/* Modern Dark Theme - Inspired by Foundry & Factorio Calculators */
:root {
    --bg-main: #0c0f14;
    --bg-card: #151921;
    --bg-card-hover: #1c222e;
    --bg-elevated: #222837;
    --border-color: #2b3345;
    --border-light: #3b455c;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --accent-orange: #f59e0b;
    --accent-orange-hover: #d97706;
    --accent-blue: #38bdf8;
    --accent-cyan: #06b6d4;
    --accent-green: #10b981;
    --accent-purple: #a855f7;
    --danger: #ef4444;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --transition: all 0.15s ease-in-out;
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.5;
    padding: 1.5rem;
    font-size: 14px;
}

.calc-container {
    max-width: 1360px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Header */
.calc-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-card);
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.brand-logo {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--accent-orange), #ea580c);
    color: #fff;
    font-size: 24px;
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    box-shadow: 0 0 15px rgba(245, 158, 11, 0.3);
}

.brand-text h1 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

.brand-text p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 0.9rem;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-elevated);
    color: var(--text-main);
    cursor: pointer;
    transition: var(--transition);
}

.btn:hover:not(:disabled) {
    background: var(--bg-card-hover);
    border-color: var(--accent-orange);
}

.btn-primary {
    background: var(--accent-orange);
    color: #0f172a;
    border-color: var(--accent-orange);
}

.btn-primary:hover:not(:disabled) {
    background: var(--accent-orange-hover);
    border-color: var(--accent-orange-hover);
    color: #fff;
}

.btn-secondary {
    background: var(--bg-elevated);
    border-color: var(--border-light);
}

.btn-sm {
    padding: 0.35rem 0.65rem;
    font-size: 0.8rem;
}

.btn-lang {
    padding: 0.35rem 0.65rem;
    font-size: 0.8rem;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
}

.btn-lang.active {
    background: var(--accent-orange);
    color: #0f172a;
    border-color: var(--accent-orange);
}

.btn-pill {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
    border-radius: 9999px;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
}

.btn-pill.active {
    background: var(--accent-orange);
    color: #0f172a;
    border-color: var(--accent-orange);
}

.btn-toggle {
    padding: 0.4rem 0.65rem;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    font-size: 0.8rem;
}

.btn-toggle.active {
    background: var(--accent-orange);
    color: #0f172a;
    border-color: var(--accent-orange);
}

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow);
}

/* Config Grid */
.config-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1.5fr;
    gap: 1.5rem;
}

@media (max-width: 960px) {
    .config-grid {
        grid-template-columns: 1fr;
    }
}

.config-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.config-item label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.item-display-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 0.6rem 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.item-display-box:hover {
    border-color: var(--accent-orange);
}

.item-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.item-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-main);
}

/* Rate input */
.rate-input-group {
    display: flex;
    gap: 0.5rem;
}

.form-input {
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    color: var(--text-main);
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    width: 100%;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-orange);
    box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.2);
}

.form-input:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background: var(--bg-main);
}

.form-select {
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    color: var(--text-main);
    padding: 0.4rem 0.6rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    transition: var(--transition);
    width: 100%;
}

.form-select:focus {
    outline: none;
    border-color: var(--accent-orange);
}

.unit-toggle {
    display: flex;
}

.unit-toggle .btn-toggle:first-child {
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

.unit-toggle .btn-toggle:last-child {
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* Saturate Belt */
.saturate-belt-box {
    background: rgba(245, 158, 11, 0.04);
    border: 1px dashed rgba(245, 158, 11, 0.3);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.checkbox-row input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-orange);
    cursor: pointer;
}

.checkbox-label {
    cursor: pointer;
    font-size: 0.95rem;
    color: var(--accent-orange);
}

.belt-options {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.6rem;
    transition: var(--transition);
}

.belt-options.disabled {
    opacity: 0.4;
    pointer-events: none;
}

.belt-tier-select, .belt-count-select {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.sublabel {
    font-size: 0.75rem;
    color: var(--text-muted);
    min-width: 90px;
}

.belt-pills, .count-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

/* Overview Cards */
.overview-cards {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
}

@media (max-width: 1200px) {
    .overview-cards {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .overview-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .overview-cards {
        grid-template-columns: 1fr;
    }
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow);
}

.stat-icon {
    font-size: 1.75rem;
    opacity: 0.85;
}

.stat-value {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-main);
    font-family: var(--font-mono);
}

.stat-sub {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: normal;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Navigation Tabs */
.tabs-header {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--text-main);
    background: var(--bg-elevated);
}

.tab-btn.active {
    color: var(--accent-orange);
    background: rgba(245, 158, 11, 0.1);
    box-shadow: inset 0 -2px 0 var(--accent-orange);
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    box-shadow: var(--shadow);
}

.calc-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.calc-table th {
    background: var(--bg-elevated);
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.calc-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.calc-table tr:hover td {
    background: var(--bg-card-hover);
}

.font-mono {
    font-family: var(--font-mono);
}

.font-bold {
    font-weight: 600;
}

.item-cell-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Item & Machine Icon Badges */
.item-badge-wrap, .machine-badge-wrap {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.item-badge-wrap.is-fluid {
    border-color: rgba(56, 189, 248, 0.35);
    background: rgba(3, 105, 161, 0.2);
}

.item-icon-img, .machine-icon-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    image-rendering: -webkit-optimize-contrast;
    display: block;
    transition: transform 0.15s ease;
}

.item-badge-wrap:hover .item-icon-img, .machine-badge-wrap:hover .machine-icon-img {
    transform: scale(1.08);
}

/* Badge Sizes */
.size-xs {
    width: 20px;
    height: 20px;
    border-radius: 4px;
}
.size-sm {
    width: 28px;
    height: 28px;
    border-radius: 6px;
}
.size-md {
    width: 36px;
    height: 36px;
    border-radius: 8px;
}
.size-lg {
    width: 46px;
    height: 46px;
    border-radius: 10px;
}
.size-xl {
    width: 56px;
    height: 56px;
    border-radius: 12px;
}

.item-badge-fallback, .machine-badge-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-main);
    background: #334155;
}

.fluid-badge {
    background: linear-gradient(135deg, #0284c7, #0369a1);
    color: #f8fafc;
}

/* Machine Cell in Table */
.machine-cell-wrapper {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.machine-cell-info {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.machine-count-pill strong {
    font-size: 1.05rem;
    color: var(--accent-orange);
}

.machine-exact {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.machine-type-name {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.recipe-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.recipe-label-raw {
    color: var(--accent-orange);
    font-weight: 500;
}

.row-raw {
    background: rgba(245, 158, 11, 0.03);
}

.miner-speed-sub {
    font-size: 0.72rem;
    margin-top: 0.15rem;
}

/* Transport flow tags */
.transport-flow-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.25rem 0.55rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    white-space: nowrap;
}

.transport-flow-tag.flow-belt {
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.25);
    color: #fbbf24;
}

.transport-flow-tag.flow-fluid {
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.25);
    color: #38bdf8;
}

.transport-img {
    width: 18px;
    height: 18px;
    object-fit: contain;
    flex-shrink: 0;
}

/* Chips */
.chips-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 0.2rem 0.5rem;
    font-size: 0.8rem;
}

.chip-input {
    border-color: var(--border-light);
}

.chip-byproduct {
    border-color: rgba(16, 185, 129, 0.4);
    background: rgba(16, 185, 129, 0.08);
}

.chip-rate {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--text-main);
}

.chip-name {
    color: var(--text-muted);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-raw {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-orange);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-info {
    background: rgba(6, 182, 212, 0.15);
    color: var(--accent-cyan);
    border: 1px solid rgba(6, 182, 212, 0.3);
}

/* ==========================================================================
   Redesigned Production Tree View
   ========================================================================== */
.tree-wrapper {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.tree-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.tree-stats {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.tree-stats strong {
    color: var(--accent-orange);
    font-weight: 700;
}

.tree-stat-divider {
    opacity: 0.4;
}

.tree-toolbar-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.tree-toolbar-actions .btn.active {
    background: rgba(245, 158, 11, 0.15);
    border-color: var(--accent-orange);
    color: var(--accent-orange);
}

/* Tree Canvas & Hierarchy */
.tree-canvas-scroll {
    overflow-x: auto;
    overflow-y: visible;
    padding: 1.5rem 1rem 3rem 1rem;
}

.tree-root {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tree-children {
    list-style: none;
    margin: 0;
    padding: 0 0 0 2rem;
    position: relative;
    margin-left: 1.5rem;
}

/* Vertical drop line from parent card down into children branch */
.tree-children::before {
    content: '';
    position: absolute;
    top: -1.25rem;
    left: 0;
    width: 2px;
    height: 1.25rem;
    background: #475569;
}

.tree-node {
    margin: 1.25rem 0;
    position: relative;
}

/* Vertical line segment along children */
.tree-children > .tree-node::after {
    content: '';
    position: absolute;
    top: 0;
    left: -2rem;
    width: 2px;
    height: 100%;
    background: #475569;
}

/* For the last child, the vertical line stops at the horizontal branch! */
.tree-children > .tree-node:last-child::after {
    height: 30px;
}

/* Horizontal connector line to child card */
.tree-children > .tree-node::before {
    content: '';
    position: absolute;
    top: 30px;
    left: -2rem;
    width: 2rem;
    height: 2px;
    background: #475569;
}

/* Tree Node Card */
.tree-node-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    width: fit-content;
    min-width: 340px;
    max-width: 540px;
    transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
    overflow: hidden;
}

.tree-node-card:hover {
    border-color: var(--accent-orange);
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.2);
}

.tree-children > .tree-node:hover::before {
    background: var(--accent-orange);
}

/* Target Product Special Card */
.tree-target-node > .tree-node-card {
    border: 2px solid var(--accent-orange);
    box-shadow: 0 0 24px rgba(245, 158, 11, 0.25);
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.08) 0%, var(--bg-elevated) 100%);
}

/* Raw Product Special Card */
.tree-raw-node > .tree-node-card {
    border: 1px dashed rgba(245, 158, 11, 0.35);
    background: rgba(30, 41, 59, 0.6);
}

/* Card Top Row */
.tree-card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.65rem 0.9rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(0, 0, 0, 0.15);
    gap: 0.75rem;
}

.tree-card-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
    min-width: 0;
}

.tree-card-title-group {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    min-width: 0;
}

.tree-card-name-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tree-card-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tree-card-recipe {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.tree-recipe-select {
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    max-width: 280px;
}

.btn-tree-set-target {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-sm);
    padding: 0.1rem 0.35rem;
    font-size: 0.75rem;
    cursor: pointer;
    opacity: 0.6;
    transition: all 0.15s ease;
    line-height: 1;
}

.btn-tree-set-target:hover {
    opacity: 1;
    background: rgba(245, 158, 11, 0.2);
    border-color: var(--accent-orange);
    transform: scale(1.15);
}

/* Badges */
.tree-node-badge {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.15rem 0.45rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.badge-target {
    background: rgba(245, 158, 11, 0.2);
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.4);
}

.badge-intermediate {
    background: rgba(56, 189, 248, 0.15);
    color: #38bdf8;
    border: 1px solid rgba(56, 189, 248, 0.3);
}

.badge-raw {
    background: rgba(148, 163, 184, 0.15);
    color: #cbd5e1;
    border: 1px solid rgba(148, 163, 184, 0.3);
}

/* Collapse / Expand Toggle Button */
.tree-collapse-btn {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 20px;
    padding: 0.25rem 0.6rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    transition: all 0.15s ease;
    flex-shrink: 0;
}

.tree-collapse-btn:hover {
    background: rgba(245, 158, 11, 0.15);
    border-color: var(--accent-orange);
    color: var(--accent-orange);
}

.tree-collapse-btn.collapsed {
    background: rgba(245, 158, 11, 0.12);
    border-color: rgba(245, 158, 11, 0.4);
    color: var(--accent-orange);
}

.toggle-icon {
    font-weight: 800;
    font-size: 0.85rem;
}

.toggle-count {
    background: rgba(0, 0, 0, 0.3);
    padding: 0.1rem 0.35rem;
    border-radius: 10px;
    font-family: var(--font-mono);
}

/* Card Body */
.tree-card-body {
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.tree-card-rate-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.tree-rate-group {
    display: flex;
    align-items: baseline;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.tree-card-rate {
    font-size: 1.1rem;
    color: var(--accent-orange);
}

.tree-card-rate-unit {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.tree-card-ratio {
    font-size: 0.75rem;
    color: #94a3b8;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.1rem 0.4rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.tree-card-byproducts {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding-top: 0.4rem;
    border-top: 1px dashed rgba(255, 255, 255, 0.08);
    font-size: 0.75rem;
    flex-wrap: wrap;
}

.byproduct-label {
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 600;
    white-space: nowrap;
}

/* Machine Row in Tree */
.tree-card-machine {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background: rgba(0, 0, 0, 0.2);
    padding: 0.4rem 0.6rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.04);
}

.tree-machine-text {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    flex: 1;
    min-width: 0;
}

.tree-machine-count {
    font-size: 0.85rem;
}

.tree-machine-count strong {
    color: #fbbf24;
}

.tree-machine-name {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tree-card-power {
    font-size: 0.8rem;
    color: #38bdf8;
    margin-left: auto;
}

.tree-card-miner {
    background: rgba(245, 158, 11, 0.08);
    border-color: rgba(245, 158, 11, 0.25);
}

/* Raw Badge in Tree */
.tree-card-raw-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    background: rgba(0, 0, 0, 0.2);
    padding: 0.4rem 0.6rem;
    border-radius: var(--radius-sm);
}

/* Collapsed Banner */
.tree-collapsed-banner {
    margin: 0.5rem 0 0.5rem 2rem;
    padding: 0.4rem 0.8rem;
    background: rgba(245, 158, 11, 0.08);
    border: 1px dashed rgba(245, 158, 11, 0.3);
    border-radius: var(--radius-sm);
    color: var(--accent-orange);
    font-size: 0.8rem;
    cursor: pointer;
    width: fit-content;
    transition: background 0.15s ease;
}

.tree-collapsed-banner:hover {
    background: rgba(245, 158, 11, 0.15);
}

.hidden {
    display: none !important;
}

/* Settings View */
.settings-container h3 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: var(--accent-orange);
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
    .settings-grid {
        grid-template-columns: 1fr;
    }
}

.settings-item {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.settings-item label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1.5rem;
}

.modal-overlay.hidden {
    display: none;
}

.modal-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 800px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.2rem;
    font-weight: 700;
}

.btn-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.75rem;
    cursor: pointer;
    line-height: 1;
}

.btn-close:hover {
    color: var(--text-main);
}

.modal-search {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.search-input {
    font-size: 1.05rem;
    padding: 0.75rem 1rem;
}

.item-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.75rem;
    padding: 1.5rem;
    overflow-y: auto;
    max-height: 60vh;
}

.picker-item-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.6rem 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.picker-item-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-orange);
    transform: translateY(-1px);
}

.picker-item-card.selected {
    border-color: var(--accent-orange);
    background: rgba(245, 158, 11, 0.12);
}

.picker-item-text {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    gap: 0.15rem;
}

.picker-item-name {
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.picker-item-meta {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.picker-item-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.badge-mini {
    font-size: 0.65rem;
    padding: 0.05rem 0.3rem;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-muted);
}

.badge-mini.badge-fluid {
    background: rgba(56, 189, 248, 0.15);
    color: #38bdf8;
}

.item-name-group {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.item-id-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
}