/*! tailwindcss v4.3.3 | MIT License | https://tailwindcss.com */
@layer theme{:root,:host{--font-mono:var(--font-mono);--text-base:1rem;--radius-sm:.25rem;--radius-lg:.5rem;--default-font-family:var(--font-text);--default-mono-font-family:var(--font-mono);--font-display:var(--font-display)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}:root{--font-mono:var(--font-display);--wdth-title:100;--wdth-label:78;--indicator:linear-gradient(var(--accent), var(--accent)) center bottom / calc(100% - 1rem) 2px no-repeat}@media (pointer:fine) and (width>=64rem){:root{--target:var(--target-fine)}}html{background:var(--paper);color:var(--ink);font-family:var(--font-text), "Helvetica Neue", Arial, sans-serif;caret-color:var(--accent);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility;font-kerning:normal;accent-color:var(--accent);scrollbar-color:var(--rule-2) var(--paper);scroll-padding-top:5rem;font-size:100%;overflow-x:clip}body{background:var(--paper);font-size:var(--text-base);line-height:var(--leading-base);flex-direction:column;min-height:100vh;display:flex;overflow-x:clip}main{flex:1}::selection{background:var(--selection);color:var(--ink)}h1,h2,h3,h4{font-family:var(--font-display), "Arial Narrow", sans-serif;font-variation-settings:"wdth" var(--wdth-title);color:var(--ink);text-wrap:balance;overflow-wrap:break-word;scroll-margin-top:5rem}h1{font-size:var(--text-display);line-height:var(--leading-display);letter-spacing:var(--tracking-display);font-weight:700}h2{font-size:var(--text-h2);line-height:var(--leading-h2);letter-spacing:var(--tracking-h2);font-weight:650}h3{font-size:var(--text-h3);line-height:var(--leading-h3);letter-spacing:var(--tracking-h3);font-weight:650}h4{font-size:1.0625rem;font-weight:650;line-height:1.4}p,li,dd{text-wrap:pretty}strong{font-weight:600}small{font-size:var(--text-small)}a{color:inherit;text-decoration-line:underline;-webkit-text-decoration-color:var(--rule-2);-webkit-text-decoration-color:var(--rule-2);text-decoration-color:var(--rule-2);text-underline-offset:.25em;transition:text-decoration-color var(--dur-focus) var(--ease), color var(--dur-focus) var(--ease), background-color var(--dur-focus) var(--ease);text-decoration-thickness:1px}@media (hover:hover){a:hover{-webkit-text-decoration-color:var(--accent);-webkit-text-decoration-color:var(--accent);text-decoration-color:var(--accent)}}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:var(--radius-sm)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:var(--rule-2);border:2px solid var(--paper);border-radius:var(--radius)}::-webkit-scrollbar-track{background:var(--paper)}:focus:not(:focus-visible){outline:none}table{border-collapse:collapse;font-variant-numeric:tabular-nums;width:100%}th{text-align:left;font-weight:600}code,kbd,samp{font-family:ui-monospace,Menlo,monospace;font-size:.875em}hr{border:0;border-top:1px solid var(--rule)}img{max-width:100%;height:auto}svg{overflow:visible}button{cursor:pointer}input,select,button,textarea{font:inherit;color:inherit}::placeholder{color:var(--ink-3);opacity:1}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:50;background:var(--control-on);color:var(--control-on-text);border-radius:var(--radius);font-size:var(--text-small);padding:.6rem 1rem;font-weight:600;text-decoration:none;position:absolute;top:-4rem;left:1rem}.skip-link:focus{top:1rem}}@layer drawing{.ink,.hull-line{fill:none;stroke:var(--ink);stroke-width:1.25px;stroke-linejoin:round;stroke-linecap:round;vector-effect:non-scaling-stroke}.ink-thin{fill:none;stroke:var(--ink);stroke-width:.75px;stroke-linecap:round;vector-effect:non-scaling-stroke}.ink-faint{fill:none;stroke:var(--ink-3);stroke-width:.6px;vector-effect:non-scaling-stroke}.hidden-line{fill:none;stroke:var(--ink-3);stroke-width:.75px;stroke-dasharray:4 3;vector-effect:non-scaling-stroke}.station{fill:none;stroke:var(--station);stroke-width:.6px;vector-effect:non-scaling-stroke}.hull{fill:var(--hull);stroke:var(--ink);stroke-width:1.25px;stroke-linejoin:round;vector-effect:non-scaling-stroke}.hull-wet{fill:var(--hull-wet)}.deck{fill:var(--deck);stroke:var(--ink);stroke-width:1.25px;stroke-linejoin:round;vector-effect:non-scaling-stroke}.deck-line{fill:none;stroke:var(--ink);stroke-width:1.25px;stroke-linejoin:round;vector-effect:non-scaling-stroke}.sole{fill:var(--sole);stroke:var(--ink);stroke-width:.9px;vector-effect:non-scaling-stroke}.fitting{fill:var(--fitting);stroke:var(--ink);stroke-width:1.1px;stroke-linejoin:round;vector-effect:non-scaling-stroke}.fitting-dark{fill:var(--ink);stroke:var(--ink);stroke-width:1px}.glass{fill:var(--glass);stroke:var(--ink);stroke-width:1.1px;vector-effect:non-scaling-stroke}.glass-line{fill:none;stroke:var(--ink);stroke-width:3px;stroke-linecap:round}.canvas{fill:var(--canvas);stroke:var(--ink);stroke-width:1.1px;stroke-linejoin:round;vector-effect:non-scaling-stroke}.sail{fill:var(--fitting);stroke:var(--ink);stroke-width:1.1px;stroke-linejoin:round;vector-effect:non-scaling-stroke}.rig{fill:none;stroke:var(--ink);stroke-width:.8px;vector-effect:non-scaling-stroke}.rig-tube{fill:none;stroke:var(--ink);stroke-width:2.2px;stroke-linecap:round;stroke-linejoin:round}.rubrail{fill:none;stroke:var(--ink);stroke-width:3.2px;stroke-linecap:round}.sealant{fill:none;stroke:var(--ink-3);stroke-width:2.2px}.sheer-line{fill:none;stroke:var(--ink);stroke-width:2px}.arrow{fill:none;stroke:var(--ink);stroke-width:1.2px;stroke-linecap:round;stroke-linejoin:round}.water{fill:var(--water)}.wl,.dwl{fill:none;stroke:var(--accent);stroke-width:1.6px;vector-effect:non-scaling-stroke}.wl-faint{fill:none;stroke:var(--accent);stroke-width:.75px;stroke-dasharray:6 4;opacity:.7;vector-effect:non-scaling-stroke}.dim,.dim-tick{fill:none;stroke:var(--ink-2);stroke-width:.9px;vector-effect:non-scaling-stroke}.dim-ext{fill:none;stroke:var(--ink-3);stroke-width:.6px;stroke-dasharray:2 2;vector-effect:non-scaling-stroke}.dim-dot{fill:var(--ink-2)}.dim-label{font:600 13px/1 var(--font-display), "Arial Narrow", sans-serif;font-variation-settings:"wdth" var(--wdth-label);fill:var(--ink);font-variant-numeric:tabular-nums;paint-order:stroke;stroke:var(--paper);stroke-width:3px;stroke-linejoin:round}.label,.st-label,.sb-label{font:500 13px/1 var(--font-display), "Arial Narrow", sans-serif;font-variation-settings:"wdth" var(--wdth-label);font-variant-numeric:tabular-nums;fill:var(--ink-2);paint-order:stroke;stroke:var(--paper);stroke-width:3px;stroke-linejoin:round}.view-label{font:650 15px/1 var(--font-display), "Arial Narrow", sans-serif;font-variation-settings:"wdth" 76;fill:var(--ink);letter-spacing:.03em}.side-word{font:650 15px/1 var(--font-display), "Arial Narrow", sans-serif;font-variation-settings:"wdth" var(--wdth-label);fill:var(--ink-3);letter-spacing:.24em}.sb-fill{fill:var(--ink)}.sb-empty{fill:var(--paper);stroke:var(--ink);stroke-width:.75px}.sb-ft{stroke:var(--ink);stroke-width:.75px}.light-port{fill:var(--light-port)}.light-stbd{fill:var(--light-stbd)}.light-white{fill:var(--paper);stroke:var(--ink);stroke-width:.8px}.arc-port{fill:var(--arc-port);stroke:var(--light-port);stroke-width:.75px}.arc-stbd{fill:var(--arc-stbd);stroke:var(--light-stbd);stroke-width:.75px}.arc-white{fill:var(--ink)}@supports (color:color-mix(in lab, red, red)){.arc-white{fill:color-mix(in srgb, var(--ink) 5%, transparent)}}.arc-white{stroke:var(--ink-3);stroke-width:.75px;stroke-dasharray:3 3}.co-leader{fill:none;stroke:var(--ink-2);stroke-width:.75px;vector-effect:non-scaling-stroke;transition:stroke var(--dur-focus) var(--ease)}.co-dot{fill:var(--ink)}.co-disc{fill:var(--paper);stroke:var(--ink);stroke-width:1px;transition:fill var(--dur-focus) var(--ease), stroke var(--dur-focus) var(--ease)}.co-n{font:600 14px/1 var(--font-display), sans-serif;font-variation-settings:"wdth" var(--wdth-label);fill:var(--ink);text-anchor:middle;font-variant-numeric:tabular-nums;pointer-events:none}.co-name{font:600 15px/1 var(--font-text), sans-serif;fill:var(--ink);paint-order:stroke;stroke:var(--paper);stroke-width:4px;stroke-linejoin:round;pointer-events:none;display:none}.co-label{font:650 18px/1 var(--font-display), "Arial Narrow", sans-serif;font-variation-settings:"wdth" 76;letter-spacing:.05em;fill:var(--ink);paint-order:stroke;stroke:var(--paper);stroke-width:5px;stroke-linejoin:round;transition:fill var(--dur-focus) var(--ease)}.co-hit{fill:#0000;stroke:none}.co-pin{fill:var(--paper);stroke:var(--ink);stroke-width:1.5px;vector-effect:non-scaling-stroke;display:none}.co-hitpin{fill:#0000;display:none}.co-plead{fill:none;stroke:var(--ink-2);stroke-width:1px;vector-effect:non-scaling-stroke;display:none}.co-pdot{fill:var(--ink-2);display:none}.co.is-active .co-pin{fill:var(--accent);stroke:var(--accent)}.co.is-active .co-plead{stroke:var(--accent)}.co.is-active .co-pdot{fill:var(--accent)}@media screen and (width<=47.99rem){.co-label,.co-hit,.co-leader,.co-dot{display:none}.co-pin,.co-hitpin,.co-plead,.co-pdot{display:inline}}.co.is-active .co-label,.co.is-preview .co-label{fill:var(--accent-text)}.co.is-preview .co-leader{stroke:var(--accent)}a.co{cursor:pointer;text-decoration:none}a.co:focus-visible{outline:none}a.co:focus-visible .co-disc{stroke:var(--accent);stroke-width:6px}.co.is-active .co-disc{fill:var(--ink);stroke:var(--ink)}.co.is-active .co-n{fill:var(--paper)}.co.is-active .co-leader{stroke:var(--accent)}a.co:focus-visible .co-name{display:inline}@media (hover:hover) and (pointer:fine){a.co:hover .co-disc{fill:var(--ink);stroke:var(--ink)}a.co:hover .co-n{fill:var(--paper)}a.co:hover .co-leader{stroke:var(--accent)}a.co:hover .co-name{display:inline}}.co-names .is-hover .co-name,.co-names .is-active .co-name{display:inline}.co.is-active .co-dot{fill:var(--accent)}.hl-stroke,.hl-fill,.hl-ring{pointer-events:none;opacity:0;visibility:hidden;transition:opacity var(--dur-frame) var(--ease), visibility 0s linear var(--dur-frame)}.hl-stroke{fill:none;stroke:var(--accent);stroke-width:4px;stroke-linecap:round;stroke-linejoin:round}.hl-fill{fill:var(--accent-fill);stroke:var(--accent);stroke-width:1.5px;vector-effect:non-scaling-stroke}.hl-ring{fill:none;stroke:var(--accent);stroke-width:2.5px}.hl.is-active :is(.hl-stroke,.hl-fill,.hl-ring),.hl.is-preview :is(.hl-stroke,.hl-fill,.hl-ring){opacity:1;visibility:visible;transition-delay:0s}.hl.is-active .hl-stroke{opacity:.9}:is(.plate,.locator):has(.hl.is-preview) .hl.is-active:not(.is-preview) :is(.hl-stroke,.hl-fill,.hl-ring){opacity:.3}.m-group{display:none}.m-group .dim,.m-group .dim-tick{stroke:var(--accent);stroke-width:1.3px}.m-group .dim-label{fill:var(--accent-text)}.m-group .dim-dot{fill:var(--accent)}}@layer components{:root{--margin-col:minmax(17rem, 21rem) minmax(0, 1fr);--margin-gap:2.25rem}.wrap{width:100%;max-width:var(--sheet-max);padding-inline:var(--gutter);margin-inline:auto}@media (width>=48rem){.wrap{padding-inline:var(--gutter-wide)}}.reading{max-width:var(--measure)}.caps{font-family:var(--font-text), sans-serif;font-size:var(--text-label);font-weight:600;line-height:var(--leading-label);letter-spacing:0;color:var(--ink-3)}.num{font-family:var(--font-display), sans-serif;font-variant-numeric:tabular-nums}.mono{font-family:var(--font-display), sans-serif;font-variation-settings:"wdth" 90;font-variant-numeric:tabular-nums}.note{font-size:var(--text-small);color:var(--ink-2);line-height:var(--leading-small)}.on-narrow{display:none}@media screen and (width<=47.99rem){.on-wide{display:none}.on-narrow{display:inline}}.page-body>.region:first-child{margin-top:var(--space-section)}.sect{border-top:1px solid var(--rule-2);padding-top:1rem}.sect>.sect-head{margin-bottom:1.25rem}.sect-head h2{margin:0}.sect-head .note{max-width:34ch;margin-top:.4rem}.sect-head>a{min-height:var(--target);font-size:var(--text-small);align-items:center;margin-top:.25rem;font-weight:600;display:inline-flex}@media (width>=64rem){.sect{grid-template-columns:var(--margin-col);column-gap:var(--margin-gap);align-items:start;padding-top:1.5rem;display:grid}.sect>.sect-head{grid-area:1/1/span 20;margin-bottom:0;position:sticky;top:5rem}.sect>:not(.sect-head){grid-column:2;min-width:0}.sect>:not(.sect-head)+:not(.sect-head){margin-top:1.5rem}.sect .prose{max-width:none}.sect .prose>:where(p,h3,h4,ul:not(.shape-list),ol,blockquote){max-width:68ch}.sect-head h2{max-width:15ch}}.toc ul{margin-top:.5rem;display:grid}.toc a{min-height:2rem;font-size:var(--text-small);color:var(--ink-2);align-items:center;padding-block:.15rem;line-height:1.35;text-decoration:none;display:flex}@media (hover:hover){.toc a:hover{color:var(--ink)}}.intro{padding-top:clamp(1rem,.6rem + 1.6vw,2rem)}.intro h1{max-width:22ch;margin-top:.35rem}.answer{font-size:var(--text-lede);line-height:var(--leading-lede);color:var(--ink-2);text-wrap:pretty;max-width:46ch;margin-top:.75rem}.intro .crumbs{margin-bottom:0}main>.intro+*{margin-top:clamp(1.75rem,1.2rem + 1.5vw,2.75rem)}.crumbs{font-size:var(--text-small);color:var(--ink-3)}.crumbs ol{flex-wrap:wrap;align-items:center;gap:0 .5rem;display:flex}.crumbs li{align-items:center;gap:.5rem;display:inline-flex}.crumbs li+li:before{content:"";border-top:1.5px solid;border-right:1.5px solid;flex:none;width:.36em;height:.36em;margin-right:.15em;transform:rotate(45deg)}.crumbs a{min-height:var(--target);color:var(--ink-3);align-items:center;text-decoration:none;display:inline-flex}@media (hover:hover){.crumbs a:hover{color:var(--ink)}}.crumbs [aria-current]{min-height:var(--target);color:var(--ink);align-items:center;display:inline-flex}.region{margin-top:var(--space-section)}.region-title,.figure-head{border-bottom:1px solid var(--rule);flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:.5rem 1.5rem;margin-bottom:1.25rem;padding-bottom:.6rem;display:flex}.region-title h2,.figure-head h2{margin:0}.region-title>a{min-height:var(--target);font-size:var(--text-small);align-items:center;font-weight:600;display:inline-flex}.sheet{isolation:isolate;border:1.5px solid var(--ink-2);outline:1px solid var(--rule-2);outline-offset:-6px;background-color:var(--paper);margin:0;padding:clamp(.6rem,.3rem + 1.2vw,1.4rem);position:relative}.sheet:after{content:"";z-index:-1;pointer-events:none;background-image:linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);background-position:50%;background-size:1.5rem 1.5rem;position:absolute;inset:0}.sheet:before{content:"";pointer-events:none;background-color:var(--ink-3);--t6:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 600 10' preserveAspectRatio='none'%3E%3Cpath d='M99 0h2v10h-2zM199 0h2v10h-2zM299 0h2v10h-2zM399 0h2v10h-2zM499 0h2v10h-2z'/%3E%3C/svg%3E");--t4:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 400' preserveAspectRatio='none'%3E%3Cpath d='M0 99h10v2H0zM0 199h10v2H0zM0 299h10v2H0z'/%3E%3C/svg%3E");-webkit-mask:var(--t6) top / 100% 5px no-repeat, var(--t6) bottom / 100% 5px no-repeat, var(--t4) left / 5px 100% no-repeat, var(--t4) right / 5px 100% no-repeat;-webkit-mask:var(--t6) top / 100% 5px no-repeat, var(--t6) bottom / 100% 5px no-repeat, var(--t4) left / 5px 100% no-repeat, var(--t4) right / 5px 100% no-repeat;-webkit-mask:var(--t6) top / 100% 5px no-repeat, var(--t6) bottom / 100% 5px no-repeat, var(--t4) left / 5px 100% no-repeat, var(--t4) right / 5px 100% no-repeat;mask:var(--t6) top / 100% 5px no-repeat, var(--t6) bottom / 100% 5px no-repeat, var(--t4) left / 5px 100% no-repeat, var(--t4) right / 5px 100% no-repeat;position:absolute;inset:0}@media screen and (width<=47.99rem){.sheet{outline-offset:-4px}.sheet:before{display:none}}.drawing{width:100%;height:auto;display:block}.stamp{font-size:var(--text-label);font-variant-numeric:tabular-nums;color:var(--ink-3);flex-wrap:wrap;justify-content:flex-end;gap:.15rem 0;margin-top:.6rem;font-weight:500;line-height:1.4;display:flex}.stamp>span{border-left:1px solid var(--rule);padding:.1rem .75rem}.stamp>span:first-child{border-left:0}.stamp>span:last-child{padding-right:0}.stamp a{color:inherit;-webkit-text-decoration-color:var(--rule-2);-webkit-text-decoration-color:var(--rule-2);text-decoration-color:var(--rule-2)}@media screen and (width<=47.99rem){.stamp{clip-path:inset(-.5rem -.5rem -.5rem 1.1em);justify-content:flex-start;margin-left:-1.1em}.stamp>span{border:0;padding:0}.stamp>span:before{content:"·";text-align:center;width:1.1em;color:var(--ink-3);display:inline-block}}:is(.btn,.input,.seg label,.hs-seg label,.choices button,.hull-pick label,.theme-toggle,.nav-menu summary,.site-nav a,.gl-letters a):is(:focus-visible,:has(input:focus-visible)){outline:1px solid var(--accent);outline-offset:-1px;box-shadow:0 0 0 3px var(--ring)}.btn{min-height:var(--target);border:1px solid var(--control-line);border-radius:var(--radius);background:var(--surface);color:var(--ink);font-weight:600;font-size:var(--text-small);text-align:center;transition:background-color var(--dur-focus) var(--ease), color var(--dur-focus) var(--ease), border-color var(--dur-focus) var(--ease), box-shadow var(--dur-focus) var(--ease), transform var(--dur-focus) var(--ease);justify-content:center;align-items:center;gap:.5rem;padding:0 1rem;line-height:1.2;text-decoration:none;display:inline-flex}@media (hover:hover){.btn:hover{background-color:var(--paper-2)}}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.5;cursor:default;pointer-events:none;transform:none}.btn[aria-pressed=true]{background:var(--indicator), var(--control-on);border-color:var(--control-on);color:var(--control-on-text)}.btn svg{flex:none;width:1rem;height:1rem}.btn-ink{background:var(--control-on);border-color:var(--control-on);color:var(--control-on-text)}@media (hover:hover){.btn-ink:hover{background:var(--control-on)}@supports (color:color-mix(in lab, red, red)){.btn-ink:hover{background:color-mix(in srgb, var(--control-on) 88%, var(--paper))}}}.btn-quiet{text-decoration:underline;-webkit-text-decoration-color:var(--rule-2);-webkit-text-decoration-color:var(--rule-2);text-decoration-color:var(--rule-2);text-underline-offset:.25em;background:0 0;border-color:#0000;padding-inline:.6rem}@media (hover:hover){.btn-quiet:hover{-webkit-text-decoration-color:var(--accent);-webkit-text-decoration-color:var(--accent);text-decoration-color:var(--accent);background:0 0}}.seg{border-radius:var(--radius-lg);background:var(--paper-3);border:0;grid-template-columns:repeat(auto-fit,minmax(min(100%,6rem),1fr));gap:2px;min-width:0;margin:0;padding:3px;display:grid}.seg legend{clip:rect(0 0 0 0);width:1px;height:1px;position:absolute;overflow:hidden}.seg label{text-align:center;min-height:var(--target);border-radius:calc(var(--radius-lg) - 3px);cursor:pointer;font-size:var(--text-small);color:var(--ink-2);transition:background-color var(--dur-focus) var(--ease), color var(--dur-focus) var(--ease), border-color var(--dur-focus) var(--ease), box-shadow var(--dur-focus) var(--ease);background:0 0;border:1px solid #0000;place-items:center;padding:.35rem .65rem;font-weight:600;line-height:1.2;display:grid;position:relative}@media (hover:hover){.seg label:hover{color:var(--ink);background-color:var(--seg-on)}@supports (color:color-mix(in lab, red, red)){.seg label:hover{background-color:color-mix(in srgb, var(--seg-on) 55%, transparent)}}}.seg label:active{background-color:var(--seg-on)}@supports (color:color-mix(in lab, red, red)){.seg label:active{background-color:color-mix(in srgb, var(--seg-on) 80%, transparent)}}.seg input{opacity:0;cursor:pointer;margin:0;position:absolute;inset:0}.seg label:has(input:checked){z-index:1;border-color:var(--rule-2);background:var(--indicator), var(--seg-on);color:var(--ink)}.seg-measure{flex-wrap:wrap;display:flex}.seg-measure label{flex:4rem;padding-inline:.45rem}.seg-3{grid-template-columns:repeat(3,minmax(0,1fr))}.ctl-legend{font-weight:600;font-size:var(--text-small);line-height:var(--leading-label);color:var(--ink);margin-bottom:.5rem;padding:0;display:block}.legend-note{color:var(--ink-3);margin-left:.35rem;font-weight:400}details>summary.flex-summary,.img-twin>summary{list-style:none}.img-twin>summary::-webkit-details-marker{display:none}.img-twin>summary:before{content:"";width:.45rem;height:.45rem;transition:transform var(--dur-focus) var(--ease);border-bottom:1.5px solid;border-right:1.5px solid;flex:none;align-self:center;margin-right:.35rem;transform:rotate(-45deg)}.img-twin[open]>summary:before{transform:rotate(45deg)}.control-label{margin-bottom:.5rem;display:block}.input{width:100%;min-height:var(--target);border:1px solid var(--control-line);border-radius:var(--radius);background-color:var(--surface);color:var(--ink);font-size:var(--text-base);appearance:none;transition:border-color var(--dur-focus) var(--ease), box-shadow var(--dur-focus) var(--ease);padding:0 .75rem;line-height:1.3;display:block}select.input{cursor:pointer;background-image:linear-gradient(45deg, transparent 50%, var(--ink-3) 50% calc(50% + 1.5px), transparent calc(50% + 1.5px)), linear-gradient(-45deg, transparent 50%, var(--ink-3) 50% calc(50% + 1.5px), transparent calc(50% + 1.5px));background-position:calc(100% - 1.12rem) 55%,calc(100% - .83rem) 55%;background-repeat:no-repeat;background-size:.42rem .42rem;padding-right:2.25rem}.input[aria-invalid=true]{border-style:dashed;border-color:var(--ink)}.dtable{font-size:var(--text-small);border-collapse:separate;border-spacing:0;border:1px solid var(--rule);border-radius:var(--radius-lg)}.dtable thead th:first-child{border-top-left-radius:calc(var(--radius-lg) - 1px)}.dtable thead th:last-child{border-top-right-radius:calc(var(--radius-lg) - 1px)}.dtable th,.dtable td{border-bottom:1px solid var(--rule);vertical-align:top;padding:.65rem .85rem}.dtable tbody tr:last-child>*{border-bottom:0}.dtable thead th{font-family:var(--font-text), sans-serif;font-size:var(--text-small);color:var(--ink);background:var(--paper-2);white-space:nowrap;font-weight:600}.dtable tbody tr{transition:background-color var(--dur-focus) var(--ease)}@media (hover:hover){.dtable tbody tr:hover{background:var(--paper-2)}@supports (color:color-mix(in lab, red, red)){.dtable tbody tr:hover{background:color-mix(in srgb, var(--paper-2) 60%, transparent)}}}.table-scroll{overflow-x:auto}.prose{max-width:var(--measure)}@media (width>=64rem){.prose{max-width:68ch;font-size:1.125rem;line-height:1.7}.prose .note,.prose small{font-size:var(--text-small)}}.prose>*+*{margin-top:1.25rem}.prose h3{margin-top:2.5rem}.prose h3+*{margin-top:.6rem}.prose ul,.prose ol{padding-left:1.5rem}.prose ul{list-style:outside}.prose ol{list-style:decimal}.prose li+li{margin-top:.5rem}.prose li::marker{color:var(--ink-3)}.prose blockquote{border-left:1px solid var(--rule-2);color:var(--ink-2);padding-left:1.25rem;font-style:italic}.pane{margin:0}.pane-cap{flex-wrap:wrap;align-items:baseline;gap:.5rem;padding-bottom:.35rem;display:flex}.pane-name{font-family:var(--font-text), sans-serif;font-size:var(--text-label);color:var(--ink);font-weight:600}.pane svg{width:100%;height:auto;display:block}.img-twin{border-top:1px solid var(--rule);margin-top:1rem}.img-twin summary{cursor:pointer;min-height:var(--target);font-weight:600;font-size:var(--text-small);flex-wrap:wrap;align-items:baseline;gap:.25rem .75rem;padding:.6rem 0;display:flex}@media (hover:hover){.img-twin summary:hover{color:var(--ink);text-decoration:underline;-webkit-text-decoration-color:var(--accent);-webkit-text-decoration-color:var(--accent);text-decoration-color:var(--accent);text-underline-offset:.25em}}.img-twin img{border:1px solid var(--rule);border-radius:var(--radius);width:100%;max-width:60rem;height:auto;display:block}.twin-links{flex-wrap:wrap;gap:.2rem 1rem;margin:.5rem 0 1rem;display:flex}.twin-links a{min-height:var(--target);font-size:var(--text-small);align-items:center;display:inline-flex}a.term{text-decoration-style:solid}.term-mark.is-live{-webkit-text-decoration:underline dotted var(--ink-3);-webkit-text-decoration:underline dotted var(--ink-3);text-decoration:underline dotted var(--ink-3);text-underline-offset:.22em;cursor:default;text-decoration-thickness:1.5px}.term-mark.is-live.is-on{color:var(--accent-text);-webkit-text-decoration-color:var(--accent);-webkit-text-decoration-color:var(--accent);text-decoration-color:var(--accent)}a.term.is-live.is-on{-webkit-text-decoration-color:var(--accent);-webkit-text-decoration-color:var(--accent);text-decoration-color:var(--accent)}.page-foot{margin-top:var(--space-section);border-top:1px solid var(--rule);font-size:var(--text-small);color:var(--ink-2);flex-wrap:wrap;align-items:center;gap:0 1.5rem;padding-top:.4rem;display:flex}.page-foot>*{min-height:var(--target);align-items:center;display:inline-flex}.chev{width:.42em;height:.42em;transition:transform var(--dur-focus) var(--ease);border-top:1.5px solid;border-right:1.5px solid;flex:none;display:inline-block;transform:rotate(45deg)}@media (hover:hover){a:hover>.chev,button:hover>.chev{transform:translate(.15em)rotate(45deg)}}.theme-toggle{width:var(--target);height:var(--target);border-radius:var(--radius);color:var(--ink-2);transition:background-color var(--dur-focus) var(--ease), color var(--dur-focus) var(--ease), box-shadow var(--dur-focus) var(--ease);background:0 0;border:1px solid #0000;flex:none;place-items:center;margin-left:.25rem;padding:0;display:grid}@media (hover:hover){.theme-toggle:hover{background:var(--paper-2);color:var(--ink)}}.theme-toggle:active{background:var(--paper-3)}.theme-toggle[hidden]{display:none}.theme-toggle svg{fill:none;stroke:currentColor;stroke-width:1.5px;stroke-linecap:round;stroke-linejoin:round}.theme-toggle[aria-pressed=true] .tt-sun,.theme-toggle[aria-pressed=false] .tt-moon{display:none}.site-mark{flex:none;display:block}.sm-tile{fill:var(--ink)}.sm-deep{fill:color-mix(in srgb, var(--ink) 86%, var(--paper))}.sm-rode{fill:none;stroke:var(--paper);stroke-width:1.6px;stroke-dasharray:1.4 1.2}.sm-anchor{fill:none;stroke:var(--paper);stroke-width:2.2px;stroke-linecap:round}.sm-flukes{fill:var(--paper)}.sm-wl{stroke:var(--accent);stroke-width:2.4px}.site-header{z-index:30;background:var(--paper);border-bottom:1px solid var(--rule);position:sticky;top:0}.header-inner{align-items:center;gap:.25rem;min-height:3.5rem;display:flex}.wordmark{font-family:var(--font-display), sans-serif;font-variation-settings:"wdth" var(--wdth-title);letter-spacing:-.02em;min-height:var(--target);align-items:center;gap:.6rem;margin-right:auto;font-size:1.125rem;font-weight:700;text-decoration:none;display:inline-flex}.wordmark span{white-space:nowrap}.site-nav{align-items:center;gap:.125rem;display:none}@media (width>=52rem){.site-nav{display:flex}.nav-menu{display:none}}.site-nav a{min-height:var(--target);border-radius:var(--radius);font-size:var(--text-small);color:var(--ink-2);white-space:nowrap;transition:color var(--dur-focus) var(--ease), background-color var(--dur-focus) var(--ease);align-items:center;padding:0 .75rem;font-weight:500;text-decoration:none;display:inline-flex;position:relative}@media (hover:hover){.site-nav a:hover{color:var(--ink);background-color:var(--paper-2)}}.site-nav .nav-site{margin-left:.6rem}.site-nav .nav-site:before{content:"";border-left:1px solid var(--rule-2);height:1.1rem;position:absolute;top:50%;left:-.4rem;translate:0 -50%}.site-nav a[aria-current=page]{color:var(--ink);font-weight:600}.site-nav a[aria-current=page]:after{content:"";background:var(--accent);height:2px;position:absolute;bottom:0;left:.5rem;right:.5rem}@media (width>=52rem) and (width<=63.99rem){.site-nav a{padding:0 .55rem}}.nav-menu{position:relative}.nav-menu summary{min-height:var(--target);font-size:var(--text-small);cursor:pointer;border-radius:var(--radius);transition:background-color var(--dur-focus) var(--ease);align-items:center;gap:.4rem;padding:0 .75rem;font-weight:600;list-style:none;display:inline-flex}.nav-menu summary::-webkit-details-marker{display:none}@media (hover:hover){.nav-menu summary:hover{background:var(--paper-2)}}.nav-menu summary svg{color:var(--ink-3);transition:transform var(--dur-focus) var(--ease)}.nav-menu[open] summary{background:var(--paper-3)}.nav-menu[open] summary svg{transform:rotate(180deg)}.nav-menu:not([open]) .nav-panel{display:none}.nav-panel{left:var(--gutter);right:var(--gutter);background:var(--surface);border:1px solid var(--control-line);border-radius:var(--radius-lg);padding:.4rem;position:fixed;top:3.75rem}.nav-panel-site{border-top:1px solid var(--rule);margin-top:.35rem;padding-top:.35rem}.nav-panel a{min-height:var(--target);border-radius:var(--radius);color:var(--ink);align-items:center;padding:0 .6rem;font-size:1rem;text-decoration:none;display:flex}@media (hover:hover){.nav-panel a:hover{background:var(--paper-2)}}.nav-panel a[aria-current=page]{background:var(--paper-2);box-shadow:inset 2px 0 0 var(--accent);font-weight:600}.site-footer{margin-top:var(--space-section);border-top:1px solid var(--rule);padding-block:2.25rem 1.5rem}.footer-inner{gap:1.75rem 2rem;display:grid}.footer-mark{min-height:var(--target);font-family:var(--font-display), sans-serif;font-variation-settings:"wdth" var(--wdth-title);letter-spacing:-.02em;align-items:center;gap:.55rem;font-size:1.125rem;font-weight:700;text-decoration:none;display:inline-flex}.footer-brand .note{max-width:30ch}.footer-pages{columns:2;column-gap:1.25rem}.footer-group{break-inside:avoid;padding-bottom:1.25rem}.footer-group>.caps{color:var(--ink);font-size:var(--text-small)}.footer-group ul{margin-top:.3rem}.footer-group a{min-height:var(--target);font-size:var(--text-small);color:var(--ink-2);align-items:center;line-height:1.3;text-decoration:none;display:flex}@media (pointer:fine) and (width>=64rem){.footer-group a{min-height:2rem}}@media (hover:hover){.footer-group a:hover{color:var(--ink)}}.footer-group a[aria-current=page]{color:var(--ink);font-weight:600}.footer-base{border-top:1px solid var(--rule);gap:.25rem 2rem;padding-top:.75rem;display:grid}.footer-links{flex-wrap:wrap;gap:0 1.25rem;display:flex}.footer-links a{min-height:var(--target);font-size:var(--text-small);color:var(--ink-2);align-items:center;font-weight:500;text-decoration:none;display:inline-flex}@media (hover:hover){.footer-links a:hover{color:var(--ink)}}.footer-links a[aria-current=page]{color:var(--ink);font-weight:600}.footer-fine{max-width:72ch;color:var(--ink-3)}@media (width>=48rem){.footer-pages{columns:3;column-gap:1.5rem}}@media (width>=64rem){.footer-inner{grid-template-columns:minmax(14rem,1fr) minmax(0,3fr);align-items:start}.footer-base{grid-column:1/-1;grid-template-columns:auto 1fr;align-items:center}.footer-fine{text-align:right;justify-self:end}}@media (width<=21.99rem){.footer-pages{columns:1}}}@layer utilities{html:not(.js) [data-js-only]{display:none}}:root{--paper:#f1f2ee;--paper-2:#e8eae4;--paper-3:#dee1da;--ink:#1e2225;--ink-2:#454b50;--ink-3:#5f666c;--rule:#d2d6cf;--rule-2:#a4aba3;--grid:#1e22250b;--accent:#c8322b;--accent-text:#a82820;--accent-wash:#c8322b1a;--accent-fill:#c8322b33;--hull:#e2e5de;--hull-wet:#d2d7ce;--deck:#eceee8;--sole:#d7dcd2;--glass:#d3d9d5;--canvas:#e3e6de;--fitting:#f7f8f5;--water:#e0e5e0;--station:#c3c9c0;--light-port:#c8322b;--light-stbd:#2e8b57;--arc-port:#c8322b21;--arc-stbd:#2e8b5721;--selection:#c8322b29;--control-on:#1e2225;--control-on-text:#f1f2ee;--surface:#fafbf8;--seg-on:#fafbf8;--control-line:#7e857e;--ring:#c8322b47;--img-filter:none;--text-hero:clamp(2.25rem, 1.5rem + 3vw, 3.75rem);--text-display:clamp(2rem, 1.7rem + 1.2vw, 2.75rem);--text-h2:clamp(1.5rem, 1.38rem + .5vw, 1.875rem);--text-h3:1.25rem;--text-figure:1.25rem;--text-title:1.25rem;--text-stat:clamp(2rem, 1.6rem + 1.5vw, 2.75rem);--text-lede:1.25rem;--text-base:1.0625rem;--text-small:.875rem;--text-label:.8125rem;--text-drawing-small:12px;--text-drawing-label:18px;--text-drawing-large:22px;--text-drawing-subject:40px;--leading-hero:1.04;--leading-display:1.1;--leading-h2:1.2;--leading-h3:1.35;--leading-title:1.3;--leading-lede:1.55;--leading-base:1.7;--leading-small:1.5;--leading-label:1.3;--tracking-hero:-.03em;--tracking-display:-.022em;--tracking-h2:-.02em;--tracking-h3:-.01em;--tracking-label:0em;--measure:66ch;--sheet-max:92rem;--gutter:1rem;--gutter-wide:2rem;--space-section:clamp(3rem, 2.2rem + 2.5vw, 5rem);--target:2.75rem;--target-fine:2.25rem;--radius-sm:4px;--radius:6px;--radius-lg:8px;--dur-frame:.15s;--dur-waterline:.2s;--dur-focus:.12s;--ease:cubic-bezier(.2, 0, 0, 1);color-scheme:light}:root[data-theme=dark]{--paper:#16191c;--paper-2:#1c2024;--paper-3:#23282d;--ink:#e5e7e2;--ink-2:#aeb3ad;--ink-3:#8d938d;--rule:#2d3236;--rule-2:#4a5157;--grid:#e5e7e20d;--accent:#ef5b4e;--accent-text:#f4786c;--accent-wash:#ef5b4e24;--accent-fill:#ef5b4e3d;--hull:#2a2f33;--hull-wet:#333a3f;--deck:#212529;--sole:#2e3439;--glass:#394046;--canvas:#2e3438;--fitting:#1d2125;--water:#252b30;--station:#384046;--light-port:#ef5b4e;--light-stbd:#4cb57f;--arc-port:#ef5b4e42;--arc-stbd:#4cb57f42;--selection:#ef5b4e3d;--control-on:#343b41;--control-on-text:#f1f2ee;--surface:#1d2125;--seg-on:#343a40;--control-line:#6b7378;--ring:#ef5b4e61;--img-filter:invert(.9) hue-rotate(180deg) saturate(.9);color-scheme:dark}:root[data-theme=light]{color-scheme:light}@media (prefers-reduced-motion:reduce){:root{--dur-frame:0s;--dur-waterline:0s;--dur-focus:0s}}@media print{:root,:root[data-theme]{--grid:transparent;--paper:#fff;--paper-2:#fff;--paper-3:#fff;--ink:#000;--ink-2:#333;--ink-3:#666;--rule:#bbb;--rule-2:#888;--accent:#000;--accent-text:#000;--accent-wash:transparent;--accent-fill:transparent;--hull:#f2f2f2;--hull-wet:#e2e2e2;--deck:#fff;--sole:#eee;--glass:#eee;--canvas:#fafafa;--fitting:#fff;--water:#f4f4f4;--station:#ccc;--light-port:#000;--light-stbd:#666;--arc-port:#00000014;--arc-stbd:#00000014;--selection:transparent;--control-on:#000;--control-on-text:#fff;--surface:#fff;--seg-on:#fff;--control-line:#888;--ring:transparent;--img-filter:none;color-scheme:light}@page{margin:14mm}html{font-size:11pt}.site-header,.site-footer,.no-print,.ad-slot,.skip-link,.btn,.seg,.plate-tools,.img-twin,.page-foot{display:none}a{text-decoration:none}.region{break-inside:avoid-page;margin-top:1.5rem}.sheet{break-inside:avoid}.sheet:before,.sheet:after{display:none}.sources a[href^=http]:after{content:" — " attr(href);color:var(--ink-2);word-break:break-all;font-size:.85em}html.print-plate main>:not(.plate),html.print-plate .plate:not(.is-printing){display:none}}