:root {
  color-scheme: light;
  --bg:#f3f5f4; --surface:#fff; --surface-2:#f5f7f7; --ink:#16242f; --muted:#51616d; --line:#dde3e2;
  --accent:#c2510e; --accent-bright:#e56a19; --accent-soft:#fff0e5; --navy:#0b1d2e; --navy-text:#e8eef2;
  --positive:#116b47; --negative:#b52c2c; --notice:#fff7e9; --notice-line:#ead7b1; --notice-ink:#755017;
  --shadow:0 8px 32px rgb(11 29 46 / 4%); --radius:20px; --focus:#bf4c0a;
  font-family:"Segoe UI",system-ui,-apple-system,BlinkMacSystemFont,sans-serif; font-size:15px; line-height:1.5;
}
:root[data-theme="dark"] {
  color-scheme:dark;
  --bg:#0b1724; --surface:#112233; --surface-2:#162b3e; --ink:#e8eef2; --muted:#a4b7c6; --line:#2b4153;
  --accent:#ff9a55; --accent-bright:#e8782d; --accent-soft:#35291f; --navy:#091725; --navy-text:#e8eef2;
  --positive:#6de2ac; --negative:#ff9797; --notice:#30291f; --notice-line:#615038; --notice-ink:#f0d29c;
  --shadow:0 8px 32px rgb(0 0 0 / 9%); --focus:#ffae73;
}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:20px}body{margin:0;background:var(--bg);color:var(--ink);min-width:0}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button,select,summary{cursor:pointer}a{color:inherit;text-decoration:none}button{color:inherit}img,svg{max-width:100%}h1,h2,h3,h4,p{margin-top:0}h1,h2,h3{line-height:1.15;letter-spacing:-.035em}h1{font-size:clamp(2rem,3.8vw,3.8rem);font-weight:760;margin-bottom:20px}h2{font-size:1.55rem;font-weight:720;margin-bottom:12px}h3{font-size:1.25rem;margin-bottom:10px}h4{font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}p{margin-bottom:16px}small{font-size:.8rem}strong{font-weight:650}button:disabled{cursor:wait;opacity:.65}a,button,input,select,summary{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--focus);outline-offset:4px}input:focus,select:focus{border-color:var(--accent)}.site-wrap{max-width:1484px;padding:20px 28px 0;margin:auto}.site-header{display:flex;align-items:center;gap:26px;border:1px solid var(--line);background:var(--surface);border-radius:20px;padding:12px 18px;box-shadow:var(--shadow)}.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}.brand img{border-radius:12px;display:block;object-fit:contain}.brand-name{font-size:1.2rem;letter-spacing:-.04em;line-height:1.2;white-space:nowrap}.brand-name strong{color:var(--accent)}.brand-product{display:block;font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;font-weight:600;color:var(--muted);margin-top:3px}.main-nav{display:flex;align-items:center;justify-content:center;gap:5px;flex:1}.main-nav a{font-size:.88rem;font-weight:600;white-space:nowrap;padding:11px 12px;border-radius:10px;color:var(--muted)}.main-nav a:hover{background:var(--surface-2);color:var(--ink)}.main-nav a[aria-current="page"]{color:var(--accent);background:var(--accent-soft)}.header-controls{display:flex;gap:8px;align-items:center}.header-controls select,.header-controls button{min-height:40px;border:1px solid var(--line);border-radius:10px;background:var(--surface-2);padding:7px 10px;font-size:.8rem}.header-controls button{min-width:66px}.preview-line{display:flex;gap:8px;align-items:center;font-size:.72rem;color:var(--muted);margin:15px 3px 23px}.preview-dot{width:6px;height:6px;flex-shrink:0;border-radius:50%;background:var(--accent-bright)}main{min-height:65vh}.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);min-width:0}.intro-grid{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(300px,1fr);gap:18px}.hero-panel{padding:34px 36px 0;position:relative;overflow:hidden;border-top:3px solid var(--accent-bright)}.eyebrow,.section-kicker{display:block;text-transform:uppercase;font-size:.7rem;letter-spacing:.14em;font-weight:700;color:var(--accent);margin-bottom:17px}.hero-panel h1{max-width:640px}.hero-description{color:var(--muted);font-size:1.02rem;max-width:620px;line-height:1.75;margin-bottom:23px}.hero-actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-bottom:32px}.button{display:inline-flex;align-items:center;justify-content:center;gap:16px;border-radius:11px;min-height:44px;padding:12px 18px;border:1px solid transparent;font-weight:650;font-size:.88rem;line-height:1.3;text-align:center;transition:background-color .15s,border-color .15s}.button-primary{background:var(--accent-bright);color:#0b1d2e;border-color:var(--accent-bright)}.button-primary:hover{background:#f18b46;border-color:#f18b46}.button-secondary{background:var(--surface-2);border-color:var(--line);color:var(--ink)}.button-secondary:hover{border-color:var(--accent)}.text-link{display:flex;gap:10px;align-items:center;font-size:.87rem;font-weight:600}.text-link:hover{color:var(--accent)}.mini-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);gap:20px;padding:20px 0 25px}.mini-stats>div{display:flex;flex-direction:column;gap:3px}.mini-stats strong{font-size:1.7rem;line-height:1.2;letter-spacing:-.04em}.mini-stats span{font-size:.76rem;color:var(--muted)}.status-panel{padding:27px;align-self:stretch;display:flex;flex-direction:column}.section-kicker{color:var(--muted);margin-bottom:24px}.status-row{display:flex;gap:12px;align-items:flex-start;margin-bottom:16px}.status-light{width:9px;height:9px;background:var(--accent-bright);border-radius:50%;margin-top:8px;flex-shrink:0;box-shadow:0 0 0 4px var(--accent-soft)}.status-light.is-good{background:var(--positive);box-shadow:0 0 0 4px color-mix(in srgb,var(--positive) 12%,transparent)}.status-label{display:block;font-size:.76rem;color:var(--muted);margin-bottom:3px}.status-row strong,.status-divider strong{display:block;font-size:.92rem;line-height:1.55}.timestamp-list{font-size:.74rem;margin:0 0 18px 21px}.timestamp-list>div{display:flex;justify-content:space-between;gap:15px;margin-bottom:6px}.timestamp-list dt{color:var(--muted)}.timestamp-list dd{margin:0;text-align:right;font-variant-numeric:tabular-nums}.status-divider{border-top:1px solid var(--line);padding-top:18px;margin-bottom:24px}.refresh-button{margin-top:auto;width:100%;font-size:.8rem}.tools-section{margin-top:32px;scroll-margin-top:25px}.section-heading{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:18px}.section-heading h2{margin-bottom:5px}.section-heading p{font-size:.87rem;color:var(--muted);margin:0}.quiet-badge{font-size:.7rem;color:var(--muted);border:1px solid var(--line);border-radius:30px;padding:6px 11px;white-space:nowrap}.tool-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}.tool-card{padding:22px;display:flex;flex-direction:column;transition:border-color .15s,transform .15s}.tool-card:hover{border-color:var(--accent);transform:translateY(-2px)}.card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.icon-box{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;flex-shrink:0;background:var(--accent-soft);border:1px solid color-mix(in srgb,var(--accent) 20%,transparent);color:var(--accent);border-radius:12px}.tool-icon{width:25px;height:25px;display:block;flex-shrink:0}.tool-index{font-size:.73rem;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--muted)}.tool-card h3{font-size:1.2rem}.tool-card p{font-size:.85rem;line-height:1.7;color:var(--muted);margin-bottom:24px}.card-link{display:flex;justify-content:space-between;gap:8px;font-size:.78rem;font-weight:650;color:var(--accent);margin-top:auto}.privacy-strip{display:flex;align-items:center;gap:15px;margin:25px 2px 8px;font-size:.78rem;color:var(--muted)}.privacy-strip strong{color:var(--ink)}.site-footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;font-size:.72rem;color:var(--muted);padding:20px 2px 25px;margin-top:36px}.site-footer a{font-weight:650;color:var(--ink)}#source-version:empty{display:none}.page-heading{margin:3px 0 24px;max-width:820px}.breadcrumb{font-size:.75rem;display:inline-flex;align-items:center;gap:12px;color:var(--muted);margin-bottom:18px}.breadcrumb:hover{color:var(--accent)}.title-row{display:flex;align-items:center;gap:14px;margin-bottom:12px}.title-row h1{font-size:2.55rem;margin:0}.page-heading p{color:var(--muted);font-size:.96rem;max-width:690px;margin:0;line-height:1.7}.calculator-layout{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:20px;align-items:start}.form-panel,.result-panel{padding:26px}.form-panel>h2{font-size:1.3rem;margin-bottom:22px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 16px}.field{display:flex;flex-direction:column;align-items:stretch;min-width:0;position:relative}.field-wide{grid-column:1/-1}.field label{font-weight:600;font-size:.8rem;margin-bottom:7px}.field input,.field select{width:100%;max-width:100%;min-width:0;border:1px solid var(--line);color:var(--ink);background:var(--surface-2);border-radius:9px;padding:10px 12px;min-height:44px}.field input[aria-invalid="true"]{border-color:var(--negative)}.field input::placeholder{color:var(--muted);opacity:1}.field small{display:block;color:var(--muted);line-height:1.55;font-size:.72rem;margin-top:7px}.field-range{font-size:.65rem;color:var(--muted);margin-top:4px;font-variant-numeric:tabular-nums}.field-range+small{margin-top:4px}.options{border:1px solid var(--line);border-radius:10px;background:var(--surface-2);padding:12px}.options summary{font-size:.79rem;font-weight:600;color:var(--muted)}.options[open] summary{margin-bottom:16px}.options .form-grid{gap:16px 12px}.options input{background:var(--surface)}.form-help{font-size:.75rem;color:var(--muted);line-height:1.7;margin-top:20px}.calculate-button{width:100%;justify-content:space-between}.form-error{font-size:.8rem;line-height:1.6;color:var(--negative);margin-top:12px}.form-error:empty{display:none}.assumptions{border-top:1px solid var(--line);padding-top:17px;margin-top:23px;font-size:.76rem;line-height:1.7;color:var(--muted)}.assumptions summary{font-weight:650;color:var(--ink)}.assumptions[open] summary{margin-bottom:16px}.assumptions p:last-child{margin-bottom:0}.assumptions ul{padding-left:20px}.assumptions li{margin-bottom:7px}.assumptions h3{font-size:.9rem;color:var(--ink);margin-top:20px}.parameter-list{margin-top:12px}.parameter-list>div{display:flex;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);padding:5px 0}.parameter-list dd{margin:0;font-variant-numeric:tabular-nums;text-align:right}.result-top .eyebrow{margin-bottom:10px}.result-top h2{font-size:1.7rem;margin-bottom:8px}.result-top p{font-size:.76rem}.result-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;background:var(--surface-2);border:1px solid var(--line);border-radius:11px;padding:14px;margin:18px 0 22px}.result-facts>div{display:flex;flex-direction:column;gap:4px}.result-facts span{font-size:.72rem;color:var(--muted)}.result-facts strong{font-size:.9rem;font-variant-numeric:tabular-nums}.metrics-block{border-top:1px solid var(--line);padding-top:18px;margin-top:22px}.metrics-block h3{font-size:1.05rem;margin-bottom:18px}.quantity-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.quantity-list{list-style:none;margin:0 0 18px;padding:0;font-size:.8rem}.quantity-list li{display:flex;justify-content:space-between;gap:12px;margin-bottom:7px;align-items:baseline}.quantity-list strong{font-variant-numeric:tabular-nums;flex-shrink:0}.money-list{font-size:.79rem;margin:0}.money-list>div{display:flex;justify-content:space-between;gap:18px;padding:8px 0;border-bottom:1px solid var(--line)}.money-list dd{margin:0;text-align:right;font-variant-numeric:tabular-nums;font-weight:600;flex-shrink:0}.money-list .net-row{border-bottom:0;font-weight:650;padding-top:12px}.positive{color:var(--positive)}.negative{color:var(--negative)}.muted{color:var(--muted)}.fine-print{color:var(--muted);font-size:.72rem;line-height:1.7;margin-top:16px;margin-bottom:0}.notice,.inline-notice{background:var(--notice);color:var(--notice-ink);border:1px solid var(--notice-line);border-radius:10px;padding:12px 14px;font-size:.78rem;line-height:1.7;margin-bottom:20px}.inline-notice{font-size:.72rem;margin:15px 0 0;padding:10px 12px}.calculator-footer{margin-top:20px}.calculator-footer .status-panel{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr) minmax(0,1.2fr) auto;align-items:center;gap:16px;padding:18px 22px}.calculator-footer .section-kicker{display:none}.calculator-footer .status-row{margin:0}.calculator-footer .timestamp-list{margin:0}.calculator-footer .status-divider{margin:0;border:0;padding:0}.calculator-footer .refresh-button{margin:0;width:auto;max-width:200px}.calculator-footer .status-label,.calculator-footer .timestamp-list{font-size:.7rem}.calculator-footer .status-row strong,.calculator-footer .status-divider strong{font-size:.79rem}.result-empty{min-height:300px;display:flex;align-items:center;justify-content:center;flex-direction:column;color:var(--muted);text-align:center;gap:14px}.result-empty h2{margin:0}.result-empty p{font-size:.9rem}.market-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:20px;align-items:start}.market-panel{padding:24px;overflow:hidden}.market-controls{display:grid;grid-template-columns:minmax(0,1fr) minmax(190px,.55fr);gap:20px;margin-bottom:18px}.market-count{font-size:.72rem;color:var(--muted);margin-bottom:12px}.table-scroll{position:relative;width:100%;overflow-x:auto;border:1px solid var(--line);border-radius:10px}.market-table{border-collapse:collapse;width:100%;font-size:.8rem}.market-table thead{background:var(--surface-2)}.market-table th,.market-table td{padding:13px 14px;text-align:right;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums}.market-table thead th{font-size:.71rem;font-weight:650;white-space:nowrap}.market-table th:first-child{text-align:left}.market-table tbody th{font-weight:600;min-width:135px}.market-table tbody td{white-space:nowrap}.market-table th small{display:block;font-size:.6rem;font-weight:400;color:var(--muted)}.market-table tbody tr:last-child th,.market-table tbody tr:last-child td{border-bottom:none}.market-table tbody tr:hover{background:var(--surface-2)}.item-name{display:block;line-height:1.4}.item-code{display:block;font-size:.59rem;color:var(--muted);font-weight:400;letter-spacing:.025em;margin-top:4px}.market-table time{font-size:.65rem;color:var(--muted)}.market-table .empty-row{text-align:center;padding:35px 15px;color:var(--muted)}.initial-loading{padding:45px;min-height:300px;display:flex;align-items:flex-start;justify-content:center;flex-direction:column}.initial-loading h1{font-size:1.9rem;max-width:700px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:absolute;left:20px;top:-100px;background:var(--ink);color:var(--surface);padding:12px;z-index:20}.skip-link:focus{top:8px}noscript p{padding:20px}input,select,button,h1,h2,h3,p,dt,dd,li,a{overflow-wrap:anywhere}
:root{--history-ai:#2464a4;--history-player:#a54116}
:root[data-theme="dark"]{--history-ai:#76c5ff;--history-player:#ffb47c}
.history-panel{min-width:0;margin:22px 0 25px;padding:22px;border:1px solid var(--line);border-radius:15px;background:var(--surface-2);overflow-wrap:anywhere}
.history-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:18px}.history-heading .section-kicker{margin-bottom:7px}.history-heading h2{font-size:1.22rem;line-height:1.35;letter-spacing:-.025em;margin:0;max-width:490px}.history-heading .quiet-badge{flex-shrink:0}
.history-controls{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:14px;margin-bottom:18px}.history-controls .field{min-width:0}.history-controls select{width:100%;max-width:100%;min-width:0;min-height:44px;text-overflow:ellipsis;background-color:var(--surface)}
.history-legend{display:flex;flex-wrap:wrap;gap:12px 25px;list-style:none;padding:0;margin:0 0 18px}.history-legend li{display:grid;grid-template-columns:28px minmax(0,1fr);align-items:center;column-gap:8px;font-size:.79rem;font-weight:650}.history-legend small{grid-column:2;font-size:.68rem;color:var(--muted);font-weight:400}.history-swatch{width:26px;border-top:3px solid var(--history-ai)}.history-swatch-player{border-color:var(--history-player);border-top-style:dashed}
.history-chart{display:block;width:100%;height:auto;overflow:visible;margin:12px 0 18px}.history-grid{stroke:var(--line);stroke-width:1}.history-tick,.history-axis{fill:var(--muted);font-family:inherit;font-size:12px}.history-axis{font-size:12px;font-weight:600}.history-series{color:var(--history-ai)}.history-series-player{color:var(--history-player)}.history-series path{fill:none;stroke:currentColor;stroke-width:2.5;stroke-linejoin:round;stroke-linecap:round;vector-effect:non-scaling-stroke}.history-series-player path{stroke-dasharray:6 5}.history-series circle{fill:currentColor}.history-gap{fill:url(#history-gap-pattern);stroke:var(--muted);stroke-opacity:.25;stroke-width:1}.history-hatch{fill:none;stroke:var(--muted);stroke-width:1;opacity:.24}
.history-state{padding:22px 0;min-height:125px;display:flex;gap:18px;align-items:center;justify-content:space-between}.history-state p{font-size:.84rem;max-width:490px;margin:0}.history-state .button{flex-shrink:0;min-height:44px}.history-loading-mark{font-size:2rem;color:var(--accent);letter-spacing:.1em}.history-source-status{font-size:.71rem;color:var(--muted);margin-bottom:14px}.history-source-status p{padding:14px 0 0;margin-bottom:0}.history-freshness{display:inline-block;border:1px solid var(--line);border-radius:7px;padding:5px 9px;background:var(--surface)}.history-source-status.is-stale .history-freshness{background:var(--notice);border-color:var(--notice-line);color:var(--notice-ink)}
.history-last-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:10px 0 16px}.history-last{display:flex;flex-direction:column;gap:5px;min-width:0;padding:13px 15px;border-radius:10px;border:1px solid var(--line);border-top:3px solid var(--history-ai);background:var(--surface)}.history-last-player{border-top-color:var(--history-player)}.history-last>strong{font-size:1.45rem;line-height:1.35;font-variant-numeric:tabular-nums;letter-spacing:-.025em}.history-last strong small{font-size:.74rem;color:var(--muted);font-weight:500}.history-last>span{font-size:.69rem;color:var(--muted)}.history-last .history-series-label{font-size:.75rem;color:var(--ink);font-weight:600}
.history-interval{font-size:.73rem;color:var(--muted);line-height:1.7;margin:0 0 8px}.history-interval strong{display:block;color:var(--ink);font-size:.72rem}.history-note{font-size:.71rem;line-height:1.65;color:var(--muted);margin:0 0 12px}.history-gap-note{margin:14px 0 0;border-top:1px solid var(--line);padding-top:12px}.history-metadata{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 18px;margin:14px 0}.history-metadata>div{min-width:0}.history-metadata dt{font-size:.7rem;font-weight:600;color:var(--muted);margin-bottom:3px}.history-metadata dd{font-size:.72rem;margin:0;line-height:1.6;font-variant-numeric:tabular-nums}.history-details{border-top:1px solid var(--line);padding-top:8px;margin:8px 0 12px}.history-details summary{font-size:.74rem;font-weight:600;padding:9px 0;min-height:40px}.history-gap-list{font-size:.72rem;line-height:1.7;padding-left:20px;max-height:220px;overflow-y:auto;margin:12px 0}
@media(max-width:600px){.history-panel{padding:16px 13px}.history-heading{gap:8px}.history-heading h2{font-size:1.05rem}.history-heading .quiet-badge{display:none}.history-controls{grid-template-columns:minmax(0,1fr);gap:10px}.history-legend{gap:10px 17px}.history-chart{margin-left:-6px;width:calc(100% + 6px);max-width:calc(100% + 6px)}.history-tick,.history-axis{font-size:17px}.history-last-grid{gap:8px}.history-last{padding:11px 10px}.history-last>strong{font-size:1.2rem}.history-metadata{grid-template-columns:minmax(0,1fr);gap:10px}.history-state{align-items:flex-start;flex-direction:column}.history-state .button{width:100%}.history-loading-mark{display:none}}
@media(max-width:340px){.history-last-grid{grid-template-columns:minmax(0,1fr)}.history-panel{padding-left:10px;padding-right:10px}.history-legend{flex-direction:column}}
@media(min-width:1500px){.hero-panel h1{font-size:3.9rem}}
@media(max-width:1150px){.site-header{gap:15px;flex-wrap:wrap}.brand{flex:1}.main-nav{order:3;flex-basis:100%;justify-content:flex-start;border-top:1px solid var(--line);padding-top:8px}.site-header{padding-bottom:8px}.main-nav a{flex:1;text-align:center}.intro-grid{grid-template-columns:minmax(0,1.45fr) minmax(270px,1fr)}.hero-panel{padding:28px 28px 0}.hero-actions{gap:17px}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.market-layout{grid-template-columns:minmax(0,1fr)}.market-layout>.status-panel{max-width:none;display:block}.market-layout .timestamp-list{margin-left:21px;max-width:450px}.market-layout .refresh-button{max-width:250px}.market-layout .status-divider{margin-bottom:16px}.calculator-footer .status-panel{grid-template-columns:repeat(2,minmax(0,1fr))}.calculator-footer .refresh-button{max-width:none;width:100%}}
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