.hidden { display: none !important; }

:root {
    --bg-color: #1a1a1a;
    --panel-bg: #2d2d2d;
    --text-color: #e0e0e0;
    --accent-color: #f39c12;
    --army-a-color: #3498db;
    --army-b-color: #e74c3c;
    --border-radius: 8px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0; /* Nav handles spacing */
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Navigation */
.sticky-nav {
    position: sticky;
    top: 0;
    width: 100%;
    background: rgba(45, 45, 45, 0.95);
    border-bottom: 1px solid #444;
    z-index: 1000;
    backdrop-filter: blur(10px);
    padding: 10px 0;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.nav-brand {
    font-weight: bold;
    color: var(--accent-color);
    font-size: 1.2rem;
    letter-spacing: 2px;
    cursor: pointer;
}

.sticky-nav ul {
    list-style: none;
    display: flex;
    gap: 30px;
    margin: 0;
    padding: 0;
}

.sticky-nav a {
    color: #bbb;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
    font-size: 0.9rem;
}

.sticky-nav a:hover {
    color: white;
}

.nav-btn {
    background: var(--accent-color);
    color: black;
    border: none;
    padding: 5px 15px;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    font-size: 0.8rem;
    transition: transform 0.1s;
}

.nav-btn:hover {
    transform: scale(1.05);
}

/* Sections */
main {
    width: 100%;
    max-width: 1200px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.section-anchor {
    scroll-margin-top: 80px; /* Offset for sticky nav */
}

.section-header {
    width: 100%;
    text-align: left;
    margin: 40px 0 20px 0;
    border-bottom: 1px solid #444;
    padding-bottom: 10px;
}

.section-header h2 {
    margin: 0;
    color: var(--accent-color);
    font-size: 1.8rem;
    text-transform: uppercase;
}

.section-header p {
    margin: 5px 0 0 0;
    color: #888;
    font-size: 0.9rem;
}

/* Header */
.scenarios-bar {
    width: 100%;
    margin-bottom: 10px;
    display: flex;
    gap: 10px;
    align-items: center;
    background: var(--panel-bg);
    padding: 10px 15px;
    border-radius: var(--border-radius);
    overflow-x: auto;
}

.scenario-context {
    width: 100%;
    margin-bottom: 20px;
}

#scenario-desc {
    width: 100%;
    background: transparent;
    border: 1px solid #333;
    color: #888;
    padding: 10px;
    border-radius: var(--border-radius);
    font-size: 0.85rem;
    font-family: inherit;
    resize: vertical;
    min-height: 40px;
    box-sizing: border-box;
    display: block;
}

#scenario-desc:focus {
    outline: none;
    border-color: var(--accent-color);
    color: #eee;
}

.scenario-btn {
    background: #444;
    color: white;
    border: 1px solid #555;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    white-space: nowrap;
    transition: all 0.2s;
}

.scenario-btn:hover {
    background: var(--accent-color);
    color: black;
    border-color: var(--accent-color);
}

header {
    text-align: center;
    margin: 30px 0;
}

header h1 {
    font-size: 3rem;
    margin: 0;
    color: var(--accent-color);
    letter-spacing: 4px;
    cursor: pointer;
}

/* Main Panels */
.simulation-container {
    display: flex;
    gap: 20px;
    width: 100%;
    align-items: stretch;
    margin-bottom: 20px;
    justify-content: center;
}

.army-panel {
    flex: 1;
    min-width: 0;
    background: var(--panel-bg);
    padding: 15px;
    border-radius: var(--border-radius);
    border-top: 5px solid transparent;
    display: flex;
    flex-direction: column;
}

#army-a { border-color: var(--army-a-color); }
#army-b { border-color: var(--army-b-color); }

.header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.header-row h2 {
    font-size: 1.1rem;
    color: white;
    margin: 0;
}

.preset-select {
    background: #1a1a1a;
    color: var(--accent-color);
    border: 1px solid #444;
    padding: 4px;
    border-radius: 4px;
    font-size: 0.85rem;
}

.unit-config { margin-bottom: 15px; }

.bonus-fields {
    background: #363636;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 12px;
}

/* Searchable Controls */
.searchable-preset, .searchable-scenario {
    position: relative;
    width: 180px;
}

.searchable-scenario {
    width: 250px;
}

.preset-search, .scenario-search {
    width: 100%;
    background: #1a1a1a;
    border: 1px solid #444;
    color: var(--accent-color);
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 0.85rem;
}

.preset-list, .scenario-list {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #222;
    border: 1px solid #444;
    border-top: none;
    z-index: 100;
    max-height: 300px;
    overflow-y: auto;
    border-radius: 0 0 4px 4px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.5);
}

.preset-item, .scenario-item {
    padding: 8px 12px;
    cursor: pointer;
    font-size: 0.85rem;
    color: #eee;
    border-bottom: 1px solid #333;
}

.preset-item:hover, .scenario-item:hover {
    background: #333;
    color: var(--accent-color);
}

.preset-item.selected, .scenario-item.selected {
    background: var(--accent-color);
    color: black;
}

/* Stepper Controls */
.stepper {
    display: flex;
    align-items: stretch;
    background: #1a1a1a;
    border: 1px solid #444;
    border-radius: 4px;
    overflow: hidden;
}

.stepper input {
    border: none !important;
    text-align: center;
    border-left: 1px solid #333 !important;
    border-right: 1px solid #333 !important;
    border-radius: 0 !important;
    -moz-appearance: textfield;
}

.stepper input::-webkit-outer-spin-button,
.stepper input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.step-btn {
    background: #333;
    border: none;
    color: #fff;
    width: 30px;
    cursor: pointer;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.step-btn:hover {
    background: #444;
    color: var(--accent-color);
}

.grid-fields.triple { grid-template-columns: 1fr 1fr 1fr; }
.grid-fields.quadruple { grid-template-columns: repeat(4, 1fr); }

.cost-config {
    background: #222;
    padding: 10px;
    border-radius: 4px;
    border: 1px solid #444;
    margin-bottom: 12px;
}

.cost-config > label {
    font-weight: bold;
    color: var(--accent-color);
    text-transform: uppercase;
    font-size: 0.7rem;
    margin-bottom: 8px;
    display: block;
}

.discount-fields {
    margin-top: 10px;
    border-top: 1px solid #333;
    padding-top: 10px;
}

.production-config {
    background: #222;
    padding: 8px;
    border-radius: 4px;
    border: 1px dashed #444;
    margin-top: 10px;
}

.production-config .grid-fields {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.delay-helpers {
    display: flex;
    gap: 3px;
    margin-top: 4px;
    flex-wrap: wrap;
}

.delay-btn, .tech-delay-btn {
    flex: 1;
    background: #444;
    border: none;
    color: #eee;
    font-size: 0.6rem;
    padding: 3px 0;
    border-radius: 2px;
    cursor: pointer;
    transition: background 0.2s;
    min-width: 40px;
}

.delay-btn:hover, .tech-delay-btn:hover {
    background: var(--accent-color);
    color: black;
}

/* Fields */
.field { margin-bottom: 10px; display: flex; flex-direction: column; }
label { font-size: 0.75rem; margin-bottom: 3px; color: #bbb; white-space: nowrap; }
input[type="text"], input[type="number"] {
    background: #1a1a1a; border: 1px solid #444; color: white; padding: 6px; border-radius: 4px; font-size: 0.9rem;
    width: 100%; box-sizing: border-box;
}
input[type="range"] { width: 100%; margin: 5px 0; }
.grid-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.grid-fields .field { margin: 0; min-width: 0; }

.vs-divider {
    display: flex; align-items: center; font-weight: bold; font-size: 1.2rem; color: #555;
    padding: 0 10px;
}

/* Ratio Bar */
.ratio-bar {
    display: flex; justify-content: center; align-items: center; gap: 40px;
    background: var(--panel-bg); padding: 20px; border-radius: var(--border-radius);
    margin: 20px 0; width: 100%; border-bottom: 3px solid var(--accent-color);
}
.counter-group { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.counter-group label { font-weight: bold; color: var(--accent-color); text-transform: uppercase; font-size: 0.9rem; }
.counter-controls { display: flex; align-items: center; gap: 10px; }
.count-btn {
    background: #444; color: white; border: none; width: 40px; height: 40px;
    border-radius: 50%; font-size: 1.5rem; cursor: pointer; display: flex;
    align-items: center; justify-content: center; transition: background 0.2s;
}
.count-btn:hover { background: var(--accent-color); color: black; }
.counter-controls input { width: 80px; text-align: center; font-size: 1.5rem; font-weight: bold; }
.ratio-vs { font-size: 2rem; font-weight: bold; color: #555; }

/* Results */
.production-race-controls {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 20px;
    background: var(--panel-bg);
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    width: 100%;
    border-bottom: 3px solid #444;
}

.prod-group {
    flex: 1;
    padding: 10px;
    background: #222;
    border-radius: 6px;
    border-left: 4px solid transparent;
}

.prod-group.army-a-border { border-color: var(--army-a-color); }
.prod-group.army-b-border { border-color: var(--army-b-color); }

.prod-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: bold;
    color: var(--accent-color);
    text-transform: uppercase;
    font-size: 0.75rem;
}

.prod-fields-row {
    display: flex;
    gap: 10px;
}

.prod-fields-row .field {
    flex: 1;
    margin: 0;
}

.prod-requirements {
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px solid #333;
    display: flex;
    gap: 15px;
    font-size: 0.75rem;
    justify-content: center;
}

.prod-req-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.prod-req-label {
    color: #888;
    text-transform: uppercase;
    font-size: 0.65rem;
}

.prod-req-val {
    font-weight: bold;
    color: var(--accent-color);
}

.prod-vs {
    display: flex;
    align-items: center;
    font-weight: bold;
    color: #555;
}

.results-area {
    width: 100%; background: var(--panel-bg); padding: 20px;
    border-radius: var(--border-radius); margin-bottom: 40px;
}

.graph-controls {
    margin: 20px 0; background: var(--panel-bg); padding: 15px;
    border-radius: var(--border-radius); display: flex; gap: 20px; align-items: center;
}

.result-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.result-card { background: #1a1a1a; padding: 15px; border-radius: 6px; text-align: center; }
.result-card h4 { margin: 0 0 10px 0; color: #888; text-transform: uppercase; font-size: 0.8rem; }
.big-stat { font-size: 2rem; font-weight: bold; color: var(--accent-color); }
.winner-a { color: var(--army-a-color); }
.winner-b { color: var(--army-b-color); }

/* Charts */
.charts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; width: 100%; margin-top: 30px;}
.chart-wrapper { background: #1a1a1a; padding: 15px; border-radius: 6px; border: 1px solid #333; }
.chart-wrapper h4 { margin: 0 0 10px 0; font-size: 0.9rem; color: #888; text-transform: uppercase; text-align: center; }
.chart-container { width: 100%; height: 250px; position: relative; }

/* Matchup Report */
.matchup-report {
    background: #1a1a1a; padding: 20px; border-radius: var(--border-radius);
    margin: 20px 0; border-left: 5px solid var(--accent-color); line-height: 1.6;
}
.matchup-report h3 { margin-top: 0; color: var(--accent-color); text-transform: uppercase; font-size: 1.2rem; }
.report-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.breakpoint-tag { display: inline-block; padding: 2px 8px; border-radius: 4px; font-weight: bold; font-size: 0.85rem; }
.win-tag { background: #2ecc71; color: black; }
.cost-tag { background: #f39c12; color: black; }

/* Scaling Layout */
/* Comparison Table */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    background: #1a1a1a;
    border-radius: 6px;
    overflow: hidden;
}

.comparison-table th {
    background: #222;
    color: var(--accent-color);
    padding: 12px;
    text-align: left;
    text-transform: uppercase;
    font-size: 0.75rem;
}

.comparison-table td {
    padding: 10px 12px;
    border-bottom: 1px solid #222;
}

.diff-pos { color: #2ecc71; font-weight: bold; }
.diff-neg { color: #e74c3c; font-weight: bold; }
.diff-neutral { color: #666; }

.scaling-analysis-layout { display: flex; flex-direction: column; gap: 40px; margin-bottom: 40px; border-bottom: 2px dashed #444; padding-bottom: 40px; }
.side-by-side { display: flex; gap: 20px; align-items: stretch; }
.side-by-side .table-container { flex: 1; background: #1a1a1a; padding: 15px; border-radius: 6px; }
.side-by-side .chart-wrapper { flex: 1; }
.table-container h3 { margin-top: 0; color: var(--accent-color); font-size: 1rem; text-align: center; }
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
th { text-align: left; color: #888; border-bottom: 1px solid #333; padding: 5px; }
td { padding: 8px 5px; border-bottom: 1px solid #222; }
.survivor-count { font-weight: bold; }
.wounded-hp { color: #e74c3c; font-style: italic; }
.full-width { grid-column: 1 / -1; }

/* Tooltips */
.help-label { display: flex; align-items: center; gap: 5px; position: relative; cursor: default; width: 100%; }
.help-icon {
    background: #555; color: #fff; width: 16px; height: 16px; border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center; font-size: 10px; font-weight: bold;
}
.help-text {
    visibility: hidden; width: 200px; background-color: #333; color: #fff; text-align: center;
    border-radius: 6px; padding: 10px; position: absolute; z-index: 10; bottom: 125%; left: 0;
    opacity: 0; transition: opacity 0.3s; font-size: 0.75rem; line-height: 1.2; pointer-events: none;
    box-shadow: 0 4px 10px rgba(0,0,0,0.5);
}
.help-label:hover .help-text { visibility: visible; opacity: 1; }
.val-display { margin-left: auto; color: var(--accent-color); font-weight: bold; }

/* Duel Stats */
.duel-stats {
    margin-top: 20px; padding-top: 15px; border-top: 1px solid #444;
    display: grid; grid-template-columns: 1fr 1fr; gap: 10px; font-size: 0.8rem; color: #aaa;
}
.duel-stats div { display: flex; justify-content: space-between; }
.duel-stats span { color: var(--text-color); font-weight: bold; }

/* Responsive Adjustments */
@media (max-width: 1024px) {
    .side-by-side { flex-direction: column; }
    .side-by-side .table-container { flex: 1 1 auto; width: 100%; }
    .charts-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-content { flex-direction: column; gap: 10px; padding: 5px 10px; }
    .sticky-nav { position: relative; } /* Don't stick on very small screens to save space */
    .sticky-nav ul { gap: 10px; flex-wrap: wrap; justify-content: center; }
    
    .results-area { overflow-x: auto; padding: 10px; }
    .comparison-table { min-width: 400px; } /* Ensure it doesn't squash too much */
    
    .simulation-container { flex-direction: column; }
    .vs-divider { margin: 10px 0; justify-content: center; }
    
    .ratio-bar { flex-direction: column; gap: 20px; }
    .production-race-controls { flex-direction: column; }
    .prod-vs { display: none; }
    
    .prod-fields-row { flex-wrap: wrap; }
    .prod-fields-row .field { flex: 1 1 calc(50% - 10px); min-width: 120px; }
    
    .searchable-scenario { width: 100%; }
    .scenarios-bar { flex-wrap: wrap; justify-content: center; }
    
    .comparison-table { font-size: 0.8rem; }
    .comparison-table th, .comparison-table td { padding: 8px 5px; }
}

@media (max-width: 480px) {
    .grid-fields { grid-template-columns: 1fr; }
    .grid-fields.triple, .grid-fields.quadruple { grid-template-columns: 1fr 1fr; }
    
    .header-row { flex-direction: column; align-items: flex-start; }
    .searchable-preset { width: 100%; }
    
    .prod-req-item { font-size: 0.65rem; }
    
    .step-btn { width: 40px; height: 40px; } /* Larger touch targets */
    .stepper { height: 40px; }
    .stepper input { height: 100%; }
    
    .searchable-preset, .searchable-scenario { width: 100% !important; }
    
    .nav-btn { width: 100%; text-align: center; }
}