/* TONELAB Tools pages: FSK2DAW, Loop2BPM, BPM Delays, ASR-10 Short Cuts.
   Built on the FSK2DAW form style; colours and fonts come from tonelab.css. */

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--tl-bg); }
body { margin: 0; background: var(--tl-bg); color: var(--tl-text); font: 15px/1.5 var(--tl-font); -webkit-font-smoothing: antialiased; }
a { color: var(--tl-accent); }

.tl-main { max-width: 580px; margin: 0 auto; padding: 48px 16px 56px; }
.tl-main.wide { max-width: 1000px; }
.tl-main h1 { font-family: var(--tl-head); font-weight: 600; font-size: 30px; line-height: 1.2; margin: 0 0 6px; text-align: center; color: #fff; }
.tl-main .sub { color: var(--tl-muted); margin: 0 0 24px; text-align: center; }

.panel { background: var(--tl-panel); border: 1px solid var(--tl-line); border-radius: 10px; padding: 20px; }
.panel + .panel { margin-top: 16px; }
.shortcuts-grid .panel { margin-top: 0; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 18px; }

label, .label { display: block; font-size: 12px; color: var(--tl-muted); margin-bottom: 6px; letter-spacing: .03em; }
input, select {
  width: 100%; min-height: 46px; background: var(--tl-bg); color: var(--tl-text);
  border: 1px solid var(--tl-line); border-radius: 6px; padding: 10px 12px;
  font: 500 16px var(--tl-mono); -webkit-appearance: none; appearance: none;
}
input::placeholder { color: var(--tl-muted); opacity: .7; }
select {
  background-image: linear-gradient(45deg, transparent 50%, var(--tl-muted) 50%), linear-gradient(135deg, var(--tl-muted) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px; background-repeat: no-repeat; padding-right: 32px;
}
input:focus, select:focus { outline: none; border-color: var(--tl-accent); }
.pair { display: flex; gap: 8px; } .pair > * { flex: 1; min-width: 0; }
.hint { font-size: 12px; color: var(--tl-muted); margin-top: 5px; }
.calc { font: 12px var(--tl-mono); color: var(--tl-accent); margin-top: 5px; min-height: 1.4em; }
.readout {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  margin: 20px 0 14px; padding: 12px 14px; border: 1px dashed var(--tl-line); border-radius: 6px;
  font: 14px var(--tl-mono); color: var(--tl-muted);
}
.readout b { color: var(--tl-text); font-weight: 600; }
.readout.over b { color: var(--tl-warn); }

.tl-main button, .tl-main .btn {
  display: block; width: 100%; min-height: 50px; padding: 14px; border: 0; border-radius: 6px; cursor: pointer;
  background: var(--tl-accent); color: var(--tl-accent-ink); font: 700 16px var(--tl-font); text-align: center;
}
.tl-main button:hover, .tl-main .btn:hover { background: var(--tl-accent-hover); }
.tl-main button:disabled { opacity: .45; cursor: not-allowed; }
.msg { margin-top: 12px; font-size: 14px; min-height: 1.5em; color: var(--tl-muted); text-align: center; white-space: pre-line; }
.msg.err { color: var(--tl-warn); }
.notes { margin: 24px 0 0; padding-left: 18px; color: var(--tl-muted); font-size: 13px; }
.notes li { margin-bottom: 6px; }

/* Calculators: BPM, Calculate, coarse tune, fine tune, sample rate */
.calc-form .f-bpm { order: 0; }
.calc-form .f-go { order: 1; align-self: end; }
.calc-form .f-go button { min-height: 46px; padding: 10px 14px; }
.calc-form .f-tune { order: 2; }
.calc-form .f-rate { order: 3; }
.error { margin: 12px 0 0; color: var(--tl-warn); font-size: 14px; text-align: center; }

/* Results: two columns, read-only boxes in the same style as the inputs */
.results-grid { display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: repeat(5, auto); grid-auto-flow: column; gap: 14px 18px; margin: 0; padding: 0; list-style: none; }
.result-box {
  display: flex; align-items: center; min-height: 46px; padding: 10px 12px;
  background: var(--tl-bg); border: 1px solid var(--tl-line); border-radius: 6px;
  font: 500 16px var(--tl-mono); color: var(--tl-text); font-variant-numeric: tabular-nums;
}
.result-box.empty { color: var(--tl-muted); }
.summary { margin: 16px 0 0; color: var(--tl-muted); font-size: 14px; text-align: center; }
.tutorial { margin: 24px 0 0; text-align: center; font-size: 16px; }
.tutorial a { color: var(--tl-accent); text-decoration: none; font-weight: 600; }
.tutorial a:hover { text-decoration: underline; }

/* ASR-10 short cuts */
.shortcuts-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.shortcuts-grid section { margin: 0; }
.shortcuts-grid h2 { font-family: var(--tl-head); font-weight: 600; font-size: 17px; color: #fff; margin: 0 0 10px; }
.shortcuts-grid ul { list-style: none; padding: 0; margin: 0; }
.shortcuts-grid li { padding: 3px 0; font-size: 14px; }
.shortcuts-grid .num { display: inline-block; min-width: 1.6em; font-family: var(--tl-mono); color: var(--tl-accent); }

@media (max-width: 520px) {
  .grid { grid-template-columns: 1fr; gap: 14px; }
  .panel { padding: 16px; }
  .tl-main { padding-top: 32px; }
  .tl-main h1 { font-size: 24px; }
  .results-grid { gap: 12px; }
}