@font-face{font-family:'Bricolage Grotesque';src:url('../fonts/bricolage.woff2') format('woff2');font-weight:500 800;font-style:normal;font-display:swap}
@font-face{font-family:'Geist';src:url('../fonts/geist.woff2') format('woff2');font-weight:400 600;font-style:normal;font-display:swap}
@font-face{font-family:'Geist Mono';src:url('../fonts/geistmono.woff2') format('woff2');font-weight:400 600;font-style:normal;font-display:swap}
:root{--bg:#F7F8FB;--surface:#FFFFFF;--ink:#151822;--accent:#2447C8;--muted:#5A6072;--line:#DDE1EC;--tint:#E8EDFB;--r-sm:10px;--r-md:16px;--wrap:1180px;--f-head:'Bricolage Grotesque',ui-sans-serif,system-ui,sans-serif;--f-body:'Geist',ui-sans-serif,system-ui,sans-serif;--f-mono:'Geist Mono',ui-monospace,SFMono-Regular,Menlo,monospace}
*,*::before,*::after{box-sizing:border-box}
:where(html){-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:110px}
:where(body){margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.65 var(--f-body);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
:where(h1,h2,h3,h4){font-family:var(--f-head);font-weight:700;line-height:1.1;margin:0;letter-spacing:-.015em}
:where(p){margin:0 0 1em}
:where(a){color:var(--accent);text-decoration-thickness:1px;text-underline-offset:3px}
:where(img,svg){max-width:100%;height:auto}
:where(ul,ol){margin:0;padding:0;list-style:none}
:where(button,input,select){font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-9999px;top:0}.skip:focus{left:1rem;top:1rem;z-index:100;background:var(--surface);padding:.6rem 1rem;border:1px solid var(--line);border-radius:var(--r-sm)}
.wrap{width:min(100% - 2.5rem,var(--wrap));margin-inline:auto}
.num{font-family:var(--f-mono);font-weight:500;font-variant-numeric:tabular-nums;letter-spacing:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:46px;padding:.65rem 1.15rem;border-radius:var(--r-sm);border:1px solid transparent;font:600 16px/1 var(--f-body);cursor:pointer;text-decoration:none}
.btn--primary{background:var(--accent);color:#fff}.btn--primary:hover{filter:brightness(.86);color:#fff}
.btn--ghost{border-color:var(--ink);color:var(--ink);background:transparent}.btn--ghost:hover{background:var(--ink);color:var(--bg)}




.site-header{position:sticky;top:0;z-index:40;background:var(--surface);border-bottom:1px solid var(--line)}
.site-header__row{display:flex;align-items:center;gap:1.5rem;min-height:72px}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;color:var(--ink);white-space:nowrap}
.brand:hover{color:var(--ink)}.brand svg{width:40px;height:40px;flex:none}
.brand__t{display:flex;flex-direction:column;gap:.18rem}
.brand__t b{font:700 1.3rem/1 var(--f-head);letter-spacing:-.02em}
.brand__t i{font:500 12px/1 var(--f-body);font-style:normal;color:var(--muted);letter-spacing:.02em}
.nav{display:flex;align-items:center;gap:1rem;margin-left:auto}
.nav__list{display:flex;gap:.1rem}
.nav__list>li{position:relative}
.nav__list>li>a{display:flex;align-items:center;gap:.35rem;padding:.6rem .8rem;border-radius:var(--r-sm);color:var(--ink);text-decoration:none;font-weight:500;font-size:16px;white-space:nowrap}
.nav__list>li>a:hover,.nav__list>li:focus-within>a{background:var(--tint);color:var(--accent)}
.has-dd>a::after{content:'';width:6px;height:6px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translateY(-2px)}
.dd{position:absolute;left:0;top:calc(100% + 6px);min-width:260px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:.5rem;display:none}
.dd::before{content:'';position:absolute;left:0;right:0;top:-8px;height:8px}
.has-dd:hover>.dd,.has-dd:focus-within>.dd{display:block}
.dd a{display:block;padding:.55rem .75rem;border-radius:8px;color:var(--ink);text-decoration:none;font-size:15.5px}
.dd a:hover{background:var(--tint);color:var(--accent)}
.dd small{display:block;color:var(--muted);font-size:13px;line-height:1.3}
.hsearch input{width:180px;min-height:42px;padding:.5rem .9rem;border:1px solid var(--line);border-radius:999px;background:var(--bg);font-size:15px}
.hsearch input:focus{border-color:var(--accent);outline:2px solid var(--tint);background:var(--surface)}
.menu-btn{display:none;margin-left:auto;min-height:42px;padding:.4rem 1rem;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);font-weight:600;cursor:pointer}
.hero{position:relative;padding:3.25rem 0 4.5rem;background:var(--bg);overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:36px 36px;opacity:.55;-webkit-mask-image:linear-gradient(90deg,var(--ink) 0,transparent 62%);mask-image:linear-gradient(90deg,var(--ink) 0,transparent 62%)}

.hero__grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,520px);gap:4.5rem;align-items:center}
.hero h1{font-size:clamp(2.4rem,4.8vw,3.9rem);max-width:12ch}
.mark{background:linear-gradient(transparent 64%,var(--tint) 64%);box-decoration-break:clone;-webkit-box-decoration-break:clone}
.lede{font-size:1.2rem;line-height:1.55;color:var(--muted);max-width:44ch;margin:1.25rem 0 1.5rem}
.equiv{display:grid;grid-template-columns:repeat(2,1fr);max-width:480px;margin:2rem 0 0;border:1px solid var(--ink);border-radius:var(--r-sm);background:var(--surface)}
.equiv div{padding:.85rem 1rem;border-bottom:1px solid var(--line)}
.equiv div:nth-child(odd){border-right:1px solid var(--line)}
.equiv div:nth-last-child(-n+2){border-bottom:0}
.equiv dt{font-size:13px;color:var(--muted);line-height:1.3}
.equiv dd{margin:.15rem 0 0;font-size:17px}
.conv{background:var(--surface);border:1px solid var(--ink);border-radius:var(--r-md);padding:1.5rem;box-shadow:8px 8px 0 var(--tint)}
.seg{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;background:var(--bg);border:1px solid var(--line);border-radius:var(--r-sm);margin-bottom:1.25rem}
.seg button{min-height:42px;border:0;border-radius:7px;background:transparent;font-weight:600;font-size:15px;cursor:pointer;color:var(--muted)}
.seg button[aria-pressed='true']{background:var(--accent);color:#fff}
.conv label,.lbl{display:block;font-weight:600;font-size:14px;margin:0 0 .4rem}
.conv select,.field input{width:100%;min-height:50px;padding:.6rem .9rem;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);font-size:17px}
.conv select:focus,.field input:focus{border-color:var(--accent);outline:3px solid var(--tint)}
.row2{display:grid;grid-template-columns:1fr;gap:1rem;margin-bottom:.9rem}
.field{position:relative}.field input{padding-right:3.4rem;font-family:var(--f-mono);font-weight:500;font-size:20px}
.unit{position:absolute;right:.9rem;top:50%;transform:translateY(-50%);color:var(--muted);font-weight:500}
.chips{display:flex;flex-wrap:wrap;gap:.45rem;margin:0 0 1.25rem}
.chips button{min-height:38px;padding:.3rem .8rem;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);font:500 15px var(--f-mono);cursor:pointer}
.chips button:hover{border-color:var(--accent);color:var(--accent)}.chips button[aria-pressed='true']{background:var(--tint);border-color:var(--accent);color:var(--accent)}
.result{border-top:1px dashed var(--ink);padding-top:1.2rem}
.result__row{display:grid;grid-template-columns:118px minmax(0,1fr);gap:1.25rem;align-items:center;margin-bottom:1rem}
.cup{display:block;width:118px;height:auto}
.cup .c-body{fill:none;stroke:var(--ink);stroke-width:2.5;stroke-linejoin:round}
.cup .c-fill{fill:var(--accent);opacity:.9;transition:y .5s cubic-bezier(.3,.7,.2,1),height .5s cubic-bezier(.3,.7,.2,1)}
.cup .c-tick{stroke:var(--ink);stroke-width:1.6}
.cup text{font:500 11px var(--f-mono);fill:var(--ink)}
.result__main{display:flex;align-items:baseline;gap:.6rem;flex-wrap:wrap}
.result__main .num{font-size:clamp(2.4rem,5vw,3.2rem);line-height:1;color:var(--accent)}
.result__main span:last-child{font:600 1.15rem var(--f-head)}
.result__sub{margin:.55rem 0 0;font-size:1.02rem}
.result__more{display:grid;grid-template-columns:repeat(3,1fr);gap:.75rem;margin:0 0 1rem}
.result__more div{padding:.65rem .75rem;background:var(--bg);border-radius:var(--r-sm)}
.result__more dt{font-size:13px;color:var(--muted)}.result__more dd{margin:.1rem 0 0;font-size:16px}
.src{font-size:14px;color:var(--muted);margin:0}
.section{padding:4.75rem 0;border-top:1px solid var(--line)}
.section--card{background:var(--surface)}
.section__head{max-width:60ch;margin-bottom:2.25rem}
.section h2{font-size:clamp(1.8rem,3vw,2.5rem)}

.section__head p{color:var(--muted);margin:.9rem 0 0}
.tbl-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--ink);border-radius:var(--r-md)}
.tbl{width:100%;border-collapse:collapse;font-size:15px;min-width:640px}
.tbl th,.tbl td{padding:.8rem 1.1rem;text-align:left;border-bottom:1px solid var(--line);vertical-align:baseline}
.tbl th{font:600 12.5px/1.2 var(--f-body);letter-spacing:.05em;text-transform:uppercase;color:var(--bg);background:var(--ink);border-bottom:0}
.tbl tbody tr:nth-child(even) td{background:var(--bg)}
.tbl tbody tr:last-child td{border-bottom:0}.tbl tbody tr:hover td{background:var(--tint)}
.tbl td:first-child{font-weight:500}
.tbl a{font-weight:600}
.filter{display:flex;gap:1rem;align-items:center;margin:0 0 1rem;flex-wrap:wrap}
.filter input{width:min(100%,380px);min-height:46px;padding:.5rem .9rem;border:1px solid var(--ink);border-radius:var(--r-sm);background:var(--surface)}
.filter span{color:var(--muted);font-size:14px}
.why{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:4rem;align-items:center}
.why p{color:var(--muted);max-width:52ch}
.bars{display:grid;gap:1.2rem;background:var(--bg);border:1px solid var(--ink);border-radius:var(--r-md);padding:1.75rem}
.bars li{display:grid;grid-template-columns:130px 1fr 64px;gap:1rem;align-items:center;font-size:15px}
.bars .bar{position:relative;height:18px;background:var(--surface);border:1px solid var(--line);border-radius:4px;overflow:hidden}
.bars .bar::after{content:'';position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent 0 calc(12.5% - 1px),var(--surface) calc(12.5% - 1px) 12.5%);opacity:.8}
.bars .bar i{display:block;height:100%;width:var(--w);background:var(--accent)}
.bars .num{text-align:right}
.bars li.bars__note{display:block;font-size:14px;color:var(--muted);margin:0}
.faq{max-width:820px}.faq details{border-top:1px solid var(--line)}.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;padding:1.2rem 2.5rem 1.2rem 0;font:600 1.15rem/1.3 var(--f-head);list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';position:absolute;right:0;top:1rem;width:30px;height:30px;display:grid;place-items:center;border:1px solid var(--ink);border-radius:8px;font:500 1.2rem/1 var(--f-mono);color:var(--ink)}
.faq details[open] summary::after{content:'-';background:var(--accent);border-color:var(--accent);color:#fff}
.faq details p{margin:0 0 1.3rem;max-width:64ch;color:var(--muted)}
.topics{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem}
.topics h3{font-size:1.1rem;margin-bottom:.8rem}
.topics li a{display:block;padding:.3rem 0;text-decoration:none;color:var(--ink)}.topics li a:hover{color:var(--accent)}
.site-footer{background:var(--ink);color:var(--line);padding:0 0 2rem;position:relative}
.site-footer{padding-top:3.5rem}
.site-footer .brand,.site-footer .brand:hover{color:var(--bg)}
.site-footer .brand__t i{color:var(--line)}
.foot{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:2.5rem}
.foot h3{font:600 13px/1.2 var(--f-body);letter-spacing:.07em;text-transform:uppercase;color:var(--tint);margin-bottom:1rem}
.foot li a{display:inline-block;padding:.3rem 0;color:var(--line);text-decoration:none}.foot li a:hover{color:#fff;text-decoration:underline}
.foot p{color:var(--line);font-size:15px;max-width:38ch}
.legal{margin-top:2.75rem;padding-top:1.25rem;border-top:1px solid var(--muted);display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:14px;color:var(--line)}
@media (max-width:1100px){.hsearch input{width:130px}.nav__list>li>a{padding:.55rem .6rem}.brand__t i{display:none}}
@media (max-width:900px){.hero__grid,.why{grid-template-columns:1fr;gap:2.25rem}.hero h1{max-width:16ch}.foot{grid-template-columns:1fr 1fr}.topics{grid-template-columns:1fr 1fr}.equiv{display:none}.menu-btn{display:inline-block}.nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--surface);border-bottom:1px solid var(--line);padding:1rem 1.25rem 1.5rem;flex-direction:column;align-items:stretch;gap:1rem}.nav.is-open{display:flex}.nav__list{flex-direction:column}.nav__list>li>a{padding:.8rem .6rem}.dd{display:block;position:static;border:0;padding:0 0 .4rem 1rem;min-width:0}.dd::before{display:none}.has-dd>a::after{display:none}.hsearch input{width:100%}}
@media (max-width:560px){.hero{padding:2rem 0 3.5rem}.conv{padding:1.1rem;box-shadow:5px 5px 0 var(--tint)}.result__row{grid-template-columns:96px minmax(0,1fr);gap:1rem}.cup{width:96px}.result__more{grid-template-columns:1fr 1fr}.bars li{grid-template-columns:96px 1fr 52px;gap:.6rem}.section{padding:3.25rem 0}.foot{grid-template-columns:1fr}.topics{grid-template-columns:1fr}}
.page-head{padding:3rem 0 1.5rem}.page-head h1{font-size:clamp(2rem,4vw,3rem)}
.crumbs{font-size:14px;color:var(--muted);margin:0 0 1rem}.crumbs a{color:var(--muted)}.crumbs span{margin:0 .45rem}
.prose{max-width:72ch;padding-bottom:4rem}.prose h2{font-size:1.7rem;margin:2.2rem 0 .8rem}.prose h3{font-size:1.3rem;margin:1.8rem 0 .6rem}.prose ul{list-style:disc;padding-left:1.4rem;margin:0 0 1em}.prose ol{list-style:decimal;padding-left:1.4rem;margin:0 0 1em}
.post-list article{padding:1.25rem 0;border-top:1px solid var(--line)}.post-list h2{font-size:1.4rem}.post-list h2 a{text-decoration:none;color:var(--ink)}.pager{display:flex;gap:1.5rem;padding:2rem 0 4rem}
.nf{padding:6rem 0}.nf .num{font-size:4rem;color:var(--accent);margin:0}
.hero--page{padding:2.5rem 0 3.5rem}.hero--page h1{max-width:18ch;font-size:clamp(2.1rem,4vw,3.2rem)}.hero--page .crumbs{margin-bottom:1.2rem}
.links{display:flex;flex-wrap:wrap;gap:.55rem}.links a{display:inline-block;padding:.5rem .85rem;border:1px solid var(--line);background:var(--surface);border-radius:var(--r-sm);text-decoration:none;color:var(--ink);font-size:15px}.links a:hover{border-color:var(--accent);color:var(--accent)}
.note{max-width:68ch;color:var(--muted)}

.faq-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:4rem;align-items:start}
.faq-head{position:sticky;top:110px}.faq-head p{color:var(--muted);margin:.9rem 0 0;max-width:30ch}
.faq{display:grid;gap:.75rem;max-width:none}
.faq details,.faq details:last-child{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:0 1.35rem}
.faq details[open]{border-color:var(--ink)}
.faq summary{padding:1.2rem 2.75rem 1.2rem 0}
.faq summary::after{top:50%;transform:translateY(-50%)}
.faq details[open] summary{padding-bottom:.6rem}
.faq details p{max-width:62ch}
@media (max-width:900px){.faq-grid{grid-template-columns:1fr;gap:1.75rem}.faq-head{position:static}}

.hero--page .hero__grid{align-items:start}.hero--page .hero__copy{padding-top:0}.hero--page .crumbs{margin:0 0 1rem;line-height:1.4}.hero--page .hero__copy>.crumbs+h1{margin-top:0}
.para{color:var(--muted);max-width:50ch;margin:0 0 1.25rem}.hero--page .equiv{margin-top:.5rem}
.proc{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:2.5rem;align-items:start}
.steps{display:grid;gap:1rem;counter-reset:s}.steps li{display:grid;grid-template-columns:44px 1fr;gap:1rem;align-items:start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:1.1rem 1.25rem}
.steps li>.num{display:grid;place-items:center;width:44px;height:44px;border-radius:var(--r-sm);background:var(--accent);color:#fff;font-size:1.2rem}
.steps b{display:block;font:700 1.1rem/1.3 var(--f-head);margin-bottom:.25rem}.steps p{margin:0;color:var(--muted);font-size:16px}
.example{background:var(--ink);color:var(--bg);border-radius:var(--r-md);padding:1.5rem}
.ex-label{font:600 13px/1 var(--f-body);letter-spacing:.07em;text-transform:uppercase;color:var(--tint);margin:0 0 1rem}
.ex-row{display:flex;justify-content:space-between;gap:1rem;align-items:baseline;padding:.8rem 0;border-top:1px solid var(--muted)}.ex-row:first-of-type{border-top:0}
.ex-calc{font:500 15px/1.4 var(--f-mono);color:var(--line)}.ex-res{font-size:1.15rem;color:#fff;text-align:right;white-space:nowrap}
.facts{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:2.5rem;align-items:start}
.facts h3{font-size:1.25rem;margin-bottom:1rem}
.stats{background:var(--surface);border:1px solid var(--ink);border-radius:var(--r-md);overflow:hidden}.stats>div{display:flex;justify-content:space-between;gap:1rem;padding:.9rem 1.25rem;border-top:1px solid var(--line)}.stats>div:first-child{border-top:0}.stats dt{color:var(--muted)}.stats dd{margin:0;text-align:right}
.tips ul{display:grid;gap:.9rem}.tips li{position:relative;padding:0 0 0 2rem;color:var(--ink)}.tips li::before{content:'';position:absolute;left:0;top:.5rem;width:12px;height:12px;border-radius:3px;background:var(--accent)}
@media (max-width:900px){.proc,.facts{grid-template-columns:1fr;gap:1.75rem}}
@media (max-width:560px){.ex-row{flex-direction:column;gap:.2rem}.ex-res{text-align:left}.steps li{grid-template-columns:38px 1fr;padding:1rem}.steps li>.num{width:38px;height:38px}}