/*! tailwindcss v4.3.3 | MIT License | https://tailwindcss.com */@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-space-y-reverse:0;--tw-border-style:solid;--tw-font-weight:initial;--tw-ordinal:initial;--tw-slashed-zero:initial;--tw-numeric-figure:initial;--tw-numeric-spacing:initial;--tw-numeric-fraction:initial;--tw-outline-style:solid;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:root,:host{--font-sans:-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-serif:ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--color-amber-700:oklch(55.5% .163 48.998);--color-sky-50:oklch(97.7% .013 236.62);--color-sky-200:oklch(90.1% .058 230.902);--color-sky-500:oklch(68.5% .169 237.323);--color-sky-600:oklch(58.8% .158 241.966);--color-slate-50:oklch(98.4% .003 247.858);--color-slate-200:oklch(92.9% .013 255.508);--color-slate-300:oklch(86.9% .022 252.894);--color-slate-500:oklch(55.4% .046 257.417);--color-slate-600:oklch(44.6% .043 257.281);--color-slate-900:oklch(20.8% .042 265.755);--color-white:#fff;--spacing:.25rem;--container-3xl:48rem;--container-5xl:64rem;--text-xs:.75rem;--text-xs--line-height:calc(1 / .75);--text-sm:.875rem;--text-sm--line-height:calc(1.25 / .875);--text-base:1rem;--text-base--line-height: 1.5 ;--text-lg:1.125rem;--text-lg--line-height:calc(1.75 / 1.125);--text-2xl:1.5rem;--text-2xl--line-height:calc(2 / 1.5);--text-3xl:1.875rem;--text-3xl--line-height: 1.2 ;--font-weight-semibold:600;--font-weight-bold:700;--radius-lg:.5rem;--radius-xl:.75rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@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]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color: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}small{font-size:80%}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}}@layer components;@layer utilities{.visible{visibility:visible}.fixed{position:fixed}.relative{position:relative}.static{position:static}.container{width:100%}@media(min-width:40rem){.container{max-width:40rem}}@media(min-width:48rem){.container{max-width:48rem}}@media(min-width:64rem){.container{max-width:64rem}}@media(min-width:80rem){.container{max-width:80rem}}@media(min-width:96rem){.container{max-width:96rem}}.mx-auto{margin-inline:auto}.my-6{margin-block:calc(var(--spacing) * 6)}.my-8{margin-block:calc(var(--spacing) * 8)}.mt-2{margin-top:calc(var(--spacing) * 2)}.mt-3{margin-top:calc(var(--spacing) * 3)}.mt-4{margin-top:calc(var(--spacing) * 4)}.mt-5{margin-top:calc(var(--spacing) * 5)}.mt-6{margin-top:calc(var(--spacing) * 6)}.block{display:block}.contents{display:contents}.flex{display:flex}.grid{display:grid}.hidden{display:none}.table{display:table}.w-full{width:100%}.max-w-3xl{max-width:var(--container-3xl)}.max-w-5xl{max-width:var(--container-5xl)}.max-w-none{max-width:none}.cursor-pointer{cursor:pointer}.grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.gap-2{gap:calc(var(--spacing) * 2)}.gap-3{gap:calc(var(--spacing) * 3)}.gap-6{gap:calc(var(--spacing) * 6)}:where(.space-y-1>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(var(--spacing) * var(--tw-space-y-reverse));margin-block-end:calc(var(--spacing) * calc(1 - var(--tw-space-y-reverse)))}:where(.space-y-3>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * 3) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * 3) * calc(1 - var(--tw-space-y-reverse)))}.gap-x-4{column-gap:calc(var(--spacing) * 4)}.gap-y-1{row-gap:var(--spacing)}.rounded{border-radius:.25rem}.rounded-lg{border-radius:var(--radius-lg)}.rounded-xl{border-radius:var(--radius-xl)}.border{border-style:var(--tw-border-style);border-width:1px}.border-t{border-top-style:var(--tw-border-style);border-top-width:1px}.border-b{border-bottom-style:var(--tw-border-style);border-bottom-width:1px}.border-sky-200{border-color:var(--color-sky-200)}.border-sky-600{border-color:var(--color-sky-600)}.border-slate-200{border-color:var(--color-slate-200)}.border-slate-300{border-color:var(--color-slate-300)}.bg-sky-50{background-color:var(--color-sky-50)}.bg-slate-50{background-color:var(--color-slate-50)}.bg-slate-900{background-color:var(--color-slate-900)}.bg-white{background-color:var(--color-white)}.p-3{padding:calc(var(--spacing) * 3)}.p-4{padding:calc(var(--spacing) * 4)}.p-5{padding:calc(var(--spacing) * 5)}.px-2{padding-inline:calc(var(--spacing) * 2)}.px-3{padding-inline:calc(var(--spacing) * 3)}.px-4{padding-inline:calc(var(--spacing) * 4)}.py-1{padding-block:var(--spacing)}.py-2{padding-block:calc(var(--spacing) * 2)}.py-3{padding-block:calc(var(--spacing) * 3)}.py-8{padding-block:calc(var(--spacing) * 8)}.text-left{text-align:left}.text-2xl{font-size:var(--text-2xl);line-height:var(--tw-leading,var(--text-2xl--line-height))}.text-3xl{font-size:var(--text-3xl);line-height:var(--tw-leading,var(--text-3xl--line-height))}.text-base{font-size:var(--text-base);line-height:var(--tw-leading,var(--text-base--line-height))}.text-lg{font-size:var(--text-lg);line-height:var(--tw-leading,var(--text-lg--line-height))}.text-sm{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}.text-xs{font-size:var(--text-xs);line-height:var(--tw-leading,var(--text-xs--line-height))}.font-bold{--tw-font-weight:var(--font-weight-bold);font-weight:var(--font-weight-bold)}.font-semibold{--tw-font-weight:var(--font-weight-semibold);font-weight:var(--font-weight-semibold)}.text-amber-700{color:var(--color-amber-700)}.text-slate-500{color:var(--color-slate-500)}.text-slate-600{color:var(--color-slate-600)}.text-slate-900{color:var(--color-slate-900)}.text-white{color:var(--color-white)}.tabular-nums{--tw-numeric-spacing:tabular-nums;font-variant-numeric:var(--tw-ordinal,) var(--tw-slashed-zero,) var(--tw-numeric-figure,) var(--tw-numeric-spacing,) var(--tw-numeric-fraction,)}.underline{text-decoration-line:underline}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.focus\:border-sky-500:focus{border-color:var(--color-sky-500)}.focus\:outline-none:focus{--tw-outline-style:none;outline-style:none}@media(min-width:40rem){.sm\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.sm\:grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.sm\:grid-cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}}}:root{--ink:#0f172a;--ink-dark:#020617;--muted:#475569;--paper:#fff;--paper-subtle:#f8fafc;--surface:#fff;--surface-raised:#fff;--surface-alt:#f1f5f9;--line:#e2e8f0;--line-strong:#cbd5e1;--brand:#0284c7;--brand-hover:#0369a1;--brand-light:#f0f9ff;--brand-tint:#e0f2fe;--status-ok:#059669;--status-ok-bg:#ecfdf5;--status-ok-border:#a7f3d0;--status-warn:#d97706;--status-warn-bg:#fffbeb;--status-warn-border:#fde68a;--status-danger:#dc2626;--status-danger-bg:#fef2f2;--status-danger-border:#fecaca;--sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--serif:var(--sans);color:var(--ink);background:var(--paper);font-family:var(--sans);font-synthesis:none;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}body{background:var(--paper);color:var(--ink);margin:0}a{color:inherit;text-decoration:none;transition:color .15s,border-color .15s,background-color .15s}button,input,select{font:inherit}button,a,input,select,summary{touch-action:manipulation}button{cursor:pointer}img{max-width:100%;display:block}svg{flex-shrink:0}p{line-height:1.7}h1,h2,h3,h4,p,figure{margin:0}h1,h2{font-family:var(--sans);letter-spacing:-.03em;color:var(--ink);font-weight:700;line-height:1.15}h3{letter-spacing:-.015em;color:var(--ink);font-weight:600;line-height:1.3}em{font-style:normal;font-weight:inherit;color:var(--brand)}a:hover{color:var(--brand-hover)}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--brand);outline-offset:3px}::selection{color:#0369a1;background:#bae6fd}.container{max-width:1260px;margin-inline:auto;padding-inline:32px}.eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--brand);align-items:center;gap:6px;font-size:11px;font-weight:700;line-height:1.5;display:inline-flex}.tiny-dot{background:var(--brand);border-radius:50%;width:6px;height:6px;margin-right:4px;display:inline-block}.skip{background:var(--ink);color:#fff;z-index:50;border-radius:6px;padding:14px 18px;font-weight:600;position:absolute;top:-70px;left:16px;box-shadow:0 4px 12px #00000026}.skip:focus{top:12px}.site-header{border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:40;background:#fffffff2;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:28px;height:76px;display:flex}.brand{letter-spacing:-.03em;color:var(--ink);align-items:center;gap:10px;font-size:22px;font-weight:700;display:flex}.brand-light{color:#64748b;font-weight:400}.brand-dot{color:var(--brand)}.brand-mark{color:var(--brand);justify-content:center;align-items:center;display:flex}.header-inner nav{color:#334155;align-items:center;gap:24px;font-size:14px;font-weight:500;display:flex}.header-inner nav a{border-radius:6px;padding:8px 12px;transition:all .15s}.header-inner nav a:hover{color:var(--brand-hover);background:var(--paper-subtle)}.header-cta{border:1px solid var(--line-strong);color:var(--ink);background:#fff;border-radius:6px;align-items:center;gap:8px;padding:8px 14px;font-size:13px;font-weight:500;display:flex}.header-cta:hover{border-color:var(--brand);color:var(--brand)}.button{color:#fff;background:#0284c7;border:1px solid #0000;border-radius:6px;justify-content:center;align-items:center;gap:10px;min-height:48px;padding:12px 22px;font-size:14px;font-weight:600;line-height:1.3;transition:all .15s;display:inline-flex;box-shadow:0 1px 2px #0284c733}.button:hover{color:#fff;background:#0369a1;box-shadow:0 3px 8px #0284c747}.button.light{background:var(--paper-subtle);color:var(--ink);border:1px solid var(--line);box-shadow:none}.button.light:hover{border-color:var(--line-strong);background:#f1f5f9}.text-link{color:var(--brand);align-items:center;gap:8px;font-size:14px;font-weight:600;transition:all .15s;display:inline-flex}.text-link:hover{color:var(--brand-hover)}.text-link span{transition:transform .15s;display:inline-block}.text-link:hover span{transform:translate(2px,-2px)}.section-heading{justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:28px;display:flex}.section-heading h2{color:var(--ink);margin-top:8px;font-size:clamp(28px,3.2vw,38px)}.section-heading>p{color:var(--muted);font-size:15px}.page-shell{max-width:1020px;margin:auto;padding:32px 32px 64px}.breadcrumbs{color:var(--muted);margin-bottom:28px;font-size:13px}.breadcrumbs ol{flex-wrap:wrap;align-items:center;gap:8px;margin:0;padding:0;list-style:none;display:flex}.breadcrumbs li+li:before{content:"/";color:#94a3b8;margin-right:8px}.page-heading{max-width:820px;margin-bottom:36px}.page-heading h1{margin:12px 0 16px;font-size:clamp(34px,4vw,48px)}.page-heading p{color:var(--muted);font-size:16px;line-height:1.7}.page-meta{color:var(--muted);margin-top:16px;font-size:12px;display:block}.page-meta a{color:var(--brand);text-underline-offset:3px;text-decoration:underline}.calculator{border:1px solid var(--line);background:#fff;border-radius:12px;min-width:0;margin-bottom:32px;padding:32px;box-shadow:0 4px 20px -2px #0f172a0d}.calc-top{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px;padding-bottom:16px;display:flex}.segmented{border:1px solid var(--line);background:#f1f5f9;border-radius:8px;padding:3px;display:inline-flex}.segmented button{color:var(--muted);background:0 0;border:0;border-radius:6px;padding:8px 16px;font-size:13px;font-weight:500;transition:all .15s}.segmented button[aria-pressed=true]{color:var(--ink);background:#fff;font-weight:600;box-shadow:0 1px 3px #00000014}.shape-picker{grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:24px;display:grid}.shape-picker button{border:1px solid var(--line);background:var(--paper-subtle);color:#334155;border-radius:8px;justify-content:center;align-items:center;gap:10px;padding:14px 16px;font-size:13px;font-weight:500;transition:all .15s;display:flex}.shape-picker button:hover{border-color:var(--line-strong);background:#fff}.shape-picker button[aria-pressed=true]{border-color:var(--brand);color:var(--brand-hover);box-shadow:0 0 0 1px var(--brand);background:#f0f9ff;font-weight:600}.shape-mark{border:1.5px solid;border-radius:2px;flex-shrink:0;width:24px;height:16px;display:block}.shape-mark.round{border-radius:50%;width:18px;height:18px}.shape-mark.oval{border-radius:50%}.shape-mark.kidney{border-radius:60% 35% 65% 30%;transform:rotate(-15deg)}.fields{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-block:20px;display:grid}.field label{color:#1e293b;margin-bottom:8px;font-size:13px;font-weight:600;display:block}.input-wrap{position:relative}.input-wrap input,select{border:1px solid var(--line-strong);width:100%;min-height:48px;color:var(--ink);font-variant-numeric:tabular-nums;background:#fff;border-radius:8px;padding:12px 16px;font-size:15px;transition:all .15s}.input-wrap input:focus,select:focus{border-color:var(--brand);outline:none;box-shadow:0 0 0 3px #0284c726}.input-wrap input{padding-right:64px}.input-wrap span{color:#64748b;pointer-events:none;background:#f1f5f9;border-radius:4px;padding:3px 8px;font-size:12px;font-weight:600;position:absolute;top:50%;right:14px;transform:translateY(-50%)}select{cursor:pointer;font-size:14px}input[aria-invalid=true]{border-color:var(--status-danger);background:snow}.result{border:1px solid #e2e8f0;border-top:3px solid var(--brand);background:#f8fafc;border-radius:8px;min-height:150px;margin-top:24px;padding:24px 28px}.result-number{font-family:var(--sans);color:var(--ink-dark);font-variant-numeric:tabular-nums;letter-spacing:-.03em;overflow-wrap:anywhere;margin:12px 0;font-size:42px;font-weight:800;line-height:1.15}.result-number small{color:var(--muted);letter-spacing:0;margin-left:6px;font-size:16px;font-weight:500}.result p:not(.result-number){color:#334155;font-size:14px;line-height:1.7}.result .result-note{border-top:1px solid var(--line);color:var(--muted);margin-top:16px;padding-top:14px;font-size:13px}.calc-note{color:var(--muted);margin-top:16px;font-size:13px}.assessment{margin:18px 0;padding:0;list-style:none}.assessment li{border-top:1px solid var(--line);padding:14px 0}.assessment li:first-child{border-top:0}.assessment li>div{justify-content:space-between;align-items:center;gap:12px;font-size:14px;display:flex}.assessment li>div strong{color:var(--ink);font-weight:600}.assessment p{color:var(--muted);margin-top:6px;font-size:13px}.status{text-transform:uppercase;letter-spacing:.04em;white-space:nowrap;background:var(--status-warn-bg);color:var(--status-warn);border:1px solid var(--status-warn-border);border-radius:9999px;align-items:center;padding:4px 10px;font-size:11px;font-weight:600;display:inline-flex}.status.ok{background:var(--status-ok-bg);color:var(--status-ok);border-color:var(--status-ok-border)}.alert{border:1px solid var(--status-warn-border);background:var(--status-warn-bg);color:#92400e;border-radius:8px;margin-block:14px;padding:14px 18px;font-size:14px;line-height:1.6}.next-steps{color:#fff;background:linear-gradient(135deg,#0f172a,#1e293b);border-radius:12px;justify-content:space-between;align-items:center;gap:24px;margin-block:32px 48px;padding:28px 32px;display:flex;box-shadow:0 4px 20px -2px #0f172a1f}.next-steps h2{color:#fff;margin-top:6px;font-size:24px;font-weight:700;line-height:1.25}.next-steps p{color:#94a3b8;margin-top:8px;font-size:14px}.next-steps .button{color:#fff;background:#0284c7;flex-shrink:0;font-size:14px}.next-steps .button:hover{background:#0369a1}.prose{color:#334155;max-width:760px;margin:0 auto;font-size:16px;line-height:1.8}.prose h2{color:var(--ink);margin:48px 0 20px;scroll-margin-top:24px;font-size:30px;line-height:1.25}.prose h3{color:var(--ink);margin:28px 0 12px;font-size:22px;font-weight:600}.prose p{margin:18px 0}.prose ul,.prose ol{margin:20px 0;padding-left:24px}.prose ul{list-style:outside}.prose ol{list-style:decimal}.prose li{margin-bottom:8px;padding-left:4px}.prose strong{color:var(--ink);font-weight:600}.prose a{color:var(--brand);text-underline-offset:3px;text-decoration:underline}.prose blockquote{border-left:4px solid var(--brand);color:#0369a1;background:#f0f9ff;border-radius:0 8px 8px 0;margin:24px 0;padding:12px 20px}.prose code{color:#0f172a;background:#f1f5f9;border-radius:4px;padding:2px 6px;font-size:14px}.table-scroll{border:1px solid var(--line);border-radius:8px;max-width:100%;margin:28px 0;overflow-x:auto}.prose table,.table-scroll table{border-collapse:collapse;width:100%;font-size:14px;line-height:1.6}.prose table{margin-block:20px}.table-scroll table{margin:0}.prose th,.prose td,.table-scroll th,.table-scroll td{border-bottom:1px solid var(--line);text-align:left;min-width:110px;padding:14px 18px}.prose th,.table-scroll th{color:var(--ink);background:#f8fafc;font-weight:600}.table-scroll caption{text-align:left;color:var(--muted);border-bottom:1px solid var(--line);background:#f8fafc;padding:14px 18px;font-size:13px}.faq{max-width:760px;margin:56px auto}.faq h2{margin:12px 0 24px;font-size:32px}.faq details{border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;color:var(--ink);justify-content:space-between;align-items:center;gap:20px;padding:20px 0;font-size:16px;font-weight:600;line-height:1.5;list-style:none;display:flex}.faq summary::-webkit-details-marker{display:none}.faq summary span{color:var(--brand);font-size:20px;transition:transform .2s}.faq details[open] summary span{transform:rotate(45deg)}.faq details p{color:var(--muted);padding:0 28px 20px 0;font-size:15px;line-height:1.7}.sources{border:1px solid var(--line);background:#f8fafc;border-radius:8px;max-width:760px;margin:48px auto;padding:28px;font-size:14px}.sources h2{margin-bottom:12px;font-size:22px}.sources ul{padding:0;list-style:none}.sources a{color:var(--brand);text-underline-offset:3px;margin-block:10px;text-decoration:underline;display:block}.sources p{color:var(--muted);font-size:13px}.related{border-top:1px solid var(--line);margin-top:56px;padding-top:36px}.related h2{margin-bottom:24px;font-size:28px}.related>div{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.related a{border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:8px;align-items:center;gap:12px;padding:18px 20px;font-size:14px;font-weight:500;transition:all .15s;display:flex}.related a:hover{border-color:var(--brand);color:var(--brand-hover);background:#f0f9ff}.related a svg:last-child{color:var(--muted);margin-left:auto}.not-found{text-align:center;padding-block:96px}.not-found h1{margin:16px 0;font-size:56px}.not-found p{color:var(--muted);margin-bottom:28px}.site-footer{color:#94a3b8;background:#0f172a;border-top:1px solid #1e293b;margin-top:64px;padding-top:56px}.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;display:grid}.footer-grid .brand{color:#fff}.footer-grid .brand-light{color:#94a3b8}.footer-grid h2{font-family:var(--sans);letter-spacing:.08em;text-transform:uppercase;color:#f1f5f9;margin:4px 0 20px;font-size:12px;font-weight:700}.footer-grid>div>a:not(.brand){color:#94a3b8;margin-bottom:12px;font-size:14px;transition:color .15s;display:block}.footer-grid>div>a:not(.brand):hover{color:#fff}.footer-grid p{color:#64748b;margin-block:16px;font-size:13px;line-height:1.6}.footer-grid>div:first-child p{color:#e2e8f0;font-size:17px;line-height:1.5}.footer-bottom{color:#64748b;border-top:1px solid #1e293b;justify-content:space-between;gap:16px;margin-top:40px;padding-block:24px;font-size:13px;display:flex}.footer-bottom a{color:#94a3b8}.footer-bottom a:hover{color:#fff}@media(max-width:1000px){.header-cta{display:none}.footer-grid{grid-template-columns:1fr 1fr;gap:32px}.next-steps{flex-direction:column;align-items:flex-start}}@media(max-width:768px){.container{padding-inline:20px}.header-inner{height:auto;min-height:68px;padding-block:14px}.page-shell{padding:24px 20px 48px}.page-heading h1{font-size:32px}.calculator{border-radius:8px;padding:20px 16px}.shape-picker{grid-template-columns:1fr 1fr;gap:8px}.fields{grid-template-columns:1fr;gap:16px}.result{padding:18px 16px}.result-number{font-size:34px}.next-steps{padding:20px 18px}.related>div{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr;gap:28px}}@property --tw-space-y-reverse{syntax:"*";inherits:false;initial-value:0}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}:root{--sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--surface-raised: #ffffff;--line-strong: #cbd5e1;font-size:16px}h1,h2{letter-spacing:-.025em}.eyebrow{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--brand)}.button{font-size:15px;min-height:48px}.text-link{font-size:15px;min-height:44px;align-items:center}.container{min-width:0}.header-inner{height:76px;gap:24px}.header-inner nav{gap:24px;font-size:14px}.header-inner nav a{display:flex;align-items:center;min-height:40px}.header-inner nav[hidden]{display:none}.menu-toggle{display:none;background:#fff;border:1px solid var(--line-strong);border-radius:6px;padding:8px 12px;min-height:42px;font-size:14px;font-weight:500;color:var(--ink)}.shop-hero{display:grid;grid-template-columns:1.15fr 1fr;align-items:center;gap:56px;padding:56px 0 64px}.shop-hero h1{font-size:clamp(38px,4vw,56px);line-height:1.12;margin:18px 0 20px;color:var(--ink);font-weight:800;letter-spacing:-.035em}.shop-hero .hero-copy>p{font-size:17px;line-height:1.65;color:var(--muted);max-width:520px}.shop-hero .hero-actions{display:flex;align-items:center;flex-wrap:wrap;margin-top:28px;gap:16px}.shop-proof{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;margin-top:24px;font-size:13px;color:var(--muted)}.shop-proof span{display:inline-flex;align-items:center;gap:6px}.shop-proof span:before{content:"✓";color:var(--brand);font-weight:700;font-size:12px}.shop-proof a{color:var(--brand);font-weight:500;text-decoration:underline;text-underline-offset:3px}.decision-board{background:#fff;border:1px solid #e2e8f0;padding:28px;position:relative;box-shadow:0 10px 30px -5px #0f172a14,0 0 0 1px #0f172a05;border-radius:12px}.board-top{display:flex;justify-content:space-between;align-items:center;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line)}.edition{font-size:11px;font-weight:600;color:#64748b;background:#f1f5f9;padding:3px 8px;border-radius:4px}.board-title{font-size:26px;font-weight:700;line-height:1.25;margin:18px 0 20px;color:var(--ink);letter-spacing:-.02em}.board-list>a{display:flex;align-items:center;gap:16px;border-top:1px solid var(--line);padding:16px 12px;border-radius:8px;min-height:76px;transition:all .15s ease}.board-list>a:hover{background:#f0f9ff;transform:translate(3px)}.board-number{font-family:var(--sans);font-size:16px;font-weight:700;color:var(--brand);background:#e0f2fe;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:6px;flex-shrink:0}.board-list>a>div{flex:1}.board-list span:not(.board-number){display:block;font-size:12px;font-weight:500;color:var(--muted);margin-bottom:3px}.board-list strong{font-weight:600;font-size:15px;color:var(--ink)}.board-foot{border-top:1px solid var(--line);padding-top:18px;margin-top:8px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px 16px;font-size:13px}.board-foot>span{color:var(--muted)}.board-foot a{color:var(--brand);font-weight:600}.guide-entry-section,.home-shortlist{border-top:1px solid var(--line);padding:56px 0 64px}.guide-entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:24px}.guide-entry{padding:28px;background:#fff;border:1px solid var(--line);border-radius:10px;display:flex;flex-direction:column;transition:all .2s ease;box-shadow:0 1px 3px #00000008}.guide-entry:hover{border-color:var(--brand-border);box-shadow:0 10px 25px -5px #0284c714;transform:translateY(-2px)}.guide-entry-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;color:var(--brand)}.guide-entry-top>span{font-size:13px;font-weight:700;background:#e0f2fe;color:var(--brand);padding:4px 10px;border-radius:6px}.guide-entry h3{font-size:22px;font-weight:700;letter-spacing:-.02em;line-height:1.25;margin:10px 0 12px;color:var(--ink)}.guide-entry p{font-size:14px;line-height:1.6;color:var(--muted);margin-bottom:24px}.entry-link{display:inline-flex;align-items:center;justify-content:space-between;font-size:14px;font-weight:600;color:var(--brand);margin-top:auto;min-height:40px;border-top:1px solid var(--line);padding-top:14px}.entry-link:hover{color:var(--brand-hover)}.section-intro{color:var(--muted);font-size:16px;max-width:760px;margin:0 0 28px}.home-product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.section-note{font-size:14px;color:var(--muted);margin-top:24px}.section-note a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}.product-card{border:1px solid var(--line);background:var(--surface-raised);border-radius:12px;min-width:0;scroll-margin-top:24px;box-shadow:0 2px 8px #0f172a0a;overflow:hidden;transition:border-color .2s ease}.product-card:hover{border-color:var(--line-strong)}.product-card-body{padding:32px}.product-tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:#e0f2fe;color:#0369a1;padding:4px 10px;border-radius:4px}.product-card h3{font-size:26px;font-weight:700;line-height:1.25;margin:14px 0 10px;letter-spacing:-.02em;color:var(--ink)}.product-verdict{font-size:15px;line-height:1.65;color:var(--muted)}.product-image{width:100%;height:auto;max-height:320px;object-fit:contain;padding:24px;background:#f8fafc;border-bottom:1px solid var(--line)}.spec-list{margin:24px 0;background:#f8fafc;border-radius:8px;padding:8px 16px;border:1px solid var(--line)}.spec-list>div{display:grid;grid-template-columns:minmax(130px,.75fr) 1.25fr;gap:16px;border-top:1px solid var(--line);padding:10px 0;font-size:14px;line-height:1.5}.spec-list>div:first-child{border-top:0}.spec-list dt{color:var(--muted);font-weight:500}.spec-list dd{margin:0;font-weight:600;color:var(--ink)}.fit-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:20px 0;border-top:1px solid var(--line)}.fit-grid>div{background:#f8fafc;padding:16px;border-radius:8px;border:1px solid var(--line)}.fit-grid>div:first-child{border-left:3px solid #10b981}.fit-grid>div:last-child{border-left:3px solid #f59e0b}.fit-grid h4{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.03em;margin-bottom:8px;color:var(--ink)}.fit-grid p,.maintenance{font-size:14px;color:var(--muted);line-height:1.6}.maintenance{margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}.maintenance strong{color:var(--ink)}.product-caveat{font-size:13px;line-height:1.6;background:#fffbeb;color:#92400e;padding:14px 16px;margin-top:18px;border-radius:6px;border-left:3px solid #f59e0b}.evidence-link{font-size:12px;color:var(--muted);margin-top:18px}.evidence-link a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}.product-action{display:flex;align-items:center;flex-wrap:wrap;gap:12px 20px;margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}.product-action small{font-size:12px;color:var(--muted)}.product-card-compact{display:flex}.product-card-compact .product-card-body{padding:24px;display:flex;flex-direction:column;width:100%}.product-card-compact h3{font-size:20px}.product-card-compact .product-verdict{font-size:14px}.product-card-compact .spec-list{margin:18px 0 0}.product-card-compact .spec-list>div{display:flex;justify-content:space-between;font-size:13px}.product-card-compact .product-action{margin-top:auto;padding-top:16px;border-top:0}.care-edit{display:grid;grid-template-columns:.95fr 1.05fr;gap:56px;padding:64px 0;border-top:1px solid var(--line);align-items:center}.care-edit-image{position:relative;background:#f8fafc;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:0 4px 20px -2px #0f172a0d}.care-edit-image img{width:100%;height:480px;object-fit:cover}.care-edit-image>span{display:block;font-size:12px;color:var(--muted);padding:12px 18px;background:#fff;border-top:1px solid var(--line)}.care-edit-copy h2{font-size:clamp(30px,3.2vw,42px);margin:14px 0 18px;color:var(--ink)}.care-edit-copy>p{color:var(--muted);font-size:16px;line-height:1.7}.care-story{display:block;padding:22px 24px;background:#fff;border:1px solid var(--line);border-radius:10px;position:relative;margin-top:20px;transition:all .2s ease}.care-story:hover{border-color:var(--brand-border);box-shadow:0 4px 16px #0284c714;transform:translate(3px)}.care-story>span{font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--brand)}.care-story h3{font-size:20px;font-weight:700;margin:8px 0;color:var(--ink)}.care-story p{font-size:14px;color:var(--muted)}.care-story svg{position:absolute;right:20px;top:50%;transform:translateY(-50%);color:var(--brand)}.compact-calculators{background:linear-gradient(135deg,#0f172a,#032b44);color:#fff;padding:44px 48px;display:grid;grid-template-columns:1fr 1.25fr;gap:56px;border-radius:12px;box-shadow:0 8px 30px -4px #0f172a26}.compact-calculators h2{font-size:36px;font-weight:800;margin:14px 0;color:#fff}.compact-calculators p{color:#94a3b8;font-size:15px;line-height:1.7;margin-bottom:24px}.compact-calculators .text-link{color:#38bdf8}.compact-tool-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}.compact-tool-list a{display:flex;align-items:center;gap:12px;background:#ffffff0f;border:1px solid rgba(255,255,255,.1);padding:14px 18px;border-radius:8px;font-size:14px;font-weight:500;color:#fff;transition:all .15s ease}.compact-tool-list a:hover{background:#ffffff24;border-color:#ffffff40;transform:translateY(-1px)}.compact-tool-list a svg:last-child{margin-left:auto;color:#38bdf8}.compact-tool-list a:first-child{grid-column:1 / -1;background:#0284c733;border-color:#38bdf866}.editorial-bottom{display:grid;grid-template-columns:1fr 1fr;gap:64px;padding:64px 0}.editorial-bottom h2{font-size:34px;margin:14px 0 16px}.editorial-bottom p{color:var(--muted);font-size:15px;line-height:1.7;max-width:460px;margin-bottom:24px}.latest-guides>a{display:block;padding:18px 24px;border-bottom:1px solid var(--line);position:relative;transition:background .15s ease}.latest-guides>a:hover{background:#f8fafc}.latest-guides>a>span{font-size:12px;font-weight:600;color:var(--muted)}.latest-guides h3{font-size:18px;font-weight:700;margin-top:6px;color:var(--ink)}.latest-guides svg{position:absolute;right:16px;top:50%;transform:translateY(-50%);color:var(--brand)}.guide-shell{padding-top:32px;padding-bottom:64px}.guide-heading{max-width:860px;margin-bottom:32px}.guide-heading h1{font-size:clamp(34px,4vw,50px)}.methodology-box{padding:24px 28px;background:#f8fafc;border-left:4px solid var(--brand);border-radius:0 8px 8px 0;margin:24px 0 36px;font-size:14px}.methodology-box p{max-width:930px;margin:8px 0;color:#334155}.methodology-box>div{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:13px;margin-top:14px}.methodology-box a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}.quick-pick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:24px}.quick-pick-grid>a{padding:24px;background:#fff;border:1px solid var(--line);border-radius:10px;display:flex;gap:16px;min-width:0;transition:all .15s ease}.quick-pick-grid>a:hover{border-color:var(--brand);box-shadow:0 6px 20px -2px #0284c714}.pick-number{font-size:14px;font-weight:700;color:var(--brand);background:#e0f2fe;width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:6px;flex-shrink:0}.quick-pick-grid h3{font-size:18px;font-weight:700;margin:8px 0;color:var(--ink)}.quick-pick-grid p{font-size:13px;color:var(--muted);line-height:1.5}.pick-link{display:block;font-size:13px;font-weight:600;color:var(--brand);margin-top:14px}.guide-toc a{font-size:13px;font-weight:500;min-height:40px;display:flex;align-items:center;background:#fff;border:1px solid var(--line);padding:6px 14px;border-radius:6px}.guide-toc a:hover{border-color:var(--brand);background:#f0f9ff;color:var(--brand)}.guide-section{margin:48px 0}.guide-section h2{font-size:30px;margin-bottom:20px}.comparison-table table{min-width:800px;font-size:14px}.comparison-table th,.comparison-table td{vertical-align:top;min-width:140px;padding:14px 18px}.comparison-table th a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}.comparison-table caption{font-size:13px;line-height:1.6}.product-reviews{display:grid;gap:32px;max-width:920px;margin:40px auto}.guide-body{margin-top:48px}.chemical-section{margin:48px auto;max-width:920px;scroll-margin-top:24px}.chemical-section>.product-card{margin:24px 0}.directory-guides>a{display:block;border:1px solid var(--line);padding:28px;margin:20px 0;background:#fff;border-radius:10px;transition:all .15s ease}.directory-guides>a:hover{border-color:var(--brand);box-shadow:0 6px 20px -2px #0284c714}.directory-guides h2{margin:10px 0;font-size:26px}.directory-guides p{margin:8px 0 14px;color:var(--muted)}.calculator-directory>a{display:flex;gap:20px;align-items:center;border-bottom:1px solid var(--line);padding:22px 0;transition:all .15s ease}.calculator-directory>a:hover{padding-left:8px}.calculator-directory>a>div{flex:1}.calculator-directory h2{margin:0;font-size:22px;font-weight:700}.calculator-directory p{font-size:14px;margin:6px 0 0;color:var(--muted)}.next-step-links{display:flex;flex-direction:column;gap:8px;flex-shrink:0;max-width:100%}.next-step-links>a{font-size:13px;color:#38bdf8;text-decoration:underline;text-underline-offset:3px;min-height:36px;display:flex;align-items:center}.next-step-links>a:hover{color:#7dd3fc}@media(max-width:1050px){.shop-hero,.care-edit{gap:36px}.compact-calculators{gap:32px;padding:36px}.home-product-grid{gap:16px}}@media(max-width:768px){:root{font-size:16px}.container{padding-inline:20px}.menu-toggle:not([hidden]){display:flex;align-items:center;gap:8px;margin-left:auto}.header-inner nav{width:100%;flex-direction:column;gap:0;font-size:15px;padding:8px 0}.header-inner nav a{padding:12px 0;border-top:1px solid var(--line);min-height:44px}.header-inner:has(.menu-toggle:not([hidden])) nav[hidden]{display:none}html.js #main-navigation:not([data-open=true]){display:none}.shop-hero{grid-template-columns:1fr;padding:32px 0 36px;gap:32px}.shop-hero h1{font-size:34px;margin:12px 0 16px}.shop-hero .hero-copy>p{font-size:15px}.shop-hero .hero-actions{margin-top:20px;gap:12px}.shop-proof{margin-top:16px;font-size:12px;gap:8px 14px}.decision-board{padding:20px}.board-title{font-size:22px;margin:14px 0 16px}.guide-entry-section,.home-shortlist{padding:36px 0}.guide-entry-grid,.home-product-grid{grid-template-columns:1fr;gap:16px}.care-edit{grid-template-columns:1fr;padding:36px 0;gap:28px}.care-edit-image{order:2}.care-edit-image img{height:260px}.care-edit-copy h2{font-size:28px}.compact-calculators{grid-template-columns:1fr;padding:28px 24px;gap:24px}.compact-calculators h2{font-size:28px}.compact-tool-list{grid-template-columns:1fr;gap:10px}.editorial-bottom{grid-template-columns:1fr;padding:36px 0;gap:32px}.editorial-bottom h2{font-size:28px}.quick-pick-grid{grid-template-columns:1fr;gap:14px}.product-card-body{padding:20px}.spec-list>div{grid-template-columns:1fr 1fr}.fit-grid{grid-template-columns:1fr;gap:14px}}@media(prefers-reduced-motion:reduce){.hero-copy{animation:none}}