/* ==========================================================================
    SECTION: CSS - CORE THEME & VARIABLES
    ========================================================================== */
:root { 
    --bg: #1a1a1a; --text: #e0e0e0; --accent: #4caf50; 
    --panel: #2d2d2d; --border: #444; --warn: #ff9800; 
    --gold: #ffd700; --info: #2196f3; --profit: #00e676; 
    --bio: #76ff03; --fuel: #ff5722; --danger: #f44336;
    --row-id: #4fc3f7; --byproduct: #d56de7;
    --thumb-size: 14px; /* Variable for slider thumb calculations */
}
* { box-sizing: border-box; }
body { 
    font-family: 'Segoe UI', sans-serif; 
    background: var(--bg); color: var(--text); 
    padding: 0; margin: 0; height: 100vh; 
    display: flex; flex-direction: column; 
    font-size: 13px; 
}

/* ==========================================================================
    SECTION: CSS - LAYOUT & GRID
    ========================================================================== */
header { 
    background: #111; padding: 8px 20px; 
    border-bottom: 1px solid var(--border); 
    display: flex; align-items: center; justify-content: space-between; 
    flex-shrink: 0; 
}
h1 { color: var(--accent); margin: 0; font-size: 1.1em; }
.repo-link { 
    color: #888; text-decoration: none; font-size: 0.9em; 
    margin-right: 5px; border: 1px solid #444; padding: 4px 8px; 
    border-radius: 4px; transition: 0.2s; 
}
.repo-link:hover { color: #fff; border-color: #666; background: #222; }
.subtitle { color: #888; font-size: 0.8em; margin-left: 10px; cursor: pointer; text-decoration: underline; }
.subtitle:hover { color: #fff; }

.tabs { display: flex; gap: 5px; }
.tab-btn { 
    background: #222; border: 1px solid var(--border); 
    color: #888; padding: 6px 12px; cursor: pointer; 
    border-radius: 4px; font-size: 0.9em; 
}
.tab-btn:hover { background: #333; color: #fff; }
.tab-btn.active { background: var(--accent); color: white; border-color: var(--accent); font-weight: bold; }

main { flex: 1; overflow: hidden; position: relative; }
.view { position: absolute; top: 0; left: 0; width: 100%; height: 100%; overflow-y: auto; padding: 15px; display: none; }
.view.active { display: block; }

.app-grid { 
    display: grid; 
    grid-template-columns: 260px 1fr 220px 200px; 
    gap: 15px; 
    max-width: 1920px; margin: 0 auto; height: 100%; 
}
.panel { 
    background: var(--panel); padding: 12px; 
    border-radius: 8px; border: 1px solid var(--border); 
    margin-bottom: 15px; 
}
.panel h3 { 
    margin-top: 0; color: #fff; border-bottom: 1px solid #444; 
    padding-bottom: 8px; font-size: 1.05em; margin-bottom: 10px; 
}

/* ==========================================================================
    SECTION: CSS - CONTROLS & INPUTS
    ========================================================================== */
.input-group { margin-bottom: 12px; position: relative; }
label { display: inline-block; font-size: 0.85em; color: #aaa; margin-bottom: 4px; }
select { width: 100%; padding: 6px; background: #333; border: 1px solid #555; color: white; border-radius: 4px; font-size: 1em; }

.small-num-input { background: #333; border: 1px inline-block #555; color: #fff; width: 60px; border-radius: 3px; margin-left: 6px; }

/* ==========================================================================
    SECTION: CSS - SLIDER COMPONENTS
    ========================================================================== */
.slider-container { position: relative; width: 100%; height: 50px; margin-top: 5px; }
input[type=range] {
    width: 100%; -webkit-appearance: none; -moz-appearance: none; appearance: none; background: transparent; cursor: pointer; position: relative; z-index: 10;
}
input[type=range]::-webkit-slider-runnable-track {
    width: 100%; height: 6px; background: #444; border-radius: 3px;
}

/* THUMB: Downward Triangle Pointer */
input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none; 
    height: var(--thumb-size); width: var(--thumb-size); 
    background: var(--accent); 
    margin-top: -6px; /* Center on track */
    border: none;
    clip-path: polygon(0% 0%, 100% 0%, 50% 100%);
    transform: none;
    border-radius: 0; 
    position: relative;
    z-index: 20;
}
input[type=range]:focus { outline: none; }

.slider-ticks {
    position: absolute; top: 14px; left: 0; right: 0; height: 20px; pointer-events: none;
}
.tick-mark {
    position: absolute; display: flex; flex-direction: column; align-items: center; transform: translateX(-50%);
}
.tick-line { width: 1px; height: 6px; background: #666; margin-bottom: 2px; }
.tick-mark.labeled .tick-line { height: 8px; background: #999; }

/* Vertical Fractions Logic */
.vertical-frac { 
    display: flex; flex-direction: column; align-items: center; 
    color: #888; font-family: sans-serif; font-size: 9px; line-height: 1;
}
.vertical-frac .num { margin-bottom: 2px; }
.vertical-frac .sep { width: 8px; height: 1px; background: #666; opacity: 0.7; }
.vertical-frac .den { margin-top: 2px; }
.vertical-frac.full-label { font-size: 10px; margin-top: 2px; }

/* ==========================================================================
    SECTION: CSS - COMBOBOX
    ========================================================================== */
.combobox-container { position: relative; width: 100%; }
.input-wrapper { position: relative; display: flex; align-items: center; background: #333; border: 1px solid #555; border-radius: 4px; }
.real-input {
    width: 100%; background: transparent; border: none; color: white; padding: 6px; font-size: 1em; z-index: 2; position: relative;
}
.real-input:focus { outline: none; border-color: var(--accent); }
.ghost-input {
    position: absolute; top: 6px; left: 7px;
    color: #666; font-size: 1em; z-index: 1; pointer-events: none; white-space: pre;
}
.combo-arrow { padding: 0 8px; color: #888; font-size: 0.8em; cursor: pointer; z-index: 3; user-select: none; }
.combo-arrow:hover { color: #fff; }
.combobox-list {
    position: absolute; top: 100%; left: 0; right: 0;
    background: #252525; border: 1px solid #444; border-radius: 4px;
    max-height: 300px; overflow-y: auto; z-index: 100; display: none;
    box-shadow: 0 4px 10px rgba(0,0,0,0.5); margin-top: 2px;
}
.combobox-list.active { display: block; }
.combo-item { padding: 6px 8px; cursor: pointer; border-bottom: 1px solid #333; font-size: 0.95em; display: flex; justify-content: space-between; }
.combo-item:hover, .combo-item.selected { background: #333; color: white; }
.combo-item.selected { border-left: 3px solid var(--accent); background: #2e3d30; }
.combo-cat { font-size: 0.75em; color: #666; font-style: italic; }

/* ==========================================================================
    SECTION: CSS - SPINNERS & BUTTONS
    ========================================================================== */
.spinner-wrapper { display: flex; align-items: stretch; width: 100%; height: 32px; }
.spinner-btn { background: #444; border: 1px solid #555; color: white; padding: 0 10px; cursor: pointer; font-size: 0.9em; font-weight: bold; display: flex; align-items: center; justify-content: center; transition: 0.1s; min-width: 32px; }
.spinner-btn:hover { background: #555; }
.spinner-btn:active { background: var(--accent); }
.spinner-btn.left { border-right: none; }
.spinner-btn.right { border-left: none; }
.spinner-btn.first { border-radius: 4px 0 0 4px; }
.spinner-btn.last { border-radius: 0 4px 4px 0; }

input[type="number"] { flex: 1; text-align: center; font-size: 1.1em; background: #333; border: 1px solid #555; border-left: 1px solid #444; border-right: 1px solid #444; color: white; width: 10px; -moz-appearance: textfield; appearance: textfield; }
input:disabled { opacity: 0.5; cursor: not-allowed; background: #2a2a2a; color: #aaa; }

.split-btn-container { display: flex; gap: 5px; margin-top: 6px; }
.split-btn { flex: 1; padding: 6px 4px; border: 1px solid #555; border-radius: 4px; cursor: pointer; font-size: 0.8em; font-weight: bold; transition: 0.2s; color: #ddd; background: #333; text-align: center; }
.split-btn:hover:not(:disabled) { background: #444; color: #fff; }
.btn-active-green { background: #2e7d32 !important; border-color: #4caf50 !important; color: white !important; }
.btn-inactive-red { background: #333 !important; color: #aaa !important; }
.checkbox-row { display: flex; align-items: center; margin-top: 8px; font-size: 0.9em; color: #ccc; }
.checkbox-row input { margin-right: 8px; }

/* ==========================================================================
    SECTION: CSS - TOGGLE SWITCH
    ========================================================================== */
.switch {
    position: relative;
    display: inline-block;
    width: 34px;
    height: 18px;
}
.switch input { opacity: 0; width: 0; height: 0; }
.slider-switch {
    position: absolute; cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: #444; transition: .3s;
    border-radius: 18px;
}
.slider-switch:before {
    position: absolute; content: "";
    height: 12px; width: 12px;
    left: 3px; bottom: 3px;
    background-color: white; transition: .3s;
    border-radius: 50%;
}
input:checked + .slider-switch { background-color: var(--accent); }
input:checked + .slider-switch:before { transform: translateX(16px); }

/* Highlight current mode label */
.active-mode { color: var(--accent) !important; }

/* ==========================================================================
    SECTION: CSS - CONSTRUCTION LIST
    ========================================================================== */
.build-list { list-style: none; padding: 0; margin: 0; }
.build-group { margin-bottom: 2px; }
.build-header { 
    display: flex; justify-content: space-between; align-items: center; 
    padding: 6px 8px; background: #333; border-radius: 4px; cursor: pointer; 
    font-weight: bold; color: #ccc; border: 1px solid transparent; user-select: none;
}
.build-header:hover { background: #444; border-color: #555; color: #fff; }
.build-arrow { font-size: 0.8em; margin-right: 8px; transition: transform 0.1s; display: inline-block; width: 10px; }
.expanded .build-arrow { transform: rotate(90deg); }
.build-sublist { list-style: none; padding: 0 0 0 10px; margin: 0; display: none; border-left: 2px solid #444; margin-left: 10px; }
.expanded .build-sublist { display: block; }
.build-subitem { display: flex; justify-content: space-between; padding: 4px 8px; font-size: 0.9em; color: #aaa; border-bottom: 1px dashed #333; }
.build-subitem:last-child { border-bottom: none; }
.build-val { color: var(--gold); }
.total-mats-header { margin-top: 20px; border-top: 1px solid #555; padding-top: 10px; font-weight: bold; color: var(--accent); text-transform: uppercase; font-size: 0.9em; }
.total-mat-item { display: flex; justify-content: space-between; padding: 4px 0; border-bottom: 1px solid #333; font-size: 0.95em; color: #ddd; }

/* ==========================================================================
    SECTION: CSS - SUMMARY BOX
    ========================================================================== */
.summary-box { background: #252525; border-left: 4px solid var(--accent); padding: 12px; margin-bottom: 20px; display: grid; grid-template-columns: 1fr 2fr 2fr 1fr; gap: 10px; }
.stat-block { display: flex; flex-direction: column; padding-right: 10px; border-right: 1px solid #444; }
.stat-block:last-child { border-right: none; }
.stat-label { font-size: 0.75em; color: #aaa; text-transform: uppercase; letter-spacing: 1px; }
.stat-value { font-size: 1.00em; font-weight: bold; color: #fff; margin-top: 4px; }
.stat-sub { font-size: 0.75em; color: var(--warn); margin-top: 2px; }
.gold-profit { color: var(--profit); } .gold-cost { color: var(--gold); } .net-positive { color: #69f0ae; }

/* ==========================================================================
    SECTION: CSS - TREE NODES
    ========================================================================== */
.node { margin-left: 15px; padding: 4px 0; border-left: 2px solid #555; position: relative; min-width: 300; }
.node-content { display: flex; align-items: center; gap: 4px; background: #222; padding: 6px 10px; border-radius: 4px; border: 1px solid #333; }
.tree-arrow { display: inline-block; width: 14px; cursor: pointer; transition: transform 0.1s; user-select: none; font-size: 0.8em; color: #888; text-align:center; }
.row-id { color: var(--row-id); font-family: monospace; font-weight: bold; min-width: 20px; font-size: 0.9em; cursor: pointer; }
.node.collapsed .node-children { display: none; }
.node.collapsed .tree-arrow { transform: rotate(-90deg); }
.node-children { margin-left: 0; }

/* ==========================================================================
   SECTION: PRODUCTION CHAIN DEPTH COLORS (Evolving Biome)
   ========================================================================== */

.node[data-depth="0"] { border-left-color: #1A237E; }
.node[data-depth="1"] { border-left-color: #0D2D84; }
.node[data-depth="2"] { border-left-color: #00378A; }
.node[data-depth="3"] { border-left-color: #004D85; }
.node[data-depth="4"] { border-left-color: #005A79; }
.node[data-depth="5"] { border-left-color: #00666C; }
.node[data-depth="6"] { border-left-color: #00705E; }
.node[data-depth="7"] { border-left-color: #00774D; }
.node[data-depth="8"] { border-left-color: #007D3A; }
.node[data-depth="9"] { border-left-color: #1B8127; }

.qty { color: var(--accent); font-weight: bold; }
.item-link { cursor: pointer; text-decoration: none; color: inherit; transition: 0.2s; }
.item-link:hover { color: var(--info); text-decoration: underline; }
.machine-tag { background: #333; padding: 2px 6px; border-radius: 3px; font-size: 0.85em; border: 1px solid #444; color: #fff; font-weight: bold; cursor: help; }
.machine-tag::after {
    content: attr(data-tooltip);    
    position: absolute;
    bottom: calc(100% + 8px); 
    
    transform: translateX(-50%);    
    white-space: pre-wrap;
    width: max-content;
    max-width: 200px;    
    background: rgba(20, 20, 20, 0.95);
    color: #fff;
    padding: 8px 12px;
    border-radius: 4px;
    border: 1px solid #555;
    font-size: 0.9em;
    line-height: 1.4;
    text-align: left;
    box-shadow: 0 4px 10px rgba(0,0,0,0.5);
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
    transition-delay: 0.1s;
    pointer-events: none;
}
.machine-tag:hover::after { opacity: 1; visibility: visible; }

.heat-tag { color: var(--warn); font-size: 0.85em; margin-left: 3px; }
.bio-tag { color: var(--bio); font-size: 0.85em; margin-left: 3px; }
.cost-tag { color: var(--gold); font-size: 0.85em; margin-left: 3px; font-weight: bold; }
.byproduct-tag { color: var(--byproduct); font-size: 0.85em; margin-left: 3px; font-weight: bold; }
.info-tag { color: var(--info); font-size: 0.85em; margin-left: 3px; }
.fail-tag { color: var(--danger); font-size: 0.85em; margin-left: 3px; font-weight: bold; }
.max-cap-tag { color: #888; font-size: 0.8em; margin-left: 3px; font-style: italic; cursor:pointer; }
.details { font-size: 0.9em; color: #ccc; }
.output-tag { color: var(--info); font-size: 0.85em; margin-left: 3px; font-weight: bold; }
.recycle-tag { color: var(--byproduct); font-size: 0.85em; margin-left: 3px; font-weight: bold; }
.swap-btn { background: transparent; border: 1px solid #555; color: #888; width: 22px; height: 22px; border-radius: 50%; font-size: 11px; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; padding: 0; line-height: 1; }
.swap-btn:hover { background: #444; color: white; border-color: #fff; }

.push-right { margin-left: auto; display: flex; align-items: center; }
.recycle-btn { background: transparent; border: 1px solid var(--byproduct); color: var(--byproduct); border-radius: 4px; font-size: 0.8em; cursor: pointer; padding: 2px 8px; font-weight:bold; transition:0.2s; }
.recycle-btn:hover { background: rgba(156, 39, 176, 0.2); }
.recycle-btn.active { background: #2e3d30; color: var(--profit); border-color: var(--profit); }

.section-header { margin-top: 25px; margin-bottom: 8px; padding-bottom: 4px; border-bottom: 1px dashed #555; color: #888; text-transform: uppercase; letter-spacing: 1px; font-size: 0.85em; font-weight: bold; }

/* ==========================================================================
    SECTION: CSS - MODALS & EDITOR
    ========================================================================== */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.8); display: none; justify-content: center; align-items: center; z-index: 1000; }
.modal-content { background: var(--panel); border: 1px solid var(--border); width: 600px; max-width: 90%; max-height: 80vh; overflow-y: auto; padding: 20px; border-radius: 8px; }
.modal-header { display: flex; justify-content: space-between; border-bottom: 1px solid #444; padding-bottom: 10px; margin-bottom: 10px; }
.close-modal { background: none; border: none; color: #aaa; font-size: 1.5em; cursor: pointer; }
.close-modal:hover { color: #fff; }
.recipe-option { background: #333; border: 1px solid #444; padding: 10px; margin-bottom: 10px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; flex-direction: column; align-items: flex-start; }
.recipe-option.active { border-color: var(--accent); background: #2e3d30; }
.recipe-option.disabled { opacity: 0.6; cursor: not-allowed; background: #3e2a2a; border-color: #d32f2f; }
.recipe-header { font-weight: bold; font-size: 1.1em; margin-bottom: 4px; display:flex; justify-content:space-between; width:100%; }
.recipe-details { font-size: 0.9em; color: #aaa; }
.loop-warning { color: #ef5350; font-size: 0.85em; font-weight: bold; margin-top: 4px; }

#update-banner{display:none;background:var(--warn);color:#000;padding:10px 20px;font-weight:bold;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:2000;box-shadow:0 2px 10px rgba(0,0,0,0.3);}
.update-btns{display:flex;gap:10px;}.update-btn{background:#000;color:#fff;border:none;padding:5px 15px;border-radius:4px;cursor:pointer;font-size:0.9em;}
.update-btn:hover{background:#333;}.update-btn.secondary{background:transparent;color:#000;border:1px solid #000;}

/* Item Picker Styles */       
.picker-category { margin-bottom: 8px; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.picker-cat-header { 
    background: #333; padding: 10px 15px; cursor: pointer; 
    display: flex; justify-content: space-between; align-items: center;
    font-weight: bold;
}
.picker-cat-header:hover { background: #444; }
.picker-cat-header .arrow { transition: transform 0.2s; font-size: 0.8em; }
.picker-category.collapsed .picker-cat-header .arrow { transform: rotate(-90deg); }
.picker-category.collapsed .picker-grid { display: none; }

.picker-grid { 
    display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); 
    gap: 8px; padding: 12px; background: #252525; 
}
.picker-item { 
    background: #3a3a3a; border: 1px solid #444; padding: 10px 5px; 
    border-radius: 4px; text-align: center; cursor: pointer; 
    font-size: 0.9em; transition: 0.2s; display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.picker-item:hover { background: var(--accent); border-color: #fff; color: #fff; transform: translateY(-2px); }
.picker-item.active { border-color: var(--accent); background: #2e3d30; box-shadow: inset 0 0 5px var(--accent); }

.editor-container { max-width: 1400px; margin: 0 auto; height: 100%; display: flex; flex-direction: column; }
#json-editor { flex: 1; background: #151515; color: #a5d6a7; font-family: 'Consolas', 'Courier New', monospace; border: 1px solid #444; padding: 15px; resize: none; line-height: 1.4; white-space: pre; }
.editor-toolbar { margin-bottom: 10px; display: flex; gap: 10px; }
button.save-btn { width: 100%; margin-top: 10px; background: #333; border: 1px solid var(--accent); color: var(--accent); padding: 8px; cursor: pointer; font-weight: bold; font-size: 0.9em; }
button.save-btn:hover { background: var(--accent); color: white; }
button.reset-btn { width: 100%; margin-top: 15px; background: transparent; border: 1px solid var(--danger); color: var(--danger); font-size:0.8em; padding: 5px; cursor: pointer; }
button.reset-btn:hover { background: var(--danger); color: white; }


/* ==========================================================================
    SECTION: CAULDRON VIEW STYLES
    ========================================================================== */
.cauldron-grid { display: grid; grid-template-columns: 280px 1fr 350px; gap: 15px; height: 100%; }
.scroll-panel { display: flex; flex-direction: column; max-height: 100%; }
.candidate-list { flex: 1; overflow-y: auto; margin-top: 10px; border: 1px solid #444; background: #222; padding: 5px; }
.candidate-item { display: flex; align-items: center; padding: 4px 8px; border-bottom: 1px solid #333; font-size: 0.9em; }
.cand-name { flex: 1; margin-left: 4px; }
.cand-cost { color: var(--gold); font-family: monospace; }
.cauldron-tabs-row {
    display: flex;
    gap: 2px;
    background: #222;
    padding: 2px;
    border-radius: 4px;
    margin-bottom: 10px;
}
.mini-tab {
    flex: 1;
    padding: 4px 2px !important;
    text-align: center;
    border: none !important;
}
.mini-tab.active {
    background: var(--accent) !important;
    color: white !important;
}

.cauldron-filter-bar { display: flex; gap: 15px; align-items: center; background: #252525; padding: 8px; border-radius: 4px; margin-bottom: 10px; }
.filter-group { display: flex; gap: 10px; align-items: center; }
.mini-picker { background: #333; border: 1px solid #555; padding: 4px 10px; border-radius: 4px; font-size: 0.9em; cursor: pointer; min-width: 100px; text-align: center; }
.mini-picker.active { border-color: var(--info); color: var(--info); background: rgba(33, 150, 243, 0.1); }

.results-scroll { overflow-y: auto; max-height: calc(100vh - 180px); margin-top: 10px; }

.cauldron-card { margin-bottom: 3px; margin-left: 0px; padding: 0px 0; border-left: none !important; }
.cauldron-card.collapsed .node-children { display: none; }
.cauldron-card .node-content { cursor: pointer; background: #333; margin-bottom: 2px; }
.cauldron-card .node-children { border-left: 2px solid #444; margin-left: 10px; }

.cauldron-recipe-row { display: flex; justify-content: space-between; align-items: center; padding: 6px 12px; background: #2a2a2a; border-bottom: 1px solid #333; font-size: 0.9em; }
.cauldron-recipe-row:hover { background: #333; }
.recipe-text { display: flex; align-items: center; gap: 2px; flex-wrap: wrap; font-size:1.0em; }

.fav-recipe-item { display: flex; justify-content: space-between; align-items: center; background: #333; padding: 8px; border-radius: 4px; margin-bottom: 5px; font-size: 0.9em; }

#unattainable-list .picker-item { background: rgba(244, 67, 54, 0.05); border: 1px dashed #552222; }

.btn-fav { background: transparent; border: 1px solid var(--info); color: var(--info); border-radius: 4px; font-size: 0.8em; cursor: pointer; padding: 2px 8px; }
.btn-fav:hover { background: rgba(33, 150, 243, 0.1); }
.btn-fav.active { background: var(--info); color: white; font-weight: bold; }

.compact-grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)) !important; gap: 5px !important; }