/* MusicSystem · инструменты · общий стиль
   Системные шрифты: ноль сетевых запросов, мгновенный первый рендер (важно для Core Web Vitals) */

:root{
  --bg:#F5F4EF;
  --card:#FFFFFF;
  --ink:#16191C;
  --panel:#22272C;
  --panel-2:#2E353C;
  --muted:#6A7076;
  --line:#E3E1D9;
  --amber:#E8A020;
  --oxide:#B4402F;
  --patch:#2E8B82;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"DejaVu Sans Mono",monospace;
  --wrap:940px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:17px;line-height:1.65;
  -webkit-text-size-adjust:100%;
}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}

h1,h2,h3{line-height:1.18;margin:0;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(27px,4.4vw,40px);margin:0 0 12px}
h2{font-size:clamp(21px,2.8vw,27px);margin:38px 0 12px}
h3{font-size:18px;margin:22px 0 8px}
p{margin:0 0 14px}
a{color:#1F5F86}
a:hover{color:var(--oxide)}
ul,ol{margin:0 0 14px;padding-left:22px}
li{margin-bottom:6px}
code{font-family:var(--mono);font-size:.92em;background:#EDEBE3;padding:1px 5px;border-radius:3px}

/* ── шапка ─────────────────────────────── */
.top{background:var(--panel);color:#E7E9E5}
.top__in{display:flex;align-items:center;gap:20px;flex-wrap:wrap;padding:12px 20px;max-width:var(--wrap);margin:0 auto}
.logo{font-weight:700;letter-spacing:.16em;font-size:14px;text-transform:uppercase;color:#E7E9E5;text-decoration:none}
.logo b{color:var(--amber)}
.top nav{display:flex;gap:16px;flex-wrap:wrap;font-size:14px}
.top nav a{color:#A9B0B6;text-decoration:none}
.top nav a:hover,.top nav a:focus-visible{color:var(--amber)}

/* ── хлебные крошки ────────────────────── */
.crumbs{font-size:13px;color:var(--muted);padding:14px 0 0}
.crumbs a{color:var(--muted)}
.crumbs span{margin:0 6px;opacity:.6}

main{padding:10px 0 50px}
.intro{font-size:19px;color:#3A4046;max-width:62ch}
.meta{font-family:var(--mono);font-size:12px;color:var(--muted);margin:0 0 26px}

/* ── блок инструмента ──────────────────── */
.tool{
  background:var(--card);border:1px solid var(--line);border-radius:6px;
  padding:22px;margin:22px 0 8px;
}
.drop{
  border:2px dashed #C9C6BC;border-radius:5px;background:#FAF9F5;
  padding:34px 20px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s;
}
.drop:hover,.drop.over{border-color:var(--amber);background:#FDF7EA}
.drop b{display:block;font-size:18px;margin-bottom:6px}
.drop small{color:var(--muted);font-size:14px}
.drop input{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden}

.btn{
  display:inline-block;background:var(--panel);color:#fff;border:0;border-radius:4px;
  padding:11px 20px;font-size:15px;font-family:inherit;cursor:pointer;text-decoration:none;
}
.btn:hover{background:#333B42;color:#fff}
.btn--amber{background:var(--amber);color:#231703}
.btn--amber:hover{background:#D19017;color:#231703}

.fields{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
label{display:block;font-size:13px;color:var(--muted);margin-bottom:5px}
input[type=text],input[type=number],select{
  width:100%;padding:10px 12px;font-size:16px;font-family:inherit;
  border:1px solid #CFCCC2;border-radius:4px;background:#fff;color:var(--ink);
}
input:focus,select:focus{outline:2px solid var(--amber);outline-offset:1px;border-color:var(--amber)}

.status{font-size:14px;color:var(--muted);margin-top:14px;min-height:22px}
.hidden{display:none}

/* результаты */
.big{display:flex;flex-wrap:wrap;gap:14px;margin:18px 0 0}
.big__cell{
  flex:1 1 150px;background:#F3F1EA;border:1px solid var(--line);border-radius:5px;
  padding:14px 16px;
}
.big__cell b{display:block;font-family:var(--mono);font-size:30px;line-height:1.1;letter-spacing:-.02em}
.big__cell span{display:block;font-size:12.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin-top:4px}
.big__cell--hi{background:#FBF2E0;border-color:#EBD6A8}

.rows{list-style:none;margin:18px 0 0;padding:0}
.rows li{display:flex;gap:12px;align-items:baseline;padding:9px 0;border-bottom:1px solid #EDEBE3;font-size:15px}
.rows li:last-child{border-bottom:0}
.rows .k{flex:1 1 auto;color:#3A4046}
.rows .v{font-family:var(--mono);font-size:14px;flex:0 0 auto;text-align:right}
.tag{
  display:inline-block;font-size:11.5px;font-family:var(--mono);letter-spacing:.06em;
  padding:2px 7px;border-radius:3px;text-transform:uppercase;flex:0 0 auto;
}
.tag--ok{background:#E1F0EC;color:#1D6B63}
.tag--warn{background:#FBF0DA;color:#8A6210}
.tag--bad{background:#F7E4E0;color:#9A3527}

.bars{display:flex;align-items:flex-end;gap:4px;height:90px;margin:18px 0 0}
.bars div{flex:1;background:#D8D5CB;border-radius:2px 2px 0 0;position:relative;min-height:2px}
.bars div.hi{background:var(--amber)}
.bars span{position:absolute;bottom:-19px;left:0;right:0;text-align:center;font-size:10.5px;color:var(--muted);font-family:var(--mono)}
.barsWrap{padding-bottom:22px}

.previews{display:flex;align-items:flex-end;gap:22px;flex-wrap:wrap;margin-top:18px}
.previews figure{margin:0;text-align:center}
.previews img{display:block;border:1px solid var(--line);border-radius:3px;background:#fff}
.previews figcaption{font-size:11.5px;color:var(--muted);font-family:var(--mono);margin-top:6px}

table{border-collapse:collapse;width:100%;font-size:15px;margin:16px 0}
th,td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--line)}
th{font-size:12.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:600;background:#EFEDE6}
td.num,th.num{text-align:right;font-family:var(--mono)}
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:5px;background:var(--card)}

/* ── текстовые блоки ───────────────────── */
.content{max-width:70ch}
.note{
  border-left:3px solid var(--amber);background:#FAF3E4;padding:14px 18px;
  border-radius:0 4px 4px 0;font-size:15.5px;margin:20px 0;
}
.note--priv{border-left-color:var(--patch);background:#E9F3F1}

details{border-bottom:1px solid var(--line);padding:12px 0}
details summary{cursor:pointer;font-weight:600;font-size:16.5px;list-style:none}
details summary::-webkit-details-marker{display:none}
details summary::before{content:"+";color:var(--amber);font-weight:700;margin-right:10px}
details[open] summary::before{content:"–"}
details p{margin:10px 0 0;color:#3A4046;font-size:15.5px}

.related{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));margin-top:16px}
.related a{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:5px;
  padding:14px 16px;text-decoration:none;color:var(--ink);
}
.related a:hover{border-color:var(--amber);color:var(--ink)}
.related b{display:block;font-size:15.5px;margin-bottom:3px}
.related span{font-size:13.5px;color:var(--muted)}

footer{background:var(--panel);color:#8D959B;padding:26px 0;font-size:13.5px;margin-top:40px}
footer a{color:#B7BDC2}

:focus-visible{outline:2px solid var(--amber);outline-offset:2px}

@media (max-width:600px){
  body{font-size:16px}
  .tool{padding:16px}
  .big__cell b{font-size:25px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* ── дополнения для инструментов второй волны ───────────────── */
.two{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.slot{border:2px dashed #C9C6BC;border-radius:5px;background:#FAF9F5;padding:20px 16px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s}
.slot:hover,.slot.over{border-color:var(--amber);background:#FDF7EA}
.slot.filled{border-style:solid;border-color:var(--patch);background:#F0F7F5}
.slot b{display:block;font-size:16px;margin-bottom:4px}
.slot small{color:var(--muted);font-size:13.5px;display:block;word-break:break-word}
.slot input{position:absolute;width:1px;height:1px;opacity:0}

canvas.viz{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:5px;background:#20262B;cursor:crosshair}
.canvasNote{font-size:13px;color:var(--muted);margin-top:8px}

.ctrls{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:16px 0 0}
.ctrls .btn{padding:9px 16px;font-size:14.5px}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.btn--ghost{background:transparent;color:var(--ink);border:1px solid #CFCCC2}
.btn--ghost:hover{background:#EDEBE3;color:var(--ink)}
.btn--rec{background:var(--oxide)}
.btn--rec:hover{background:#95321F}

input[type=range]{width:100%;accent-color:var(--amber)}
.rangeRow{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;margin-bottom:10px}
.rangeRow output{font-family:var(--mono);font-size:13.5px;color:var(--muted);min-width:74px;text-align:right}

.diff{list-style:none;margin:16px 0 0;padding:0}
.diff li{display:grid;grid-template-columns:92px 1fr 68px;gap:10px;align-items:center;padding:5px 0;font-size:14px}
.diff .band{color:#3A4046;font-family:var(--mono);font-size:12px}
.diff .track{position:relative;height:16px;background:#EDEBE3;border-radius:2px;overflow:hidden}
.diff .track::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:#C4C1B7}
.diff .track i{position:absolute;top:2px;bottom:2px;border-radius:2px;background:var(--amber)}
.diff .track i.neg{background:#7FA9C4}
.diff .val{font-family:var(--mono);font-size:13px;text-align:right}

.segs{list-style:none;margin:16px 0 0;padding:0}
.segs li{display:grid;grid-template-columns:104px 1fr auto;gap:12px;align-items:center;padding:9px 0;border-bottom:1px solid #EDEBE3;font-size:14.5px}
.segs li:last-child{border-bottom:0}
.segs .tc{font-family:var(--mono);font-size:13px;color:var(--muted)}
.segs .lvl{height:8px;background:#EDEBE3;border-radius:2px;overflow:hidden}
.segs .lvl i{display:block;height:100%;background:var(--amber)}

.chips{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 0}
.chips button{font-family:var(--mono);font-size:12.5px;padding:6px 12px;border:1px solid #CFCCC2;border-radius:3px;background:#fff;cursor:pointer;color:var(--ink)}
.chips button:hover{border-color:var(--amber)}
.chips button[aria-pressed=true]{background:var(--panel);color:#fff;border-color:var(--panel)}

.tapPad{border:2px solid #CFCCC2;border-radius:6px;background:#FAF9F5;padding:40px 20px;text-align:center;cursor:pointer;user-select:none;font-size:19px;font-weight:600}
.tapPad:active{background:#FBF0DA;border-color:var(--amber)}

/* ── компоненты новых инструментов ─────── */
.two{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.two .drop{padding:22px 14px}
.two .drop b{font-size:15.5px}
.slot{position:relative}
.slot__badge{
  position:absolute;top:-9px;left:12px;background:var(--panel);color:#fff;
  font-size:11px;font-family:var(--mono);letter-spacing:.1em;padding:2px 8px;border-radius:3px;
}
.slot--b .slot__badge{background:var(--amber);color:#231703}
.drop.loaded{border-style:solid;border-color:var(--patch);background:#F0F7F5}

.transport{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:18px 0 0}
.ab{display:flex;gap:0;border-radius:5px;overflow:hidden;border:1px solid var(--panel)}
.ab button{
  border:0;background:#fff;color:var(--ink);font-family:var(--mono);font-size:15px;
  padding:12px 26px;cursor:pointer;letter-spacing:.06em;
}
.ab button.on{background:var(--panel);color:#fff}
.ab button.on.b{background:var(--amber);color:#231703}
.range{display:flex;align-items:center;gap:10px;flex:1 1 220px;min-width:180px}
.range input[type=range]{flex:1;accent-color:var(--amber);min-width:120px}
.range span{font-family:var(--mono);font-size:13px;color:var(--muted);white-space:nowrap}
.chk{display:flex;align-items:center;gap:8px;font-size:14.5px;color:#3A4046;cursor:pointer}
.chk input{accent-color:var(--amber);width:17px;height:17px}

.canvasWrap{margin:18px 0 0;border:1px solid var(--line);border-radius:5px;overflow:hidden;background:#fff}
canvas.full{display:block;width:100%;height:auto}

.diff{list-style:none;margin:16px 0 0;padding:0}
.diff li{display:grid;grid-template-columns:150px 1fr 62px;gap:10px;align-items:center;padding:5px 0;font-size:13.5px}
.diff .lbl{color:#3A4046}
.diff .bar{position:relative;height:16px;background:#EDEBE3;border-radius:2px}
.diff .bar::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:#C6C3B9}
.diff .bar i{position:absolute;top:2px;bottom:2px;border-radius:2px;background:var(--amber)}
.diff .bar i.neg{background:var(--patch)}
.diff .val{font-family:var(--mono);font-size:12.5px;text-align:right;color:var(--muted)}

.tl{display:flex;height:44px;border-radius:4px;overflow:hidden;border:1px solid var(--line);margin:16px 0 0}
.tl div{
  display:flex;align-items:center;justify-content:center;font-size:11.5px;font-family:var(--mono);
  color:#fff;overflow:hidden;white-space:nowrap;border-right:1px solid rgba(0,0,0,.18);
}
.tl div:last-child{border-right:0}

.dl{margin:18px 0 0;padding:16px 18px;background:#F0F7F5;border:1px solid #BFDDD7;border-radius:5px}
.dl a{font-weight:600}
.vis{display:grid;gap:18px;grid-template-columns:minmax(180px,240px) 1fr;align-items:start}
.vis canvas{width:100%;height:auto;display:block;border-radius:6px;background:#111;border:1px solid var(--line)}
@media (max-width:640px){.vis{grid-template-columns:1fr}.diff li{grid-template-columns:110px 1fr 54px}}

/* ── обработка и выгрузка ───────────────── */
.opts{display:grid;gap:12px;margin:18px 0 0}
.opt{
  display:grid;grid-template-columns:26px 1fr auto;gap:12px;align-items:center;
  background:#FAF9F5;border:1px solid var(--line);border-radius:5px;padding:11px 14px;
}
.opt input[type=checkbox]{width:19px;height:19px;accent-color:var(--amber)}
.opt .t{font-size:15px}
.opt .t small{display:block;color:var(--muted);font-size:13px;line-height:1.4}
.opt .f{display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.opt select,.opt input[type=number]{padding:7px 9px;font-size:14px;width:auto;min-width:78px}
.opt.off{opacity:.5}

.pick{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));margin:14px 0 0}
.pick button{
  text-align:left;background:#FAF9F5;border:1px solid var(--line);border-radius:5px;
  padding:12px 14px;cursor:pointer;font-family:inherit;font-size:14.5px;color:var(--ink);
}
.pick button:hover{border-color:var(--amber)}
.pick button.on{border-color:var(--amber);background:#FBF2E0;box-shadow:inset 0 0 0 1px var(--amber)}
.pick b{display:block;font-size:15px;margin-bottom:3px}
.pick span{color:var(--muted);font-size:13px}
.pick em{font-style:normal;font-family:var(--mono);font-size:12.5px;color:var(--oxide);display:block;margin-top:4px}

.slices{display:grid;gap:9px;grid-template-columns:repeat(auto-fill,minmax(215px,1fr));margin:16px 0 0}
.sl{
  display:grid;grid-template-columns:26px 1fr 34px;gap:9px;align-items:center;
  background:#FAF9F5;border:1px solid var(--line);border-radius:5px;padding:9px 11px;
}
.sl.on{border-color:var(--patch);background:#F0F7F5}
.sl input[type=checkbox]{width:18px;height:18px;accent-color:var(--patch)}
.sl .nm{font-size:13.5px;line-height:1.3;overflow:hidden}
.sl .nm b{display:block;font-weight:600}
.sl .nm span{color:var(--muted);font-family:var(--mono);font-size:11.5px}
.sl .pl{
  border:1px solid var(--line);background:#fff;border-radius:4px;width:32px;height:32px;
  cursor:pointer;font-size:13px;color:var(--ink);padding:0;
}
.sl .pl:hover{border-color:var(--amber)}
.badge{display:inline-block;font-size:10.5px;font-family:var(--mono);background:#EDEBE3;color:var(--muted);padding:1px 5px;border-radius:3px;margin-left:4px}

.imgs{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));margin:16px 0 0}
.imgs figure{margin:0;text-align:center}
.imgs canvas{width:100%;height:auto;display:block;border:1px solid var(--line);border-radius:4px;background:#fff}
.imgs figcaption{font-size:11.5px;color:var(--muted);font-family:var(--mono);margin-top:6px}

.copyblock{margin:14px 0 0}
.copyblock textarea{
  width:100%;min-height:110px;padding:12px 14px;font-family:inherit;font-size:14.5px;line-height:1.5;
  border:1px solid #CFCCC2;border-radius:5px;background:#fff;color:var(--ink);resize:vertical;
}
.copyblock .bar{display:flex;gap:10px;align-items:center;margin-top:8px;flex-wrap:wrap}
.copyblock .bar span{font-size:13px;color:var(--muted)}
.btn--sm{padding:7px 14px;font-size:13.5px}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.chips button{
  border:1px solid var(--line);background:#fff;border-radius:20px;padding:5px 12px;
  font-size:13px;font-family:inherit;cursor:pointer;color:var(--ink);
}
.chips button.on{background:var(--amber);border-color:var(--amber);color:#231703}
.stack{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:14px}

/* ── главная страница и анонс ───────────── */
.hero{background:linear-gradient(165deg,#22272C 0%,#171B1F 100%);color:#E7E9E5;padding:52px 0 46px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.025) 0 1px,transparent 1px 6px);pointer-events:none}
.hero h1{color:#FFF;font-size:clamp(30px,5.4vw,50px);line-height:1.06;max-width:16ch;margin:0 0 16px}
.hero h1 em{font-style:normal;color:var(--amber)}
.hero p{color:#B7BEC3;font-size:clamp(16.5px,2vw,19px);max-width:56ch}
.hero .stack{margin-top:24px}
.hero .btn{padding:14px 26px;font-size:16px}
.heroGrid{display:grid;gap:30px;grid-template-columns:1.25fr .85fr;align-items:center}
.heroCard{background:#2A3037;border:1px solid #3A424A;border-radius:8px;padding:18px}
.heroCard ul{margin:0;padding-left:18px;color:#B7BEC3;font-size:15px}
.heroCard li{margin-bottom:7px}
.heroCard b{color:#E7E9E5}
@media (max-width:760px){.heroGrid{grid-template-columns:1fr}}

.announce{
  background:#F4EFE2;border:1px solid #E8D9B4;border-left:4px solid var(--amber);
  border-radius:0 6px 6px 0;padding:20px 22px;margin:26px 0;
}
.announce h2,.announce h3{margin:0 0 8px;font-size:20px}
.announce p{font-size:15.5px;margin-bottom:14px;max-width:64ch}
.announce .stack{gap:10px;margin:0}
.announce .btn{text-decoration:none}
.announce small{display:block;margin-top:12px;color:var(--muted);font-size:13.5px}

.pick.collapsed > button:nth-child(n+4){display:none}
.pickmore{
  margin-top:10px;background:none;border:0;color:#1F5F86;font-family:inherit;font-size:14.5px;
  cursor:pointer;padding:6px 2px;
}
.pickmore:hover{color:var(--oxide)}
.pickmore span{display:inline-block;transition:transform .15s}
.pickmore.open span{transform:rotate(180deg)}