.skip{z-index:100;border-radius:var(--r-sm);background:var(--primary);color:var(--on-primary);padding:8px 12px;position:absolute;top:-48px;left:16px}.skip:focus{color:var(--on-primary);top:12px}.small{font-size:12px;line-height:18px}.muted{color:var(--mute)}.card{background:var(--canvas-elevated);border:1px solid var(--hairline);border-radius:var(--r-md);box-shadow:var(--shadow-whisper)}code{font-family:var(--font-mono);background:var(--hairline-soft);color:var(--ink);border-radius:4px;padding:1px 5px;font-size:.86em}.nav{z-index:20;background:color-mix(in srgb, var(--canvas) 85%, transparent);-webkit-backdrop-filter:saturate(180%)blur(12px);border-bottom:1px solid var(--hairline);position:sticky;top:0}.nav-inner{align-items:center;gap:16px;height:60px;display:flex}.nav nav{gap:24px;margin-left:auto;display:flex}.wordmark{color:var(--ink);font-family:var(--font-mono);letter-spacing:.04em;align-items:center;gap:10px;font-size:14px;font-weight:500;display:inline-flex}.wordmark:hover{color:var(--ink)}.nav-link{color:var(--body);padding:6px 0;transition:color .15s;position:relative}.nav-link:after{content:"";background:var(--ink);height:1.5px;transition:transform .2s;position:absolute;bottom:0;left:0;right:0;transform:scaleX(0)}.nav-link[aria-current]:after{transform:scaleX(1)}.round-btn{border:1px solid var(--hairline);border-radius:var(--r-full);background:var(--canvas-elevated);width:34px;height:34px;color:var(--body);cursor:pointer;place-items:center;margin-left:8px;display:grid}.round-btn:hover{color:var(--ink);background:var(--hairline-soft)}.i-moon,[data-theme=dark] .i-sun{display:none}[data-theme=dark] .i-moon{display:block}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .i-sun{display:none}:root:not([data-theme=light]) .i-moon{display:block}}.intro{isolation:isolate;padding:14px 0 0;position:relative}h1{letter-spacing:-2px;margin:0 0 14px;font-size:48px;font-weight:600;line-height:56px}.intro-lead{color:var(--body);max-width:none;margin:0;font-size:17px;line-height:27px}.converter-section{padding:16px 0 56px}.step-head{letter-spacing:-.3px;align-items:center;gap:10px;margin:24px 0 14px;font-size:18px;font-weight:500;line-height:26px;display:flex}.step-num{border:1.5px solid var(--ink);width:22px;height:22px;font-family:var(--font-mono);border-radius:6px;place-items:center;font-size:12px;font-weight:500;display:inline-grid}.step-row{justify-content:space-between;align-items:center;gap:12px;margin-top:28px;display:flex}.step-row .step-head{margin:0}.workbench{box-shadow:var(--shadow-float);grid-template-columns:minmax(0,1fr) minmax(0,1fr);margin-top:16px;display:grid;overflow:hidden}.wb-input{min-width:0;padding:28px}.wb-answer{border-left:1px solid var(--hairline);min-width:0;padding:28px;transition:opacity .2s;position:relative}.wb-answer .step-head{margin:0 0 18px}.dir{gap:8px;margin-bottom:22px;display:grid}.dir-row{grid-template-columns:40px minmax(0,1fr);align-items:center;gap:10px;display:grid}.dir-label{letter-spacing:.06em;text-transform:uppercase;color:var(--mute);font-size:12px;font-weight:600}.mode-tabs{background:var(--hairline-soft);border-radius:10px;flex-wrap:wrap;gap:2px;width:fit-content;max-width:100%;padding:3px;display:flex}.mode-tabs::-webkit-scrollbar{display:none}.mode{height:32px;color:var(--mute);font:inherit;white-space:nowrap;cursor:pointer;background:0 0;border:0;border-radius:8px;flex:none;padding:0 12px;font-size:13px;font-weight:500;transition:background .15s,color .15s}.mode:hover{color:var(--ink)}.mode[aria-checked=true]{background:var(--shell);color:var(--shell-ink)}.mode:disabled{color:var(--faint);opacity:.7;cursor:not-allowed}.mode:disabled:hover{color:var(--faint)}.answer-value[data-len=l]{letter-spacing:-.02em;font-size:40px}.answer-value[data-len=xl]{font-family:var(--font-mono);letter-spacing:0;font-size:20px;font-weight:500;line-height:1.45}.working-sum .then{color:var(--ink)}.field-label{margin-bottom:8px;font-size:13px;font-weight:500;display:block}.field{background:var(--canvas-elevated);border:1px solid var(--hairline);border-radius:10px;align-items:center;height:56px;transition:border-color .15s,box-shadow .2s;display:flex}.field:hover{border-color:var(--faint)}.field.invalid{border-color:var(--error)}.affix{border-right:1px solid var(--hairline);background:var(--canvas);min-width:52px;font-family:var(--font-mono);color:var(--mute);border-radius:9px 0 0 9px;align-self:stretch;place-items:center;padding:0 12px;font-size:14px;display:grid}#input{min-width:0;height:100%;font-family:var(--font-mono);color:var(--ink);background:0 0;border:0;outline:0;flex:1;padding:0 14px;font-size:20px}#input::placeholder{color:var(--faint)}.clear-btn{border-radius:var(--r-full);background:var(--hairline-soft);width:26px;height:26px;color:var(--body);cursor:pointer;border:0;place-items:center;margin-right:14px;display:grid}.clear-btn:hover{background:var(--hairline);color:var(--ink)}.hint{color:var(--mute);margin:8px 0 0;font-size:12px;line-height:18px}.hint code{font-size:11px}.error{color:var(--error);margin:8px 0 0;font-size:13px}.examples-label{margin-top:22px}.chips{flex-wrap:wrap;gap:6px;display:flex}.chip{border:1px solid var(--hairline);background:var(--canvas-elevated);height:30px;color:var(--body);font-family:var(--font-mono);cursor:pointer;border-radius:64px;padding:0 12px;font-size:12px;transition:background .15s,color .15s,border-color .15s}.chip:hover{border-color:var(--faint);color:var(--ink)}.answer-label{font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--mute);margin:0 0 4px;font-size:11px;font-weight:500}.answer-line{flex-wrap:wrap;align-items:baseline;gap:4px 10px;display:flex}.answer-value{letter-spacing:-2.6px;font-variant-numeric:tabular-nums;overflow-wrap:anywhere;min-width:0;font-size:56px;font-weight:600;line-height:64px}.answer-unit{font-family:var(--font-mono);color:var(--mute);font-size:15px}.pop{animation:.3s cubic-bezier(.2,.7,.2,1) pop}@keyframes pop{0%{opacity:.4;transform:translateY(4px)}to{opacity:1;transform:none}}.answer-sentence{color:var(--body);overflow-wrap:anywhere;margin:6px 0 0;line-height:22px}.wb-answer.idle .answer-value,.wb-answer.idle .answer-sentence{color:var(--faint)}.actions{flex-wrap:wrap;gap:8px;margin:18px 0;display:flex}.act{border:1px solid var(--hairline);border-radius:var(--r-sm);background:var(--canvas-elevated);height:32px;color:var(--ink);font:inherit;cursor:pointer;align-items:center;gap:6px;padding:0 12px;font-size:13px;font-weight:500;transition:background .15s,border-color .15s;display:inline-flex}.act:hover:not(:disabled){background:var(--hairline-soft);border-color:var(--faint)}.act:disabled{opacity:.45;cursor:default}.panel{border:1px solid var(--hairline);background:var(--canvas-elevated);border-radius:8px;margin-top:8px}.panel>summary{cursor:pointer;border-radius:8px;align-items:center;gap:10px;padding:11px 14px;font-size:13px;font-weight:500;list-style:none;display:flex}.panel>summary::-webkit-details-marker{display:none}.panel>summary:before{content:"";border-bottom:1.5px solid;border-right:1.5px solid;width:6px;height:6px;transition:transform .2s;transform:rotate(-45deg)}.panel[open]>summary:before{transform:rotate(45deg)}.panel>summary:hover{background:var(--hairline-soft)}.panel-body{padding:4px 14px 14px}.panel-body.flush{border-top:1px solid var(--hairline);padding:0}.panel-body>.small:first-child{margin:0 0 8px}.bases{margin:0}.base-row{border-bottom:1px solid var(--hairline-soft);justify-content:space-between;align-items:center;gap:12px;padding:4px 0;display:flex}.base-row:last-child{border-bottom:0}.base-row dt{color:var(--mute);flex-shrink:0;font-size:12px}.base-row dd{min-width:0;margin:0}.base-val{max-width:100%;color:var(--ink);font-family:var(--font-mono);text-align:right;overflow-wrap:anywhere;cursor:copy;background:0 0;border:0;border-radius:4px;padding:4px 6px;font-size:13px}.base-val:hover:not(:disabled){background:var(--hairline-soft)}.base-val:disabled{color:var(--mute);cursor:default}.base-val.done{color:var(--mute)}.table-scroll{overflow-x:auto}table{border-collapse:collapse;width:100%}th{text-align:left;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.05em;color:var(--mute);border-bottom:1px solid var(--hairline);white-space:nowrap;padding:10px 14px;font-size:10.5px;font-weight:500}td{font-family:var(--font-mono);border-bottom:1px solid var(--hairline-soft);white-space:nowrap;padding:8px 14px;font-size:13px}th.r,td.r{text-align:right}tbody tr:hover{background:var(--hairline-soft)}.digit-pill{background:var(--primary);min-width:24px;height:24px;color:var(--on-primary);border-radius:6px;place-items:center;padding:0 5px;font-weight:500;display:inline-grid}.digit-pill.dim{background:var(--hairline);color:var(--body)}.working-sum{font-family:var(--font-mono);color:var(--body);background:var(--canvas);overflow-wrap:anywhere;margin:0;padding:12px 14px;font-size:13px}.working-sum strong{color:var(--ink);font-weight:600}.guide{border-top:1px solid var(--hairline);padding:56px 0}.eyebrow{align-items:center;gap:8px;display:flex}.h2{letter-spacing:-1.3px;margin:0 0 10px;font-size:34px;font-weight:600;line-height:40px}.h2.mt{margin-top:48px}.h3{letter-spacing:-.4px;color:var(--heading);margin:0 0 6px;font-size:20px;font-weight:600;line-height:28px}.h3.mt{margin-top:40px}.lead{color:var(--body);margin:0 0 20px;font-size:16px;line-height:26px}.how{grid-template-columns:repeat(3,1fr);gap:16px;margin:0;padding:0;list-style:none;display:grid}.how-card{padding:24px;position:relative}.how-card:not(:last-child):after{content:"";border-top:1.5px dashed var(--faint);width:17px;position:absolute;top:38px;right:-17px}.how-num{background:var(--hairline-soft);border:1px solid var(--hairline);width:30px;height:30px;font-family:var(--font-mono);border-radius:50%;place-items:center;font-size:13px;font-weight:500;display:inline-grid}.how-card h3,.formula-card h3{letter-spacing:-.3px;margin:16px 0 8px;font-size:17px;font-weight:600;line-height:24px}.how-card p,.formula-card p{color:var(--body);margin:0;line-height:23px}.formulas{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.formula-card{padding:24px}.formula-card h3{margin-top:0}.formula{border:1px solid var(--hairline);background:var(--canvas);border-radius:6px;margin-bottom:14px;padding:8px 12px;font-size:12.5px;display:inline-block}.tiles{grid-template-columns:repeat(8,1fr);gap:10px;margin-top:18px;display:grid}.tile{border:1px solid var(--hairline);border-radius:var(--r-md);background:var(--canvas-elevated);color:var(--ink);font:inherit;text-align:left;cursor:pointer;flex-direction:column;align-items:flex-start;gap:2px;padding:14px 14px 12px;transition:border-color .15s,transform .2s,box-shadow .2s;display:flex}.tile:hover{border-color:var(--faint);box-shadow:var(--shadow-float);transform:translateY(-2px)}.tile-hex{letter-spacing:-1px;font-size:26px;font-weight:600;line-height:30px}.tile-dec{color:var(--body);font-size:13px}.tile-bin{font-family:var(--font-mono);color:var(--mute);letter-spacing:.08em;font-size:11px}.faq{border-top:1px solid var(--hairline);padding:56px 0}.faq-grid{grid-template-columns:1fr 1.7fr;align-items:start;gap:48px;display:grid}.faq-intro{position:sticky;top:92px}.faq-intro p:last-child{line-height:23px}.faq-list{padding:4px 22px}.faq-item{border-bottom:1px solid var(--hairline)}.faq-item:last-child{border-bottom:0}.faq-item summary{cursor:pointer;align-items:center;gap:14px;padding:16px 0;list-style:none;display:flex}.faq-item summary::-webkit-details-marker{display:none}.faq-num{font-family:var(--font-mono);color:var(--mute);font-size:12px}.faq-q{flex:1;font-size:15px;font-weight:500}.chev{color:var(--mute);flex-shrink:0;transition:transform .2s}.faq-item[open] .chev{transform:rotate(180deg)}.faq-item summary:hover .faq-q{text-underline-offset:3px;text-decoration:underline;text-decoration-color:var(--faint)}.faq-item p{color:var(--body);margin:-4px 0 18px 32px;line-height:24px}@media (width<=1000px){.tiles{grid-template-columns:repeat(4,1fr)}}@media (width<=860px){.workbench{grid-template-columns:minmax(0,1fr)}.wb-answer{border-left:0;border-top:1px solid var(--hairline)}.how,.formulas{grid-template-columns:1fr}.how-card:not(:last-child):after{border-top:0;border-left:1.5px dashed var(--faint);width:0;height:17px;inset:auto auto -17px 38px}.faq-grid{grid-template-columns:1fr;gap:24px}.faq-intro{position:static}}@media (width<=640px){.nav nav{display:none}.round-btn{margin-left:auto}.intro{padding-top:10px}h1{letter-spacing:-1.3px;font-size:34px;line-height:42px}.intro-lead{font-size:15px;line-height:24px}.wb-input,.wb-answer{padding:20px}.answer-value{letter-spacing:-1.6px;font-size:40px;line-height:48px}.guide,.faq{padding:40px 0}.h2{font-size:28px;line-height:34px}.tiles{gap:8px}.tile{padding:10px}.tile-hex{font-size:22px;line-height:26px}.faq-list{padding:4px 16px}.faq-item p{margin-left:0}}.nav{background:var(--shell);-webkit-backdrop-filter:none;border-bottom:1px solid var(--shell-line)}.wordmark,.wordmark:hover{color:var(--shell-ink);font-family:var(--font-display);letter-spacing:-.015em;white-space:nowrap;font-size:17px;font-weight:700}@media (width<=640px){.wordmark,.wordmark:hover{white-space:normal;font-size:15px;line-height:1.2}}.nav-link{color:var(--shell-mute);font-family:var(--font-ui);letter-spacing:.08em;text-transform:uppercase;font-size:12px;font-weight:700}.nav-link:hover,.nav-link[aria-current]{color:var(--shell-ink)}.nav-link:after{background:var(--action)}.round-btn{border-color:var(--shell-line);color:var(--shell-mute);background:0 0}.round-btn:hover{background:var(--shell-hover);color:var(--shell-ink)}h1{font-family:var(--font-display);letter-spacing:-.035em;color:var(--heading);margin-bottom:12px;font-size:44px;font-weight:700;line-height:1.02}.h2{font-family:var(--font-display);letter-spacing:-.03em;color:var(--heading);margin-bottom:14px;font-size:42px;font-weight:700;line-height:1.08}.intro-lead{color:var(--body);max-width:none}.step-head{letter-spacing:-.01em;font-weight:600}.step-num{background:var(--shell);color:var(--shell-ink);border:0}.field:focus-within{border-color:var(--shell);box-shadow:0 0 0 4px var(--action-soft)}.chip:hover{border-color:var(--border-strong)}.workbench{border-color:var(--hairline)}.wb-answer{--ink:var(--shell-ink);--body:var(--panel-body);--mute:var(--shell-mute);--faint:var(--panel-faint);--hairline:var(--shell-line);--hairline-soft:var(--panel-soft);--canvas:var(--panel-canvas);--canvas-elevated:var(--panel-elevated);--primary:var(--action);--on-primary:var(--on-action);--table-ink:var(--panel-table-ink);--link-soft:#b4f05a40;background:var(--shell);color:var(--ink);border-left:0}.wb-answer .step-num{background:var(--action);color:var(--on-action)}.answer-label{color:var(--action);font-family:var(--font-sans);letter-spacing:.08em;font-weight:600}.answer-value{font-family:var(--font-display);letter-spacing:-.035em;font-size:64px;font-weight:600;line-height:1.05}.answer-unit{color:var(--mute)}.act.primary{background:var(--action);border-color:var(--action);color:var(--on-action)}.act.primary:hover:not(:disabled){background:var(--action-hover);border-color:var(--action-hover)}.act.done{border-color:var(--action)}th{font-family:var(--font-sans);letter-spacing:.06em;color:var(--table-ink);font-weight:600}.how-num{background:var(--action);color:var(--on-action);border:0}.how-card:not(:last-child):after{border-color:var(--border-strong)}.formula{background:var(--shell);border-color:var(--shell);color:var(--shell-ink)}.tile-hex{font-family:var(--font-display);letter-spacing:-.02em;font-size:32px;font-weight:600;line-height:1.1}code{background:var(--hairline-soft)}.faq-num{color:var(--label-accent);font-weight:500}.faq-q{font-weight:600}@media (width<=860px){.wb-answer{border-top:0}}@media (width<=640px){h1{font-size:30px}.h2{font-size:32px}.answer-value{font-size:46px}.tile-hex{font-size:26px}}.about{border-top:1px solid var(--hairline);padding:56px 0}.prose{max-width:760px}.prose h3{letter-spacing:-.3px;color:var(--heading);margin:28px 0 8px;font-size:20px;font-weight:600;line-height:28px}.prose p{color:var(--body);margin:0;font-size:16px;line-height:1.7}@media (width<=640px){.about{padding:40px 0}}.intro{overflow:hidden}.intro:before{content:"";z-index:-1;background:radial-gradient(closest-side, var(--glow), transparent);pointer-events:none;border-radius:50%;width:620px;height:620px;position:absolute;top:-220px;right:-160px}.answer-value{color:var(--action)}.wb-answer.idle .answer-value{color:var(--faint)}.tile:hover{border-color:var(--focus)}.all-conv{border-top:1px solid var(--hairline);padding:56px 0}.conv-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;display:grid}.conv-card{border:1px solid var(--hairline);border-radius:var(--r-md);background:var(--canvas-elevated);color:var(--ink);flex-direction:column;gap:6px;padding:18px;text-decoration:none;transition:border-color .15s,transform .2s,box-shadow .2s;display:flex}.conv-card[aria-current=page]{border-color:var(--shell);box-shadow:0 0 0 1px var(--shell)}.conv-card:hover{color:var(--ink);border-color:var(--focus);box-shadow:var(--shadow-float);transform:translateY(-2px)}.conv-card h3{font-family:var(--font-display);letter-spacing:-.015em;margin:0;font-size:17px;font-weight:700}.conv-card p{color:var(--body);margin:0;font-size:13.5px;line-height:1.5}.conv-card code{background:var(--shell);color:var(--action);border-radius:6px;align-self:flex-start;margin-top:4px;padding:3px 8px;font-size:12px}@media (width<=1000px){.conv-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (width<=760px){.conv-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=420px){.conv-grid{grid-template-columns:minmax(0,1fr)}.all-conv{padding:40px 0}}.worked{border-radius:var(--r-md);background:var(--shell);color:var(--shell-ink);font-family:var(--font-mono);margin:4px 0 8px;padding:16px 18px;font-size:14px;line-height:1.7;overflow-x:auto}.worked code{color:inherit;font-size:inherit;background:0 0;padding:0}.conv-table{max-width:520px;max-height:520px;padding:0;overflow:auto}.conv-table thead th{background:var(--canvas-elevated);position:sticky;top:0}.motion .reveal{opacity:0;transition:opacity .55s cubic-bezier(.2,.7,.2,1),transform .55s cubic-bezier(.2,.7,.2,1);transition-delay:calc(var(--i,0) * 60ms);transform:translateY(18px)}.motion .reveal.in{opacity:1;transform:none}.motion .faq-item[open]>p,.motion .panel[open]>.panel-body{animation:.3s cubic-bezier(.2,.7,.2,1) glide-in}.motion .panel.rows-in tbody tr{animation:.35s cubic-bezier(.2,.7,.2,1) both row-in;animation-delay:calc(var(--i,0) * 45ms)}.motion .act.done{animation:.35s cubic-bezier(.3,1.6,.5,1) bounce}@keyframes glide-in{0%{opacity:0;transform:translateY(-6px)}}@keyframes row-in{0%{opacity:0;transform:translate(-10px)}}@keyframes bounce{50%{transform:scale(1.06)}}