:root{--bg:#f5f6f8;--surface:#fff;--sunk:#f1f3f8;--ink:#0b1220;--muted:#586377;--line:#e2e6ee;--accent:#3a56d4;--accent-h:#2e46b0;--on-accent:#fff;--hl:#ffe58a;--ring:rgba(58,86,212,.3);--ok:#16a34a;--shadow:0 1px 2px rgba(16,24,40,.06),0 16px 40px -16px rgba(16,24,40,.16);--pop:0 12px 32px -6px rgba(16,24,40,.22),0 0 0 1px rgba(16,24,40,.05);--ui:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;--serif:Fraunces,Georgia,"Times New Roman",serif;color-scheme:light}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0a0f1a;--surface:#111827;--sunk:#0d1422;--ink:#eef2fa;--muted:#94a0b8;--line:#232d42;--accent:#8196ff;--accent-h:#9fb0ff;--on-accent:#0a1030;--hl:#5b4a14;--ring:rgba(129,150,255,.38);--shadow:0 1px 2px rgba(0,0,0,.4),0 16px 40px -16px rgba(0,0,0,.6);--pop:0 12px 32px -6px rgba(0,0,0,.6),0 0 0 1px rgba(255,255,255,.06);color-scheme:dark}}
:root[data-theme="dark"]{--bg:#0a0f1a;--surface:#111827;--sunk:#0d1422;--ink:#eef2fa;--muted:#94a0b8;--line:#232d42;--accent:#8196ff;--accent-h:#9fb0ff;--on-accent:#0a1030;--hl:#5b4a14;--ring:rgba(129,150,255,.38);--shadow:0 1px 2px rgba(0,0,0,.4),0 16px 40px -16px rgba(0,0,0,.6);--pop:0 12px 32px -6px rgba(0,0,0,.6),0 0 0 1px rgba(255,255,255,.06);color-scheme:dark}
:root{box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
html{scroll-padding-top:env(safe-area-inset-top,0px);scroll-behavior:smooth}
*,*::before,*::after{box-sizing:inherit}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.6 var(--ui);-webkit-font-smoothing:antialiased}
body.fsOn{overflow:hidden}
a{color:inherit}button{font-family:inherit}
.ic{width:18px;height:18px;flex:none;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.wrap{max-width:960px;margin:0 auto;padding:0 1.25rem}
.top{display:flex;align-items:center;gap:1.5rem;padding:1rem 0}
.brand{display:flex;align-items:center;gap:.6rem;font:600 1.4rem/1 var(--serif);text-decoration:none}
.logo{width:32px;height:32px;color:var(--accent)}
nav{display:flex;gap:.25rem;margin-left:auto}
nav a{text-decoration:none;color:var(--muted);font-weight:500;font-size:.92rem;padding:.45rem .8rem;border-radius:8px}nav a:hover{background:var(--sunk);color:var(--ink)}
.icon-btn{width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);cursor:pointer}.icon-btn:hover{border-color:var(--accent);color:var(--accent)}
.hero{padding:2.8rem 0 2rem}
h1{font:400 clamp(2.5rem,7vw,4.2rem)/1.03 var(--serif);letter-spacing:-.025em;margin:0 0 1rem;max-width:15ch}
h1 em{color:var(--accent)}
.hero p{max-width:58ch;color:var(--muted);font-size:1.1rem;margin:0}
h2{font:400 clamp(1.7rem,4vw,2.2rem)/1.1 var(--serif);letter-spacing:-.015em;margin:0 0 1.2rem}h2 em{color:var(--accent)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
.card-h{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem 1rem;padding:.9rem 1.25rem;border-bottom:1px solid var(--line)}
.ttl{display:flex;align-items:center;gap:.7rem;margin-right:auto}.ttl b{font:600 1.05rem var(--ui)}
.pill{display:inline-flex;align-items:center;gap:.45rem;font-size:.8rem;font-weight:500;color:var(--muted);background:var(--sunk);border:1px solid var(--line);border-radius:999px;padding:.2rem .7rem}
.pill i{width:7px;height:7px;border-radius:50%;background:var(--muted)}
.pill[data-state=playing] i{background:var(--ok)}.pill[data-state=paused] i{background:#d97706}
.tools{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem}
.tb{display:inline-flex;align-items:center;gap:.45rem;font:500 .86rem var(--ui);color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:9px;padding:.45rem .8rem;cursor:pointer;height:36px}
.tb:hover{border-color:var(--accent);color:var(--accent)}
.sw{display:inline-flex;align-items:center;gap:.55rem;font:500 .86rem var(--ui);color:var(--ink);background:none;border:0;padding:.3rem .2rem;cursor:pointer;height:36px}
.sw::before{content:"";width:34px;height:20px;border-radius:99px;background:var(--line);transition:background .15s;background-image:radial-gradient(circle at 10px 10px,#fff 8px,transparent 8.5px);background-repeat:no-repeat;background-size:20px 20px;background-position:0 0;flex:none}
.sw[aria-checked=true]::before{background-color:var(--accent);background-position:14px 0}
#wc{font-size:.84rem;color:var(--muted);font-variant-numeric:tabular-nums;min-width:4.5rem;text-align:right}
.box{padding:1.25rem 1.25rem .25rem;position:relative}
#text,#reader{display:block;width:100%;height:280px;margin:0;padding:1.1rem 1.25rem;border:1px solid var(--line);border-radius:12px;background:var(--sunk);color:var(--ink);font:400 1.15rem/1.8 var(--serif);white-space:pre-wrap;overflow-wrap:anywhere;overflow:auto;resize:vertical;position:relative}
#reader{cursor:pointer;resize:none}#reader span{border-radius:3px}#reader span:hover{background:var(--ring)}#reader span.hl{background:var(--hl);color:var(--ink)}
#text:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px var(--ring)}
body.dys #text,body.dys #reader{font-family:"Atkinson Hyperlegible",Verdana,sans-serif;letter-spacing:.04em;word-spacing:.12em;line-height:2}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.panel{margin:1.1rem 1.25rem 0;padding:1.1rem;background:var(--sunk);border:1px solid var(--line);border-radius:12px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem 1.25rem}
label,.lbl{display:flex;justify-content:space-between;font-size:.82rem;font-weight:600;margin-bottom:.4rem}label output{color:var(--muted);font-weight:500;font-variant-numeric:tabular-nums}
.hint{margin:.9rem 0 0;font-size:.84rem;color:var(--muted)}
#keyRow{margin-top:.9rem}#ckey{width:100%;height:40px;padding:0 .8rem;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);font:400 .92rem var(--ui)}
.seg{display:inline-flex;padding:3px;margin-bottom:1.1rem;background:var(--surface);border:1px solid var(--line);border-radius:11px}
.seg button{border:0;background:none;color:var(--muted);font:500 .86rem var(--ui);padding:.45rem .95rem;border-radius:8px;cursor:pointer}
.seg button[aria-checked=true]{background:var(--accent);color:var(--on-accent)}
.sel-btn:disabled{opacity:.6;cursor:default}
.sel{position:relative}
.sel-btn{width:100%;height:44px;display:flex;align-items:center;justify-content:space-between;gap:.6rem;padding:0 .9rem;font:500 .95rem var(--ui);color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:10px;cursor:pointer;text-align:left}
.sel-btn:hover:not(:disabled){border-color:var(--accent)}.sel-btn[aria-expanded=true]{border-color:var(--accent);box-shadow:0 0 0 4px var(--ring)}
.sel-btn .ic{color:var(--muted);transition:transform .15s}.sel-btn[aria-expanded=true] .ic{transform:rotate(180deg)}
.sel-val{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sel-pop{position:absolute;z-index:30;left:0;right:0;top:calc(100% + 6px);background:var(--surface);border-radius:12px;box-shadow:var(--pop);padding:.4rem}
.sel-pop.up{top:auto;bottom:calc(100% + 6px)}
.sel-s{display:flex;align-items:center;gap:.5rem;padding:0 .6rem;border:1px solid var(--line);border-radius:8px;background:var(--sunk);color:var(--muted)}
.sel-q{flex:1;min-width:0;height:36px;border:0;background:transparent;color:var(--ink);font:400 .92rem var(--ui);outline:none}
.sel-pop ul{list-style:none;margin:.4rem 0 0;padding:0;max-height:240px;overflow:auto;position:relative}
.sel-pop li{display:flex;align-items:center;justify-content:space-between;gap:.6rem;padding:.55rem .65rem;border-radius:8px;cursor:pointer;font-size:.92rem}
.sel-pop li.hi{background:var(--sunk)}.sel-pop li[aria-selected=true]{color:var(--accent);font-weight:600}
.sel-pop li em{font:500 .72rem var(--ui);color:var(--muted);background:var(--sunk);border:1px solid var(--line);border-radius:99px;padding:.05rem .5rem}
.sel-pop li.none{color:var(--muted);cursor:default}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:24px;background:transparent;margin:0;cursor:pointer}
input[type=range]::-webkit-slider-runnable-track{height:6px;border-radius:99px;background:linear-gradient(to right,var(--accent) var(--p,50%),var(--line) var(--p,50%))}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;margin-top:-7px;border-radius:50%;background:#fff;border:2px solid var(--accent);box-shadow:0 1px 4px rgba(0,0,0,.25)}
input[type=range]::-moz-range-track{height:6px;border-radius:99px;background:var(--line)}
input[type=range]::-moz-range-progress{height:6px;border-radius:99px;background:var(--accent)}
input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:#fff;border:2px solid var(--accent)}
.player{padding:1.1rem 1.25rem 1.25rem}
.btns{display:flex;flex-wrap:wrap;align-items:center;gap:.6rem;margin-bottom:1rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;height:44px;padding:0 1.2rem;font:600 .95rem var(--ui);border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}
.btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}
.btn.go{background:var(--accent);border-color:var(--accent);color:var(--on-accent);min-width:8.5rem;box-shadow:0 6px 16px -6px var(--ring)}
.btn.go:hover:not(:disabled){background:var(--accent-h);color:var(--on-accent)}
.btn:disabled{opacity:.45;cursor:default}.btn .ic{width:16px;height:16px}
.btns .sw{margin-left:auto}
#prog{height:8px;border-radius:99px;background:var(--line);cursor:pointer;overflow:hidden}#prog:hover{height:8px;box-shadow:0 0 0 4px var(--ring)}
#fill{display:block;height:100%;width:0;background:var(--accent);border-radius:99px}
.meta{display:flex;flex-wrap:wrap;gap:.3rem 1.2rem;color:var(--muted);font-size:.85rem;margin-top:.7rem;font-variant-numeric:tabular-nums}.meta b{color:var(--ink);font-weight:600}
.keys{margin:.8rem 0 0;color:var(--muted);font-size:.82rem}
kbd{font:500 .76rem var(--ui);background:var(--sunk);border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:.05rem .4rem;color:var(--ink)}
.sec{padding:3.5rem 0 0}
.feat{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem}
.feat .card{padding:1.3rem;box-shadow:none}.feat h3{font:600 1.05rem var(--ui);margin:.9rem 0 .35rem}.feat p{margin:0;color:var(--muted);font-size:.93rem}
.fi{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;background:var(--sunk);color:var(--accent);border:1px solid var(--line)}
.faq{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:0 1.2rem}
details{border-bottom:1px solid var(--line)}details:last-child{border:0}
summary{cursor:pointer;font-weight:600;padding:1rem 0;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem}summary::-webkit-details-marker{display:none}
summary .ic{color:var(--muted);transition:transform .15s}details[open] summary .ic{transform:rotate(180deg)}
details p{margin:0 0 1rem;color:var(--muted);max-width:66ch}
footer{margin-top:4rem;border-top:1px solid var(--line);padding:1.5rem 0 2.2rem;display:flex;flex-wrap:wrap;justify-content:space-between;gap:.6rem;color:var(--muted);font-size:.86rem}
#app.fs{position:fixed;inset:0;z-index:50;border-radius:0;border:0;overflow:auto;display:flex;flex-direction:column;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
#app.fs .box{flex:1;min-height:42vh;display:flex;flex-direction:column}
#app.fs #text,#app.fs #reader{flex:1;height:auto;font-size:clamp(1.5rem,3vw,2.2rem);resize:none}
@media (max-width:640px){.grid{grid-template-columns:1fr}nav{display:none}.top{justify-content:space-between}.btns .sw{margin-left:0}.hero{padding-top:1.6rem}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}