/* cube-light simulator — the panel is a piece of the same broadcast-era set
   as the tube: amber phosphor text, faint scanlines, bevelled controls. */
:root {
  color-scheme: dark;
  --amber: #f7b34a; --amber-hi: #ffe08a; --hot: #ff3c6e; --dim: #8a7a5a;
  --ink: #06060a; --panel: #0b0b10; --line: #2a2418; --raised: #17151a;
  --display: "Righteous", "Helvetica Neue", Arial, sans-serif;
  --crt: "VT323", "Courier New", monospace;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: #000; color: #e8dcc0;
  font: 12px/1.45 var(--mono); overflow: hidden; }
#view { position: fixed; inset: 0; width: 100%; height: 100%; display: block; }
body.framed #view { inset: auto; box-shadow: 0 0 0 1px #1a1814; }  /* letterboxed; JS sets size + position */
#loading { position: fixed; inset: 0; display: grid; place-items: center; color: var(--amber);
  font: 28px var(--crt); letter-spacing: .2em; text-transform: uppercase; background: #000; z-index: 20; }
[hidden] { display: none !important; }
::selection { background: var(--amber); color: #000; }

/* ---- panel ---- */
#panel { position: fixed; top: 0; left: 0; bottom: 0; width: 336px; overflow-y: auto;
  background: linear-gradient(180deg, rgba(14,12,16,.94), rgba(8,8,12,.94));
  backdrop-filter: blur(8px); border-right: 1px solid var(--line);
  padding: 14px 16px 22px; transition: transform .25s; z-index: 5; }
#panel::before { /* scanlines over the panel */
  content: ""; position: absolute; inset: 0; pointer-events: none; z-index: -1;
  background: repeating-linear-gradient(0deg, rgba(255,255,255,.028) 0 1px, transparent 1px 3px); }
#panel.hidden { transform: translateX(-100%); }
#panel::-webkit-scrollbar { width: 8px; } #panel::-webkit-scrollbar-thumb { background: #2a2418; border-radius: 4px; }
#panelShow { position: fixed; top: 12px; left: 12px; z-index: 6; font-size: 18px; padding: 4px 10px; }
#panel header { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
h1 { font: 400 30px/1 var(--display); letter-spacing: .02em; margin: 0; flex: 1;
  background: linear-gradient(#fff3a0, #ff9a3c 55%, #ff3c6e); -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 8px rgba(255,150,60,.35)); }
#panelToggle { padding: 2px 8px; }
.about { color: #b9ab8c; margin: 0 0 10px; font-size: 12px; }
.about a { color: var(--amber); text-decoration: none; border-bottom: 1px dotted var(--amber); }
.about a:hover { color: var(--amber-hi); }
section, details { border-top: 1px solid var(--line); padding: 10px 0; }
h2 { font: 20px/1 var(--crt); text-transform: uppercase; letter-spacing: .08em; color: var(--amber); margin: 0 0 8px;
  text-shadow: 0 0 6px rgba(247,179,74,.45); display: flex; justify-content: space-between; align-items: center; gap: 8px; }
h2::before { content: "▮ "; color: var(--hot); text-shadow: 0 0 6px var(--hot); }
details > summary { cursor: pointer; list-style: none; }
details > summary::-webkit-details-marker { display: none; }
details > summary h2::before { content: "▸ "; color: var(--dim); text-shadow: none; }
details[open] > summary h2::before { content: "▾ "; }
details > summary h2 { width: 100%; }
details > summary + * { margin-top: 8px; }
h3 { font: 17px/1 var(--crt); text-transform: uppercase; letter-spacing: .08em; color: var(--dim); margin: 14px 0 6px; border-top: 1px dashed var(--line); padding-top: 10px; }
.hint { color: var(--dim); font-size: 11px; font-family: var(--mono); font-weight: normal; text-transform: none; letter-spacing: 0; margin: 0 0 8px; text-shadow: none; }
label { display: block; margin: 5px 0; color: #cdbf9f; font-family: var(--crt); font-size: 17px; }
label > select, label > input[type=text] { width: 100%; margin-top: 2px; }
select, input[type=text] { background: var(--ink); color: var(--amber-hi); border: 1px solid var(--line); border-radius: 2px;
  padding: 4px 8px; font: 16px var(--crt); box-shadow: inset 0 0 0 1px rgba(0,0,0,.6), inset 0 1px 6px rgba(0,0,0,.8); }
select:focus, input[type=text]:focus { outline: none; border-color: var(--amber); box-shadow: 0 0 8px rgba(247,179,74,.35); }
select { appearance: none; -webkit-appearance: none; padding-right: 22px;
  background-image: linear-gradient(45deg, transparent 50%, var(--amber) 50%), linear-gradient(135deg, var(--amber) 50%, transparent 50%);
  background-position: calc(100% - 13px) 55%, calc(100% - 8px) 55%; background-size: 5px 5px; background-repeat: no-repeat; }
.row { display: flex; gap: 8px; align-items: center; }
.row > * { flex: 1; }
.chk { display: flex; gap: 8px; align-items: center; }

/* ---- sliders: a lit amber track up to the value, dark beyond, one knob ---- */
input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 20px; background: transparent; margin: 0; cursor: pointer; --p: 0%; }
input[type=range]::-webkit-slider-runnable-track { height: 6px; border-radius: 3px;
  background: linear-gradient(90deg, var(--amber) 0 var(--p), #2a2418 var(--p) 100%);
  box-shadow: inset 0 1px 2px rgba(0,0,0,.8), 0 0 6px rgba(247,179,74,.15); }
input[type=range]::-moz-range-track { height: 6px; border-radius: 3px; background: #2a2418; }
input[type=range]::-moz-range-progress { height: 6px; border-radius: 3px; background: var(--amber); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 12px; height: 18px; margin-top: -6px; border-radius: 2px;
  background: linear-gradient(180deg, var(--amber-hi), var(--amber)); border: 1px solid #000;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.45), 0 0 8px rgba(247,179,74,.55); }
input[type=range]::-moz-range-thumb { width: 12px; height: 18px; border-radius: 2px; background: var(--amber); border: 1px solid #000; }
input[type=range]:focus { outline: none; }
input[type=range]:active::-webkit-slider-thumb { background: #fff; box-shadow: 0 0 12px rgba(255,224,138,.9); }

.param { margin: 7px 0 4px; }
.param .hdr { display: flex; justify-content: space-between; font: 17px/1.1 var(--crt); color: #cdbf9f; }
.param .hdr .val { color: var(--amber-hi); text-shadow: 0 0 6px rgba(255,224,138,.5); font-variant-numeric: tabular-nums; }
.param[title] { cursor: help; }

/* ---- buttons: bevelled console keys ---- */
button { background: linear-gradient(180deg, #232028, #141218); color: var(--amber-hi); border: 1px solid #000; border-radius: 3px;
  padding: 6px 10px; font: 16px var(--crt); letter-spacing: .04em; cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.12), inset 0 -2px 0 rgba(0,0,0,.6), 0 0 0 1px rgba(247,179,74,.18); }
button:hover { color: #fff; box-shadow: inset 0 1px 0 rgba(255,255,255,.12), inset 0 -2px 0 rgba(0,0,0,.6), 0 0 0 1px rgba(247,179,74,.5), 0 0 10px rgba(247,179,74,.25); }
button:active { transform: translateY(1px); box-shadow: inset 0 2px 4px rgba(0,0,0,.8), 0 0 0 1px rgba(247,179,74,.5); }
button.mini { padding: 0 6px; font-size: 13px; flex: 0 0 auto; white-space: nowrap; }
button.rec { background: linear-gradient(180deg, #a4202c, #5a1018); color: #fff; box-shadow: 0 0 12px rgba(255,60,110,.6); animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { box-shadow: 0 0 2px rgba(255,60,110,.2); } }
button.primary { background: linear-gradient(180deg, #c8602a, #7a3410); color: #fff; box-shadow: inset 0 1px 0 rgba(255,255,255,.2), 0 0 0 1px var(--amber), 0 0 14px rgba(247,179,74,.35); }
label.file { background: linear-gradient(180deg, #232028, #141218); border: 1px solid #000; border-radius: 3px; padding: 6px 10px; text-align: center; cursor: pointer;
  color: var(--amber-hi); margin: 0; font: 16px var(--crt); box-shadow: inset 0 1px 0 rgba(255,255,255,.12), 0 0 0 1px rgba(247,179,74,.18); }
label.file input { display: none; }
input[type=checkbox] { appearance: none; -webkit-appearance: none; width: 30px; height: 16px; border-radius: 2px; background: #0a0a0e; border: 1px solid #000;
  box-shadow: inset 0 1px 3px rgba(0,0,0,.9), 0 0 0 1px rgba(247,179,74,.25); position: relative; cursor: pointer; margin: 0; flex: 0 0 auto; }
input[type=checkbox]::after { content: ""; position: absolute; top: 2px; left: 2px; width: 12px; height: 10px; border-radius: 1px;
  background: linear-gradient(180deg, #3a3640, #1c1a20); box-shadow: inset 0 1px 0 rgba(255,255,255,.18); transition: left .12s; }
input[type=checkbox]:checked { box-shadow: inset 0 1px 3px rgba(0,0,0,.9), 0 0 0 1px var(--amber), inset 0 0 8px rgba(247,179,74,.35); }
input[type=checkbox]:checked::after { left: 14px; background: linear-gradient(180deg, var(--amber-hi), var(--amber)); }
#recStatus { color: var(--dim); font-size: 11px; margin-top: 6px; min-height: 1.2em; }
footer { color: var(--dim); font-size: 11px; padding-top: 10px; border-top: 1px solid var(--line); }
footer a { color: var(--amber); text-decoration: none; }
kbd { background: #1a1820; border: 1px solid #000; border-bottom-width: 2px; border-radius: 2px; padding: 0 5px; font: 13px var(--crt); margin: 0 1px; color: var(--amber-hi); }

.transport button { flex: 0 0 36px; padding: 4px 0; font-size: 14px; }
.transport button.on { color: #fff; box-shadow: inset 0 1px 0 rgba(255,255,255,.12), inset 0 -2px 0 rgba(0,0,0,.6), 0 0 0 1px var(--amber), 0 0 10px rgba(247,179,74,.5); }
#plNow { flex: 1; color: var(--amber-hi); font: 17px var(--crt); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; text-shadow: 0 0 6px rgba(255,224,138,.4); }
#plList { margin: 8px 0; max-height: 170px; overflow-y: auto; border: 1px solid var(--line); background: var(--ink); border-radius: 2px;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.6), inset 0 1px 8px rgba(0,0,0,.8); }
#plList div { padding: 2px 8px; display: flex; justify-content: space-between; gap: 8px; cursor: pointer; font: 16px/1.3 var(--crt); color: #cdbf9f; }
#plList div:hover { background: #17141a; color: #fff; }
#plList div.now { background: #2a1d0f; color: var(--amber-hi); text-shadow: 0 0 6px rgba(255,224,138,.5); }
#plList div .dim { color: var(--dim); font-size: 14px; white-space: nowrap; }

#audioMeter { display: flex; align-items: flex-end; gap: 8px; height: 28px; margin-top: 6px; padding: 3px 4px; background: var(--ink); border: 1px solid var(--line);
  box-shadow: inset 0 1px 6px rgba(0,0,0,.8); }
#audioMeter .bands { display: flex; gap: 2px; flex: 1; height: 100%; align-items: flex-end; }
#audioMeter .bands i { flex: 1; background: linear-gradient(0deg, var(--amber), var(--amber-hi)); height: 2px; box-shadow: 0 0 4px rgba(247,179,74,.6); transition: height .05s; }
#audioMeter .beat { width: 12px; height: 12px; border-radius: 50%; background: var(--hot); box-shadow: 0 0 8px var(--hot); opacity: .15; }
#audioMeter .bpm { color: var(--amber); font: 15px var(--crt); width: 58px; text-align: right; font-variant-numeric: tabular-nums; }

#micTag { position: fixed; right: 18px; top: 14px; z-index: 4; font: 17px var(--crt); padding: 6px 12px;
  animation: nudge 3s ease-in-out infinite; }
#micTag u { text-decoration-color: var(--amber); }
@keyframes nudge { 0%, 100% { box-shadow: inset 0 1px 0 rgba(255,255,255,.12), inset 0 -2px 0 rgba(0,0,0,.6), 0 0 0 1px rgba(247,179,74,.25); }
  50% { box-shadow: inset 0 1px 0 rgba(255,255,255,.12), inset 0 -2px 0 rgba(0,0,0,.6), 0 0 0 1px var(--amber), 0 0 14px rgba(247,179,74,.5); } }

#modal { position: fixed; inset: 0; z-index: 10; display: grid; place-items: center; background: rgba(0,0,0,.72); backdrop-filter: blur(4px); }
#modal .card { width: min(480px, calc(100% - 32px)); background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 24px 26px; position: relative; overflow: hidden;
  box-shadow: 0 0 0 1px rgba(247,179,74,.15), 0 0 40px rgba(247,179,74,.12); }
#modal .card::before { content: ""; position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(255,255,255,.03) 0 1px, transparent 1px 3px); }
#modal h1 { font-size: 40px; margin-bottom: 12px; }
#modal p { color: #cdbf9f; margin: 8px 0; font-size: 13px; }
#modal p b { color: var(--amber-hi); }
#modal .dim { color: var(--dim); font-size: 11px; }
#modal .row { margin: 16px 0 8px; flex-wrap: wrap; }
#modal .row button { padding: 10px 12px; }
@media (max-width: 700px) { #panel { width: 100%; border-right: 0; } #micTag { top: auto; bottom: 14px; right: 12px; } }