:root {
  --bg: #0e1014;
  --panel: #181c26;
  --panel-2: #161a23;
  --ink: #eef1f7;
  --muted: #97a2b6;
  --line: #2a3040;
  --accent: #7c8cff;
  --accent-2: #6675f0;
  --amber: #ffcf6b;
  --green: #7fd1a6;
  --blue: #6b9bff;
  --radius: 14px;
  --shadow: 0 10px 34px rgba(0, 0, 0, .38);
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  color: var(--ink);
  font: 14.5px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background:
    radial-gradient(1100px 560px at 12% -12%, rgba(124, 140, 255, .12), transparent 60%),
    radial-gradient(950px 480px at 102% -6%, rgba(127, 209, 166, .08), transparent 55%),
    var(--bg);
  background-attachment: fixed;
}

/* ── header ── */
header {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 18px 28px; border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(124, 140, 255, .07), transparent);
}
.hdr-text h1 {
  margin: 0; font-size: 21px; letter-spacing: .2px;
  background: linear-gradient(90deg, #ffffff, #c6cfff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hdr-text .sub { margin: 3px 0 0; color: var(--muted); font-size: 13px; }

.gh-star {
  display: inline-flex; align-items: center; gap: 7px; text-decoration: none; color: var(--ink);
  background: #20252f; border: 1px solid var(--line); border-radius: 9px;
  padding: 7px 12px; font-size: 13px; font-weight: 600; white-space: nowrap;
  transition: transform .15s, background .15s, border-color .15s;
}
.gh-star:hover { background: #272d3a; border-color: #3b4250; transform: translateY(-1px); }
.gh-mark { width: 17px; height: 17px; fill: currentColor; }
.gh-count {
  background: #0e131c; border: 1px solid var(--line); border-radius: 6px;
  padding: 1px 8px; font-variant-numeric: tabular-nums;
}
.gh-count:empty { display: none; }

/* ── layout ── */
main { padding: 24px; max-width: 1180px; margin: 0 auto; }
#boot { color: var(--muted); text-align: center; padding: 56px 0; font-size: 15px; }
.err { color: #ff8c8c; }
.muted { color: var(--muted); }

.grid { display: grid; grid-template-columns: 380px 1fr; gap: 20px; align-items: start; }
@media (max-width: 860px) { .grid { grid-template-columns: 1fr; } }

.panel {
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow);
}
.col { display: flex; flex-direction: column; gap: 14px; }
.row { display: flex; gap: 8px; flex-wrap: wrap; }
.row.voicefile { margin-top: 2px; padding-top: 12px; border-top: 1px solid var(--line); }

/* ── controls ── */
button {
  font: inherit; cursor: pointer; border: 0; border-radius: 10px;
  padding: 10px 14px; font-weight: 650; color: #0b0d14;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  transition: transform .12s, filter .12s;
}
button:hover { filter: brightness(1.07); transform: translateY(-1px); }
button:active { transform: translateY(0); }
.row button {
  background: #222836; color: var(--ink); border: 1px solid var(--line);
  padding: 7px 12px; font-size: 12.5px; font-weight: 600;
}
.row button:hover { background: #2a3140; filter: none; }
button.mini {
  background: transparent; color: var(--muted); border: 1px solid var(--line);
  padding: 5px 10px; font-size: 12px; font-weight: 600;
}
button.mini:hover { background: #222836; color: var(--ink); filter: none; transform: none; }

label.fld { display: flex; flex-direction: column; gap: 4px; font-size: 12.5px; }
.fld > span { color: var(--muted); }

input[type=range] {
  -webkit-appearance: none; appearance: none;
  height: 6px; border-radius: 6px; background: #2a3040; outline: none;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent); border: 2px solid #0e1014;
  box-shadow: 0 1px 5px rgba(0, 0, 0, .45); cursor: pointer; transition: background .12s;
}
input[type=range]::-webkit-slider-thumb:hover { background: #97a4ff; }
input[type=range]::-moz-range-thumb {
  width: 16px; height: 16px; border-radius: 50%; background: var(--accent);
  border: 2px solid #0e1014; cursor: pointer;
}

textarea, select {
  width: 100%; background: #0e131c; color: var(--ink);
  border: 1px solid var(--line); border-radius: 10px; padding: 9px 11px; font: inherit;
}
textarea:focus, select:focus {
  border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px rgba(124, 140, 255, .16);
}

.axes { display: flex; flex-direction: column; gap: 11px; max-height: 300px; overflow-y: auto; padding-right: 6px; }
.axes::-webkit-scrollbar { width: 8px; }
.axes::-webkit-scrollbar-thumb { background: #2a3040; border-radius: 8px; }

details > summary {
  cursor: pointer; color: var(--ink); font-weight: 600; font-size: 13.5px;
  margin: 2px 0 10px; list-style: none; user-select: none;
}
details > summary::-webkit-details-marker { display: none; }
details > summary::before { content: "▸"; color: var(--muted); margin-right: 6px; }
details[open] > summary::before { content: "▾"; }

/* ── output / surfaces ── */
.out-actions { display: flex; gap: 10px; }
#playbtn { flex: 1; font-size: 15px; padding: 12px; border-radius: 12px; letter-spacing: .3px; }
#savebtn {
  font-size: 14px; padding: 12px 16px; border-radius: 12px; white-space: nowrap;
  background: #222836; color: var(--ink); border: 1px solid var(--line);
}
#savebtn:hover { background: #2a3140; filter: none; }
#savebtn:disabled { opacity: .45; cursor: not-allowed; transform: none; filter: none; }
#meta { color: var(--muted); font-size: 12.5px; min-height: 1.2em; }
.phon {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  background: #0e131c; border: 1px solid var(--line); border-radius: 10px;
  padding: 10px 12px; min-height: 1.4em; word-break: break-word; color: #ccd5e6;
}
.surf-head-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 4px; }
.surf-head { font-weight: 600; font-size: 13.5px; }
.surf-label-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin: 12px 0 4px; }
.surf-label { font-size: 12.5px; font-weight: 600; }
.surf { border: 1px solid var(--line); border-radius: 10px; cursor: crosshair; background: #0c0f15; }
.hint { color: var(--muted); font-size: 12px; margin-top: 8px; }
canvas { display: block; width: 100%; }