:root {
    --page-bg: #f6FFFF;
    /* page background color */
    --primary: #009688;
    --secondary1: #FAB73B;
    --secondary2: #7E57C2;
    --accent: #37474F;
    --super-color: #8ac9f3;
    --ultra-color: #f3de8a;
    --mega-color: #e98f85;
    --idle-color: #e5e7e9;
    --white: var(--page-bg);
    /* keep references using --white but point to page background */
    --header-bg: var(--accent);
    --text-color: var(--accent);
    --accent-color: var(--secondary1);
    --success-color: var(--primary);
    --failure-color: #FF00FF;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    --element-time-bg: var(--secondary2);
    --tooltip-bg: var(--accent);
}

html {
    font-size: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

@keyframes blink-red-border {
    50% {
        border-color: #ff9a9a;
    }
}

@keyframes precedence-pulse {
    0% {
        stroke: var(--failure-color);
        stroke-width: 6px;
        opacity: 0.9;
    }
    50% {
        stroke: #ff9a9a;
        stroke-width: 3.5px;
        opacity: 0.7;
    }
    100% {
        stroke: var(--failure-color);
        stroke-width: 6px;
        opacity: 0.9;
    }
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--white);
    color: var(--text-color);
    height: 100vh;
    overflow: hidden;
}

.app-container {
    display: flex;
    height: 100vh;
}

/* Video Container Styling */
.video-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: 25px;
    margin-bottom: 15px;
    width: 100%;
}

/* The Video Player Itself */
.video-container video {
    width: 100%;
    max-width: 800px; /* Prevents it from getting too huge on large screens */
    height: auto;
    display: block;
    object-fit: contain;
    border-radius: 8px; 
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2); 
    background-color: #000;
}

.video-container video:full-screen,
.video-container Video:-webkit-full-screen,
.video-container video:-moz-full-screen,
.video-container video:-ms-fullscreen {
    width: 100% !important;
    height: 100% !important;
    max-width: none !important;
    max-height: none !important;
    object-fit: contain !important;
    background-color: #000 !important;
    margin: 0 !important;
    border-radius: 0 !important;
}

.sidebar {
    width: clamp(280px, 15vw, 400px);
    background-color: var(--white);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    transition: width 0.3s ease;
    z-index: 10;
    position: relative;
}

.sidebar.collapsed {
    width: 0;
    box-shadow: none;
}

.sidebar-header {
    display: flex;
    align-items: center;
    padding: 1rem;
    background-color: var(--header-bg);
    color: var(--white);
    flex-shrink: 0;
    position: relative;
    height: 58px;
}

#right-sidebar .sidebar-header {
    justify-content: flex-end;
}

.sidebar-header h3 {
    font-size: 1.1rem;
    white-space: nowrap;
    transition: opacity 0.3s ease;
}

.sidebar-content {
    padding: 1rem;
    overflow-y: auto;
    flex-grow: 1;
    transition: opacity 0.3s ease;
}

.sidebar.collapsed .sidebar-header h3,
.sidebar.collapsed .sidebar-content {
    opacity: 0;
    pointer-events: none;
}

.toggle-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: 1px solid transparent;
    color: var(--white);
    font-size: 1.8rem;
    cursor: pointer;
    z-index: 20;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

#left-sidebar .toggle-btn {
    right: 1rem;
}

#right-sidebar .toggle-btn {
    left: 1rem;
}

.sidebar.collapsed .toggle-btn {
    background-color: var(--header-bg);
    width: 25px;
    height: 60px;
    top: 60px;
    transform: none;
    color: white;
}

#left-sidebar.collapsed .toggle-btn {
    right: 4px;
    border-radius: 0 8px 8px 0;
}

#right-sidebar.collapsed .toggle-btn {
    left: -29px;
    border-radius: 8px 0 0 8px;
}

.inv-metric {
    display: none
}


#main-content {
    background-color: var(--page-bg);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.main-header {
    background-color: var(--header-bg);
    padding: 0 1rem;
    box-shadow: var(--shadow);
    z-index: 5;
}

.main-header h1 {
    font-size: 1.5rem;
    text-align: center;
    padding: 0.5rem 0;
    color: var(--white);
}

#tabs {
    display: flex;
    justify-content: center;
    color: var(--white);
}

.tab-btn {
    padding: 0.9rem 1.6rem;
    color: var(--idle-color);
    cursor: pointer;
    font-size: 1rem;
    font-weight: bold;
    border-radius: 0.8rem 0.8rem 0 0;
    margin-right: 0.25rem;
    border-bottom: 3px solid transparent;
    transition: all 0.2s ease;
    opacity: 0.75;
    transition: opacity 0.2s ease, transform 0.1s ease;
    text-shadow: 3px 3px 5px var(--accent);
}

.tab-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    opacity: 1;
}

.tab-btn.active {
    color: var(--light-text);
    transform: translateY(-0.25rem);
    opacity: 1.0;
    border-bottom-width: 0.25rem;
    margin-bottom: -0.2rem;
}

.tab-btn[data-tab="overview"],
.tab-btn[data-tab="precedence"] {
    background-color: var(--secondary1);
}

.tab-btn.active[data-tab="overview"],
.tab-btn.active[data-tab="precedence"] {
    border-bottom-color: var(--primary);
}

.tab-btn[data-tab="schedule"],
.tab-btn[data-tab="efficiency"],
.tab-btn[data-tab="layout"] {
    background-color: var(--primary);
}

.tab-btn.active[data-tab="schedule"],
.tab-btn.active[data-tab="efficiency"],
.tab-btn.active[data-tab="layout"] {
    border-bottom-color: var(--secondary2);
}

.tab-btn[data-tab="profit"],
.tab-btn[data-tab="investment"],
.tab-btn[data-tab="location"] {
    background-color: var(--secondary2);
}

.tab-btn.active[data-tab="profit"],
.tab-btn.active[data-tab="investment"],
.tab-btn.active[data-tab="location"] {
    border-bottom-color: var(--secondary1);
}

#svg-container {
    flex-grow: 1;
    background-color: var(--page-bg);
    margin: 1rem;
    border-radius: 8px;
    box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.06);
}

.workstation {
    margin-bottom: 0.5rem;
    margin-top: 0.5rem;
}

.workstation-title {
    font-weight: bold;
    margin-bottom: 0.1rem;
    padding-bottom: 0.5rem;
    text-align: right;
}

.workstation-list {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.element-row {
    margin-bottom: 6px;
    font-size: 0.85rem;
}

.element-bar-wrapper {
    width: 100%;
    display: flex;
    justify-content: flex-end;
}

.element-time-bar {
    /* Refactored from script.js: uses --accent for bg/border and 4px radius */
    background-color: var(--accent);
    border: 2px solid var(--accent);
    height: 18px;
    border-radius: 4px;
    min-width: 1px;
    position: relative;
    color: var(--white);
    text-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    padding: 0 3px;
}

.labor-time-bar {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 100%;
    transform-origin: right;
    background-color: var(--white);
    border-radius: 3px;
    z-index: 5;
}

.labor-bar-text {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 100%;
    color: var(--white);
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    z-index: 10;
}

.control-section,
.output-section {
    margin-top: 0.3rem;
    margin-bottom: 0.3rem;
}

h4 {
    margin-top: 0.5rem;
    padding-bottom: 0.5rem;
    color: var(--secondary2);
}

.control-section h4,
.output-section h4 {
    margin-bottom: 0.3rem;
    font-size: 1.1rem;
}

.input-group {
    margin-bottom: 0.3rem;
    display: grid;
    grid-template-columns: 1fr 0.5fr;
    justify-content: space-between;
    align-items: center;
}

.input-group-slider {
    margin-bottom: 0.5rem;
    display: grid;
    grid-template-columns: 0.45fr 0.55fr;
    justify-content: space-between;
    align-items: center;
    flex-grow: 1;
}

.input-group label,
.input-group-slider label {
    display: inline;
    font-size: 0.9rem;
    margin-right: 0.4rem;
    opacity: 0.9;
}

input[type="number"],
input[type="range"] {
    width: 100%;
    text-align: right;
    font-size: 0.9rem;
    color: var(--accent);
    padding: 0.2rem;
    margin-top: 0.3rem;
    margin-bottom: 0.2rem;
    border-radius: 4px;
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
    cursor: pointer;
    height: 1.5rem;
}

input[type="range"]::-webkit-slider-runnable-track {
    background: rgba(0, 0, 0, 0.25);
    height: 0.4rem;
    border-radius: 10px;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    margin-top: -6px;
    background-color: var(--secondary2);
    height: 1rem;
    width: 1rem;
    border-radius: 50%;
    border-color:rgba(0, 0, 0, 0.06);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.fin-grid {
    display: grid;
    grid-template-columns: minmax(44px, 0.4fr) minmax(60px,1fr) minmax(60px,1fr) minmax(60px,1fr);
    gap: 3px;
    align-items: center;
}

.fin-grid span {
    font-weight: bold;
    font-size: 0.9rem;
    opacity: 0.9;
    text-align: center;
}

.fin-grid label {
    display: inline;
    font-size: 0.9rem;
    margin-right: 0.4rem;
    opacity: 0.9;
}

.output-grid {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.5rem 1rem;
    font-size: 0.9rem;
    opacity: 0.9;
}

.output-grid > *:nth-child(even) {
    text-align: right;
    font-weight: bold;
}

.status {
    padding: 0.75rem;
    text-align: center;
    font-weight: bold;
    border-radius: 4px;
    margin-bottom: 1rem;
}

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

.status.failure {
    background-color: var(--failure-color);
    color: white;
}

.element-row.precedence-error .element-time-bar {
    border: 3px solid var(--failure-color);
    border-radius: 5px;
    padding: 2px;
    margin-bottom: 4px;
    animation: blink-red-border 1.2s ease-in-out infinite;
}

.overview-container {
    padding: 0.75rem;
    width: 100%;
    line-height: 1.5;
    color: var(--text-color);
    overflow-y: auto;
    max-height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-gap: 0.75rem;
    align-content: start;
    font-size: clamp(0.8rem, 1.5vw, 1rem);
    /* Responsive base font size */
}

.overview-container h2 {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--header-bg);
    margin-bottom: 0.75rem;
    font-weight: 600;
    padding-bottom: 0.4rem;
    border-bottom: 2px solid var(--accent-color);
    width: 100%;
    font-size: clamp(1.3rem, 2.5vw, 1.6rem);
    /* Responsive H2 */
}

.overview-section {
    background: var(--sidebar-bg);
    border-radius: 8px;
    padding: 1rem;
    box-shadow: var(--shadow);
    transition: all 0.2s ease;
    min-height: 130px;
    display: flex;
    flex-direction: column;
}

.overview-section:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transform: translateY(-1px);
}

.overview-intro {
    grid-column: 1 / -1;
    margin-bottom: 1rem;
}

.overview-section h3 {
    color: var(--header-bg);
    margin-bottom: 0.6rem;
    font-weight: bold;
    padding-bottom: 0.4rem;
    position: relative;
    font-size: clamp(1rem, 2vw, 1.2rem);
    /* Responsive H3 */
}

.overview-section h3::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--accent-color);
}

.overview-section p,
.overview-section ul li,
.step-content,
.tip-content {
    font-size: clamp(0.75rem, 1.4vw, 0.95rem);
    /* Responsive paragraph/list text */
}

.overview-section p {
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.overview-section ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 0.5rem;
    flex-grow: 1;
}

.overview-section ul li {
    margin: 0.3rem 0;
    padding: 0.25rem 0.5rem 0.25rem 1.2rem;
    position: relative;
    line-height: 1.3;
    border-left: 2px solid transparent;
    transition: all 0.2s ease;
}

.overview-section ul li::before {
    content: "•";
    color: var(--accent-color);
    position: absolute;
    left: 0.3rem;
    top: 45%;
    transform: translateY(-50%);
    font-weight: bold;
    font-size: 1.2rem;
    line-height: 1;
}

.overview-section ul li strong {
    color: var(--header-bg);
    font-weight: 600;
}

.overview-desc {
    text-align: center;
    color: #555;
    font-style: italic;
    margin-bottom: 0.5rem;
    padding: 0.75rem;
    background: rgba(52, 152, 219, 0.05);
    border-left: 3px solid var(--accent-color);
    border-radius: 4px;
}

.overview-section ul li:hover {
    background-color: rgba(52, 152, 219, 0.08);
    border-left-color: var(--accent-color);
    transform: translateX(0.2rem);
}

.step-list {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-top: 0.5rem;
}

.step-item {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    padding: 0.5rem;
    background: rgba(46, 204, 113, 0.05);
    border-radius: 4px;
    border-left: 3px solid var(--success-color);
}

.step-number {
    background: var(--success-color);
    color: white;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: bold;
    flex-shrink: 0;
    margin-top: 1px;
}

.step-content strong {
    color: var(--header-bg);
}

.tips-list {
    display: flex;
    flex-direction: column;
    gap: 0.22rem;
    margin-top: 0.32rem;
}

.tip-item {
    display: flex;
    align-items: flex-start;
    gap: 0.42rem;
    padding: 0.32rem;
    background: rgba(155, 89, 182, 0.05);
    border-radius: 4px;
    border-left: 3px solid #9b59b6;
}

.tip-icon {
    font-size: 0.82rem;
    flex-shrink: 0;
    margin-top: 1px;
}

.tip-content strong {
    color: var(--header-bg);
}

.tech-doc-link {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.75rem 1.5rem;
    background-color: var(--primary);
    color: var(--white);
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    text-align: center;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.tech-doc-link:hover {
    background-color: var(--secondary1);
    transform: translateY(-2px);
}


@media (max-width: 1200px) {
    .overview-container {
        grid-template-columns: 1fr;
        padding: 0.75rem;
    }
}

/* ============================================= */
/* == Tooltip and Visualization Styles        == */
/* ============================================= */

/* CSS-only Tooltip for Key Terms */
[data-tooltip] {
    position: relative;
    cursor: help;
    border-bottom: 1px dotted var(--accent);
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    background-color: var(--tooltip-bg);
    color: var(--white);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 100;
    font-weight: normal;
    /* Tooltip text should not be bold */
}

[data-tooltip]:hover::after {
    opacity: 1;
    transform: translateX(-50%) translateY(-12px);
}


/* General D3 Tooltip Styles */
.d3-tooltip {
    position: absolute;
    z-index: 9999;
    pointer-events: none;
    padding: 8px 12px;
    background: var(--tooltip-bg);
    color: var(--white);
    border-radius: 8px;
    font: 12px/1.4 sans-serif;
    box-shadow: 0 4px 12px var(--shadow);
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
    text-align: left;
    border: 0px;
}

.d3-tooltip .tooltip-header {
    font-weight: 800;
    font-size: 13px;
    margin: 0 0 6px 0;
    padding-bottom: 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
}

.d3-tooltip .tooltip-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
}

.d3-tooltip .tooltip-key {
    opacity: .85;
}

.vis-panel .axis text {
    font-size: 12px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-weight: 500;
    fill: #2d3748;
}

.vis-panel .axis path,
.vis-panel .axis line {
    stroke: var(--accent);
}

.vis-panel .grid-major line {
    stroke: var(--idle-color);
    stroke-width: 0.75px;
}

.vis-panel .grid-minor line {
    stroke: var(--accent);
    stroke-dasharray: 2, 2;
}

.vis-panel .grid-major path,
.vis-panel .grid-minor path {
    display: none;
}

.crosshair {
    stroke: var(--accent);
    stroke-dasharray: 4 4;
}

.crosshair-h {
    stroke: var(--accent);
    stroke-dasharray: 4 4;
    opacity: .6;
}

.line-profit {
    stroke: var(--primary);
}

.line-margin {
    stroke: var(--secondary2);
}

.lost-profit-area {
    fill: var(--failure-color);
    opacity: .4;
}

.point-now {
    fill: var(--failure-color);
    stroke: var(--white);
    stroke-width: 2;
}

.breakdown-border {
    fill: none;
    stroke: var(--accent);
    stroke-width: 2;
    stroke-dasharray: 6 6;
}

.pie-title {
    font-size: 13px;
    font-weight: 800;
    text-anchor: middle;
    fill: var(--accent);
}

.vis-panel .axis-label {
    font-size: 14px;
    font-weight: 600;
    fill: var(--accent);
}

/* --- Modern Toggle Switch Styles --- */
.switch {
    position: relative;
    display: inline-block;
    width: clamp(44px, 3.5vw, 55px);
    height: clamp(24px, 1.9vw, 30px);
    flex-shrink: 0;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--secondary2);
    transition: .4s;
    border-radius: 100px;
}

.slider:before {
    position: absolute;
    content: "";
    --handle-size: 70%;
    width: calc(0.8*clamp(24px, 1.9vw, 30px));
    height: calc(0.8*clamp(24px, 1.9vw, 30px));
    left: 10%;
    top: 50%;
    transform: translateY(-50%);

    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked+.slider {
    background-color: var(--success-color);
}

input:checked+.slider:before {
    transform: translate(80%, -50%);
}

/* Legend Styles for Standardization */
.legend-box {
    fill: var(--white);
    stroke: var(--accent);
    stroke-width: 1;
}

.legend-title {
    font-weight: bold;
    font-size: 16px;
    fill: var(--accent);
    text-anchor: middle;
}

.legend-item-text {
    font-size: 12px;
    fill: var(--accent);
}

/* Makes the new label interactive for the tooltip */
#qualityYieldLabel {
    cursor: help;
    border-bottom: 1px dotted var(--accent);
    display: inline-block; /* Makes border-bottom fit the text */
}

/* Styles for the new breakdown tooltip */
.quality-breakdown-tooltip .tt-title {
    font-size: 14px;
    font-weight: bold;
    margin-bottom: 6px;
    padding-bottom: 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
}

.quality-breakdown-tooltip .tooltip-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    font-size: 12px;
    line-height: 1.4;
}

    .quality-breakdown-tooltip .tooltip-row span:first-child {
        opacity: 0.8;
    }

    .quality-breakdown-tooltip .tooltip-row span:last-child {
        font-weight: bold;
        color: var(--failure-color); /* Shows quality loss as red */
    }

.quality-breakdown-tooltip .tt-total span:last-child {
    color: var(--white); /* Reverts the total yield color to white */
}

.quality-breakdown-tooltip hr {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    margin: 4px 0;
}

/* ============================================= */
/* == Custom Scrollbars (from script.js)     == */
/* ============================================= */

/* Target sidebars and SVG area for Firefox */
#left-sidebar,
#right-sidebar,
#svg-container {
    scrollbar-width: thin;
    scrollbar-color: var(--accent) transparent;
}

/* Target sidebars and SVG area for Webkit browsers (Chrome, Safari, etc.) */
#left-sidebar::-webkit-scrollbar,
#right-sidebar::-webkit-scrollbar,
#svg-container::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

#left-sidebar::-webkit-scrollbar-track,
#right-sidebar::-webkit-scrollbar-track,
#svg-container::-webkit-scrollbar-track {
    background: transparent;
}

#left-sidebar::-webkit-scrollbar-thumb,
#right-sidebar::-webkit-scrollbar-thumb,
#svg-container::-webkit-scrollbar-thumb {
    background-color: var(--accent);
    border-radius: 10px;
    border: 2px solid transparent;
    background-clip: content-box;
}

#left-sidebar::-webkit-scrollbar-thumb:hover,
#right-sidebar::-webkit-scrollbar-thumb:hover,
#svg-container::-webkit-scrollbar-thumb:hover {
    background-color: var(--primary);
}

/* ============================================= */
/* == D3 Tooltip Overrides (from script.js)   == */
/* ============================================= */

.d3-tooltip.pert-tooltip {
    position: fixed;
}

.d3-tooltip.workstation-tooltip {
    pointer-events: none;
    z-index: 9999;
}

/* ============================================= */
/* == Overview Tab (from script.js)           == */
/* ============================================= */

.overview-error-message {
    padding: 2rem;
    text-align: center;
}

/* ============================================= */
/* == Simulation Controls (from script.js)    == */
/* ============================================= */
/* Used for Play/Pause/Reset buttons on Layout/Schedule tabs */

.sim-control-btn {
    cursor: pointer;
}

.sim-control-btn rect {
    fill: var(--accent);
    /* `rx` was removed as it's an SVG attribute */
}

.sim-control-btn text {
    text-anchor: middle;
    fill: var(--secondary1);
    font-size: 14px;
}

/* ============================================= */
/* == Precedence Tab (from Precedence.js)     == */
/* ============================================= */


/* --- PERT Node Components --- */
/* The invisible circle used for hit detection and dragging */
.pert-node-hitbox {
    fill: transparent;
    pointer-events: all;
}

/* The pie chart slices */
.__pert_pie {
    stroke: var(--white);
    stroke-width: 0.9px;
}

/* The background circle behind the node ID text */
.__pert_label_bg {
    pointer-events: none;
    fill: var(--white);
    /* --white is an alias for --page-bg */
    fill-opacity: 0.95;
    stroke: var(--accent);
    stroke-opacity: 0.2;
    stroke-width: 1;
}

/* The text (ID) for each node */
#precedence-panel .precedence-node-text {
    text-anchor: middle;
    font-family: sans-serif;
    font-weight: 800;
    fill: var(--accent);
    stroke: var(--white);
    stroke-width: 4px;
    paint-order: stroke;
    pointer-events: none;
}

/* --- Build Ratios Legend --- */
#precedence-legend {
    pointer-events: none;
}

#precedence-legend g>text[text-anchor="middle"] {
    text-anchor: middle;
    font-size: 12px;
    fill: var(--accent);
}

/* --- Task Flow (DAG) Legend Components --- */
/* The arrow from A to B */
.dag-legend-arrow {
    stroke: var(--accent);
    stroke-width: 2px;
    marker-end: url(#arrowhead);
}

/* The "A" and "B" text inside the legend nodes */
#precedence-panel .dag-legend-node-text {
    text-anchor: middle;
    /* `dy` was removed as it's an SVG attribute */
    fill: var(--accent);
    font-weight: bold;
    font-size: 12px;
}

/* The "K&W Diagram" switch text */
#precedence-panel .dag-legend-switch-text {
    font-size: 14px;
    font-weight: bold;
    fill: var(--accent);
}

/* The grey track for the toggle switch */
#precedence-panel .dag-legend-switch-rect {
    fill: #ccc;
}

/* The white handle for the toggle switch */
#precedence-panel .dag-legend-switch-handle {
    fill: white;
}

/* --- New Keyframe for Bottleneck Pie/Summary Stroke --- */
@keyframes blink-stroke {

    0%,
    100% {
        stroke: var(--accent);
        /* Normal stroke color */
        stroke-width: 1.5px;
    }

    50% {
        stroke: var(--failure-color);
        /* Blinking color */
        stroke-width: 3.5px;
    }
}

/* --- New Keyframe for Over-Idle Clock Face --- */
@keyframes blink-face {

    0%,
    100% {
        stroke: var(--idle-color);
        /* Clock face normal stroke */
        stroke-width: 2px;
    }

    50% {
        stroke: var(--failure-color);
        /* Blinking color */
        stroke-width: 3.5px;
    }
}

/* --- Dedicated Classes for Blinking Elements --- */
.bottleneck-pie-blink {
    animation: blink-stroke 1.4s ease-in-out infinite;
}

.over-idle-clock-blink {
    animation: blink-face 1.4s ease-in-out infinite;
}

.sim-loading-text {
    color: var(--accent);
    font-weight: bold;
    margin: 0;
    padding: 2px 0;
}

.sim-placeholder-text {
    margin: 0;
    padding: 2px 0;
}

.sim-error-text {
    color: var(--failure-color);
    font-weight: bold;
}

.overlay {
    fill: none;
    pointer-events: all;
}

.chart-error-message {
    color: var(--failure-color);
    font-weight: bold;
    font-size: 12px;
    line-height: 1.4;
    white-space: pre-wrap;
    padding: 10px;
    border: 2px solid var(--failure-color);
    background-color: rgba(255, 200, 200, 0.95);
    max-height: 100%;
    overflow-y: auto;
}

/* ============================================= */
/* == Efficiency Tab (from Efficiency.js)     == */
/* ============================================= */

/* --- Workstation Elements --- */
.ws-heading {
    text-anchor: middle;
    font-weight: bold;
    fill: var(--accent);
}

.slice {
    stroke: var(--accent);
    stroke-width: 1.5px;
}

.pie-text-bg {
    fill: var(--white);
    stroke: var(--accent);
    stroke-width: 1.5px;
}

.pie-text {
    text-anchor: middle;
    font-weight: bold;
    fill: var(--accent);
}

/* --- Clock Elements --- */
.clock-face {
    fill: var(--accent);
    stroke: var(--idle-color);
}

.clock-tick {
    stroke: var(--idle-color);
}

.clock-center-pin {
    fill: var(--idle-color);
}

.clock-hand {
    stroke: var(--secondary1);
    stroke-linecap: round;
}

.clock-idle-text {
    text-anchor: middle;
    font-weight: bold;
    fill: var(--accent);
}

/* --- Summary Panel Elements --- */
.summary-border {
    fill: none;
    stroke: var(--accent);
    stroke-width: 2px;
    stroke-dasharray: 5, 5;
}

.summary-pie-slice {
    stroke: var(--accent);
    stroke-width: 1.5px;
}

.summary-pie-text-bg {
    fill: var(--white);
    stroke: var(--accent);
    stroke-width: 1.5px;
}

.summary-pie-text {
    text-anchor: middle;
    font-weight: bold;
    fill: var(--accent);
}

/* --- Summary Stats & Charts --- */
.efficiency-tooltip {
    position: absolute;
    pointer-events: none;
    background: var(--tooltip-bg);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    opacity: 0;
    transition: opacity 0.2s;
}

.box-plot-center-line {
    stroke: var(--accent);
    stroke-width: 3px;
}

.box-plot-whisker {
    stroke: var(--accent);
    stroke-width: 3px;
    stroke-linecap: round;
}

.box-plot-box {
    stroke: var(--accent);
    stroke-width: 4px;
    fill: url(#box-gradient);
}

.box-plot-median-line {
    stroke: var(--secondary1);
    stroke-width: 5px;
    stroke-linecap: round;
}

.box-plot-tooltip-receiver {
    fill: transparent;
}

.bar-chart-axis .domain {
    stroke: var(--accent);
}

.bar-chart-axis .tick line {
    stroke: var(--accent);
}

.bar-chart-axis .tick text {
    fill: var(--accent);
    font-weight: 600;
}

.bar-chart-bar {
    fill: url(#box-gradient);
    stroke: var(--accent);
    stroke-width: 1.8px;
}

.summary-title {
    text-anchor: middle;
    font-weight: bold;
    fill: var(--accent);
}

.summary-label {
    text-anchor: middle;
    font-weight: bold;
    fill: var(--accent);
}

.summary-value {
    text-anchor: middle;
    font-weight: bold;
    fill: var(--failure-color);
}

/* ============================================= */
/* == Layout Tab (from Layout.js)             == */
/* ============================================= */

/* --- General Layout Elements --- */
.layout-invalid-text {
    text-anchor: middle;
    fill: var(--failure-color);
}

.layout-no-data-text {
    text-anchor: middle;
    fill: var(--accent);
}

/* --- Clock Elements --- */
.layout-clock-face {
    fill: var(--accent);
    stroke: var(--idle-color);
    stroke-width: 2px;
}

.layout-clock-tick {
    stroke: var(--idle-color);
}

.layout-clock-hand {
    stroke: var(--secondary1);
    stroke-linecap: round;
}

.layout-clock-hour-hand {
    stroke-width: 4px;
}

.layout-clock-minute-hand {
    stroke-width: 2px;
}

.layout-clock-center-pin {
    fill: var(--idle-color);
}

/* --- Speed Slider Elements --- */
.layout-speed-slider-track {
    stroke: var(--accent);
    stroke-width: 4px;
    stroke-linecap: round;
}

.layout-speed-slider-handle {
    fill: var(--secondary1);
    stroke: var(--white);
    stroke-width: 2px;
}

.layout-speed-slider-interaction {
    fill: transparent;
    cursor: grab;
    touch-action: none;
}

.layout-speed-slider-label {
    text-anchor: middle;
    font-size: 0.7rem;
    fill: var(--accent);
}

/* --- Animation Control Buttons --- */
/* Uses .sim-control-btn from Efficiency tab refactor for consistency */
.layout-play-pause-btn,
.layout-reset-btn,
.layout-skip-btn {
    cursor: pointer;
}

.layout-play-pause-btn text,
.layout-reset-btn text,
.layout-skip-btn text {
    text-anchor: middle;
    fill: var(--white);
}

.layout-play-pause-btn text {
    font-size: 14px;
}

.layout-reset-btn text,
.layout-skip-btn text {
    font-size: 13px;
}

.layout-speedo-tick-label {
    text-anchor: middle;
    font-size: 12px;
    font-weight: 700;
    fill: var(--accent);
}

.layout-speedo-needle {
    stroke: var(--accent);
    stroke-width: 4px;
    stroke-linecap: round;
}

.layout-speedo-center-pin {
    fill: var(--accent);
    stroke: var(--white);
    stroke-width: 2px;
}

.layout-speedo-readout {
    text-anchor: middle;
    font-weight: bold;
    fill: var(--accent);
}

.layout-speedo-units {
    text-anchor: middle;
    fill: var(--accent);
}

/* --- Finished Goods Bin --- */
.layout-bin-rect {
    fill: var(--idle-color);
    stroke: var(--accent);
    stroke-width: 1px;
}

.layout-bin-title {
    text-anchor: middle;
    font-size: 14px;
    font-weight: bold;
    fill: var(--accent);
}

/* --- Legend --- */
/* Uses .legend-box, .legend-title, .legend-item-text from shared styles */
.layout-legend-grid-square {
    fill: var(--white);
    stroke: var(--accent);
}

/* --- Background Grid --- */
.layout-grid-line {
    stroke: var(--accent);
    stroke-width: 0.2px;
    opacity: 0.1;
}

.layout-element-hover-path {
    stroke: transparent;
    stroke-width: 4px;
    /* Wider hover area */
    pointer-events: stroke;
    stroke-linejoin: round;
}

.layout-element-accent-border {
    stroke: var(--accent);
    stroke-width: 2.25px;
    pointer-events: none;
    stroke-linejoin: round;
}

.layout-element-color-path {
    /* stroke is dynamic */
    stroke-width: 1.75px;
    pointer-events: none;
    stroke-linejoin: round;
}

.layout-workstation-border {
    fill: none;
    stroke: var(--accent);
    stroke-width: 0.3px;
    opacity: 0.6;
    stroke-linejoin: round;
}

/* --- Product Shapes --- */
.layout-product-shape {
    /* fill is dynamic based on model */
    /* stroke is dynamic based on model */
    stroke-width: 0.2px;
    pointer-events: none;
}

/* ============================================= */
/* == Profit Tab Styles                       == */
/* ============================================= */

.profit-line-profit {
    /* Optimal profit line */
    stroke: var(--primary);
    fill: none;
    stroke-width: 2.6px;
}

.profit-line-margin {
    /* Optimal margin line */
    stroke: var(--secondary2);
    fill: none;
    stroke-width: 2.6px;
}

.profit-connector-line {
    /* Line connecting optimal to current point */
    stroke: var(--accent);
    stroke-width: 1.5px;
}

@keyframes blink-failure-stroke {
    0%, 100% {
        stroke: var(--failure-color);
        stroke-width: 5px;
        stroke-opacity: 1;
    } 50% {
        stroke: #ff9a9a;
        stroke-width: 2px;
        stroke-opacity: 0.4;
    }
}

.profit-pie-border.blinking-failure {
    animation: blink-failure-stroke 1.5s ease-in-out infinite;
}

.profit-pie-border {
    fill: none;
    pointer-events: none;
}

.profit-pie-slice {
    /* Pie chart slices */
    stroke: var(--accent);
    stroke-width: 0.125rem;
}

.profit-bar-baseline {
    /* Zero line on bar chart */
    stroke: var(--accent);
    stroke-width: 1.5px;
    stroke-dasharray: 3, 3;
}

.profit-bar {
    /* Bars in the bottom chart */
    stroke: var(--accent);
    stroke-width: 1.5px;
    /* fill, rx handled by JS */
}

/* ============================================= */
/* == INVESTMENT Tab (from investment.js)         == */
/* ============================================= */

#investment-panel .inv-container {
    display: flex;
    height: 100%;
    font-family: sans-serif;
    background: var(--white);
}

#investment-panel .inv-input-column {
    flex: 0 0 320px;
    padding: 15px;
    background: var(--white);
    border-right: 1px solid #ddd;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

#investment-panel .inv-results-column {
    flex-grow: 1;
    padding: 15px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

#investment-panel .inv-column-title {
    text-align: center;
    margin: 0 0 15px 0;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--secondary2);
    color: var(--accent);
    font-size: clamp(16px, 1.2vw, 18px);
    /* Dynamic Font */
}

#investment-panel .inv-inputs {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

#investment-panel .inv-input-group {
    border: 1px solid var(--idle-color);
    border-radius: 6px;
    padding: 12px;
    background: var(--white);
}

#investment-panel .inv-group-header {
    font-weight: bold;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--idle-color);
    padding-bottom: 4px;
    color: var(--accent);
    font-size: clamp(13px, 1vw, 15px);
    /* Dynamic Font */
}

#investment-panel .inv-group-subheader {
    font-weight: normal;
    color: var(--idle-color);
    margin-top: 2px;
    font-size: clamp(10px, 0.7vw, 11px);
    /* Dynamic Font */
}

/* --- Correct Investment Panel Row Layout --- */

/* This targets the <div> that wraps EACH label/input pair. */
#investment-panel .inv-input-group>div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin-bottom: 8px;
    /* Restores the space between rows */
}

/* Styles the text label. */
#investment-panel .inv-input-group label {
    width: 66.66%;
    /* Default 2/3 width */
    padding-right: 1rem;
    /* Consistent spacing */
    white-space: nowrap;
    color: #555;
    font-size: clamp(12px, 0.9vw, 14px);
    /* Dynamic Font */
}

/* Styles ALL inputs and selects. */
#investment-panel .inv-input-column input,
#investment-panel .inv-input-column select {
    width: 33.33%;
    /* Default 1/3 width */
    box-sizing: border-box;
    padding: 3px;
    border: 1px solid #ccc;
    border-radius: 4px;
    text-align: right;
    font-size: clamp(12px, 0.9vw, 14px);
    /* Dynamic Font */
}

/* Exception for the MACRS row for a 50/50 split. */
#investment-panel .inv-input-group div:has(#inv-macrsClass)>label {
    width: 40%;
}

#investment-panel .inv-input-group div:has(#inv-macrsClass)>select {
    width: 60%;
}

#investment-panel .inv-p50-display,
#investment-panel .inv-ci-display {
    font-size: clamp(12px, 0.9vw, 14px);
    /* Dynamic Font */
}

#investment-panel .inv-p50-display span:last-child {
    font-weight: bold;
    color: #34495e;
    padding: 6px;
    font-size: clamp(12px, 0.9vw, 14px);
}

#investment-panel .inv-ci-display {
    font-size: 12px;
    text-align: right;
    color: #34495e;
    font-weight: bold;
    padding: 4px 0;
}

#investment-panel .inv-divider {
    border: none;
    border-top: 1px dashed #ccc;
    margin: 8px 0;
}

#investment-panel .inv-analysis-controls {
    margin-top: auto;
    padding-top: 10px;
    border-top: 1px solid #eee;
    background: var(--white);
}

#investment-panel .inv-button-group {
    display: flex;
    width: 100%;
    border-radius: 6px;
    overflow: hidden;
}

#investment-panel .inv-button-group button {
    flex-grow: 1;
    padding: 6px;
    font-weight: bold;
    border: 1px solid #ccc;
    background-color: #f0f0f0;
    color: #555;
    cursor: pointer;
    transition: background-color 0.2s;
    font-size: clamp(12px, 0.9vw, 14px);
    /* Dynamic Font */
}

#investment-panel .inv-button-group button.active {
    background-color: var(--secondary2);
    color: white;
    border-color: var(--secondary2);
}

#investment-panel .inv-button-group button:not(.active):hover {
    background-color: #e0e0e0;
}

#investment-panel #inv-results-display {
    display: flex;
    flex-direction: column;
    height: 100%;
}

#investment-panel #inv-results-placeholder {
    text-align: center;
    padding: 50px 20px;
    color: #666;
}

#investment-panel .inv-scorecard-container {
    flex-shrink: 0;
    display: flex;
    justify-content: space-around;
    gap: 5px;
    margin-bottom: 1px;
}

#investment-panel .inv-scorecard {
    flex: 1;
    text-align: center;
    padding: 15px;
    background: #ecf0f1;
    border-radius: 8px;
    border-bottom: 3px solid #bdc3c7;
}

#investment-panel .inv-scorecard-label {
    color: var(--accent);
    margin-bottom: 5px;
    font-size: clamp(12px, 1vw, 14px);
    /* Dynamic Font */
}

#investment-panel .inv-scorecard-value {
    font-weight: bold;
    color: var(--accent);
    font-size: clamp(20px, 1.8vw, 26px);
    /* Dynamic Font */
}

#investment-panel .inv-chart-container {
    flex-grow: 1;
    position: relative;
}

/* Busy state for investment results: subtle dim, keep layout visible to avoid flashing */
#investment-panel .inv-results-column.inv-busy {
    transition: background-color 0.12s ease;
    background-color: rgba(255,255,255,0.02);
    pointer-events: none;
}

#investment-panel .inv-axis text,
#investment-panel .inv-axis .tick text {
    font-weight: 700;
}

#investment-panel .inv-axis-label {
    font-size: 14px;
    font-weight: 700;
    fill: var(--accent);
}

#investment-panel .inv-area {
    fill-opacity: 0.2;
}

#investment-panel .inv-break-even {
    stroke: var(--failure-color);
    stroke-width: 6px;
    stroke-dasharray: 6, 4;
}

#investment-panel .inv-line {
    fill: none;
}

#investment-panel .inv-hitbox {
    stroke-width: 20px;
    fill: none;
    stroke: transparent;
    cursor: pointer;
}

.inv-calendar-button {
    background-color: var(--secondary2);
    color: var(--white);
    border: 1px solid var(--accent);
    padding: 5px 5px;
    border-radius: 2px;
    cursor: pointer;
    font-size: 0.9em;
    width: 100%;
    text-align: right;
}

.inv-calendar-button:hover {
    background-color: var(--secondary1);
    color: var(--idle-color);
    font-weight: bold;
}

/* --- New Modal --- */
.inv-calendar-modal {
    position: fixed;
    /* Sits on top of everything */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: none;
    /* Hidden by default */
    z-index: 1000;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.inv-calendar-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90vw;
    max-width: 1100px;
    /* 4-col layout */
    height: 90vh;
    max-height: 800px;
    /* 3-row layout */
    background-color: var(--page-bg);
    border: 1px solid var(--accent);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    padding: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.inv-calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 10px;
    border-bottom: 1px solid var(--accent);
    flex-shrink: 0;
}

.inv-calendar-header h4 {
    margin: 10px 0;
}

.inv-calendar-header .close-btn {
    background: none;
    border: none;
    color: var(--accent);
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    padding: 0 5px;
}

/* --- 3x4 Grid --- */
.calendar-grid-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    /* 4 columns */
    grid-template-rows: repeat(3, 1fr);
    /* 3 rows */
    gap: 10px;
    overflow-y: auto;
    /* Allow grid to scroll if content overflows, not individual months */
    padding: 10px;
    flex-grow: 1;
}

.calendar-month {
    background-color: var(--accent);
    border-radius: 4px;
    padding: 5px;
    display: flex;
    flex-direction: column;
}

.calendar-month h5 {
    text-align: center;
    margin: 5px 0;
    color: var(--idle-color);
}

.calendar-month table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8em;
}

.calendar-month th,
.calendar-month td {
    text-align: center;
    padding: 3px;
    width: 14.28%;
    /* 1/7th */
}

.calendar-month th.day-header {
    cursor: pointer;
    border-radius: 2px;
    font-size: 0.9em;
    color: var(--secondary1);
    font-weight: bold;
}

.calendar-month th.day-header:hover {
    background-color: var(--secondary2);
}

.calendar-month td {
    cursor: pointer;
    border-radius: 50%;
    height: 24px;
    width: 24px;
    line-height: 18px;
    color: var(--idle-color);
    font-weight: bold;
}

.calendar-month td:not(.not-current-month):hover {
    background-color: var(--secondary1);
}

.calendar-month td.not-current-month {
    color: var(--accent);
    cursor: default;
}

.calendar-month td.holiday {
    box-shadow: 0 0 0 1px var(--failure-color) inset;
}

.calendar-month td.working-day {
    background-color: var(--primary);
    color: var(--idle-color);
    font-weight: bold;
}

.calendar-controls {
    padding: 10px;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    border-top: 1px solid var(--accent);
    flex-shrink: 0;
}

.calendar-controls button {
    background-color: var(--accent-color);
    color: var(--accent);
    border: 1px solid var(--accent);
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
}

.calendar-controls button.apply-btn {
    background-color: var(--primary);
    color: var(--white);
}

/* ============================================= */
/* == Location Tab (from location.js)         == */
/* ============================================= */

#location-panel .state-boundary {
    fill: var(--accent);
    stroke: var(--white);
    stroke-width: 1px;
}

#location-panel .city-marker {
    fill: var(--secondary2);
    stroke: var(--white);
    stroke-width: 1.5px;
    cursor: pointer;
    transition: fill 0.2s ease;
}

#location-panel .city-marker:hover {
    fill: var(--primary);
}

#location-panel .connection-line-bg {
    stroke: var(--secondary1);
    opacity: 0.3;
}

#location-panel .connection-line {
    stroke: var(--secondary1);
}

#location-panel #loc-arrowhead path {
    stroke: var(--secondary1);
    fill: var(--secondary1);
}

#location-panel .location-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    align-content: flex-start;
    gap: 4px;
    background-color: rgba(255, 255, 255, 0.9);
    padding: 10px;
    width: 100%;
    height: 100%;
    border-radius: 10px;
    box-shadow: var(--shadow);
    border: 1px solid var(--idle-color);
    box-sizing: border-box;
}

/* Ensure the foreignObject wrapper doesn't clip the control box shadow */
.location-controls-wrapper {
    overflow: visible;
}

#location-panel .location-controls .input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 0 0 auto;
    min-width: 70px;
}

#location-panel .location-controls .input-group #city-select {
    height: 26px;
    font-size: 0.85rem;
    margin-top: 0.3rem;
    margin-bottom: 0.2rem;
}

#location-panel .location-controls .input-with-unit {
    display: flex;
    align-items: center;
    gap: 5px;
}

#location-panel .location-controls label {
    font-size: 0.8rem;
    font-weight: bold;
    color: var(--accent);
}

#location-panel .location-controls input[type="number"] {
    width: 80px;
}

#location-panel .location-controls .unit-label {
    font-size: 0.85rem;
    color: #555;
    white-space: nowrap;
}

#location-panel .city-info-box {
    display: none;
}

#location-panel .city-info-box div {
    background-color: rgba(255, 255, 255, 0.95);
    padding: 12px;
    border-radius: 6px;
    box-shadow: var(--shadow);
    border: 1px solid var(--idle-color);
    font-size: 0.9rem;
}

#location-panel .city-info-box h4 {
    margin: 0 0 8px 0;
    padding-bottom: 4px;
    border-bottom: 1px solid #ccc;
}

#location-panel .city-info-box p {
    margin: 4px 0;
}

#location-panel .city-info-box button {
    width: 100%;
    margin-top: 8px;
    background-color: var(--failure-color);
    color: var(--white);
    border: none;
}

#location-panel .optimal-factory-marker {
    fill: var(--secondary1);
    stroke: var(--accent);
    stroke-width: 1px;
    pointer-events: none;
}

#location-panel .summary-panel {
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    padding: 8px 10px;
    border-radius: 6px;
    box-shadow: var(--shadow);
    border: 1px solid var(--idle-color);
    font-size: 0.8rem;
    justify-content: space-between;
    display: flex;
    gap: 3px;
    flex-direction: column;
    box-sizing: border-box;
}

#location-panel .summary-panel h4 {
    flex-shrink: 0;
    text-align: center;
    margin: 0;
    padding-bottom: 3px;
    border-bottom: 1px solid #ccc;
}

#location-panel .summary-panel .inv-button-group {
    display: flex;
    width: 100%;
    border-radius: 6px;
    overflow: hidden;
    margin-top: 0px;
    display: flex;
}

#location-panel .summary-panel .inv-button-group button {
    flex-grow: 1;
    padding: 10px;
    font-weight: bold;
    border: 1px solid #ccc;
    background-color: #f0f0f0;
    color: #555;
    cursor: pointer;
    transition: background-color 0.2s;
    font-size: 0.8rem;
    align-self: center;
}

#location-panel .summary-panel .inv-button-group button.active {
    background-color: var(--secondary2);
    color: white;
    border-color: var(--secondary2);
}

#location-panel .summary-panel .inv-button-group button:not(.active):hover {
    background-color: #e0e0e0;
}

/* Responsive adjustments to prevent clipping on narrow viewports */
.summary-panel-wrapper {
    overflow: visible; /* allow the foreignObject to expand within the SVG area */
}

.legend-panel-wrapper {
    overflow: visible;
}

#location-panel .summary-panel {
    min-width: 120px; /* ensure the panel has a usable minimum */
    max-width: 100%;
}

#location-panel .legend-panel {
    min-width: 120px;
    max-width: 100%;
    padding: 8px;
    border-radius: 6px;
    box-shadow: var(--shadow);
    border: 1px solid var(--idle-color);
    background-color: var(--white);
    font-size: 0.9rem;
}

#location-panel .legend-panel h4 {
    margin: 0 0 8px 0;
    padding-bottom: 4px;
    border-bottom: 1px solid #ccc;
    font-size: 1rem;
    text-align: center;
    color: var(--primary);
}

#location-panel .legend-panel svg {
    display: block;
    margin: 0 auto;
}

#location-panel .legend-panel .legend-text {
    text-align: center;
    font-size: 11px;
    color: var(--accent);
    margin-top: 5px;
}

#location-panel .summary-panel .summary-row {
    word-wrap: break-word;
}

/* If the summary contents exceed vertical space, allow internal scrolling without breaking layout */
#location-panel .summary-panel .summary-row-area,
#location-panel .summary-panel {
    overflow: auto;
}

@media (max-width: 800px) {
    /* On small screens, reduce margins and allow controls/summary to stack */
    #location-panel .location-controls {
        padding: 8px;
        gap: 6px;
    }

    /* Make summary panel more compact */
    #location-panel .summary-panel h4 {
        font-size: 0.95rem;
    }

    /* Ensure the summary panel's foreignObject doesn't get a negative width from layout computations */
    .summary-panel-wrapper[width="NaN"] {
        width: 140px;
    }
}

#location-panel .location-controls select {
    min-width: 120px;
    width: 100%;
    flex-grow: 1;
}

#location-panel .location-controls .input-group:first-child {
    flex: 1 1 120px;
    min-width: 120px;
}

#location-panel .location-controls input[type="number"] {
    width: 100%;
    min-width: 100%;
    padding: 6px 8px;
    font-size: 0.85rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    background-color: var(--white);
    height: auto;
    box-sizing: border-box;
}

#location-panel .location-controls input[type="number"] {
    width: 80px;
}

#location-panel .location-controls .loc-control-btn {
    flex-shrink: 0;
    flex-grow: 0;
    height: 35px;
    min-width: 80px;
    align-self: center;
    margin-top: 0 !important;
    margin-bottom: 0 !important;
    padding: 6px 12px;
    font-weight: bold;
    font-size: 0.85rem;
    border: 1px solid var(--primary);
    background-color: var(--primary);
    color: var(--white);
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
    border-radius: 4px;
}

#location-panel .location-controls .loc-control-btn:hover {
    background-color: var(--secondary1);
    border-color: var(--secondary1);
}

#location-panel .location-controls .input-group:nth-child(2),
#location-panel .location-controls .input-group:nth-child(3) {
    flex: 0 0 80px;
    min-width: 80px;
}

#location-panel .location-controls .remove-all-btn {
    background-color: var(--secondary2);
    border-color: var(--secondary2);
}

#location-panel .location-controls .remove-all-btn:hover {
    background-color: var(--secondary1);
    border-color: var(--secondary1);
}

.bottom-ribbon-bar {
    transition: height 0.3s ease-in-out, 0.3s ease-in-out;
    border-top: 1px solid var(--border-color, #444);
    background-color: var(--white);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.bottom-ribbon-container {
    height: 100%;
    display: flex;
    flex-direction: column;
    color: var(--text-color);
    background-color: var(--white);
}

.ribbon-export-btn {
    position: absolute;
    right: 10px;
    top:50%;
    transform: translateY(-50%);
    background-color: var(--secondary2);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s;
    white-space: nowrap;
    z-index: 10;
}

.ribbon-export-btn:hover {
    background-color: var(--secondary1);
    border-color: var(--white);
}

.bottom-ribbon-header {
    height: 30px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    background-color: var(--header-bg);
    color: var(--white);
    border-bottom: 1px solid var(--border-color, #444);
    position: relative;
}

.bottom-ribbon-header:hover {
    background-color: #4a5a64;
}

.bottom-ribbon-header-title {
    font-size: 0.9em;
    font-weight: bold;
    flex-grow: 0;
    text-align: center;
}

.bottom-ribbon-header-title strong {
    color: var(--accent-color);
    font-weight: bold;
}

.bottom-ribbon-header-arrow {
    font-size: 0.8em;
    margin-left: 10px;
}

.bottom-ribbon-content {
    flex-grow: 1;
    display: none;
    flex-direction: row;
    justify-content: space-between;
    overflow: hidden;
    padding: 10px;
    gap: 10px;
    background-color: var(--page-bg);
}

.ribbon-cost-inputs {
    width: 220px;
    flex-shrink: 0;
    padding: 10px;
    border-radius: 6px;
    box-shadow: var(--shadow);
    border: 1px solid var(--idle-color);
    font-size: 0.9rem;
    height: 100%;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.ribbon-cost-inputs h4 {
    margin: 0 0 8px 0;
    padding-bottom: 4px;
    border-bottom: 1px solid #ccc;
    font-size: 1rem;
    text-align: center;
}

.ribbon-cost-inputs .user-input-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    gap: 8px;
}

.ribbon-cost-inputs .user-input-row label {
    flex-shrink: 1;
    white-space: nowrap;
    text-align: left;
    font-size: 0.8rem;
    font-weight: bold;
    color: var(--accent);
}

.ribbon-cost-inputs .user-input-row input[type="number"] {
    flex-grow: 1;
    min-width: 60px;
    width: auto;
    padding: 6px 8px;
    font-size: 0.85rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    background-color: var(--white);
    box-sizing: border-box;
    text-align: right;
}

.ribbon-cost-inputs .user-input-buttons {
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-top: 10px;
}

.ribbon-cost-inputs .loc-control-btn {
    padding: 6px 12px;
    font-weight: bold;
    font-size: 0.85rem;
    border: 1px solid var(--primary);
    background-color: var(--primary);
    color: var(--white);
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
    border-radius: 4px;
    width: 100%;
}

.ribbon-cost-inputs .loc-control-btn:hover {
    background-color: var(--secondary1);
    border-color: var(--secondary1);
}

.ribbon-chart-area {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    min-width: 200px;
    border: 1px solid var(--idle-color);
    border-radius: 6px;
    box-shadow: var(--shadow);
    padding: 5px;
}

#holding-cost-svg-container {
    flex-grow: 1;
    min-height: 100px;
    width: 100%;
    height: 100%;
}

#holding-cost-chart-svg {
    width: 100%;
    height: 100%;
    display: block;
}

#holding-cost-chart-svg .axis text,
#holding-cost-chart-svg .axis-label {
    font-size: 10px;
    fill: var(--accent);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

#holding-cost-chart-svg .axis .tick text {
    font-size: 12px;
}

#holding-cost-chart-svg .axis-label {
    font-size: 12px;
    font-weight: bold;
}

#holding-cost-chart-svg .axis path,
#holding-cost-chart-svg .axis line {
    stroke: var(--accent);
    stroke-width: 1px;
}

#holding-cost-chart-svg .holding-cost-area {
    fill: var(--secondary2);
    opacity: 0.8;
}

.ribbon-demand-panel {
    width: 220px;
    flex-shrink: 0;
    padding: 10px;
    border-radius: 6px;
    box-shadow: var(--shadow);
    border: 1px solid var(--idle-color);
    font-size: 0.9rem;
    height: 100%;
    overflow-y: auto;
}

.ribbon-demand-panel h4 {
    margin: 0 0 8px 12px;
    padding-bottom: 1px;
    border-bottom: 1px solid #ccc;
    font-size: 1rem;
    text-align: center;
    color: var(--primary);
}

.ribbon-demand-panel .demand-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1px;
}

.ribbon-demand-panel .demand-row span:first-child {
    font-weight: bold;
}

.ribbon-demand-panel .demand-bar-container {
    width: 100%;
    height: 1rem;
    background-color: #e9ecef;
    border-radius: 4px;
    margin-top: 4px;
    overflow: hidden;
    align-content: baseline;
}

.ribbon-demand-panel .demand-bar {
    height: 100%;
    background-color: var(--primary);
    width: 0%;
    transition: width 0.5s ease-in-out;
    text-align: center;
    color: white;
    font-weight: bold;
    line-height: 0.9rem;
    text-anchor: middle;
}

.ribbon-cost-inputs .inv-button-group {
    display: flex;
    width: 100%;
    border-radius: 6px;
    overflow: hidden;
    margin-top: 5px;
}

.ribbon-cost-inputs .inv-button-group button {
    flex-grow: 1;
    width: 50%;
    padding: 6px;
    font-weight: bold;
    border: 1px solid #ccc;
    background-color: #f0f0f0;
    color: #555;
    cursor: pointer;
    transition: background-color 0.2s;
    font-size: 0.8rem;
}

.ribbon-cost-inputs .inv-button-group button.active {
    background-color: var(--secondary2);
    color: white;
    border-color: var(--secondary2);
}

.ribbon-cost-inputs .inv-button-group button:not(.active):hover {
    background-color: #e0e0e0;
}

#ppi-chart-modal {
    z-index: 1000;
}

#ppi-chart-modal .ppi-modal-content {
    width: 100%;
    height: 100%;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    border: 1px solid var(--idle-color);
    padding: 15px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    position: relative;
    display: flex;
    flex-direction: column;
}

#ppi-chart-modal h4 {
    text-align: center;
    margin-bottom: 10px;
    color: var(--accent);
    padding-bottom: 0;
    border-bottom: none;
}

#ppi-chart-modal .close-btn {
    position: absolute;
    top: 10px;
    right: 15px;
    background: none;
    border: none;
    font-size: 1.5rem;
    font-weight: bold;
    color: #aaa;
    cursor: pointer;
    line-height: 1;
    padding: 0;
}

#ppi-chart-modal .close-btn:hover {
    color: var(--accent);
}

#ppi-chart-svg {
    display: block;
    flex-grow: 1;
    width: 100%;
}

#ppi-chart-svg .axis text,
#ppi-chart-svg .axis-label {
    font-size: 10px;
    fill: var(--accent);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

#ppi-chart-svg .axis-label {
    font-size: 12px;
    font-weight: bold;
}

#ppi-chart-svg .axis path,
#ppi-chart-svg .axis line {
    stroke: var(--accent);
    stroke-width: 1px;
}

#ppi-chart-svg .ppi-line {
    fill: none;
    stroke: var(--primary);
    stroke-width: 2;
}

#ppi-chart-svg .ppi-loading-text {
    font-size: 16px;
    fill: var(--accent);
    text-anchor: middle;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

#location-panel .ppi-line {
    fill: none;
    stroke: var(--primary);
    stroke-width: 2px;
}

#location-panel .ppi-focus {
    display: none;
}

#location-panel .ppi-focus-circle {
    fill: var(--secondary2);
    stroke: var(--white);
    stroke-width: 1.5px;
}

#location-panel .ppi-overlay {
    fill: none;
    pointer-events: all;
    cursor: crosshair;
}

#location-panel .ppi-loading-text {
    font-size: 14px;
    fill: var(--accent);
    text-anchor: middle;
}

.sim-loading-text {
    color: var(--accent);
    font-weight: bold;
    margin: 0;
    padding: 2px 0;
}

.sim-placeholder-text {
    margin: 0;
    padding: 2px 0;
}

.sim-error-text {
    color: var(--failure-color);
    font-weight: bold;
}

.overlay {
    fill: none;
    pointer-events: all;
}

.chart-error-message {
    color: var(--failure-color);
    font-weight: bold;
    font-size: 12px;
    line-height: 1.4;
    white-space: pre-wrap;
    padding: 10px;
    border: 2px solid var(--failure-color);
    background-color: rgba(255, 200, 200, 0.95);
    max-height: 100%;
    overflow-y: auto;
}

#shipment-qty {
    width: 56px;
}

#shipment-freq {
    width: 48px;
}

#location-panel .ribbon-demand-panel .demand-row,
#location-panel .summary-panel .summary-row {
    display: flex;
    flex-shrink: 0;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2px;
    padding: 1px 0;
}

#location-panel .ribbon-demand-panel .filter-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2px;
    padding: 1px 0;
}

#location-panel .ribbon-demand-panel .filter-row label {
    display: flex;
    align-items: center;
    gap: 4px;
    text-align: left;
    padding-right: 5px;
    color: var(--accent);
    font-weight: bold;
    cursor: pointer;
}

#location-panel .ribbon-demand-panel .filer-row strong {
    text-align: right;
    font-weight: bold;
}

.brush .selection {
    fill: var(--secondary2);
    fill-opacity: 0.3;
}

#location-panel .summary-panel .summary-row.summary-total {
    font-weight: bold;
    border-top: 1px solid var(--border-color, #ccc);
    margin-top: 1px;
    padding-top: 1px;
}

#location-panel .summary-panel .summary-row span:first-child {
    text-align: left;
    padding-right: 5px;
    color: var(--accent);
    font-weight: 500;
}

#location-panel .ribbon-demand-panel .summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1px;
}

#location-panel .ribbon-demand-panel .summary-row span:first-child {
    text-align: left;
    padding-right: 5px;
    color: var(--accent);
    font-weight: bold;
}

#location-panel .ribbon-demand-panel .demand-row span:first-child {
    font-weight: bold;
}

#location-panel .ribbon-demand-panel .demand-row span:last-child,
#location-panel .summary-panel .summary-row span:last-child {
    text-align: right;
    font-weight: bold;
}

#location-panel .summary-panel .summary-row span:first-child {
    font-weight: 500;
}

#location-panel .summary-panel .summary-row-area {
    flex-grow: 1;
    overflow-y: auto;
}

/* Save & Compare Styles */
#saveConfigBtn {
    width: 100%;
    padding: 0.5rem;
    background-color: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

#saveConfigBtn:hover {
    background-color: var(--accent);
}

#compareBtn {
    width: 100%;
    padding: 0.5rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

#compareBtn.current {
    background-color: var(--secondary1);
    color: var(--accent);
}

#compareBtn.saved {
    background-color: var(--secondary2);
    color: var(--white);
}

#save-compare-section {
    margin-top: 1rem;
}

#compare-tabs {
    display: flex;
    margin-bottom: 1rem;
}

.compare-tab-btn {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid var(--accent);
    background-color: var(--white);
    color: var(--accent);
    cursor: pointer;
    font-size: 0.8rem;
}

.compare-tab-btn.active {
    background-color: var(--accent);
    color: var(--white);
}

.compare-tab-btn:first-child {
    border-radius: 4px 0 0 4px;
}

.compare-tab-btn:last-child {
    border-radius: 0 4px 4px 0;
}

#savedConfigPreview h5 {
    margin-bottom: 0.5rem;
    color: var(--accent);
}

#savedConfigPreview p {
    margin: 0.25rem 0;
    font-size: 0.85rem;
}

#savedWorkstationPreview {
    margin-top: 0.5rem;
    font-size: 0.8rem;
}