:root{color-scheme:light;--paper:#f6f8fc;--surface:#fff;--ink:#18243a;--muted:#526078;--line:#dce3ef;--border:#a9b8d0;--accent:#2854d7;--button:#2854d7;--hover:#2045b8;--wash:#eef2fb;--hero:#244cc4;--hero-ink:#fff;--hero-muted:#e0e8ff;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:16px;color:var(--ink);background:var(--paper)}
:root[data-theme=dark]{color-scheme:dark;--paper:#111827;--surface:#182338;--ink:#eff4ff;--muted:#b8c5db;--line:#34415a;--border:#64748b;--accent:#a2bbff;--button:#345ed7;--hover:#436ee7;--wash:#25334d;--hero:#162a5b;--hero-muted:#cad8f9}
*{box-sizing:border-box}body{margin:0}a{color:var(--accent);text-underline-offset:3px}button,input{font:inherit}button,a,input{touch-action:manipulation}[hidden]{display:none!important}button,.button-link{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:12px 20px;border:1px solid transparent;border-radius:8px;color:#fff;background:var(--button);font-size:1rem;font-weight:600;line-height:1.4;text-decoration:none;cursor:pointer}button:hover,.button-link:hover{background:var(--hover)}button:disabled{opacity:.6;cursor:not-allowed}button svg,.button-link svg{width:20px;height:20px;flex-shrink:0}button:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
.header{background:var(--hero);color:var(--hero-ink)}.header-inner{max-width:1056px;min-height:80px;margin:auto;padding:16px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;gap:10px;align-items:center;flex-shrink:0;color:inherit;text-decoration:none;font-family:"Avenir Next",Arial,sans-serif;font-size:1.375rem;font-weight:600;letter-spacing:-.035em}.brand img{width:32px;height:32px;display:block}.header-actions,.header nav{display:flex;align-items:center;gap:24px}.header nav a{color:var(--hero-muted);font-size:.875rem;text-decoration:none;min-height:44px;display:flex;align-items:center}.header nav a:hover,.header nav a[aria-current=page]{color:#fff;text-decoration:underline}.theme-toggle{background:transparent;color:#fff;width:44px;min-height:44px;padding:10px;border-color:#ffffff38}.theme-toggle:hover{background:#ffffff18}.header a:focus-visible,.theme-toggle:focus-visible{outline-color:#fff}.sun-icon{display:none}[data-theme=dark] .sun-icon{display:block}[data-theme=dark] .moon-icon{display:none}
.hero{background:var(--hero);color:var(--hero-ink);text-align:center;padding:28px 24px 88px}.hero-inner{max-width:760px;margin:auto}.hero h1{font-size:clamp(1.5rem,7vw,2.25rem);line-height:1.2;font-weight:600;letter-spacing:-.035em;margin:0 0 12px}.hero .intro{font-size:1.0625rem;line-height:1.6;color:var(--hero-muted);margin:0}.converter{max-width:824px;margin:-48px auto 0;padding:0 32px 36px;position:relative}.converter-panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:24px;box-shadow:0 10px 28px #152b5810}.input-label{display:block;font-size:.875rem;font-weight:600;margin-bottom:12px}.input-row{display:flex;align-items:center;gap:8px;padding:6px;border:1px solid var(--border);border-radius:9px}.input-row:focus-within{border-color:var(--accent);outline:2px solid var(--accent);outline-offset:0}.input-field{display:flex;align-items:center;flex:1;min-width:0}.input-field input{font-size:16px;min-width:0;width:100%;height:48px;border:0;outline:none!important;box-shadow:none;padding:12px;background:transparent;color:var(--ink);border-radius:0}.input-field input::placeholder{color:var(--muted)}.clipboard-button{color:var(--ink);background:var(--wash);font-size:.875rem;min-height:44px;padding:10px 12px;flex-shrink:0}.clipboard-button:hover{background:var(--line)}#convert-button{flex-shrink:0}.form-note{font-size:.8125rem;line-height:1.6;color:var(--muted);margin:12px 0 0}.clipboard-message{font-size:.875rem;color:var(--muted);line-height:1.6;margin:12px 0 0}.clipboard-message:empty{display:none}.verification{display:flex;justify-content:center;margin:0}.verification:empty{display:none}.verification.has-content-height,.verification.needs-interaction{margin-top:24px}
.result{margin-top:24px;padding-top:24px;border-top:1px solid var(--line);text-align:center}.result-symbol{display:grid;place-items:center;width:36px;height:36px;margin:0 auto 16px;border:1px solid var(--border);border-radius:50%;color:var(--accent)}.result-symbol svg{width:24px;height:24px}.result-symbol.loading{border:2px solid var(--line);border-top-color:var(--accent);animation:spin .9s linear infinite}.result h2{font-size:1.125rem;font-weight:600;line-height:1.5;margin:0 0 8px;letter-spacing:-.015em;overflow-wrap:anywhere}.result p{font-size:.9375rem;color:var(--muted);line-height:1.6;margin:0 0 24px}.result-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px;max-width:520px;margin:auto}#download-button{grid-column:1/-1}.button-secondary{background:transparent;border-color:var(--border);color:var(--ink)}.button-secondary:hover{background:var(--wash)}#sponsor-button{background:#fff2d4;border-color:#ddc891;color:#4f3a0a}#sponsor-button:hover{background:#f5e5be}[data-theme=dark] #sponsor-button{background:#3b3020;border-color:#78613d;color:#f6dfad}[data-theme=dark] #sponsor-button:hover{background:#4a3b25}#download-button[hidden]~#reset-button{grid-column:1/-1}.support-note{border-top:1px solid var(--line);margin-top:24px;padding-top:20px}.result .support-note p{font-size:.8125rem;line-height:1.6;margin:0}
.reading{max-width:824px;margin:0 auto;padding:0 32px 40px}.reading>section{padding:28px 0;border-top:1px solid var(--line)}.reading>section:first-child{padding-top:0;border-top:0}h2{font-size:1.25rem;font-weight:700;line-height:1.4;letter-spacing:-.02em;margin:0 0 16px}h3{font-size:1rem;font-weight:600;line-height:1.5;margin:0 0 6px}p,li{font-size:1rem;line-height:1.75}.reading p{color:var(--muted);margin:0}.reading p+p{margin-top:12px}.steps{padding:0;margin:0;list-style:none;display:grid;gap:20px}.steps>li{position:relative;padding-left:48px;counter-increment:step}.steps .step-number{position:absolute;left:0;top:2px;display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--wash);border:1px solid var(--line);color:var(--accent);font-weight:600;font-size:.875rem}.reading .help-link{margin-top:16px}.help-link a{font-weight:600}
footer{border-top:1px solid var(--line);background:var(--surface)}.footer-inner{max-width:1056px;margin:auto;padding:24px 32px;display:flex;justify-content:space-between;align-items:center;gap:24px;color:var(--muted);font-size:.8125rem;line-height:1.8}.footer-inner nav{display:flex;gap:20px;flex-wrap:wrap}.footer-inner a{color:inherit;text-decoration:none}.footer-inner a:hover{text-decoration:underline}
.document-page{max-width:824px;min-height:65vh;margin:auto;padding:40px 32px 56px}.back-link{display:inline-block;font-size:.875rem;margin-bottom:24px}.document-page h1{font-size:clamp(1.75rem,4vw,2.125rem);font-weight:700;line-height:1.25;letter-spacing:-.025em;margin:0 0 16px}.page-intro{font-size:1.0625rem;color:var(--muted);line-height:1.65;margin:0 0 16px}.document-page .updated{font-size:.8125rem;margin:0;color:var(--muted)}.document-page section{margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}.document-page section h2{font-size:1.125rem;margin:0 0 12px}.document-page p,.document-page li{color:var(--muted)}.document-page section p{margin:0}.document-page p+p{margin-top:12px}.document-page ul{padding-left:24px;margin:12px 0}.document-page li+li{margin-top:10px}.contact-address{overflow-wrap:anywhere}.contact-address a{font-weight:600}.document-page .contact-box{padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:12px}.faq-item h2{font-weight:600}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.skip-link{position:absolute;top:-100px;left:16px;background:var(--surface);padding:12px 20px;z-index:10}.skip-link:focus{top:10px}.notice{color:var(--muted);font-size:.875rem;line-height:1.7}.preview-note{background:#fff2d4;color:#574b28;padding:8px 16px;text-align:center;font-size:.75rem;line-height:1.5}@keyframes spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}.result-symbol.loading{animation:none}}
@media(max-width:700px){.header-inner{min-height:72px;padding:12px 20px;gap:12px}.brand{font-size:1.25rem;gap:8px}.brand img{width:28px;height:28px}.header-actions,.header nav{gap:16px}.header nav a:first-child{display:none}.hero{padding:24px 20px 76px}.hero .intro{font-size:1rem}.converter{padding:0 20px 28px;margin-top:-40px}.converter-panel{padding:20px}.input-row{flex-wrap:wrap}.input-field{flex-basis:100%}#convert-button{width:100%}.reading{padding:0 20px 28px}.reading>section{padding:24px 0}.result-actions{gap:10px}.result-actions button,.result-actions .button-link{font-size:.875rem;padding:12px 8px;gap:6px}.result-actions svg{width:18px;height:18px}#download-button{font-size:1rem}.footer-inner{padding:24px 20px;flex-direction:column;align-items:center;text-align:center;gap:12px}.footer-inner nav{justify-content:center;gap:12px 20px}.document-page{padding:28px 20px 40px}.document-page .contact-box{padding:20px}}
@media(max-width:380px){.header nav{gap:12px}.header-actions{gap:8px}.converter-panel{padding:16px}.hero .intro{font-size:.9375rem}.input-field input{padding:8px}.steps>li{padding-left:42px}}

@media(max-width:480px){.result-actions{grid-template-columns:1fr}.result-actions button,.result-actions .button-link{font-size:.9375rem}#download-button{font-size:1rem}}