* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Color Scheme */
:root {
    --background: #1a1a1a;
    --surface: #2d2d2d;
    --borders: #404040;
    --primary: #4d9fff;
    --success: #4a9c47;
    --text: #e0e0e0;
    --accent: #ff6b6b;
    --ui-bg: #2a4a4a; /* Dark greyish seafoam */
    --expanded-top-height: 160px;
    --collapsed-top-height: 30px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background);
    color: var(--text);
    height: 100vh;
    overflow: hidden;
    font-size: 16px;
}

/* Top Section - Fixed height to fit content exactly */
.top-section {
    height: var(--expanded-top-height);
    background-color: var(--ui-bg);
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 20px;
}

/* Left Side - Contains games-details and control bar */
.left-side {
    flex: 1;
    display: flex;
    flex-direction: column;
    order: 1;
}

/* Login Section - Positioned on the right */
.login-section {
    flex-shrink: 0;
    align-self: flex-start;
    order: 2;
    height: var(--collapsed-top-height);
    display: flex;
    align-items: center;
}

/* Collapsed state styles */
.top-section.collapsed {
    height: var(--collapsed-top-height);
}

.top-section.collapsed .games-details-section {
    display: none;
}

/* Control Bar */
.control-bar {
    height: var(--collapsed-top-height);
    background-color: var(--ui-bg);
    padding: 10px 10px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.threshold-controls {
    flex: 4;
    display: flex;
    gap: 30px;
    align-items: center;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.control-label {
    font-size: 16px;
    color: #c0c0c0;
    min-width: 80px;
}

.slider {
    width: 120px;
    height: 6px;
    background-color: var(--borders);
    border-radius: 3px;
    outline: none;
}

.slider::-webkit-slider-thumb {
    appearance: none;
    width: 18px;
    height: 18px;
    background-color: var(--primary);
    border-radius: 50%;
    cursor: pointer;
}

.number-input {
    width: 50px;
    padding: 4px;
    background-color: var(--background);
    border: 1px solid var(--borders);
    color: var(--text);
    text-align: center;
    font-size: 14px;
}

.settings-area {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.settings-button {
    background-color: #666;
    border: none;
    color: white;
    padding: 6px 8px;
    cursor: pointer;
    font-size: 14px;
}

/* Games & Details Section */
.games-details-section {
    height: 60px;
    flex: 1;
    display: flex;
    gap: 2px;
    padding: 0 0 0 0;
    align-items: flex-start;
    border-bottom: 1px solid var(--borders);
}

/* Game Section - Common properties for both Game1 and Game2 */
.game-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 5px 15px 5px 15px;
}

.game-lookahead {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
}

/* Make the search divs themselves flex containers to properly expand */
#game1Search, #game2Search, #aspect1Search, #aspect2Search {
    display: flex;
    flex: 1;
}

.target-indicator {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    line-height: 1;
    color: var(--text-muted, #888);
    transition: color 0.2s ease, transform 0.2s ease;
    user-select: none;
    cursor: pointer;
}

.target-indicator.active {
    color: var(--accent, #ff6b6b);
    font-weight: bold;
}

.target-indicator:hover {
    transform: scale(1.1);
}

/* LookAheadBox Component Styles */
.lookahead-container {
    position: relative;
    width: 100%;
    flex: 1; /* Ensure proper expansion within containers */
}

.lookahead-input {
    width: 100%;
    padding: 8px;
    background-color: var(--background);
    border: 1px solid var(--borders);
    color: var(--text);
    font-size: 16px;
    border-radius: 4px;
    box-sizing: border-box;
}

.lookahead-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(77, 159, 255, 0.2);
}

.lookahead-options {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--background);
    border: 1px solid var(--borders);
    border-top: none;
    border-radius: 0 0 4px 4px;
    max-height: 200px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.lookahead-option {
    padding: 8px 12px;
    cursor: pointer;
    border-bottom: 1px solid var(--borders);
    transition: background-color 0.2s;
}

.lookahead-option:last-child {
    border-bottom: none;
}

.lookahead-option:hover {
    background-color: var(--primary);
    color: white;
}

.lookahead-option.selected {
    background-color: var(--primary);
    color: white;
}

.lookahead-option .highlight {
    background-color: #ffeb3b;
    color: #333;
    font-weight: bold;
    padding: 0 2px;
}

.lookahead-option-banished {
    background-color: rgba(120, 40, 40, 0.12);
    color: var(--text-secondary, #666);
    cursor: not-allowed;
}

.lookahead-option-banished:hover {
    background-color: rgba(120, 40, 40, 0.18);
    color: var(--text-secondary, #666);
}

.lookahead-banished-icon {
    opacity: 0.85;
}

.aspect-lookahead {
    width: 100%;
}

.aspect-details {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    gap: 15px;
}

.aspect-details > div {
    display: flex;
    align-items: center;
    gap: 8px;
}

.prominence-separator {
    font-size: 16px;
    color: #c0c0c0;
    font-weight: 700;
    margin: 0 5px;
}

.prominence-label {
    font-size: 14px;
    color: #c0c0c0;
    margin: 0 5px;
    font-weight: 500;
}

.prominence-value {
    padding: 4px 8px;
    background-color: var(--background);
    border: 1px solid var(--borders);
    min-width: 40px;
    text-align: center;
}

.prominence-value.user {
    min-width: 25px;
}

.prominence-input {
    padding: 4px 8px;
    background-color: var(--background);
    border: 1px solid var(--primary);
    border-radius: 4px;
    color: var(--text);
    min-width: 40px;
    text-align: center;
    font-size: 14px;
}

.prominence-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(255, 107, 107, 0.2);
}

.prominence-input::-webkit-inner-spin-button,
.prominence-input::-webkit-outer-spin-button {
    opacity: 1;
}

.prominence-input:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background-color: var(--surface);
}

.correlation-input {
    padding: 4px 8px;
    background-color: var(--background);
    border: 1px solid var(--primary);
    border-radius: 4px;
    color: var(--text);
    min-width: 40px;
    text-align: center;
    font-size: 14px;
}

.correlation-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(255, 107, 107, 0.2);
}

.correlation-input::-webkit-inner-spin-button,
.correlation-input::-webkit-outer-spin-button {
    opacity: 1;
}

.correlation-input:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background-color: var(--surface);
}

/* Correlation Section */
.correlation-section {
    width: 120px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin-top: 10px;
    padding: 15px;
}

.correlation-label {
    font-size: 16px;
    color: #c0c0c0;
    margin-bottom: 10px;
    font-weight: 700;
}

.correlation-values {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.collapse-button {
    background: none;
    border: none;
    color: var(--text);
    font-size: 20px;
    cursor: pointer;
    padding: 5px;
}

.user-button {
    background-color: var(--primary);
    border: none;
    color: white;
    padding: 10px 10px;
    cursor: pointer;
    font-size: 16px;
}

/* Graph Container - Takes remaining height after top section */
.graph-container {
    height: calc(100vh - var(--expanded-top-height));
    background-color: var(--background);
    position: relative;
}

.graph-viewport {
    width: 100%;
    height: 100%;
    background: var(--surface);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    font-size: 18px;
}

/* Login Overlay Styles */
.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.login-overlay.show {
    display: flex;
}

.login-modal {
    background-color: var(--ui-bg);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    width: 400px;
    max-width: 90vw;
    animation: modalSlideIn 0.3s ease-out;
}

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

.login-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 20px 15px 20px;
    border-bottom: 1px solid var(--borders);
}

.login-header h3 {
    margin: 0;
    color: var(--text);
    font-size: 18px;
}

.close-button {
    background: none;
    border: none;
    color: var(--text);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.close-button:hover {
    background-color: var(--borders);
}

.login-content {
    padding: 20px;
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text);
    font-weight: 500;
}

.input-group input {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--borders);
    border-radius: 4px;
    font-size: 16px;
    background-color: var(--background);
    color: var(--text);
    box-sizing: border-box;
    transition: border-color 0.2s;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary);
}

.input-group input.invalid {
    border-color: #e74c3c;
}

.input-hint {
    font-size: 12px;
    color: #888;
    margin-top: 6px;
    line-height: 1.4;
}

.login-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.login-submit {
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.login-submit:hover {
    background-color: #0056b3;
}

.login-submit:disabled {
    background-color: var(--borders);
    cursor: not-allowed;
}

/* Google Login Button Styles */
.google-login-section {
    margin-bottom: 20px;
}

.google-login-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 12px 24px;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    color: #333;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.2s, box-shadow 0.2s;
}

.google-login-btn:hover {
    background-color: #f7f7f7;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.google-icon {
    flex-shrink: 0;
}

/* Login Divider */
.login-divider {
    display: flex;
    align-items: center;
    margin: 20px 0;
    color: #888;
    font-size: 14px;
}

.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: var(--borders);
}

.login-divider span {
    padding: 0 15px;
}

/* User Profile Section */
.user-profile-section {
    text-align: center;
    padding: 20px 0;
}

.user-profile {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

.user-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 2px solid var(--primary);
}

.user-info {
    text-align: left;
}

.user-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 4px;
}

.user-email {
    font-size: 14px;
    color: #888;
}

.logout-btn {
    background-color: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    padding: 10px 24px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
}

.logout-btn:hover {
    background-color: var(--accent);
    color: white;
}

/* User button with avatar */
.user-button.authenticated {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 10px;
}

.user-button-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
}



/* Remove spinner buttons from number inputs */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type="number"] {
    -moz-appearance: textfield;
}

/* ==================== Graph Visualization Styles ==================== */

/* Canvas Container - Holds the active renderer's canvas */
.canvas-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

/* Graph Canvas - Common styles for both 2D SVG and 3D Canvas */
.graph-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* 2D SVG Canvas specific */
#graph2dCanvas {
    background-color: transparent;
}

/* 3D WebGL Canvas specific */
#graph3dCanvas {
    background-color: transparent;
}

/* Empty State - Shown when no graph data */
.graph-empty-state {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #888;
    font-size: 18px;
    pointer-events: none;
    z-index: 10;
}

.graph-empty-state p {
    margin: 0;
    padding: 20px;
    background-color: rgba(45, 45, 45, 0.8);
    border-radius: 8px;
    border: 1px solid var(--borders);
}

/* Loading State - Shown during mode switching */
.graph-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--text);
    font-size: 16px;
    z-index: 20;
    background-color: rgba(26, 26, 26, 0.9);
    padding: 30px 40px;
    border-radius: 8px;
    border: 1px solid var(--borders);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    margin: 0 auto 15px;
    border: 3px solid var(--borders);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Action loading — explore, graph selection awaiting API */
.graph-action-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 25;
    pointer-events: none;
    text-align: center;
}

.graph-action-loading-message {
    margin: 0;
    font-size: 14px;
    color: var(--text);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.85);
}

.whirlpool-spinner {
    width: 56px;
    height: 56px;
    color: var(--primary);
    filter: drop-shadow(0 0 8px rgba(77, 159, 255, 0.45));
}

.whirlpool-spinner svg {
    width: 100%;
    height: 100%;
    animation: whirlpool-spin 1.1s linear infinite;
}

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

/* Graph Viewport - Enhanced for canvas support */
.graph-viewport {
    width: 100%;
    height: 100%;
    background: var(--surface);
    position: relative;
    overflow: hidden;
}

/* Debug View Placeholder - Hidden by default, togglable for development */
.graph-placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #666;
    font-size: 14px;
    max-width: 80%;
    z-index: 5;
    background-color: rgba(45, 45, 45, 0.95);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--borders);
}

.graph-placeholder h3 {
    margin-bottom: 15px;
    color: var(--text);
}

.graph-placeholder h4 {
    margin-top: 15px;
    margin-bottom: 10px;
    color: var(--text);
}

.graph-placeholder button {
    margin: 5px;
    padding: 8px 16px;
    background-color: var(--primary);
    border: none;
    color: white;
    cursor: pointer;
    border-radius: 4px;
    font-size: 14px;
}

.graph-placeholder button:hover {
    background-color: #3a8ae8;
}

/* Node Styles for SVG (2D Force Graph) */
.graph-node {
    cursor: pointer;
    transition: transform 0.1s ease;
}

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

.graph-node.selected {
    stroke: var(--accent);
    stroke-width: 3px;
}

.graph-node.game {
    fill: var(--primary);
}

.graph-node.aspect {
    fill: var(--success);
}

/* Edge Styles for SVG (2D Force Graph) */
.graph-edge {
    stroke: var(--borders);
    stroke-opacity: 0.6;
    fill: none;
}

.graph-edge.correlation {
    stroke-dasharray: 5, 5;
}

.graph-edge.prominence {
    stroke-dasharray: none;
}

.graph-edge.highlighted {
    stroke: var(--accent);
    stroke-opacity: 1;
}

.graph-edge.edge-hovered {
    stroke: var(--accent);
    stroke-opacity: 1;
    stroke-width: max(3px, 1px);
}

.graph-edge-hit {
    pointer-events: stroke;
}

.graph-node.edge-endpoint-highlight {
    stroke: var(--accent);
    stroke-width: 3px;
}

/* Node Labels for SVG */
.graph-label {
    font-size: 12px;
    fill: var(--text);
    pointer-events: none;
    text-anchor: middle;
    dominant-baseline: central;
}

/* Tooltip for Node Hover */
.graph-tooltip {
    position: absolute;
    background-color: var(--background);
    border: 1px solid var(--borders);
    border-radius: 4px;
    padding: 8px 12px;
    font-size: 14px;
    color: var(--text);
    pointer-events: none;
    z-index: 100;
    max-width: 250px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: opacity 0.2s ease;
}

/* Graph selection toolbar & bulk bar (Plan 015 Phase 8) */
.graph-selection-toolbar {
    position: absolute;
    top: 8px;
    left: 8px;
    z-index: 50;
    display: flex;
    gap: 6px;
    pointer-events: auto;
}

.graph-selection-toggle {
    padding: 6px 12px;
    font-size: 13px;
    border: 1px solid var(--borders);
    border-radius: 4px;
    background: rgba(45, 45, 45, 0.92);
    color: var(--text);
    cursor: pointer;
}

.graph-selection-toggle:hover {
    border-color: var(--primary);
}

.graph-selection-toggle.is-active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.graph-selection-toggle:disabled,
.graph-selection-toggle.is-disabled {
    opacity: 0.45;
    cursor: not-allowed;
    pointer-events: none;
}

.graph-bulk-action-bar {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 50;
    display: flex;
    gap: 8px;
    padding: 8px 12px;
    background: rgba(45, 45, 45, 0.95);
    border: 1px solid var(--borders);
    border-radius: 8px;
    pointer-events: auto;
}

.graph-bulk-action-bar[hidden] {
    display: none !important;
}

.graph-bulk-action-btn {
    padding: 6px 14px;
    font-size: 13px;
    border: 1px solid var(--borders);
    border-radius: 4px;
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
}

.graph-bulk-action-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.marquee-overlay {
    position: absolute;
    inset: 0;
    z-index: 40;
    pointer-events: none;
    display: none;
}

.marquee-overlay.is-active {
    display: block;
    pointer-events: auto;
    cursor: crosshair;
}

.marquee-overlay__rect {
    position: absolute;
    border: 2px dashed var(--accent);
    background: rgba(255, 107, 107, 0.12);
    pointer-events: none;
    box-sizing: border-box;
}

/* Radial quick menu — HTML overlay in #graphViewport (Plan 015 Phase 4) */
.radial-quick-menu {
    position: absolute;
    z-index: 200;
    pointer-events: none;
    width: 0;
    height: 0;
    display: none;
}

.radial-quick-menu.is-open {
    display: block;
    pointer-events: none;
    overflow: visible;
}

.radial-quick-menu__ring {
    position: relative;
    pointer-events: none;
}

.radial-quick-menu__hole {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 56px;
    height: 56px;
    margin-left: -28px;
    margin-top: -28px;
    border-radius: 50%;
    pointer-events: none;
}

.radial-quick-menu__wedge {
    position: absolute;
    margin: 0;
    padding: 0;
    border: 1px solid var(--borders);
    border-radius: 50%;
    background: rgba(45, 45, 45, 0.94);
    color: var(--text);
    cursor: pointer;
    pointer-events: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: filter 0.12s ease, background-color 0.12s ease;
}

.radial-quick-menu__wedge:hover,
.radial-quick-menu__wedge:focus-visible {
    filter: brightness(1.25);
    outline: 2px solid var(--accent);
    outline-offset: -2px;
    z-index: 1;
}

.radial-quick-menu__wedge-icon {
    font-size: 18px;
    line-height: 1;
    pointer-events: none;
    user-select: none;
}

/* Power menu (Plan 015 Phase 5) */
.power-menu {
    position: absolute;
    z-index: 55;
    min-width: 200px;
    max-width: 280px;
    max-height: calc(100vh - 16px);
    overflow-x: hidden;
    overflow-y: auto;
    padding: 6px 0;
    background: var(--surface, #2a2a2a);
    border: 1px solid var(--borders, #404040);
    border-radius: 6px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.45);
    display: none;
    pointer-events: auto;
}

.power-menu.is-open {
    display: block;
}

.power-menu__header {
    padding: 8px 12px 4px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text, #e0e0e0);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.power-menu__item--flyout-trigger::after {
    content: '›';
    float: right;
    opacity: 0.7;
}

/* Portaled visibility submenu (sibling of .power-menu in #graphViewport) */
.power-menu__flyout--portaled {
    display: none;
    position: absolute;
    z-index: 57;
    min-width: 180px;
    padding: 4px 0;
    background: var(--surface, #2a2a2a);
    border: 1px solid var(--borders, #404040);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    pointer-events: auto;
}

.power-menu__flyout--portaled.is-open {
    display: block;
}

.power-menu__flyout-bridge {
    position: absolute;
    z-index: 56;
    background: transparent;
    pointer-events: auto;
}

.power-menu__row--has-flyout.is-flyout-open .power-menu__item--flyout-trigger {
    background: rgba(77, 159, 255, 0.12);
}

.power-menu__item--current {
    font-weight: 600;
    color: var(--primary, #4d9fff);
}

.power-menu__item {
    display: block;
    width: 100%;
    padding: 8px 12px;
    border: none;
    background: transparent;
    color: var(--text, #e0e0e0);
    font-size: 13px;
    text-align: left;
    cursor: pointer;
}

.power-menu__item:hover,
.power-menu__item:focus-visible {
    background: rgba(77, 159, 255, 0.15);
    outline: none;
}

.power-menu__item--explore {
    font-weight: 500;
    color: var(--primary, #4d9fff);
}

.graph-tooltip.visible {
    opacity: 1;
}

.graph-tooltip .tooltip-title {
    font-weight: bold;
    margin-bottom: 4px;
}

.graph-tooltip .tooltip-value {
    color: #aaa;
    font-size: 12px;
}

/* ==================== Settings Modal Styles ==================== */

/* Settings Overlay - Similar structure to login overlay */
.settings-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.settings-overlay.show {
    display: flex;
}

.settings-modal {
    background-color: var(--ui-bg);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    width: 480px;
    max-width: 90vw;
    max-height: 85vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease-out;
}

.settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 20px 15px 20px;
    border-bottom: 1px solid var(--borders);
}

.settings-header h3 {
    margin: 0;
    color: var(--text);
    font-size: 18px;
}

.settings-content {
    padding: 20px;
}

.settings-section {
    margin-bottom: 20px;
}

.settings-section:last-child {
    margin-bottom: 0;
}

.settings-section h4 {
    margin: 0 0 15px 0;
    color: var(--text);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.force-sliders-hint {
    font-size: 12px;
    color: #888;
    margin: -8px 0 14px 0;
    line-height: 1.4;
}

.force-slider-row {
    display: grid;
    grid-template-columns: 1fr 3.2rem;
    grid-template-rows: auto auto;
    gap: 4px 10px;
    margin-bottom: 12px;
    align-items: center;
}

.force-slider-row label {
    grid-column: 1 / -1;
    font-size: 13px;
    color: var(--text);
    cursor: pointer;
}

.force-slider-row input[type="range"] {
    grid-column: 1;
    width: 100%;
    min-width: 0;
}

.force-slider-value {
    grid-column: 2;
    text-align: right;
    font-variant-numeric: tabular-nums;
    font-size: 12px;
    color: #aaa;
}

/* Mode Selection - Radio Button Cards */
.mode-selection {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mode-option {
    cursor: pointer;
}

.mode-option input[type="radio"] {
    display: none;
}

.mode-label {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 15px;
    background-color: var(--background);
    border: 2px solid var(--borders);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.mode-option input[type="radio"]:checked + .mode-label {
    border-color: var(--primary);
    background-color: rgba(77, 159, 255, 0.1);
}

.mode-option:hover .mode-label {
    border-color: var(--primary);
}

.mode-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.mode-name {
    font-weight: 600;
    color: var(--text);
    font-size: 15px;
}

.mode-description {
    font-size: 12px;
    color: #888;
    display: block;
    margin-top: 2px;
}

/* VR Toggle Row */
.vr-toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 15px;
    background-color: var(--background);
    border: 1px solid var(--borders);
    border-radius: 8px;
}

.vr-toggle-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: var(--text);
    cursor: pointer;
}

.vr-hint {
    font-size: 12px;
    color: #888;
    margin: 8px 0 0 0;
    padding-left: 4px;
}

/* VR Toggle disabled state */
#vrToggleContainer.disabled .vr-toggle-row {
    opacity: 0.5;
    cursor: not-allowed;
}

#vrToggleContainer.disabled .vr-toggle-label {
    cursor: not-allowed;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--borders);
    border-radius: 26px;
    transition: 0.3s;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    border-radius: 50%;
    transition: 0.3s;
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--primary);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(22px);
}

.toggle-switch input:disabled + .toggle-slider {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Settings Button - Enhanced with active state */
.settings-button:hover {
    background-color: #777;
}

.settings-button:active {
    background-color: #555;
}

/* Non-blocking API error banner (Plan 017 Phase 6 / E2E #api-error-banner) */
.api-error-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10000;
    padding: 10px 16px;
    background-color: var(--accent);
    color: #fff;
    font-size: 14px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}

.api-error-banner[hidden] {
    display: none;
}