@font-face{font-family:Plus Jakarta Sans Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(data:font/woff2;base64,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)format("woff2-variations");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Plus Jakarta Sans Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/plus-jakarta-sans-vietnamese-wght-normal.qRpaaN48.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Plus Jakarta Sans Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/plus-jakarta-sans-latin-ext-wght-normal.DmpS2jIq.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Plus Jakarta Sans Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/plus-jakarta-sans-latin-wght-normal.eXO_dkmS.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-mono-latin-400-normal.DMJ8VG8y.woff2)format("woff2"),url(/_astro/ibm-plex-mono-latin-400-normal.CvHOgSBP.woff)format("woff")}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:500;src:url(/_astro/ibm-plex-mono-latin-500-normal.DSY6xOcd.woff2)format("woff2"),url(/_astro/ibm-plex-mono-latin-500-normal.CB9ihrfo.woff)format("woff")}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:600;src:url(/_astro/ibm-plex-mono-latin-600-normal.BgSNZQsw.woff2)format("woff2"),url(/_astro/ibm-plex-mono-latin-600-normal.DWFSQ4vo.woff)format("woff")}@font-face{font-family:Jakarta Fallback;src:local(Arial),local(ArialMT),local(Helvetica);size-adjust:104.98%;ascent-override:98.88%;descent-override:21.15%;line-gap-override:0%}@font-face{font-family:Jakarta Fallback Roboto;src:local(Roboto),local(Roboto-Regular);size-adjust:105.21%;ascent-override:98.66%;descent-override:21.1%;line-gap-override:0%}:root{--bg:#fff;--bg-soft:#f6f8fc;--surface:#fff;--surface-2:#f3f6fb;--ink:#0e1525;--ink-2:#344054;--muted:#667085;--line:#e4e8f0;--line-2:#eef1f6;--brand:#2e5bff;--brand-600:#1f45e0;--brand-50:#f0f4ff;--brand-100:#dfe7ff;--ok:#067647;--ok-50:#ecfdf3;--warn:#b54708;--warn-50:#fffaeb;--err:#d92d20;--err-50:#fef3f2;--focus:#2e5bff40;--shadow-sm:0 1px 2px #1018280d;--shadow:0 1px 3px #1018280f, 0 12px 32px -12px #1018281f;--shadow-lg:0 1px 3px #1018280d, 0 24px 60px -20px #10182838;--font:"Plus Jakarta Sans Variable", "Plus Jakarta Sans", "Jakarta Fallback", "Jakarta Fallback Roboto", system-ui, sans-serif;--mono:"IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;--w:1120px;--w-text:740px;--r-sm:8px;--r:12px;--r-lg:18px;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-mode=light]):not([data-theme=light]){--bg:#0b0f1a;--bg-soft:#0f1422;--surface:#141a2b;--surface-2:#1a2236;--ink:#f2f4f8;--ink-2:#cdd4e0;--muted:#98a2b3;--line:#253049;--line-2:#1d263b;--brand:#7b98ff;--brand-600:#a3b7ff;--brand-50:#161f3d;--brand-100:#1f2b55;--ok:#47cd89;--ok-50:#0c2a1e;--warn:#fdb022;--warn-50:#2b2110;--err:#f97066;--err-50:#2f1512;--focus:#7b98ff59;--shadow:0 1px 3px #0000004d, 0 12px 32px -12px #00000080;--shadow-lg:0 24px 60px -20px #000000b3;color-scheme:dark}}:root[data-theme=dark]:not([data-mode=light]),:root[data-mode=dark]{--bg:#0b0f1a;--bg-soft:#0f1422;--surface:#141a2b;--surface-2:#1a2236;--ink:#f2f4f8;--ink-2:#cdd4e0;--muted:#98a2b3;--line:#253049;--line-2:#1d263b;--brand:#7b98ff;--brand-600:#a3b7ff;--brand-50:#161f3d;--brand-100:#1f2b55;--ok:#47cd89;--ok-50:#0c2a1e;--warn:#fdb022;--warn-50:#2b2110;--err:#f97066;--err-50:#2f1512;--focus:#7b98ff59;--shadow:0 1px 3px #0000004d, 0 12px 32px -12px #00000080;--shadow-lg:0 24px 60px -20px #000000b3;color-scheme:dark}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-padding-top:84px}body{font-family:var(--font);word-spacing:.05em;color:var(--ink-2);background:var(--bg);-webkit-font-smoothing:antialiased;margin:0;font-size:17px;line-height:1.7}img,svg{max-width:100%;display:block}a{color:var(--brand);text-decoration:underline;text-decoration-color:color-mix(in srgb, var(--brand) 30%, transparent);text-underline-offset:3px}a:hover{color:var(--brand-600);text-decoration-color:currentColor}h1,h2,h3{color:var(--ink);letter-spacing:-.025em;text-wrap:balance;margin:0 0 .5em;font-weight:800;line-height:1.15}h1{letter-spacing:-.035em;font-size:clamp(2rem,1.4rem + 2.6vw,3.25rem);line-height:1.08}h2{margin-top:2.2em;font-size:clamp(1.45rem,1.25rem + .8vw,1.85rem)}h3{margin-top:1.6em;font-size:1.12rem;font-weight:700}p,ul,ol{margin:0 0 1.1em}ul,ol{padding-left:1.3em}li+li{margin-top:.35em}strong{color:var(--ink);font-weight:700}code{font-family:var(--mono)}:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px}.skip-link{z-index:100;color:#fff;background:var(--brand);border-radius:var(--r-sm);padding:8px 14px;position:absolute;top:-60px;left:16px}.skip-link:focus{top:12px}.container{width:100%;max-width:var(--w);margin-inline:auto;padding-inline:20px}@media (width>=760px){.container{padding-inline:32px}}.btn{min-height:40px;font:inherit;border-radius:var(--r-sm);cursor:pointer;border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:8px 16px;font-size:.9rem;font-weight:600;text-decoration:none;transition:background .15s,border-color .15s,color .15s;display:inline-flex}.btn svg{width:16px;height:16px}.btn--primary{color:#fff;background:var(--brand)}.btn--primary:hover{color:#fff;background:var(--brand-600)}.btn--ghost{color:var(--ink-2);background:var(--surface);border-color:var(--line)}.btn--ghost:hover{color:var(--ink);border-color:var(--muted)}.site-header{top:env(safe-area-inset-top,0px);z-index:50;background:var(--bg);border-bottom:1px solid var(--line);position:sticky}.site-header__inner{align-items:center;gap:24px;height:68px;display:flex}.brand{color:var(--ink);align-items:center;gap:10px;text-decoration:none;display:inline-flex}.brand:hover{color:var(--ink)}.brand__name{letter-spacing:-.02em;white-space:nowrap;font-size:1.08rem;font-weight:800}.logo{flex:none;filter:none!important}.nav{align-items:center;gap:4px;margin-left:auto;display:flex}.nav__item{position:relative}.nav__link,.nav__trigger{font:inherit;color:var(--ink-2);border-radius:var(--r-sm);cursor:pointer;background:0 0;border:0;align-items:center;gap:6px;padding:8px 12px;font-size:.94rem;font-weight:600;text-decoration:none;display:inline-flex}.nav__link:hover,.nav__trigger:hover,.nav__item:focus-within .nav__trigger{color:var(--ink);background:var(--surface-2)}.nav__trigger svg{width:14px;height:14px;transition:transform .2s}.nav__menu{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);width:560px;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;grid-template-columns:1fr 1fr;gap:2px;padding:10px;transition:opacity .15s,transform .15s,visibility .15s;display:grid;position:absolute;top:calc(100% + 10px);right:0;transform:translateY(-4px)}.nav__menu--narrow{grid-template-columns:1fr;width:320px}.nav__item:hover .nav__menu,.nav__item:focus-within .nav__menu{opacity:1;visibility:visible;transform:none}.nav__item:hover .nav__trigger svg{transform:rotate(180deg)}.menu-link{color:var(--ink);border-radius:var(--r);align-items:center;gap:12px;padding:9px 10px;text-decoration:none;display:flex}.menu-link:hover{color:var(--ink);background:var(--surface-2)}.menu-link__icon{width:36px;height:36px;color:var(--brand);background:var(--brand-50);border-radius:10px;flex:none;place-items:center;font-size:.95rem;font-weight:800;display:grid}.menu-link__label{font-size:.93rem;font-weight:700;line-height:1.3;display:block}.menu-link__desc{color:var(--muted);font-size:.82rem;line-height:1.4;display:block}.header-actions{gap:6px;display:flex}.icon-btn{width:40px;height:40px;color:var(--ink-2);background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);cursor:pointer;place-items:center;display:inline-grid}.icon-btn:hover{color:var(--ink);border-color:var(--muted)}.icon-btn svg{width:18px;height:18px}.theme-toggle .i-sun{display:none}:root[data-mode=dark] .theme-toggle .i-sun,:root[data-theme=dark]:not([data-mode=light]) .theme-toggle .i-sun{display:block}:root[data-mode=dark] .theme-toggle .i-moon,:root[data-theme=dark]:not([data-mode=light]) .theme-toggle .i-moon{display:none}@media (prefers-color-scheme:dark){:root:not([data-mode=light]):not([data-theme=light]) .theme-toggle .i-sun{display:block}:root:not([data-mode=light]):not([data-theme=light]) .theme-toggle .i-moon{display:none}}.menu-toggle{display:none}@media (width<=899px){.menu-toggle{display:inline-grid}.header-actions{margin-left:auto}.nav{inset:calc(68px + env(safe-area-inset-top,0px)) 0 0 0;background:var(--bg);flex-direction:column;align-items:stretch;gap:0;margin:0;padding:8px 20px 32px;display:none;position:fixed;overflow-y:auto}.nav.is-open{display:flex}body.menu-open{overflow:hidden}.nav__trigger{letter-spacing:.08em;text-transform:uppercase;color:var(--muted);pointer-events:none;padding:18px 0 6px;font-size:.75rem;font-weight:700}.nav__trigger svg{display:none}.nav__link{border-top:1px solid var(--line);border-radius:0;padding:14px 0}.nav__menu,.nav__menu--narrow{width:auto;box-shadow:none;opacity:1;visibility:visible;background:0 0;border:0;grid-template-columns:1fr;padding:0;position:static;transform:none}.menu-link{padding:8px 0}}.hero{background:linear-gradient(180deg, var(--brand-50) 0%, var(--bg) 85%);border-bottom:1px solid var(--line-2);padding-block:56px 64px}.hero--page{padding-block:32px 56px}.hero__inner{text-align:center;max-width:820px}.hero__tool{text-align:left;margin-top:32px}.eyebrow{color:var(--brand);background:var(--surface);border:1px solid var(--brand-100);border-radius:999px;margin-bottom:18px;padding:5px 14px;font-size:.82rem;font-weight:600;display:inline-block}.hl{color:var(--brand)}.lead{max-width:620px;color:var(--muted);margin:0 auto;font-size:1.13rem;line-height:1.6}.trust{color:var(--muted);flex-wrap:wrap;justify-content:center;gap:8px 24px;margin:24px 0 0;padding:0;font-size:.9rem;list-style:none;display:flex}.trust li{align-items:center;gap:7px;margin:0;display:inline-flex}.trust svg{width:16px;height:16px;color:var(--ok)}.breadcrumbs{color:var(--muted);margin-bottom:18px;font-size:.85rem}.breadcrumbs ol{flex-wrap:wrap;justify-content:center;gap:4px;margin:0;padding:0;list-style:none;display:flex}.breadcrumbs li{margin:0}.breadcrumbs li+li:before{content:"/";color:var(--line);margin:0 6px 0 2px}.breadcrumbs a{color:var(--muted);text-decoration:none}.breadcrumbs a:hover{color:var(--brand)}.calc{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);padding:22px}@media (width>=760px){.calc{padding:28px}}.calc+.calc{margin-top:20px}.calc__head{margin-bottom:18px}.calc__title{margin:0;font-size:1.1rem}.calc__mode{letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-size:.78rem;font-weight:700;display:block}.calc__sentence{color:var(--muted);margin:2px 0 0;font-size:.95rem}.calc__fields{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;display:grid}.calc__field{gap:6px;display:grid}.calc__label{color:var(--ink);font-size:.88rem;font-weight:600}.calc__input{align-items:center;display:flex;position:relative}.calc__input input{width:100%;height:56px;font-family:var(--font);font-variant-numeric:tabular-nums;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow-sm);padding:0 46px 0 16px;font-size:1.3rem;font-weight:700;transition:border-color .15s,box-shadow .15s}.calc__input input:hover{border-color:color-mix(in srgb, var(--muted) 50%, var(--line))}.calc__input input:focus{border-color:var(--brand);box-shadow:0 0 0 4px var(--focus);outline:none}.calc__unit{color:var(--muted);pointer-events:none;font-weight:700;position:absolute;right:16px}.calc__result{background:var(--brand-50);border:1px solid var(--brand-100);border-radius:var(--r);grid-template-columns:auto minmax(0,1fr);align-items:center;gap:2px 14px;margin-top:18px;padding:18px 20px;display:grid}.calc__eq{color:#fff;background:var(--brand);border-radius:50%;grid-row:span 2;place-items:center;width:40px;height:40px;font-size:1.3rem;font-weight:800;line-height:1;display:grid}.calc__value{letter-spacing:-.03em;color:var(--brand);font-variant-numeric:tabular-nums;overflow-wrap:anywhere;font-size:clamp(1.9rem,1.5rem + 1.6vw,2.5rem);font-weight:800;line-height:1.1}.calc__headline{color:var(--ink-2);font-variant-numeric:tabular-nums;font-size:.95rem}.calc__result.is-error{background:var(--err-50);border-color:color-mix(in srgb, var(--err) 30%, transparent)}.calc__result.is-error .calc__eq{background:var(--err)}.calc__result.is-error .calc__headline{color:var(--err);font-weight:600}.calc__steps{background:var(--bg-soft);border:1px solid var(--line-2);border-radius:var(--r);margin-top:14px}.calc__steps summary{color:var(--ink);cursor:pointer;align-items:center;gap:10px;padding:12px 16px;font-size:.93rem;font-weight:700;list-style:none;display:flex}.calc__steps summary::-webkit-details-marker{display:none}.calc__steps summary:before{content:"";border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);width:7px;height:7px;margin:0 3px 0 2px;transition:transform .2s;transform:rotate(-45deg)}.calc__steps[open] summary:before{transform:rotate(45deg)}.calc__steps ol{counter-reset:step;margin:0;padding:0 16px 14px;list-style:none}.calc__steps li{font-family:var(--mono);word-spacing:0;color:var(--ink-2);font-variant-numeric:tabular-nums;counter-increment:step;grid-template-columns:28px minmax(0,1fr);gap:8px;margin:0;padding:5px 0;font-size:.9rem;line-height:1.55;display:grid}.calc__steps li:before{content:counter(step);width:22px;height:22px;font-family:var(--font);color:var(--muted);background:var(--surface);border:1px solid var(--line);border-radius:50%;place-items:center;margin-top:1px;font-size:.72rem;font-weight:700;display:grid}.calc__steps li:last-child{color:var(--ink);font-weight:600}.calc__steps li:last-child:before{color:#fff;background:var(--ok);border-color:var(--ok)}.calc__actions{flex-wrap:wrap;gap:8px;margin-top:16px;display:flex}.calc__actions .btn{min-height:36px;padding:6px 12px;font-size:.85rem}@media (width<=480px){.calc__steps li{grid-template-columns:26px minmax(0,1fr);font-size:.83rem}}.tabs{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);overflow:hidden}.tabs__list{background:var(--bg-soft);border-bottom:1px solid var(--line);scrollbar-width:none;gap:4px;padding:8px;display:flex;overflow-x:auto}.tabs__list::-webkit-scrollbar{display:none}.tabs__tab{font:inherit;white-space:nowrap;color:var(--muted);border-radius:var(--r-sm);cursor:pointer;background:0 0;border:0;flex:1 0 auto;padding:9px 14px;font-size:.9rem;font-weight:600}.tabs__tab:hover{color:var(--ink)}.tabs__tab[aria-selected=true]{color:var(--ink);background:var(--surface);box-shadow:var(--shadow-sm), 0 0 0 1px var(--line)}.tabs .calc{box-shadow:none;border:0;border-radius:0}.js .tabs__panel[hidden]{display:none}.page{padding-block:64px 88px}.prose{max-width:var(--w-text);margin-inline:auto}.prose>:first-child{margin-top:0}.table-wrap{border:1px solid var(--line);border-radius:var(--r);margin:0 0 1.6em;overflow-x:auto}.prose table{border-collapse:collapse;font-variant-numeric:tabular-nums;width:100%;font-size:.95rem}.prose th,.prose td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line-2);padding:11px 16px}.prose th{color:var(--ink);background:var(--bg-soft);border-bottom-color:var(--line);font-size:.82rem;font-weight:700}.prose tr:last-child td{border-bottom:0}.prose code{color:var(--ink);background:var(--surface-2);border-radius:6px;padding:2px 6px;font-size:.86em}.formula{background:var(--bg-soft);border:1px solid var(--line-2);border-left:3px solid var(--brand);border-radius:var(--r-sm);gap:4px;margin:0 0 12px;padding:16px 20px;display:grid}.formula+:not(.formula){margin-top:1.3em}.formula__label{letter-spacing:.04em;text-transform:uppercase;color:var(--brand);font-size:.78rem;font-weight:700}.formula__expr{font-family:var(--mono);color:var(--ink);font-variant-numeric:tabular-nums;overflow-wrap:anywhere;font-size:1.12rem;font-weight:500}.formula__note{color:var(--muted);margin:0;font-size:.9rem}.callout{background:var(--brand-50);border-radius:var(--r);gap:2px;margin:0 0 1.6em;padding:16px 20px;display:grid}.callout__label{letter-spacing:.06em;text-transform:uppercase;color:var(--brand);font-size:.78rem;font-weight:800}.callout--merke{background:var(--ok-50)}.callout--merke .callout__label{color:var(--ok)}.callout--warn{background:var(--warn-50)}.callout--warn .callout__label{color:var(--warn)}.callout p:last-child{margin:0}.examples{grid-template-columns:1fr;gap:12px;margin:0 0 1.6em;display:grid}@media (width>=640px){.examples{grid-template-columns:1fr 1fr}}.example{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px}.example__tag{letter-spacing:.05em;text-transform:uppercase;color:var(--muted);font-size:.75rem;font-weight:700}.example h3{margin:4px 0;font-size:1.02rem}.example p{color:var(--muted);font-variant-numeric:tabular-nums;margin:0;font-size:.94rem}.example p strong{color:var(--brand)}.howto{counter-reset:howto;margin:0 0 1.6em;padding:0;list-style:none}.howto li{counter-increment:howto;margin:0;padding:0 0 18px 50px;position:relative}.howto li:before{content:counter(howto);width:32px;height:32px;color:var(--brand);background:var(--brand-50);border-radius:50%;place-items:center;font-weight:800;display:grid;position:absolute;top:0;left:0}.howto li:not(:last-child):after{content:"";background:var(--line-2);width:2px;position:absolute;top:38px;bottom:4px;left:15px}.faq{border-top:1px solid var(--line);margin:0 0 1.6em}.faq details{border-bottom:1px solid var(--line)}.faq summary{color:var(--ink);cursor:pointer;padding:18px 44px 18px 0;font-weight:700;list-style:none;position:relative}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";color:var(--muted);font-size:1.4rem;font-weight:400;line-height:1;position:absolute;top:50%;right:4px;transform:translateY(-50%)}.faq details[open] summary:after{content:"−"}.faq summary:hover{color:var(--brand)}.faq__answer{padding:0 0 18px}.faq__answer p:last-child{margin:0}.sources{margin:0 0 1.6em;padding:0;list-style:none}.sources li{border-bottom:1px solid var(--line-2);margin:0;padding:10px 0}.sources a{font-weight:600}.sources span{color:var(--muted);font-size:.88rem;display:block}.tools{grid-template-columns:1fr;gap:12px;margin:0 0 1.6em;padding:0;list-style:none;display:grid}@media (width>=640px){.tools{grid-template-columns:1fr 1fr}}@media (width>=960px){.section .tools{grid-template-columns:repeat(3,1fr)}}.tools li{margin:0}.tool-card{height:100%;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:var(--r);align-items:center;gap:14px;padding:16px 18px;text-decoration:none;transition:border-color .15s,box-shadow .15s;display:flex}.tool-card:hover{color:var(--ink);border-color:var(--brand-100);box-shadow:var(--shadow)}.tool-card:hover .menu-link__label{color:var(--brand)}.author{border-top:1px solid var(--line);align-items:flex-start;gap:16px;margin-top:3em;padding-top:24px;display:flex}.author__avatar{color:#fff;background:var(--brand);border-radius:50%;flex:none;place-items:center;width:48px;height:48px;font-weight:800;display:grid}.author__name{margin:0;font-weight:700}.author__name a{color:var(--ink);text-decoration:none}.author__meta{color:var(--muted);margin:0 0 6px;font-size:.85rem}.author__bio{margin:0;font-size:.94rem}.section{padding-block:72px}.section--alt{background:var(--bg-soft);border-block:1px solid var(--line-2)}.section__head{text-align:center;max-width:640px;margin:0 auto 36px}.section__head h2{margin:0 0 8px}.section__head p{color:var(--muted);margin:0}.features{grid-template-columns:1fr;gap:32px;display:grid}@media (width>=800px){.features{grid-template-columns:repeat(3,1fr)}}.feature h3{margin:0 0 8px}.feature h3:before{content:"";background:var(--brand);border-radius:2px;width:36px;height:4px;margin-bottom:16px;display:block}.feature p{color:var(--muted);margin:0}.legal{max-width:var(--w-text);margin-inline:auto}.legal h2{margin-top:1.8em;font-size:1.3rem}.legal address{font-style:normal}.site-footer{color:var(--muted);background:var(--bg-soft);border-top:1px solid var(--line);padding-block:56px 28px;font-size:.93rem}.footer__grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:32px;display:grid}@media (width>=960px){.footer__grid{grid-template-columns:1.6fr repeat(4,1fr)}}.footer__about p{max-width:300px;margin-top:14px}.footer__title{color:var(--ink);margin:0 0 12px;font-size:.85rem;font-weight:700}.site-footer ul{margin:0;padding:0;list-style:none}.site-footer li{margin:0 0 8px}.site-footer li a{color:var(--muted);text-decoration:none}.site-footer li a:hover{color:var(--brand)}.footer__bottom{border-top:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;gap:8px;margin-top:40px;padding-top:20px;font-size:.85rem;display:flex}.per{text-decoration:overline 1.5px}.figure{border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;margin:28px 0;padding:12px}.figure img{width:100%;height:auto;display:block}.figure figcaption{color:var(--muted);margin:10px 4px 2px;font-size:.88rem}.figure__credit{white-space:nowrap;font-size:.78rem}.hero__tool:empty{display:none}.featured{margin:0 0 32px}.featured img{aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-lg);width:100%;height:auto;box-shadow:var(--shadow);display:block}.featured figcaption{color:var(--muted);margin:10px 4px 0;font-size:.88rem}.blog-card{height:100%;color:inherit;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);flex-direction:column;text-decoration:none;transition:box-shadow .2s,transform .2s,border-color .2s;display:flex;overflow:hidden}.blog-card:hover{border-color:var(--brand-100);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.blog-card img{aspect-ratio:3/2;object-fit:cover;background:var(--surface-2);width:100%;height:auto;display:block}.blog-card__body{flex-direction:column;flex:1;gap:6px;padding:18px 20px 20px;display:flex}.blog-card__meta{color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;font-size:.8rem;display:flex}.blog-card__tag{color:var(--brand-600);background:var(--brand-50);border-radius:999px;padding:3px 10px;font-weight:600}.blog-card__title{color:var(--ink);font-size:1.12rem;font-weight:700;line-height:1.3}.blog-card__desc{color:var(--muted);font-size:.93rem}.blog-card__more{color:var(--brand);margin-top:auto;padding-top:8px;font-size:.9rem;font-weight:600}.blog-card--featured{margin-bottom:20px}.blog-card--featured .blog-card__title{font-size:1.45rem}@media (width>=720px){.blog-card--featured{grid-template-columns:1.25fr 1fr;display:grid}.blog-card--featured img{height:100%}.blog-card--featured .blog-card__body{justify-content:center;padding:28px}}.blog-grid{gap:20px;margin:0;padding:0;list-style:none;display:grid}.blog-grid>li{margin:0}@media (width>=720px){.blog-grid{grid-template-columns:1fr 1fr}}@media (prefers-reduced-motion:reduce){.blog-card{transition:none}.blog-card:hover{transform:none}}.triangle-figure{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);margin:0;padding:28px}.triangle-figure svg{max-width:340px;margin:0 auto}.triangle-figure figcaption{text-align:center;color:var(--muted);margin-top:12px;font-size:.88rem}.task{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);margin:0 0 12px;padding:18px 20px}.task__head{align-items:center;gap:10px;margin-bottom:6px;display:flex}.task__num{color:var(--ink);font-weight:800}.level{border-radius:999px;padding:2px 10px;font-size:.72rem;font-weight:700}.level--1{color:var(--ok);background:var(--ok-50)}.level--2{color:var(--warn);background:var(--warn-50)}.level--3{color:var(--err);background:var(--err-50)}.solution{margin-top:10px}.solution summary{color:var(--brand);cursor:pointer;font-size:.92rem;font-weight:700;display:inline-block}.solution>div{font-family:var(--mono);background:var(--bg-soft);border-radius:var(--r-sm);margin-top:10px;padding:12px 16px;font-size:.9rem}@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important}}@media print{.site-header,.site-footer,.calc__actions{display:none}}.sitemap-cols{columns:2 180px;column-gap:24px}.sitemap-cols li{break-inside:avoid}