:root{color-scheme:light;--bg:#f6f8f8;--surface:#fff;--surface-2:#eef2f1;--text:#16201e;--muted:#60706c;--line:#d7dfdd;--accent:#087f6d;--accent-strong:#056657;--accent-soft:#dff3ee;--danger:#b33a3a;--shadow:0 12px 36px rgba(17,39,34,.08);--radius:12px;--max:1120px}
@media(prefers-color-scheme:dark){:root{color-scheme:dark;--bg:#0e1413;--surface:#151d1b;--surface-2:#1d2825;--text:#edf5f2;--muted:#9baba6;--line:#2d3a37;--accent:#50c9b2;--accent-strong:#73dac6;--accent-soft:#173b34;--danger:#ff8d8d;--shadow:0 14px 42px rgba(0,0,0,.28)}}
:root[data-theme="light"]{color-scheme:light;--bg:#f6f8f8;--surface:#fff;--surface-2:#eef2f1;--text:#16201e;--muted:#60706c;--line:#d7dfdd;--accent:#087f6d;--accent-strong:#056657;--accent-soft:#dff3ee;--danger:#b33a3a;--shadow:0 12px 36px rgba(17,39,34,.08)}
:root[data-theme="dark"]{color-scheme:dark;--bg:#0e1413;--surface:#151d1b;--surface-2:#1d2825;--text:#edf5f2;--muted:#9baba6;--line:#2d3a37;--accent:#50c9b2;--accent-strong:#73dac6;--accent-soft:#173b34;--danger:#ff8d8d;--shadow:0 14px 42px rgba(0,0,0,.28)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background-color:var(--bg);background-image:linear-gradient(rgba(8,127,109,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(8,127,109,.035) 1px,transparent 1px);background-size:32px 32px;color:var(--text);font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:16px;line-height:1.65}button,input,textarea{font:inherit}button,a{touch-action:manipulation}a{color:var(--accent-strong);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{text-decoration-thickness:2px}.skip{position:absolute;left:-999px;top:8px}.skip:focus{left:8px;z-index:20;background:var(--surface);padding:8px 12px;border-radius:8px}.shell{width:min(calc(100% - 32px),var(--max));margin-inline:auto}.site-header{height:64px;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(12px);position:relative;z-index:5}.header-inner{height:100%;display:flex;align-items:center;gap:16px}.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:760;text-decoration:none;white-space:nowrap}.brand-mark{width:28px;height:28px;border:1px solid var(--accent);border-radius:8px;display:grid;place-items:center;color:var(--accent);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px}.nav{display:flex;align-items:center;gap:18px;margin-left:auto}.nav a{color:var(--muted);font-size:14px;text-decoration:none}.nav a:hover{color:var(--text)}.languages{display:flex;gap:4px;padding:3px;border:1px solid var(--line);border-radius:9px}.languages a{min-width:34px;text-align:center;padding:5px 7px;border-radius:6px;font-size:12px;font-weight:700}.languages a[aria-current="page"]{background:var(--accent-soft);color:var(--accent-strong)}.icon-button{width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--text);display:grid;place-items:center;cursor:pointer}.icon-button:hover{border-color:var(--accent)}.hero{padding:32px 0 24px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);gap:24px;align-items:stretch}.eyebrow{margin:0 0 6px;color:var(--accent-strong);font:700 12px/1.4 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.08em;text-transform:uppercase}.hero h1{font-size:clamp(32px,5vw,44px);line-height:1.08;letter-spacing:-.035em;margin:0 0 12px;max-width:18ch}.lede{font-size:17px;line-height:1.55;color:var(--muted);margin:0;max-width:62ch}.primary-tool{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;display:flex;flex-direction:column;justify-content:center}.primary-tool label{font-size:13px;font-weight:700;color:var(--muted)}.character-display{height:68px;border:1px dashed var(--accent);border-radius:10px;background:var(--accent-soft);display:grid;place-items:center;margin:8px 0 12px;font:600 28px ui-monospace,SFMono-Regular,Consolas,monospace;user-select:all}.button{min-height:48px;border:1px solid #087f6d;border-radius:10px;padding:10px 16px;background:#087f6d;color:#fff;font-weight:750;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;transition:background .12s,border-color .12s,transform .12s}.button:hover{background:#056657;border-color:#056657;text-decoration:none}.button:active{transform:translateY(1px)}.button.secondary{background:var(--surface);color:var(--text);border-color:var(--line)}.button.secondary:hover{border-color:var(--accent);color:var(--accent-strong)}.button.is-copied{background:#056657;border-color:#056657}.tool-note{margin:8px 0 0;color:var(--muted);font-size:12px}.section{padding:32px 0}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}.section h2{font-size:clamp(24px,4vw,32px);line-height:1.2;letter-spacing:-.025em;margin:0}.section-intro{color:var(--muted);margin:5px 0 0;max-width:70ch}.char-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.char-card{display:grid;grid-template-columns:64px minmax(0,1fr) auto;gap:12px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:12px;transition:border-color .12s,transform .12s}.char-card:hover{border-color:color-mix(in srgb,var(--accent) 55%,var(--line));transform:translateY(-1px)}.char-preview{width:64px;height:56px;border:1px dashed var(--muted);border-radius:8px;background:var(--surface-2);display:grid;place-items:center;font:600 20px ui-monospace,SFMono-Regular,Consolas,monospace;user-select:all}.char-meta{min-width:0}.char-name{display:block;font-weight:750;line-height:1.3}.codepoint{display:inline-block;margin-top:3px;color:var(--accent-strong);font:700 12px/1.4 ui-monospace,SFMono-Regular,Consolas,monospace}.use{display:block;color:var(--muted);font-size:12px;line-height:1.4;margin-top:2px}.copy-small{min-width:82px;min-height:44px;border:1px solid var(--line);border-radius:9px;background:var(--surface);color:var(--text);font-weight:700;cursor:pointer}.copy-small:hover{border-color:var(--accent);color:var(--accent-strong)}.copy-small.is-copied{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-strong)}.ad-wrap{min-height:96px;margin-top:24px;padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);text-align:center}.ad-label{display:block;color:var(--muted);font:600 10px ui-monospace,SFMono-Regular,Consolas,monospace;text-transform:uppercase;letter-spacing:.08em}.workbench{display:grid;grid-template-columns:1fr 1fr;gap:16px}.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px}.panel h2,.panel h3{font-size:20px;margin:0 0 6px}.panel p{color:var(--muted);margin:0 0 16px}.control-row{display:grid;grid-template-columns:1fr 88px;gap:12px;align-items:center}.control-row input[type="range"]{accent-color:var(--accent);min-height:44px}.number-input{width:100%;height:44px;border:1px solid var(--line);border-radius:9px;background:var(--bg);color:var(--text);padding:8px 10px}.generated-preview{height:64px;margin:12px 0;border:1px dashed var(--line);border-radius:9px;background:var(--surface-2);overflow:auto;padding:10px;user-select:all}.test-area{width:100%;min-height:120px;resize:vertical;border:1px solid var(--line);border-radius:9px;background:var(--bg);color:var(--text);padding:12px;outline:none}.test-area:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.counter{display:flex;justify-content:space-between;color:var(--muted);font-size:13px;margin-top:6px}.counter output{color:var(--accent-strong);font-weight:800}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:40px;align-items:start}.article{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(20px,4vw,40px)}.article h2{margin:40px 0 12px;font-size:26px}.article h2:first-child{margin-top:0}.article h3{margin:24px 0 8px;font-size:19px}.article p{margin:0 0 16px}.article ul,.article ol{padding-left:22px}.article li{margin-bottom:9px}.checklist{list-style:none;padding:0!important}.checklist li{position:relative;padding-left:28px}.checklist li::before{content:"";position:absolute;left:2px;top:.55em;width:12px;height:7px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}.aside{position:sticky;top:24px}.aside-card{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:18px;margin-bottom:12px}.aside-card h2,.aside-card h3{font-size:15px;margin:0 0 8px}.aside-card a{display:block;padding:7px 0;color:var(--muted);font-size:14px;text-decoration:none}.aside-card a:hover{color:var(--accent-strong)}.status-list{list-style:none;padding:0;margin:0}.status-list li{padding:7px 0;border-bottom:1px solid var(--line);font-size:13px}.status-list li:last-child{border:0}.status{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent);margin-right:8px}.faq{max-width:860px;margin-inline:auto}.faq details{background:var(--surface);border:1px solid var(--line);border-radius:10px;margin-bottom:10px;padding:0 18px}.faq summary{min-height:56px;display:flex;align-items:center;font-weight:750;cursor:pointer}.faq summary::marker{color:var(--accent)}.faq details p{color:var(--muted);margin:0 0 18px}.site-footer{border-top:1px solid var(--line);padding:28px 0 40px;margin-top:24px;color:var(--muted)}.footer-grid{display:flex;justify-content:space-between;gap:24px;align-items:flex-start}.footer-links{display:flex;gap:16px;flex-wrap:wrap}.footer-links a{color:var(--muted);font-size:13px}.toast{position:fixed;left:50%;bottom:24px;z-index:50;transform:translate(-50%,16px);background:var(--text);color:var(--bg);padding:9px 14px;border-radius:8px;font-size:13px;font-weight:750;opacity:0;pointer-events:none}.toast.show{animation:toast-in 1.8s ease both}@keyframes toast-in{0%{opacity:0;transform:translate(-50%,12px)}8%,82%{opacity:1;transform:translate(-50%,0)}100%{opacity:0;transform:translate(-50%,-4px)}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:820px){.nav>a{display:none}.hero-grid,.workbench,.content-layout{grid-template-columns:1fr}.hero{padding-top:24px}.aside{position:static;display:grid;grid-template-columns:1fr 1fr;gap:12px}.char-grid{grid-template-columns:1fr}}
@media(max-width:520px){.shell{width:min(calc(100% - 24px),var(--max))}.site-header{height:56px}.brand span:last-child{display:none}.nav{gap:8px}.hero{padding:20px 0 16px}.hero-grid{gap:16px}.hero h1{font-size:32px}.lede{font-size:15px}.primary-tool{padding:14px}.character-display{height:52px;margin:6px 0 10px}.section{padding:24px 0}.section-heading{display:block}.char-card{grid-template-columns:52px minmax(0,1fr) 72px;gap:9px;padding:10px}.char-preview{width:52px;height:52px}.copy-small{min-width:72px;padding:6px;font-size:13px}.workbench{gap:12px}.panel{padding:16px}.article{padding:20px}.article h2{font-size:23px}.aside{grid-template-columns:1fr}.footer-grid{display:block}.footer-links{margin-top:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}