:root{color-scheme:light;--bg:#f7f8f9;--surface:#ffffff;--surface-2:#f3f4f6;--surface-3:#eef0f2;--border:#e3e6ea;--border-2:#cfd4da;--ink:#111827;--ink-2:#374151;--muted:#5b6370;--muted-2:#8b929c;--accent:#0f766e;--accent-hover:#115e59;--accent-ink:#0b5a53;--accent-soft:#f0fdfa;--accent-border:#99f6e4;--warn-bg:#fffbeb;--warn-ink:#8a5a08;--warn-border:#fde68a;--radius-sm:8px;--radius:10px;--radius-lg:14px;--shadow-sm:0 1px 2px rgba(17,24,39,0.05);--shadow:0 1px 3px rgba(17,24,39,0.07),0 10px 26px rgba(17,24,39,0.05);--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;--font-num:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;--maxw:1120px}*,:after,:before{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word}h1,h2,h3,h4{line-height:1.25;margin:0 0 .5em;letter-spacing:-.015em;font-weight:650}h1{font-size:clamp(1.65rem,1.2rem + 2vw,2.25rem)}h2{font-size:clamp(1.25rem,1.1rem + .7vw,1.5rem);margin-top:1.8em}h3{font-size:1.05rem;margin-top:1.4em}p{margin:0 0 1em}strong{font-weight:650}a{color:var(--accent);text-underline-offset:2px}a:hover{color:var(--accent-hover)}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}.container{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:20px;padding-right:20px}@media (max-width:420px){.container{padding-left:16px;padding-right:16px}}.skip-link{position:absolute;left:-9999px;top:0;z-index:100;background:var(--accent);color:#fff;padding:10px 16px;border-radius:0 0 var(--radius-sm) 0;text-decoration:none}.skip-link:focus{left:0}.site-header{background:var(--surface);border-bottom:1px solid var(--border);position:-webkit-sticky;position:sticky;top:0;z-index:60}.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px}.site-title{display:inline-flex;align-items:baseline;gap:7px;min-width:0;flex:1 1 auto;padding:9px 0;font-size:1.02rem;font-weight:650;letter-spacing:-.02em;color:var(--ink);text-decoration:none}.site-title-mark{color:var(--accent);font-weight:700}.site-title-text{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.u-short{display:none}@media (max-width:480px){.site-title{font-size:.94rem;gap:5px}.site-header .container{gap:8px}.u-long{display:none}.u-short{display:inline}}@media (max-width:380px){.site-title{font-size:.9rem;gap:4px}.site-title-text{white-space:normal;line-height:1.15}.site-header .container{gap:6px}.header-nav{gap:4px}.nav-links a{padding:8px 4px;font-size:.82rem}.units-toggle button{padding:0 8px}}.header-nav{gap:8px;flex:0 0 auto}.header-nav,.nav-links{display:flex;align-items:center}.nav-links{gap:4px}.nav-links a{font-size:.9rem;color:var(--ink-2);text-decoration:none;padding:8px 10px;border-radius:var(--radius-sm)}.nav-links a:hover{background:var(--surface-2);color:var(--ink)}.units-toggle{display:inline-flex;padding:3px;gap:2px;background:var(--surface-2);border:1px solid var(--border);border-radius:999px}.units-toggle button{border:0;background:transparent;font:inherit;font-size:.82rem;color:var(--muted);cursor:pointer;padding:0 12px;min-height:34px;border-radius:999px;white-space:nowrap}@media (max-width:400px){.units-toggle button{padding:0 9px;font-size:.78rem}.nav-links a{padding:8px 6px;font-size:.86rem}}.units-toggle button[aria-pressed=true]{background:var(--surface);color:var(--ink);font-weight:600;box-shadow:var(--shadow-sm)}.hero{padding:40px 0 12px;max-width:720px}.hero h1{margin-bottom:.35em}.hero .tagline{color:var(--muted);font-size:1.08rem;line-height:1.55;margin-bottom:0}@media (max-width:600px){.hero{padding-top:28px}.hero .tagline{font-size:1rem}}.calc-layout{display:grid;grid-gap:20px;gap:20px;margin-top:24px;align-items:start}@media (min-width:960px){.calc-layout{grid-template-columns:minmax(0,1fr) 380px;gap:24px}.result-col{position:-webkit-sticky;position:sticky;top:76px}}.form-col,.result-col{min-width:0}.card{background:var(--surface);box-shadow:var(--shadow);padding:20px}.card,.mode-tabs{border:1px solid var(--border);border-radius:var(--radius-lg)}.mode-tabs{display:grid;grid-template-columns:1fr 1fr;grid-gap:8px;gap:8px;padding:5px;margin-bottom:18px;background:var(--surface-2)}.mode-tabs button{display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start;border:1px solid transparent;border-radius:var(--radius);background:transparent;padding:11px 13px;font:inherit;text-align:left;cursor:pointer;color:var(--ink-2)}.mode-tabs button:hover{background:rgba(255,255,255,.6)}.mode-tabs button[aria-selected=true]{background:var(--surface);border-color:var(--border);box-shadow:var(--shadow-sm);color:var(--ink)}.mode-tabs .tab-title{display:block;font-weight:650;font-size:.95rem}.mode-tabs .tab-sub{display:block;color:var(--muted);font-size:.78rem;line-height:1.4;margin-top:2px}fieldset{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-sm);padding:18px;margin:0 0 16px;min-width:0}legend{padding:0 8px;margin-left:-4px;font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.field,.field-row,.field-row-3{margin-bottom:15px}.field-row-3:last-child,.field-row:last-child,.field:last-child{margin-bottom:0}.field-label,.field>label{display:block;font-weight:600;font-size:.88rem;color:var(--ink-2);margin-bottom:5px}.hint{color:var(--muted);font-size:.82rem;line-height:1.55;margin:5px 0 0}fieldset>.hint{margin-top:14px}fieldset>.hint:last-child{margin-bottom:0}fieldset>.hint+.field,fieldset>.hint+.field-row,fieldset>.hint+.field-row-3{margin-top:15px}fieldset>.hint-intro{margin:0 0 16px}.field input[type=number],.field input[type=text],.field select{width:100%;min-height:44px;padding:10px 12px;font:inherit;font-size:16px;color:var(--ink);background:var(--surface);border:1px solid var(--border-2);border-radius:var(--radius);-moz-appearance:none;appearance:none;-webkit-appearance:none}.field select{padding-right:38px;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5l5-5' stroke='%236b7280' stroke-width='1.75' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 13px center}.field input:hover,.field select:hover{border-color:var(--muted-2)}.field input:focus,.field select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(15,118,110,.14);outline:none}.field-row{grid-template-columns:1fr 1fr;grid-gap:12px}.field-row,.field-row-3{display:grid;gap:12px;align-items:end}.field-row-3{grid-template-columns:repeat(3,1fr);grid-gap:12px}.field-row-3>.field,.field-row>.field{margin-bottom:0}@media (max-width:560px){.field-row,.field-row-3{grid-template-columns:1fr;gap:15px}}@media (min-width:561px) and (max-width:720px){.field-row-3{grid-template-columns:1fr 1fr}}.inline-toggle{display:inline-flex;flex-wrap:wrap;gap:2px;padding:3px;background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius)}.inline-toggle button{border:0;background:transparent;font:inherit;font-size:.82rem;color:var(--muted);cursor:pointer;padding:0 12px;min-height:36px;border-radius:var(--radius-sm)}.inline-toggle button[aria-pressed=true]{background:var(--surface);color:var(--ink);font-weight:600;box-shadow:var(--shadow-sm)}.link-btn{border:0;background:none;padding:2px 0;min-height:24px;font:inherit;font-size:inherit;color:var(--accent);cursor:pointer;text-decoration:underline;text-underline-offset:2px}.link-btn:hover{color:var(--accent-hover)}.note,.warn{font-size:.84rem;line-height:1.55;border-radius:var(--radius);padding:11px 13px;border:1px solid transparent}.note{background:var(--surface-2);border-color:var(--border);color:var(--ink-2)}.warn{background:var(--warn-bg);border-color:var(--warn-border);color:var(--warn-ink)}.badge{display:inline-block;margin-bottom:12px;padding:4px 11px;border-radius:999px;font-size:.73rem;font-weight:650;letter-spacing:.02em;background:var(--accent-soft);color:var(--accent-ink);border:1px solid var(--accent-border)}.badge.low{background:var(--warn-bg);color:var(--warn-ink);border-color:var(--warn-border)}.result-empty{color:var(--muted);font-size:.92rem;min-height:132px}.result-empty p:last-child{margin-bottom:0}.needs-list{margin:0 0 1em;padding-left:18px}.needs-list li{margin-bottom:4px}.needs-list li::marker{color:var(--accent)}.result-label{font-size:.73rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:0 0 3px}.result-range{font-size:clamp(1.75rem,1.3rem + 2vw,2.15rem);font-weight:680;letter-spacing:-.025em;line-height:1.15;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.result-mid{margin:6px 0 0;font-size:.9rem;color:var(--ink-2);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.result-mid strong{font-weight:650;color:var(--ink)}.skein-box .result-mid{opacity:.95}.skein-box .result-mid,.skein-box .result-mid strong{color:var(--accent-ink)}.result-sub{color:var(--muted);font-size:.82rem;line-height:1.5;margin:6px 0 0}.skein-box{margin:16px 0 14px;padding:14px 15px;background:var(--accent-soft);border:1px solid var(--accent-border);border-radius:var(--radius)}.skein-box .result-label{color:var(--accent-ink);opacity:.8}.skein-figure{font-size:1.45rem;font-weight:680;letter-spacing:-.02em;color:var(--accent-ink);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;line-height:1.2}.skein-figure .skein-unit{font-size:.95rem;font-weight:600}.skein-meta{font-size:.82rem;color:var(--accent-ink);margin:5px 0 0;opacity:.9}.split-bar{display:flex;height:8px;margin:18px 0 8px;border-radius:999px;overflow:hidden;background:var(--surface-3)}.split-bar span{display:block;height:100%}.split-legend{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:.76rem;color:var(--muted);margin:0}.split-legend i{display:inline-block;width:8px;height:8px;border-radius:2px;margin-right:5px;vertical-align:1px}.c-body{background:#0f766e}.c-yoke{background:#14b8a6}.c-sleeves{background:#5eead4}.c-bands{background:#cbd5e1}.c-extra{background:#94a3b8}details{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);padding:11px 13px;margin-top:10px}details summary{cursor:pointer;font-weight:600;font-size:.87rem;color:var(--ink-2);list-style:none;display:flex;align-items:center;gap:7px}details summary::-webkit-details-marker{display:none}details summary:before{content:"";flex:0 0 auto;width:6px;height:6px;border-right:1.75px solid;border-bottom:1.75px solid;transform:rotate(-45deg);margin-left:2px}details[open] summary:before{transform:rotate(45deg)}details ul{margin:10px 0 0;padding-left:20px;font-size:.84rem;color:var(--muted)}details li{margin-bottom:6px}details li:last-child{margin-bottom:0}details.details-warn{background:var(--warn-bg);border-color:var(--warn-border)}details.details-warn summary,details.details-warn ul{color:var(--warn-ink)}.result-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;padding-top:16px;border-top:1px solid var(--border)}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 16px;font:inherit;font-size:.9rem;font-weight:550;cursor:pointer;color:var(--ink-2);background:var(--surface);border:1px solid var(--border-2);border-radius:var(--radius);text-decoration:none}.btn:hover{background:var(--surface-2);color:var(--ink);border-color:var(--muted-2)}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:#fff}.btn-ghost{background:transparent;border-color:transparent;color:var(--muted)}.btn-ghost:hover{background:var(--surface-2);border-color:transparent}.btn-sm{min-height:34px;padding:6px 12px;font-size:.82rem}.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--ink);color:#fff;padding:12px 20px calc(12px + env(safe-area-inset-bottom));font-size:.9rem;line-height:1.35}.sticky-bar strong{font-weight:650;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.sticky-bar a{color:#fff;font-weight:650;white-space:nowrap;flex:0 0 auto;display:inline-flex;align-items:center;min-height:32px;padding:0 4px}@media (min-width:960px){.sticky-bar{display:none}}body:has(.sticky-bar){padding-bottom:76px}.prose{max-width:700px}.prose h2,h2[id],h3[id]{scroll-margin-top:80px}.prose p{color:var(--ink-2)}.divider{border:0;border-top:1px solid var(--border);margin:44px 0}.jump-nav{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 8px;padding:0;list-style:none}.jump-nav a{display:inline-block;font-size:.82rem;text-decoration:none;color:var(--ink-2);background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:6px 13px}.jump-nav a:hover{border-color:var(--accent);color:var(--accent)}.faq{margin:0}.faq>div{padding:18px 0;border-bottom:1px solid var(--border)}.faq>div:first-child{border-top:1px solid var(--border)}.faq dt{font-weight:650;color:var(--ink);margin-bottom:6px}.faq dd{margin:0;color:var(--ink-2)}.sources{margin:18px 0 0}.sources>div{padding:16px 0;border-top:1px solid var(--border);display:grid;grid-gap:4px 24px;gap:4px 24px}.sources>div:last-child{border-bottom:1px solid var(--border)}.sources dt{font-weight:650;color:var(--ink);font-size:.92rem}.sources dd{margin:0;color:var(--ink-2)}@media (min-width:680px){.sources>div{grid-template-columns:190px minmax(0,1fr);align-items:baseline}}.breadcrumbs{font-size:.82rem;color:var(--muted);margin:18px 0 6px}.breadcrumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0}.breadcrumbs li+li:before{content:"/";margin-right:6px;color:var(--border-2)}.breadcrumbs a{color:var(--muted);text-decoration:none}.breadcrumbs a:hover{color:var(--accent);text-decoration:underline}.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface)}.table-scroll:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.table-units{display:flex;align-items:center;flex-wrap:wrap;gap:8px 12px;margin:20px 0 12px;font-size:.85rem;color:var(--muted)}.scroll-cue{display:none;margin:0 0 8px}@media (max-width:860px){.scroll-cue{display:block}}.data-table{border-collapse:collapse;width:100%;font-size:.88rem}.data-table td,.data-table th{border-bottom:1px solid var(--border);padding:10px 14px;text-align:left;white-space:nowrap}.data-table thead th{background:var(--surface-2);font-weight:650;color:var(--ink)}.data-table tbody tr:last-child td,.data-table tbody tr:last-child th{border-bottom:0}.data-table tbody tr:hover td,.data-table tbody tr:hover th{background:var(--surface-2)}.data-table .num{font-feature-settings:"tnum";font-variant-numeric:tabular-nums;color:var(--ink-2)}.yardage-table tbody th{font-weight:650;color:var(--ink)}.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}.site-footer{margin-top:64px;padding:32px 0 44px;background:var(--surface);border-top:1px solid var(--border);color:var(--muted);font-size:.85rem}.footer-top{display:flex;flex-wrap:wrap;gap:12px 28px;align-items:baseline;justify-content:space-between;padding-bottom:20px;margin-bottom:20px;border-bottom:1px solid var(--border)}.footer-brand{font-weight:650;color:var(--ink);font-size:.95rem}.footer-nav{display:flex;flex-wrap:wrap;gap:8px 22px;margin:0;padding:0;list-style:none}.footer-nav a{display:inline-block;padding:5px 0;color:var(--muted);text-decoration:none}.footer-nav a:hover{color:var(--accent);text-decoration:underline}.footer-note{max-width:760px;margin:0;line-height:1.6}.print-only{display:none}.print-title{font-size:1.2rem;font-weight:650;margin:0 0 .5em}@media print{body{background:#fff;padding-bottom:0}.badge,.divider,.form-col,.hero,.mode-tabs,.no-print,.prose,.result-actions,.site-footer,.site-header,.split-bar,.split-legend,.sticky-bar,details,form{display:none!important}.calc-layout,.print-only{display:block}.card{box-shadow:none;border:1px solid #999}.result-col{position:static}}@media (prefers-reduced-motion:no-preference){.btn,.field input,.field select,.inline-toggle button,.jump-nav a,.mode-tabs button,.units-toggle button{transition:background-color .12s ease,border-color .12s ease,color .12s ease,box-shadow .12s ease}}.not-found{padding-bottom:56px}.not-found-code{font-size:.8rem;font-weight:700;letter-spacing:.08em;color:var(--accent);margin:0 0 6px}.not-found-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.not-found-actions .btn{text-decoration:none}