:root{--bc-color-background: rgba(23,30,37, .8);--bc-color-background-secondary: rgba(30, 41, 59, .8);--bc-color-background-tertiary: rgba(51, 65, 85, .8);--bc-color-border-primary: rgba(51, 65, 85, .6);--bc-color-border-secondary: rgba(71, 85, 105, .6);--bc-color-border-focus: #ffffff;--bc-color-success: #10b981;--bc-color-warning: #f59e0b;--bc-color-error: #ef4444;--bc-space-xs: .25rem;--bc-space-sm: .5rem;--bc-space-md: .75rem;--bc-space-lg: 1rem;--bc-space-xl: 1.5rem;--bc-space-2xl: 2rem;--bc-space-3xl: 3rem;--bc-font-size-xs: .75rem;--bc-font-size-sm: .875rem;--bc-font-size-md: 1rem;--bc-font-size-lg: 1.125rem;--bc-font-size-xl: 1.25rem;--bc-font-size-2xl: 1.5rem;--bc-font-weight-normal: 400;--bc-font-weight-medium: 500;--bc-font-weight-semibold: 600;--bc-font-weight-bold: 700;--bc-line-height-tight: 1.25;--bc-line-height-normal: 1.5;--bc-line-height-relaxed: 1.75;--bc-radius-sm: .125rem;--bc-radius-md: .25rem;--bc-radius-lg: .375rem;--bc-radius-xl: .5rem;--tbl-border: rgba(255,255,255,.1);--tbl-header-bg: rgba(59, 130, 246, .1);--tbl-header-fg: #e5e7eb;--tbl-stub-bg: rgba(156, 163, 175, .1);--tbl-stub-fg: #9ca3af}[data-theme=light]{--bc-color-background: #ffffff;--bc-color-background-secondary: #ffffff;--bc-color-background-tertiary: #fafbfc;--bc-color-border-primary: rgba(0, 0, 0, .12);--bc-color-border-secondary: rgba(0, 0, 0, .08);--bc-color-border-focus: #000000;--tbl-border: rgba(0, 0, 0, .12);--tbl-header-bg: rgba(59, 130, 246, .06);--tbl-header-fg: #1f2937;--tbl-stub-bg: rgba(0, 0, 0, .035);--tbl-stub-fg: #64748b}@custom-media --bc-sm (min-width: 640px);@custom-media --bc-md (min-width: 768px);@custom-media --bc-lg (min-width: 1024px);@custom-media --bc-xl (min-width: 1280px);@custom-media --bc-2xl (min-width: 1536px);:root{--bulk-converter-ad-width: 300px;--bulk-converter-gap: 2rem}.bulk-converter-wide-container{width:100%;margin:0 auto;box-sizing:border-box;transition:max-width .3s ease}body.fixed-width 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.unit-badge{font-weight:600;font-family:Monaco,Menlo,monospace;font-size:.875rem;min-width:2rem;text-align:center;display:inline-block;vertical-align:middle;line-height:1;margin:0;padding:0}.columns-list .column-item .unit-name{color:#94a3b8;flex:1;display:inline-block;vertical-align:middle;line-height:1;margin:0;padding:0;font-size:.875rem;font-weight:400;transform:translateY(-1.5px)}.remove-btn{background:none;border:none;color:#64748b;cursor:pointer;font-size:1.25rem;line-height:1;padding:0;width:20px;height:20px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .2s ease}.remove-btn:hover{background:#ef44441a;color:#ef4444}@media(max-width:1024px){.refactored-bulk-grid{padding:0 .25rem;box-sizing:border-box}.bulk-converter-header{gap:.75rem}.current-columns{min-width:0}.selected-units-display{flex-wrap:wrap;gap:4px}.unit-chip{font-size:11px;padding:2px 6px}.unit-chip .remove-unit{font-size:10px;margin-left:3px}}@media(min-width:1025px){.bulk-converter-ad{max-width:var(--bulk-converter-ad-width);overflow:hidden}.bulk-converter-ad .ad-container,.bulk-converter-ad .ad-container>*,.bulk-converter-ad *{max-width:100%;box-sizing:border-box}}.selection-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem;min-height:2rem;flex-wrap:wrap;gap:.5rem}.controls{display:flex;gap:.5rem;align-items:center;flex-wrap:wrap;justify-content:flex-end}.search-input-container{position:relative;display:flex;align-items:center}.search-input{background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:4px;padding:.375rem .75rem;color:#d1d5db;font-size:.875rem;width:200px;transition:all .2s 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.75rem;cursor:pointer;transition:all .2s ease;font-size:.875rem;font-weight:500;color:#94a3b8}.category-btn.active{background:#ffffff14;border-color:#fff;color:#fff;font-weight:600}.category-btn:hover:not(.active){background:#ffffff14;border-color:#fff3;color:#d1d5db}.units-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));grid-auto-rows:minmax(44px,auto);gap:.5rem;width:100%;max-width:100%;max-height:200px;overflow-y:auto;overflow-x:hidden;padding:.3rem;background:#ffffff05;border-radius:6px;border:1px solid rgba(255,255,255,.05);height:auto;align-items:stretch;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.25) rgba(255,255,255,.05)}.units-grid:has(.unit-btn:nth-child(11)){align-items:stretch}@supports not selector(:has(*)){.units-grid[data-many-units=true]{align-items:stretch}}.unit-btn{display:flex;align-items:center;gap:.4rem;padding:.4rem .5rem;border-radius:6px;cursor:pointer;text-align:left;transition:all .2s ease;font-size:.875rem;border:1px solid;box-sizing:border-box;min-height:44px;height:100%;width:100%;position:relative}.unit-btn:not(.added){background:#ffffff0d;border-color:#ffffff1a}.unit-btn.added{background:#22c55e1a;border-color:#22c55e}.unit-btn:hover:not(.added){background:#ffffff14;border-color:#fff3}.unit-btn .unit-symbol{font-weight:600;font-family:Monaco,Menlo,monospace;font-size:.75rem;min-width:1.8rem;max-width:3rem;flex-shrink:0;line-height:1.25;padding:0;word-wrap:break-word;overflow-wrap:break-word;word-break:break-all;hyphens:none;text-align:center;display:flex;align-items:center;justify-content:center}.unit-btn .unit-symbol[data-length=medium],.unit-btn .unit-symbol.medium-symbol{font-size:.65rem;line-height:1.15}.unit-btn .unit-symbol[data-length=long],.unit-btn .unit-symbol.long-symbol{font-size:.58rem;line-height:1.1;letter-spacing:-.02em}.unit-btn .unit-symbol[data-length=very-long],.unit-btn .unit-symbol.very-long-symbol{font-size:.52rem;line-height:1.05;letter-spacing:-.03em}.unit-btn 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.unit-name.popular.added{color:#22c55e;font-weight:600}.empty-state{color:#64748b;font-style:italic;align-self:center;margin:auto}.no-results{grid-column:1 / -1;text-align:center;color:#64748b;font-style:italic;padding:2rem}.bulk-converter-header h3{margin:0;font-size:1rem;font-weight:600;color:#9ca3af}.grid-container{position:relative;width:100%;max-width:100%}.units-grid::-webkit-scrollbar{width:6px}.units-grid::-webkit-scrollbar-track{background:#ffffff0d;border-radius:3px}.units-grid::-webkit-scrollbar-thumb{background:#fff3;border-radius:3px}.units-grid::-webkit-scrollbar-thumb:hover{background:#ffffff4d}[data-theme=light] .bulk-converter-header h3{color:#334155}[data-theme=light] .section-toggle-btn:hover{background:#e2e8f0;border-color:#0000002e;color:#334155}[data-theme=light] .expand-toggle-btn{background:#f8fafc;border:1px solid rgba(0,0,0,.12);color:#64748b}[data-theme=light] .expand-toggle-btn:hover{background:#e2e8f0;border-color:#0000002e;color:#334155}[data-theme=light] 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.toggle-btn:hover:not(.active){background:#f1f5f9;border-color:#00000024;color:#334155}[data-theme=light] .category-btn{background:#fff;border:1px solid rgba(0,0,0,.12);color:#475569}[data-theme=light] .category-btn.active{background:#e2e8f0;border-color:#00000024;color:#1f2937}[data-theme=light] .category-btn:hover:not(.active){background:#f1f5f9;border-color:#00000024;color:#334155}[data-theme=light] .units-grid{background:#fff;border:1px solid rgba(0,0,0,.08);scrollbar-width:thin;scrollbar-color:rgba(0,0,0,.2) rgba(0,0,0,.05)}[data-theme=light] .unit-btn:not(.added){background:#fff;border-color:#0000001f}[data-theme=light] .unit-btn:hover:not(.added){background:#f8fafc;border-color:#00000024}[data-theme=light] .unit-btn.added{background:#22c55e14;border-color:#22c55e80}[data-theme=light] .unit-btn:not(.added) .unit-name{color:#334155}[data-theme=light] .unit-btn.added .unit-name{color:#16a34a}[data-theme=light] .unit-btn 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