabd2f;
    --minimax-pruned-border: #fb4934;
    --minimax-evaluated-bg: rgba(168, 153, 132, 0.2);
    --minimax-evaluated-border: #a89984;
    --minimax-selected-bg: rgba(131, 165, 152, 0.4);
    --minimax-selected-border: #83a598;

    --minimax-alpha-color: #83a598;
    --minimax-beta-color: #fb4934;

    --minimax-x-color: #83a598;
    --minimax-o-color: #d3869b;

    --minimax-nim-object: #d5c4a1;
    --minimax-nim-object-hover: #ebdbb2;
    --minimax-nim-selected: #fe8019;
}

/* ============================================
   Controls Bar
   ============================================ */
.controls-panel {
    margin-bottom: 15px;
}

.controls-bar-body {
    padding: 10px 15px !important;
}

.controls-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 20px;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.control-group label {
    margin: 0;
    font-size: 13px;
    white-space: nowrap;
}

.control-group select {
    font-size: 12px;
    padding: 4px 8px;
    width: auto;
}

.control-group .checkbox-inline {
    padding-left: 20px;
}

/* Depth +/- buttons */
.depth-buttons {
    display: flex;
    align-items: center;
    gap: 8px;
}

.depth-buttons .btn {
    padding: 4px 10px;
    min-width: 32px;
}

.depth-display {
    font-family: var(--viz-mono-font);
    font-weight: bold;
    font-size: 14px;
    min-width: 20px;
    text-align: center;
}

.game-selector .btn {
    padding: 5px 12px;
}

.game-selector .btn.active {
    background-color: var(--minimax-current-bg);
    border-color: var(--minimax-current-border);
}

[data-theme="gruvbox-dark"] .game-selector .btn.active {
    background-color: rgba(250, 189, 47, 0.3);
    border-color: #fabd2f;
    color: #ebdbb2;
}

/* ============================================
   Main Tree Panel
   ============================================ */
.tree-panel {
    margin-bottom: 15px;
}

.tree-panel .panel-heading {
    padding: 8px 15px;
}

.tree-panel .panel-title {
    font-size: 14px;
}

.tree-stats {
    font-size: 12px;
    font-weight: normal;
    color: var(--minimax-domain-text);
}

.tree-panel-body {
    padding: 0 !important;
}

.game-tree-container-main {
    position: relative;
    width: 100%;
    height: 500px;
    overflow: hidden;
    background-color: var(--minimax-cell-bg);
    border-bottom: 1px solid var(--minimax-cell-border);
}

[data-theme="gruvbox-dark"] .game-tree-container-main {
    background-color: #1d2021;
}

/* ============================================
   Tree Loading Progress
   ============================================ */
.tree-loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 20px;
}

.loading-phases {
    width: 320px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.loading-phase {
    background: #f8f9fa;
    border-radius: 6px;
    padding: 8px 12px;
    border: 1px solid #e0e0e0;
    opacity: 0.5;
    transition: opacity 0.2s, border-color 0.2s;
}

.loading-phase.active {
    opacity: 1;
    border-color: #1976d2;
    background: #e3f2fd;
}

.loading-phase.complete {
    opacity: 0.8;
    border-color: #4caf50;
    background: #e8f5e9;
}

.phase-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.phase-icon {
    width: 20px;
    text-align: center;
    color: #666;
}

.loading-phase.active .phase-icon {
    color: #1976d2;
}

.loading-phase.complete .phase-icon {
    color: #4caf50;
}

.phase-label {
    flex: 1;
    font-size: 12px;
    font-weight: 500;
    color: #333;
}

.phase-status {
    font-size: 11px;
    font-family: var(--viz-mono-font);
    color: #666;
    min-width: 80px;
    text-align: right;
}

.loading-phase.complete .phase-status {
    color: #4caf50;
}

.phase-progress-container {
    height: 4px;
    background: #e0e0e0;
    border-radius: 2px;
    overflow: hidden;
}

.phase-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #1976d2, #42a5f5);
    border-radius: 2px;
    transition: width 0.1s ease-out;
}

.loading-phase.complete .phase-progress-bar {
    background: #4caf50;
}

/* ============================================
   Depth Line Overlay
   ============================================ */
.depth-line-overlay {
    position: absolute;
    left: 0;
    right: 0;
    pointer-events: none;
    z-index: 10;
}

.depth-line {
    width: 100%;
    height: 0;
    border-top: 2px dashed #e53935;
}

.depth-line-label {
    position: absolute;
    left: 10px;
    top: -18px;
    background: rgba(255, 255, 255, 0.9);
    color: #e53935;
    font-size: 11px;
    font-weight: bold;
    padding: 2px 6px;
    border-radius: 3px;
}

/* Tree SVG */
.game-tree-svg {
    width: 100%;
    height: 100%;
    cursor: grab;
}

.game-tree-svg:active {
    cursor: grabbing;
}

/* ============================================
   Tree Legend Bar (Uses shared but with overrides)
   ============================================ */
.tree-dot-max {
    background-color: var(--minimax-max-bg);
    border-color: var(--minimax-max-border);
}

.tree-dot-min {
    background-color: var(--minimax-min-bg);
    border-color: var(--minimax-min-border);
}

.tree-dot-pruned {
    background-color: var(--minimax-pruned-bg);
    border-color: var(--minimax-pruned-border);
}

.tree-dot-optimal {
    background-color: var(--minimax-optimal-bg);
    border-color: var(--minimax-optimal-border);
}

/* ============================================
   Tree Node Styling
   ============================================ */
.tree-node-bg {
    stroke-width: 2;
    rx: 3;
}

.tree-node-bg.max-node {
    fill: var(--minimax-max-bg);
    stroke: var(--minimax-max-border);
}

.tree-node-bg.min-node {
    fill: var(--minimax-min-bg);
    stroke: var(--minimax-min-border);
}

.tree-node-bg.optimal-node {
    fill: var(--minimax-optimal-bg);
    stroke: var(--minimax-optimal-border);
    stroke-width: 3;
}

.tree-node-bg.pruned-node {
    fill: var(--minimax-pruned-bg);
    stroke: var(--minimax-pruned-border);
    opacity: 0.6;
    stroke-dasharray: 4 2;
}

.tree-node-bg.terminal-node {
    fill: var(--minimax-evaluated-bg);
    stroke: var(--minimax-evaluated-border);
}

.tree-node-bg.selected-node {
    fill: var(--minimax-selected-bg);
    stroke: var(--minimax-selected-border);
    stroke-width: 3;
    filter: drop-shadow(0 0 6px var(--minimax-selected-border));
}

/* Nodes beyond depth limit */
.tree-node-bg.beyond-depth-node {
    fill: var(--minimax-evaluated-bg);
    stroke: var(--minimax-evaluated-border);
    opacity: 0.4;
}

.tree-node.beyond-depth {
    opacity: 0.4;
}

.tree-node.beyond-depth .tree-grid-value,
.tree-node.beyond-depth .tree-node-value {
    opacity: 0.5;
}

/* Mini-grid cells */
.tree-grid-cell {
    fill: var(--minimax-cell-bg);
    stroke: var(--minimax-cell-border);
    stroke-width: 0.5;
}

.tree-grid-cell.last-move-cell {
    fill: var(--minimax-current-bg);
}

.tree-grid-value {
    font-family: 'Arial', sans-serif;
    font-size: 10px;
    font-weight: bold;
    text-anchor: middle;
    pointer-events: none;
}

.tree-grid-value.x-value {
    fill: var(--minimax-x-color);
}

.tree-grid-value.o-value {
    fill: var(--minimax-o-color);
}

/* Ghost pieces for hover preview */
.tree-grid-ghost {
    font-family: 'Arial', sans-serif;
    font-size: 10px;
    font-weight: bold;
    text-anchor: middle;
    pointer-events: none;
    transition: opacity 0.15s ease;
}

.tree-grid-ghost.ghost-x {
    fill: var(--minimax-x-color);
}

.tree-grid-ghost.ghost-o {
    fill: var(--minimax-o-color);
}

/* Interactive cell overlay */
.tree-grid-interactive {
    fill: transparent;
    stroke: none;
    cursor: pointer;
}

.tree-grid-cell.cell-hover {
    fill: var(--minimax-current-bg);
    stroke: var(--minimax-current-border);
    stroke-width: 1;
}

/* Node value label */
.tree-node-value {
    font-family: var(--viz-mono-font);
    font-size: 10px;
    font-weight: bold;
    text-anchor: middle;
    fill: var(--minimax-text);
}

.tree-node-value.positive {
    fill: var(--minimax-max-border);
}

.tree-node-value.negative {
    fill: var(--minimax-min-border);
}

.tree-node-value.zero {
    fill: var(--minimax-domain-text);
}

/* Alpha-Beta labels */
.tree-alpha-beta-label {
    font-family: var(--viz-mono-font);
    font-size: 8px;
    text-anchor: middle;
    pointer-events: none;
}

.tree-alpha-label {
    fill: var(--minimax-alpha-color);
}

.tree-beta-label {
    fill: var(--minimax-beta-color);
}

/* Tree edges - use shared but with overrides */
.tree-edge.optimal {
    stroke: var(--minimax-optimal-border);
    stroke-width: 3;
    opacity: 1;
}

.tree-edge.pruned {
    stroke: var(--minimax-pruned-border);
    stroke-width: 2;
    opacity: 0.4;
    stroke-dasharray: 4 2;
}

.tree-edge.beyond-depth {
    stroke: var(--minimax-evaluated-border);
    stroke-width: 1;
    opacity: 0.3;
}

.tree-edge.edge-highlight {
    stroke: var(--minimax-current-border);
    stroke-width: 4;
    opacity: 1;
    filter: drop-shadow(0 0 4px var(--minimax-current-border));
}

/* Depth limit line */
.depth-limit-line {
    stroke: var(--minimax-pruned-border);
    stroke-width: 2;
    stroke-dasharray: 8 4;
    opacity: 0.6;
}

.depth-limit-label {
    font-family: var(--viz-mono-font);
    font-size: 11px;
    fill: var(--minimax-pruned-border);
    opacity: 0.8;
}

/* ============================================
   Tree Tooltip Override
   ============================================ */
.tree-tooltip-title {
    color: var(--minimax-current-border);
}

.tree-tooltip-alpha {
    color: var(--minimax-alpha-color);
}

.tree-tooltip-beta {
    color: var(--minimax-beta-color);
}

/* ============================================
   Side Panel - Board Preview
   ============================================ */
.game-container {
    padding: 10px 0;
}

.selected-board-preview {
    text-align: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}

.preview-grid {
    display: inline-grid;
    grid-template-columns: repeat(3, 50px);
    grid-template-rows: repeat(3, 50px);
    gap: 2px;
    background-color: var(--minimax-cell-border);
    border: 2px solid var(--minimax-cell-border);
    padding: 2px;
    border-radius: 4px;
}

.preview-cell {
    width: 50px;
    height: 50px;
    background-color: var(--minimax-cell-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: bold;
    border-radius: 2px;
}

.preview-cell.x-cell {
    color: var(--minimax-x-color);
}

.preview-cell.o-cell {
    color: var(--minimax-o-color);
}

.preview-cell.last-move {
    background-color: #fff3e0;
}

/* Ghost pieces for available moves */
.preview-cell.available-move {
    position: relative;
    transition: background-color 0.15s ease;
}

.preview-cell.available-move:hover {
    background-color: #e3f2fd;
}

.preview-cell.ghost-x::after {
    content: 'X';
    color: var(--minimax-x-color);
    opacity: 0.25;
    font-size: 28px;
    font-weight: bold;
    transition: opacity 0.15s ease;
}

.preview-cell.ghost-x:hover::after {
    opacity: 0.6;
}

.preview-cell.ghost-o::after {
    content: 'O';
    color: var(--minimax-o-color);
    opacity: 0.25;
    font-size: 28px;
    font-weight: bold;
    transition: opacity 0.15s ease;
}

.preview-cell.ghost-o:hover::after {
    opacity: 0.6;
}

.preview-grid .tictactoe-cell {
    width: 50px;
    height: 50px;
    font-size: 28px;
    cursor: default;
}

.preview-grid .tictactoe-cell:hover {
    transform: none;
    background-color: var(--minimax-cell-bg);
}

.tictactoe-cell {
    width: 50px;
    height: 50px;
    background-color: var(--minimax-cell-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: bold;
    cursor: default;
    transition: background-color 0.15s ease;
    border-radius: 2px;
    user-select: none;
}

.tictactoe-cell.occupied {
    cursor: default;
}

.tictactoe-cell.x-cell {
    color: var(--minimax-x-color);
}

.tictactoe-cell.o-cell {
    color: var(--minimax-o-color);
}

.tictactoe-cell.winning-cell {
    background-color: var(--minimax-optimal-bg);
    border: 2px solid var(--minimax-optimal-border);
}

.tictactoe-cell.last-move {
    background-color: var(--minimax-current-bg);
    border: 2px solid var(--minimax-current-border);
}

/* ============================================
   Nim Game (Side Panel Preview)
   ============================================ */
.preview-piles {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 15px;
    min-height: 120px;
    align-items: flex-end;
}

.nim-pile {
    display: flex;
    flex-direction: column-reverse;
    align-items: center;
    gap: 4px;
    padding: 8px;
    border-radius: 4px;
    background-color: var(--minimax-cell-bg);
    border: 1px solid var(--minimax-cell-border);
    min-width: 40px;
}

.nim-pile-label {
    font-size: 11px;
    font-weight: bold;
    color: var(--minimax-domain-text);
    margin-top: 5px;
}

.nim-object {
    width: 30px;
    height: 12px;
    background-color: var(--minimax-nim-object);
    border-radius: 3px;
}

.nim-object.removed {
    opacity: 0.2;
}

/* ============================================
   Game Status
   ============================================ */
.game-status {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.player-indicator {
    font-size: 14px;
    font-weight: bold;
    padding: 4px 12px;
    border-radius: 4px;
    background-color: var(--minimax-cell-bg);
    border: 2px solid var(--minimax-cell-border);
}

.player-indicator.x-turn {
    border-color: var(--minimax-x-color);
    color: var(--minimax-x-color);
}

.player-indicator.o-turn {
    border-color: var(--minimax-o-color);
    color: var(--minimax-o-color);
}

.game-result {
    font-size: 14px;
    font-weight: bold;
    padding: 6px 15px;
    border-radius: 4px;
}

.game-result.x-wins {
    background-color: var(--minimax-max-bg);
    border: 2px solid var(--minimax-max-border);
    color: var(--minimax-x-color);
}

.game-result.o-wins {
    background-color: var(--minimax-min-bg);
    border: 2px solid var(--minimax-min-border);
    color: var(--minimax-o-color);
}

.game-result.draw {
    background-color: var(--minimax-evaluated-bg);
    border: 2px solid var(--minimax-evaluated-border);
    color: var(--minimax-text);
}

/* ============================================
   Node Details Panel
   ============================================ */
.node-details-body {
    padding: 12px 15px !important;
    min-height: 150px;
}

.node-details {
    display: none;
}

.node-detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    border-bottom: 1px solid var(--minimax-cell-border);
}

.node-detail-row:last-child {
    border-bottom: none;
}

.node-detail-label {
    font-size: 12px;
    color: var(--minimax-domain-text);
}

.node-detail-value {
    font-size: 12px;
    font-weight: bold;
    font-family: var(--viz-mono-font);
}

.node-detail-value.alpha-value {
    color: var(--minimax-alpha-color);
}

.node-detail-value.beta-value {
    color: var(--minimax-beta-color);
}

.node-detail-value.positive-value {
    color: var(--minimax-max-border);
}

.node-detail-value.negative-value {
    color: var(--minimax-min-border);
}

.node-detail-value.max-text {
    color: var(--minimax-max-border);
}

.node-detail-value.min-text {
    color: var(--minimax-min-border);
}

.node-detail-value.pruned-text {
    color: var(--minimax-pruned-border);
}

.node-detail-value.optimal-text {
    color: var(--minimax-optimal-border);
}

/* ============================================
   Heuristic Function Panel
   ============================================ */
.heuristic-panel {
    padding: 12px 15px !important;
}

.heuristic-description {
    font-size: 12px;
    color: var(--minimax-domain-text);
    margin-bottom: 12px;
    line-height: 1.4;
}

.heuristic-description code {
    background-color: var(--minimax-evaluated-bg);
    padding: 2px 5px;
    border-radius: 3px;
    font-size: 11px;
}

.heuristic-inputs {
    margin-bottom: 12px;
}

.heuristic-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    padding: 4px 0;
    border-bottom: 1px solid var(--minimax-cell-border);
}

.heuristic-row:last-child {
    border-bottom: none;
}

.heuristic-row label {
    font-size: 12px;
    margin: 0;
    cursor: help;
    color: var(--minimax-text);
}

.heuristic-row label i {
    color: var(--minimax-domain-text);
    margin-right: 4px;
    width: 16px;
    text-align: center;
}

.heuristic-input {
    width: 60px;
    padding: 4px 8px;
    font-family: var(--viz-mono-font);
    font-size: 12px;
    text-align: right;
    border: 1px solid var(--minimax-cell-border);
    border-radius: 3px;
    background-color: var(--minimax-cell-bg);
    color: var(--minimax-text);
}

.heuristic-input:focus {
    outline: none;
    border-color: var(--minimax-selected-border);
    box-shadow: 0 0 3px var(--minimax-selected-border);
}

#btn-apply-heuristic {
    margin-top: 5px;
}

.panel-collapse {
    display: none;
}

.panel-collapse.in {
    display: block;
}

/* Text utility classes */
.max-text {
    color: var(--minimax-max-border);
    font-weight: bold;
}

.min-text {
    color: var(--minimax-min-border);
    font-weight: bold;
}

.alpha-text {
    color: var(--minimax-alpha-color);
    font-weight: bold;
}

.beta-text {
    color: var(--minimax-beta-color);
    font-weight: bold;
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 992px) {
    .controls-row {
        gap: 12px;
    }

    .control-group {
        gap: 5px;
    }

    .depth-slider {
        width: 60px;
    }

    .game-tree-container-main {
        height: 400px;
    }
}

@media (max-width: 768px) {
    .controls-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .control-group {
        width: 100%;
        justify-content: space-between;
    }

    .game-tree-container-main {
        height: 300px;
    }

    .tree-legend-bar {
        flex-wrap: wrap;
        gap: 8px;
    }

    .preview-grid {
        grid-template-columns: repeat(3, 40px);
        grid-template-rows: repeat(3, 40px);
    }

    .preview-grid .tictactoe-cell {
        width: 40px;
        height: 40px;
        font-size: 22px;
    }
}