:root{
  --bg:#0e1116;
  --bg-2:#151a21;
  --card:#171d25;
  --line:#242c38;
  --line-2:#303a49;
  --fg:#e8edf4;
  --muted:#8d9aab;
  --accent:#4cc2ff;
  --accent-2:#1b8fc7;
  --accent-dim:rgba(76,194,255,.14);
  --wave:#49566a;
  --wave-sel:#4cc2ff;
  --ok:#49d38a;
  --warn:#ffb74d;
  --radius:12px;
  --shadow:0 6px 24px rgba(0,0,0,.35);
}

*{box-sizing:border-box}
[hidden]{display:none!important}   /* иначе display:flex перебивает скрытие */
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--fg);
  font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
body.dragging{background:var(--bg-2)}
body.dragging .dropzone{border-color:var(--accent);background:var(--accent-dim)}

/* ---------- верхняя панель ---------- */
.topbar{
  display:flex;align-items:center;gap:16px;
  padding:14px 20px;border-bottom:1px solid var(--line);
  background:rgba(14,17,22,.9);backdrop-filter:blur(6px);
  position:sticky;top:0;z-index:5;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:650;letter-spacing:.2px}
.brand svg{width:22px;height:22px;fill:var(--accent)}
.meta{margin-left:auto;color:var(--muted);font-size:13px;display:flex;gap:14px;flex-wrap:wrap}
.meta b{color:var(--fg);font-weight:600}
.topbar .btn.ghost{margin-left:auto}
.meta:not([hidden])+.btn.ghost{margin-left:0}

main{max-width:1180px;margin:0 auto;padding:24px 20px 56px}

/* ---------- зона загрузки ---------- */
.dropzone{
  margin-top:6vh;padding:56px 24px;text-align:center;
  border:2px dashed var(--line-2);border-radius:18px;background:var(--bg-2);
  transition:border-color .15s,background .15s;
}
.dz-icon{width:48px;height:48px;fill:var(--accent);opacity:.9}
.dropzone h1{margin:14px 0 6px;font-size:24px;font-weight:650}
.dropzone p{margin:0 auto;max-width:460px;color:var(--muted)}
.dropzone .btn{margin-top:22px}
.hint{color:var(--muted);font-size:12.5px;margin:14px 0 0}
.muted{color:var(--muted)}

/* ---------- карточки ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;box-shadow:var(--shadow);
}
.card h2{margin:0 0 14px;font-size:13px;font-weight:650;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.wavecard{padding:10px 12px 12px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}

/* ---------- волна ---------- */
.ruler{display:block;width:100%;height:22px}
.wave{display:block;width:100%;height:220px;cursor:text;touch-action:none;border-radius:8px;background:#11161d}
.minimap{display:block;width:100%;height:42px;margin-top:8px;border-radius:6px;background:#11161d;cursor:pointer;touch-action:none}
.wavehint{color:var(--muted);font-size:12px;margin:8px 2px 0}

/* ---------- кнопки ---------- */
.btn{
  appearance:none;border:1px solid var(--line-2);background:#1d242e;color:var(--fg);
  padding:8px 13px;border-radius:9px;font:inherit;font-size:14px;cursor:pointer;
  display:inline-flex;align-items:center;gap:7px;transition:background .12s,border-color .12s,transform .06s;
}
.btn:hover{background:#242d39;border-color:#3b4858}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#06222e;font-weight:650}
.btn.primary:hover{background:#6bcdff}
.btn.ghost{background:transparent}
.btn.big{padding:11px 20px;font-size:15px}
.btn.small{padding:6px 10px;font-size:13px}
.btn.full{width:100%;justify-content:center}
.btn.toggle.on{background:var(--accent-dim);border-color:var(--accent);color:var(--accent)}
.ico{font-size:12px}

/* ---------- тулбар ---------- */
.toolbar{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:14px}
.group{display:flex;align-items:center;gap:8px}
.clock{margin-left:auto;font-variant-numeric:tabular-nums;font-size:15px}
.t-cur{color:var(--accent);font-weight:650}
.t-sep,.t-tot{color:var(--muted)}

/* ---------- поля ---------- */
.fields{display:flex;flex-direction:column;gap:11px}
.field{display:flex;align-items:center;gap:12px}
.field>span{width:118px;flex:none;color:var(--muted);font-size:13.5px}
.field input[type=text],.field select{
  flex:1;min-width:0;background:#11161d;border:1px solid var(--line-2);color:var(--fg);
  padding:8px 10px;border-radius:8px;font:inherit;font-variant-numeric:tabular-nums;
}
.field input[type=text]:focus,.field select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-dim)}
.field.check{align-items:flex-start;gap:9px}
.field.check>span{width:auto;flex:1;color:var(--fg);font-size:13.5px}
.field.check input{margin-top:3px;accent-color:var(--accent);width:16px;height:16px}
.durout{flex:1;font-variant-numeric:tabular-nums;color:var(--ok);font-weight:650}
.row{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
code{background:#11161d;border:1px solid var(--line);padding:1px 5px;border-radius:5px;font-size:12px}

/* ---------- прогресс ---------- */
.progress{margin-top:12px;display:flex;align-items:center;gap:10px}
.progress .bar{height:6px;flex:1;background:#11161d;border-radius:99px;overflow:hidden;position:relative}
.progress .bar::after{content:"";position:absolute;inset:0;width:var(--p,0%);background:var(--accent);transition:width .15s}
#progTxt{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums;min-width:120px;text-align:right;white-space:nowrap}

/* ---------- подсказки ---------- */
.shortcuts{margin:20px 2px 0;color:var(--muted);font-size:12.5px;line-height:1.9}
.shortcuts b{color:var(--fg)}
kbd{
  background:#1d242e;border:1px solid var(--line-2);border-bottom-width:2px;border-radius:5px;
  padding:1px 6px;font:inherit;font-size:11.5px;color:var(--fg);
}

/* ---------- оверлей / тост ---------- */
.overlay{
  position:fixed;inset:0;z-index:20;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  background:rgba(14,17,22,.82);backdrop-filter:blur(3px);color:var(--fg);
}
.spinner{width:34px;height:34px;border:3px solid var(--line-2);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.toast{
  position:fixed;left:50%;bottom:28px;transform:translateX(-50%);z-index:30;
  background:#2a1d1d;border:1px solid #6b3a3a;color:#ffd9d9;padding:11px 16px;border-radius:10px;
  box-shadow:var(--shadow);max-width:90vw;
}
.toast.ok{background:#16281f;border-color:#2f6b49;color:#cdf3de}

@media (max-width:760px){
  .grid{grid-template-columns:1fr}
  .clock{margin-left:0;width:100%}
  .wave{height:170px}
  main{padding:16px 14px 40px}
}