:root{--bg: oklch(21% .034 175);--bg-elev: oklch(25% .038 175);--paper: oklch(28% .04 175);--ink: oklch(96% .008 90);--ink-muted: oklch(78% .022 90);--ink-dim: oklch(60% .045 150);--rule: oklch(34% .04 175);--rule-strong: oklch(46% .045 175);--accent: oklch(78% .16 85);--accent-hover: oklch(85% .18 85);--accent-soft: oklch(78% .16 85 / .14);--accent-ring: oklch(78% .16 85 / .36);--accent-2: oklch(80% .16 145);--danger: oklch(70% .22 28);--measure: 38rem;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.5rem;--space-6: 2rem;--space-8: 3rem;--space-10: 4.5rem;--font-sans: "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;color-scheme:dark}html,body{margin:0;padding:0}body{font-family:var(--font-sans);font-feature-settings:"ss01";background:var(--bg);color:var(--ink);min-height:100dvh;display:flex;flex-direction:column;line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}::selection{background:var(--accent);color:var(--bg)}.skip-link{position:absolute;left:1rem;top:1rem;background:var(--accent);color:var(--bg);padding:.55rem .9rem;font-weight:600;font-size:.9rem;text-decoration:none;z-index:100;transform:translateY(-200%);transition:transform .18s cubic-bezier(.22,1,.36,1)}.skip-link:focus-visible{transform:translateY(0);outline:2px solid var(--accent);outline-offset:2px}.wrap{width:100%;max-width:var(--measure);margin:0 auto;padding:0 1.25rem}main{flex:1;width:100%}.site-header{padding:var(--space-5) 0 var(--space-4);border-bottom:1px solid var(--rule);margin-bottom:var(--space-6)}.site-header .wrap{display:flex;align-items:baseline;justify-content:space-between;gap:var(--space-4)}.brand{text-decoration:none;color:var(--ink);font-family:var(--font-mono);font-size:.85rem;letter-spacing:0;font-weight:500;display:inline-flex;align-items:center;gap:.55rem}.brand-mark{display:block;border-radius:8px;flex-shrink:0;width:44px;height:44px}.brand b{color:var(--accent);font-weight:600}.brand .slash{color:var(--ink-dim);margin:0 .15rem}.lang-switch{display:flex;gap:var(--space-3);font-family:var(--font-mono);font-size:.8rem}.lang-switch a,.lang-switch span{text-decoration:none;color:var(--ink-dim);text-transform:uppercase;letter-spacing:.08em}.lang-switch a:hover{color:var(--accent)}.lang-switch [aria-current=page]{color:var(--ink)}.lang-switch a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.intro{margin-bottom:var(--space-6)}.intro h1{font-size:clamp(1.6rem,1.5vw + 1.1rem,2.1rem);line-height:1.15;letter-spacing:-.02em;font-weight:600;margin:0 0 var(--space-3);max-width:24ch;text-wrap:balance}.intro h1 .arrow{color:var(--accent);font-family:var(--font-mono);font-weight:400;margin:0 .15em}.intro p{color:var(--ink-muted);margin:0;max-width:56ch;text-wrap:pretty;font-size:1rem}.section{padding:var(--space-6) 0;border-top:1px solid var(--rule)}.section:first-of-type{border-top:2px solid var(--ink)}.section-label{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-dim);margin:0 0 var(--space-3);display:block}.section h2{font-size:1.1rem;letter-spacing:-.01em;font-weight:600;margin:0 0 var(--space-3)}.converter{display:grid;gap:var(--space-4)}.field{display:grid;gap:var(--space-2)}.field label{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-dim)}.field input[type=text]{width:100%;font-family:var(--font-mono);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-size:clamp(2.2rem,6vw + .5rem,3.6rem);font-weight:500;letter-spacing:-.01em;color:var(--ink);background:transparent;border:none;border-bottom:2px solid var(--ink);padding:.3rem 0 .6rem;outline:none;transition:border-color .15s ease,color .15s ease}.field input[type=text]::placeholder{color:var(--ink-dim)}.field input[type=text]:focus-visible{border-bottom-color:var(--accent);color:var(--accent)}.field input[aria-invalid=true]{border-bottom-color:var(--danger);color:var(--danger)}.field-meta{display:flex;justify-content:space-between;gap:var(--space-3);font-size:.82rem;color:var(--ink-dim)}.field-meta .error{color:var(--danger);font-weight:500;min-height:1.2em}.results{display:grid;gap:0;padding:0;margin:0;list-style:none}.result-row{display:grid;grid-template-columns:auto 1fr auto;align-items:baseline;gap:var(--space-4);padding:var(--space-3) 0;border-bottom:1px dashed var(--rule)}.result-row:last-child{border-bottom:none}.result-row .equals{font-family:var(--font-mono);color:var(--ink-dim);font-size:1.2rem;font-weight:400}.result-row .value{font-family:var(--font-mono);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-size:clamp(1.4rem,2.5vw + .6rem,2rem);font-weight:500;color:var(--ink);letter-spacing:-.01em;word-break:break-all}.result-row .unit{font-family:var(--font-sans);color:var(--ink-muted);font-size:.95rem;font-weight:400;margin-left:.15em}.copy-link{background:none;border:none;padding:0;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-dim);cursor:pointer;text-decoration:underline;text-decoration-color:var(--rule-strong);text-underline-offset:4px;transition:color .15s ease,text-decoration-color .15s ease;touch-action:manipulation}.copy-link:hover{color:var(--accent);text-decoration-color:var(--accent)}.copy-link:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.copy-link.copied{color:var(--accent);text-decoration-color:var(--accent)}.ref-table{width:100%;border-collapse:collapse;font-family:var(--font-mono);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-size:.9rem}.ref-table caption{text-align:left;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-dim);padding-bottom:var(--space-3)}.ref-table td,.ref-table th{text-align:left;padding:.65rem 0;border-bottom:1px dashed var(--rule);font-weight:400}.ref-table td:first-child,.ref-table th:first-child{color:var(--ink)}.ref-table td:not(:first-child){color:var(--ink-muted)}.ref-table tbody tr{cursor:pointer;transition:background .12s ease}.ref-table tbody tr:hover{background:var(--accent-soft)}.ref-table tbody tr:hover td:first-child{color:var(--accent)}.ref-table tbody tr:focus-within{outline:2px solid var(--accent);outline-offset:-2px}.ref-table button{all:unset;cursor:pointer;width:100%;display:block;font-family:inherit;font-size:inherit;color:inherit}.guide__lead{color:var(--ink-muted);margin:0 0 var(--space-5);max-width:60ch;text-wrap:pretty}.guide__block{margin-top:var(--space-5);padding-top:var(--space-4);border-top:1px dashed var(--rule)}.guide__block:first-of-type{border-top:none;padding-top:0;margin-top:0}.guide__sub{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-dim);font-weight:500;margin:0 0 var(--space-3)}.guide__block p{color:var(--ink-muted);margin:0;max-width:60ch;text-wrap:pretty}.guide__code{font-family:var(--font-mono);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-size:.85rem;color:var(--ink);background:var(--bg-elev);border-left:2px solid var(--accent);padding:var(--space-3) var(--space-4);margin:0;overflow-x:auto;white-space:pre;line-height:1.7}.guide__list{list-style:none;padding:0;margin:0;display:grid;gap:var(--space-3)}.guide__list li{color:var(--ink-muted);padding-left:1.25rem;position:relative;max-width:62ch;text-wrap:pretty}.guide__list li:before{content:"·";color:var(--accent);font-weight:700;position:absolute;left:.25rem;top:-.05em;font-size:1.4em;line-height:1}.usecases{display:grid;gap:0;margin:0}.usecases__item{padding:var(--space-4) 0;border-bottom:1px dashed var(--rule);display:grid;gap:var(--space-2)}.usecases__item:last-child{border-bottom:none;padding-bottom:0}.usecases__item:first-child{padding-top:0}.usecases dt{font-family:var(--font-mono);font-size:.82rem;letter-spacing:.06em;color:var(--ink);font-weight:500}.usecases dd{margin:0;color:var(--ink-muted);max-width:62ch;text-wrap:pretty}.worked{list-style:none;padding:0;margin:0;counter-reset:worked}.worked__item{position:relative;padding:var(--space-4) 0 var(--space-4) 2.75rem;border-bottom:1px dashed var(--rule);counter-increment:worked}.worked__item:last-child{border-bottom:none}.worked__item:first-child{padding-top:0}.worked__item:before{content:counter(worked,decimal-leading-zero);position:absolute;left:0;top:var(--space-4);font-family:var(--font-mono);font-size:.7rem;letter-spacing:.14em;color:var(--ink-dim)}.worked__item:first-child:before{top:.1rem}.worked__input{display:block;font-family:var(--font-mono);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-size:1.1rem;color:var(--accent);font-weight:500;letter-spacing:-.01em;background:transparent;padding:0;margin:0 0 var(--space-2)}.worked__scenario{margin:0 0 var(--space-2);color:var(--ink);font-size:.95rem;max-width:60ch;text-wrap:pretty}.worked__result{margin:0 0 var(--space-2);font-family:var(--font-mono);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-size:.85rem;color:var(--ink-muted);word-spacing:.05em}.worked__note{margin:0;font-size:.85rem;color:var(--ink-dim);font-style:italic;max-width:60ch;text-wrap:pretty}.prose p{color:var(--ink-muted);margin:0 0 var(--space-3);max-width:60ch}.prose p:last-child{margin-bottom:0}.faq{display:grid;gap:0}.faq details{border-bottom:1px solid var(--rule);padding:var(--space-3) 0}.faq details:last-of-type{border-bottom:none}.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:baseline;gap:var(--space-3);font-weight:500;color:var(--ink);touch-action:manipulation}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";font-family:var(--font-mono);color:var(--accent);font-size:1.1rem;line-height:1;font-weight:400}.faq details[open] summary:after{content:"−"}.faq summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.faq details p{margin:var(--space-3) 0 0;color:var(--ink-muted);max-width:60ch}.ad-slot{margin:6rem 0;padding:var(--space-5);min-height:140px;display:grid;place-items:center;gap:var(--space-2);border:1px dashed var(--rule-strong);background:var(--accent-soft);color:var(--accent)}.ad-slot__label{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.22em;text-transform:uppercase;font-weight:500}.ad-slot--small{min-height:100px}.ad-slot .adsbygoogle{display:block;width:100%}.ad-slot:has(.adsbygoogle){margin:6rem 0;padding:0;border:none;background:none;display:block}.ad-slot:has(.adsbygoogle) .ad-slot__label{color:var(--ink-dim);font-size:.62rem;letter-spacing:.2em;margin-bottom:.4rem;display:block}.site-footer{margin-top:var(--space-8);padding:var(--space-5) 0 var(--space-6);border-top:1px solid var(--rule);font-family:var(--font-mono);font-size:.78rem;letter-spacing:.04em}.site-footer .wrap{display:flex;justify-content:space-between;gap:var(--space-3);color:var(--ink-dim);flex-wrap:wrap}.site-footer__links{display:inline-flex;align-items:baseline;gap:.45rem;flex-wrap:wrap}.site-footer a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--accent);padding-bottom:1px;transition:color .15s ease}.site-footer a:hover{color:var(--accent)}.site-footer a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}