@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--bg: #f4f5f7;--surface: #ffffff;--surface-2: #f8f9fb;--border: #e3e6eb;--border-strong: #cfd4dc;--ink: #1b2330;--muted: #5d6776;--faint: #69707a;--accent: #1f5fbf;--accent-hover: #194f9f;--accent-weak: #e8f0fb;--danger: #c93636;--danger-weak: #fdeeee;--warn: #b7791f;--warn-weak: #fdf5e6;--ok: #2f8a4c;--viewport: #cfe4f6;--radius: 8px;--radius-sm: 6px;--shadow: 0 1px 2px rgba(16,24,40,.06);--font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Arial, sans-serif}*{box-sizing:border-box}[hidden]{display:none!important}html,body{height:100%;margin:0}body{font-family:var(--font);font-size:14px;line-height:1.45;color:var(--ink);background:var(--bg);display:flex;flex-direction:column;min-height:100vh;-webkit-font-smoothing:antialiased}h2{font-size:16px;font-weight:600;margin:0 0 12px}h3{font-size:13px;font-weight:600;margin:16px 0 8px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}header.site-header{background:var(--surface);border-bottom:1px solid var(--border)}.header-inner{max-width:1600px;margin:0 auto;height:56px;padding:0 16px;display:flex;align-items:center;gap:12px}header .logo{height:36px;width:auto;display:block;border-radius:4px}header .brand{font-size:16px;font-weight:600;letter-spacing:-.01em}header .brand-sub{color:var(--faint);font-weight:500;font-size:13px}header .header-actions{margin-left:auto;display:flex;gap:8px;position:relative}.contact-pop{position:absolute;right:0;top:calc(100% + 8px);z-index:20;width:min(320px,calc(100vw - 32px));padding:14px 16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 8px 24px #10182824}.contact-pop p{margin:4px 0 10px;color:var(--muted);font-size:13px}.contact-email{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px 6px 6px 10px;background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm)}.contact-email span{font-weight:500;overflow-wrap:anywhere;-webkit-user-select:all;user-select:all}.contact-mailto{display:inline-block;margin-top:10px;font-size:13px;color:var(--accent)}.contact-pop strong{display:block;margin-bottom:10px}.settings-form label{display:flex;align-items:center;justify-content:space-between;gap:10px}.settings-form label>span{color:var(--muted);font-size:13px}main.page{flex:1 0 auto;width:100%;max-width:1600px;margin:0 auto;padding:16px;display:grid;grid-template-columns:minmax(360px,420px) minmax(0,1fr);gap:16px;align-items:start}@media (max-width: 1000px){main.page{grid-template-columns:1fr}}aside.left,section.right{min-width:0}section.right{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:12px;display:flex;flex-direction:column}.tabs{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.tablist{display:flex;gap:4px;padding:0 12px;border-bottom:1px solid var(--border);overflow-x:auto}.tab{appearance:none;background:none;border:none;border-bottom:2px solid transparent;margin-bottom:-1px;padding:12px 8px;font:inherit;font-weight:500;color:var(--muted);cursor:pointer;white-space:nowrap}.tab:hover{color:var(--ink)}.tab[aria-selected=true]{color:var(--accent);border-bottom-color:var(--accent)}.tab:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}.tabpanel{display:none;padding:16px}.tabpanel.active{display:block}.toolbar{display:flex;gap:8px;align-items:center;margin-bottom:8px;flex-wrap:wrap}.toolbar .hint{margin-left:auto;font-size:12px;color:var(--faint)}.toolbar-note{font-size:12px;font-weight:500;color:var(--accent);background:var(--accent-weak);border-radius:var(--radius-sm);padding:3px 8px;font-variant-numeric:tabular-nums}.toolbar .hint kbd{font-family:inherit;font-size:11px;font-weight:600;padding:1px 5px;border:1px solid var(--border-strong);border-bottom-width:2px;border-radius:4px;background:var(--surface-2);color:var(--muted)}.segmented{display:inline-flex;border:1px solid var(--border-strong);border-radius:var(--radius-sm);overflow:hidden}.segmented .btn{border:none;border-radius:0;border-right:1px solid var(--border-strong)}.segmented .btn:last-child{border-right:none}.segmented .btn[aria-pressed=true]{background:var(--accent-weak);color:var(--accent);font-weight:600}.viewer{width:100%;height:clamp(380px,58vh,680px);border-radius:var(--radius-sm);background:var(--viewport);overflow:hidden}.viewer{position:relative}.viewer-tip{position:absolute;z-index:2;pointer-events:none;display:flex;flex-direction:column;gap:1px;padding:6px 10px;background:#1b2330eb;color:#fff;border-radius:var(--radius-sm);font-size:12px;white-space:nowrap;box-shadow:0 4px 12px #1018282e}.viewer-tip strong{font-size:13px;font-weight:600}.viewer-tip span{color:#c9d2de;font-variant-numeric:tabular-nums}.viewer.dangerBox{outline:2px solid var(--danger);outline-offset:2px}.stats-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;margin-top:12px;background:var(--border);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}.card{background:var(--surface);padding:10px 12px}.card-title{font-size:11px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:2px}.big{font-size:18px;font-weight:600;font-variant-numeric:tabular-nums}.small{font-size:12px}.muted{color:var(--muted)}.small.muted{font-variant-numeric:tabular-nums}.progress{height:4px;background:var(--border);border-radius:2px;margin-top:6px;overflow:hidden}.bar{height:100%;width:0%;background:var(--accent);transition:width .3s ease}.card-row{grid-column:1 / -1;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--border)}@media (max-width: 700px){.card-row{grid-template-columns:1fr}}@media (min-width: 1500px){.stats-grid{grid-template-columns:repeat(6,minmax(0,1fr))}}@media (max-width: 600px){.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}.cog-view{width:260px;height:260px;margin:8px auto 4px;border-radius:var(--radius-sm);background:var(--viewport);overflow:hidden}.form{display:grid;grid-template-columns:minmax(0,1fr);gap:10px}.form>label,.form>.row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0}.form>label>span,.form>.row>span{flex:0 0 150px;color:var(--muted)}.form>.align-top{align-items:flex-start}.form>.align-top>span{padding-top:3px}.checks{flex:1;display:grid;gap:6px}.check{display:flex;align-items:center;gap:8px;cursor:pointer}.check:has(input:disabled){color:var(--muted);cursor:default}.input{flex:1;min-width:0;height:34px;padding:0 10px;font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--border-strong);border-radius:var(--radius-sm);font-variant-numeric:tabular-nums}.input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-weak)}.input-narrow{max-width:140px}input[type=checkbox]{accent-color:var(--accent);width:16px;height:16px}.palette{flex:1;display:flex;flex-wrap:wrap;gap:6px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:34px;padding:0 14px;font:inherit;font-weight:500;color:var(--ink);background:var(--surface);border:1px solid var(--border-strong);border-radius:var(--radius-sm);cursor:pointer;text-decoration:none;white-space:nowrap;transition:background .15s,border-color .15s,color .15s}.btn:hover{background:var(--surface-2);border-color:var(--faint)}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn.danger{color:var(--danger)}.btn.danger:hover{background:var(--danger-weak);border-color:var(--danger)}.btn.sm{height:28px;padding:0 10px;font-size:13px}.button-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}.color-btn{width:24px;height:24px;padding:0;border-radius:50%;border:2px solid var(--surface);box-shadow:0 0 0 1px var(--border-strong);cursor:pointer}.color-btn.selected{box-shadow:0 0 0 2px var(--ink)}.list-head{display:flex;align-items:center;justify-content:space-between;margin-top:20px;padding-bottom:8px;border-bottom:1px solid var(--border)}.list{list-style:none;padding:0;margin:0}.item-row{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:8px 0;border-bottom:1px solid var(--border)}.item-info{display:flex;align-items:center;gap:8px;min-width:0}.item-text{display:flex;flex-direction:column;min-width:0}.item-text strong{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.item-text span{color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums}.dot{width:12px;height:12px;border-radius:3px;flex:0 0 auto;display:inline-block}.dot.cylinder{border-radius:50%}.dot.canister{border-radius:3px 3px 4px 4px;box-shadow:inset 0 3px #0000002e}.dot,.color-btn{outline:1px solid rgba(0,0,0,.08);outline-offset:-1px}.item-row.editing{background:var(--accent-weak);margin:0 -8px;padding-left:8px;padding-right:8px;border-radius:var(--radius-sm)}.controls{display:flex;align-items:center;gap:4px;flex:0 0 auto}.btn-sm{height:26px;min-width:26px;padding:0 8px;font:inherit;font-size:13px;color:var(--ink);background:var(--surface);border:1px solid var(--border-strong);border-radius:var(--radius-sm);cursor:pointer}.btn-sm:hover{background:var(--surface-2)}.btn-sm.danger{color:var(--danger)}.btn-sm.danger:hover{background:var(--danger-weak);border-color:var(--danger)}.qty{width:48px;height:26px;text-align:center;font:inherit;font-variant-numeric:tabular-nums;border:1px solid var(--border-strong);border-radius:var(--radius-sm)}.pill{display:inline-flex;align-items:center;gap:6px;background:var(--surface-2);border:1px solid var(--border);padding:2px 10px;border-radius:9999px;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}#legend{display:flex;flex-wrap:wrap;gap:6px}.banner{align-items:center;gap:6px;background:var(--warn-weak);color:var(--warn);border:1px solid #f0d9a8;padding:8px 12px;border-radius:var(--radius-sm);margin:0 0 12px;font-weight:500}#results.danger{color:var(--danger)}footer.site-footer{color:var(--faint);font-size:12px;padding:16px;text-align:center;flex-shrink:0}.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.section-head h2{margin:0}#libSearch{width:100%}.pick-list{margin-top:8px;max-height:320px;overflow-y:auto}.pick-list .qty{width:52px}.empty{padding:12px 0;color:var(--muted);border-bottom:1px solid var(--border)}.link{font:inherit;color:var(--accent);background:none;border:none;padding:0;cursor:pointer;text-decoration:underline}.note{font-size:12px;color:var(--muted);margin:12px 0 0}.field-note{font-size:12px;font-weight:500;color:var(--danger);background:var(--danger-weak);border-radius:var(--radius-sm);padding:6px 8px;margin:6px 0 0}.disclosure{margin-top:16px;border:1px solid var(--border);border-radius:var(--radius-sm);padding:0 12px}.disclosure>summary{cursor:pointer;padding:10px 0;font-weight:600;list-style-position:inside}.disclosure[open]{padding-bottom:12px}.disclosure[open]>summary{border-bottom:1px solid var(--border);margin-bottom:12px}.pallet-bar{margin-bottom:10px}.pallet-summary{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 12px;margin-bottom:8px}.pallet-summary strong{font-size:15px}.pallet-summary span{color:var(--muted);font-variant-numeric:tabular-nums}.pallet-summary .warn-text{color:var(--danger);font-weight:500}.pallet-chips{display:flex;gap:6px;overflow-x:auto;padding-bottom:2px}.pallet-chip{flex:0 0 auto;display:flex;flex-direction:column;align-items:flex-start;gap:1px;padding:6px 12px;font:inherit;text-align:left;background:var(--surface);border:1px solid var(--border-strong);border-radius:var(--radius-sm);cursor:pointer}.pallet-chip:hover{background:var(--surface-2)}.pallet-chip[aria-selected=true]{border-color:var(--accent);background:var(--accent-weak);box-shadow:inset 0 0 0 1px var(--accent)}.pallet-chip .chip-title{font-weight:600;font-size:13px}.pallet-chip[aria-selected=true] .chip-title{color:var(--accent)}.pallet-chip .chip-meta{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}.stats-title:empty{display:none}.stats-title{font-weight:600;margin:12px 0 -4px;color:var(--ink)}.pricing{margin-top:20px;padding-top:4px;border-top:1px solid var(--border)}.form>label>span.inline-check{flex:1 1 auto;display:flex;align-items:center;gap:8px;color:var(--ink)}.rate-table{width:100%;table-layout:fixed;border-collapse:collapse;margin-top:12px;font-size:12px}.rate-table thead th:first-child{width:34%}.rate-table th,.rate-table td{padding:3px;text-align:left;vertical-align:middle}.rate-table thead th{color:var(--muted);font-weight:600}.rate-table th small{display:block;font-weight:400;color:var(--faint);font-size:11px}.rate-table tbody th{font-weight:600}.rate-table .input{width:100%;height:30px;padding:0 6px;font-size:13px}.rate-table .input::placeholder{color:var(--faint);font-style:italic}.price-total{color:var(--ink)!important;font-weight:600}.chip-price{color:var(--accent)!important;font-weight:500}.price-card .big{font-size:22px;margin-top:2px}.price-rows{margin:12px 0 8px;display:grid;gap:6px}.price-row{display:flex;justify-content:space-between;gap:12px;font-size:13px;border-bottom:1px dashed var(--border);padding-bottom:5px}.price-row>span:first-child{color:var(--muted)}.price-row>span:last-child{text-align:right;font-variant-numeric:tabular-nums}.price-row small{color:var(--faint);margin-left:4px}.price-hint{font-size:12px;color:var(--accent);background:var(--accent-weak);border-radius:var(--radius-sm);padding:6px 8px;margin:8px 0}.link.small{font-size:12px}.load-pallet{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:-4px 0 16px;padding:10px 12px;background:var(--accent-weak);border:1px solid #cddcf2;border-radius:var(--radius-sm)}.load-pallet-text{display:flex;flex-direction:column;min-width:0}.load-pallet-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--accent)}.load-pallet-text strong{font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.load-pallet-meta{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}.about{background:var(--surface);border-top:1px solid var(--border)}.about-inner{max-width:880px;margin:0 auto;padding:32px 16px 24px}.about h1{font-size:24px;margin:0 0 8px;letter-spacing:-.01em}.about h2{font-size:17px;margin:24px 0 8px}.about .lead{font-size:15px;color:var(--muted);margin:0}.about-grid{display:grid;grid-template-columns:3fr 2fr;gap:24px}@media (max-width: 700px){.about-grid{grid-template-columns:1fr}}.about ol,.about ul{padding-left:20px;margin:0}.about li{margin:6px 0}.about a{color:var(--accent)}.guide-links{list-style:none;padding:0!important}.guide-links li{margin:0 0 8px}.about details{border-bottom:1px solid var(--border);padding:10px 0}.about summary{cursor:pointer;font-weight:600}.about details p{margin:8px 0 2px;color:var(--muted)}.brand-link{display:flex;align-items:center;gap:12px;color:inherit;text-decoration:none}.guide{max-width:760px;margin:0 auto;padding:24px 16px 40px;font-size:15px;line-height:1.6}.guide h1{font-size:28px;line-height:1.25;margin:8px 0 12px;letter-spacing:-.015em}.guide h2{font-size:19px;margin:28px 0 8px}.guide .lead{font-size:17px;color:var(--muted)}.guide a{color:var(--accent)}.guide ul,.guide ol{padding-left:22px}.guide li{margin:4px 0}.guide table{width:100%;border-collapse:collapse;margin:12px 0;font-size:14px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}.guide th,.guide td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border);font-variant-numeric:tabular-nums}.guide thead th{background:var(--surface-2);font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}.crumbs{font-size:13px;color:var(--faint)}.crumbs a{color:var(--muted);text-decoration:none}.cta{margin:32px 0 16px;padding:18px 20px;background:var(--accent-weak);border:1px solid #cddcf2;border-radius:var(--radius)}.cta strong{font-size:16px}.cta p{margin:6px 0 12px;color:var(--ink)}.cta .btn{color:#fff}.sources,.more{font-size:13px;color:var(--muted)}body.guide-page{display:block}.top-nav{display:flex;gap:2px;margin-left:12px}.top-nav a{padding:6px 10px;border-radius:var(--radius-sm);color:var(--muted);text-decoration:none;font-weight:500}.top-nav a:hover{color:var(--ink);background:var(--surface-2)}.top-nav a[aria-current=page]{color:var(--accent);background:var(--accent-weak)}@media (max-width: 640px){.header-inner{flex-wrap:wrap;height:auto;padding-top:8px;padding-bottom:8px;row-gap:6px}.top-nav{order:3;width:100%;margin-left:0}header .brand-link .brand{font-size:15px}}.help ol{padding-left:22px}.help details{border-bottom:1px solid var(--border);padding:10px 0}.help summary{cursor:pointer;font-weight:600}.help details p{margin:8px 0 2px;color:var(--muted)}.guide-cards{display:grid;gap:12px;margin:20px 0}.guide-card{display:flex;flex-direction:column;gap:4px;padding:16px 18px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);color:var(--ink)!important;text-decoration:none}.guide-card:hover{border-color:var(--accent);box-shadow:var(--shadow)}.guide-card strong{color:var(--accent);font-size:16px}.guide-card span{color:var(--muted);font-size:14px}