/* ==========================================================================
   Phosphene — styles
   Dark and quiet on purpose: the visuals are the star, the interface isn't.
   ========================================================================== */
:root {
  --bg: #0a0b0f;
  --panel: #12141a;
  --panel-2: #181b23;
  --line: #242833;
  --text: #d9dce6;
  --dim: #7d8499;
  --accent: #8b7bff;
  --accent-2: #3fd8ff;
  --track: #2a2f3c;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--text);
  font: 13px/1.4 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif; overflow: hidden; }

#app { display: flex; height: 100%; }
#stage { position: relative; flex: 1; min-width: 0; background: #000; overflow: hidden; }
#gl { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

body.panel-hidden #panel { display: none; }
body.idle #stage { cursor: none; }
body.idle #transport { opacity: 0; pointer-events: none; }

/* ---------- Drop hint / errors / fps ---------- */
#dropHint { position: absolute; left: 50%; top: 42%; transform: translate(-50%, -50%); text-align: center;
  max-width: 440px; padding: 18px 24px; border-radius: 14px; background: rgba(8,9,14,.55); backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.08); pointer-events: none; transition: opacity .4s; }
#dropHint.gone { opacity: 0; }
.dropTitle { font-size: 17px; font-weight: 600; margin-bottom: 6px; }
.dropSub { color: var(--dim); }
body.dragging #stage::after { content: "Drop to load"; position: absolute; inset: 12px; border: 2px dashed var(--accent);
  border-radius: 16px; display: grid; place-items: center; font-size: 22px; background: rgba(139,123,255,.12); pointer-events: none; }

#errorBox { position: absolute; left: 16px; right: 16px; top: 16px; max-height: 40%; overflow: auto; z-index: 5;
  background: rgba(60,12,20,.94); border: 1px solid #a33; border-radius: 10px; padding: 12px 14px;
  font: 12px/1.45 ui-monospace, Menlo, monospace; white-space: pre-wrap; color: #ffd6d6; }
#errorBox .hint { font-family: inherit; color: #ffb3b3; margin-bottom: 6px; font-weight: 600; }

#fps { position: absolute; right: 12px; top: 10px; font: 11px ui-monospace, Menlo, monospace; color: rgba(255,255,255,.45); pointer-events: none; }

/* ---------- Transport bar ---------- */
#transport { position: absolute; left: 14px; right: 14px; bottom: 14px; display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; background: rgba(12,13,18,.72); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,.08); border-radius: 14px; transition: opacity .35s; }
.tbtn { background: transparent; border: 0; color: var(--text); cursor: pointer; border-radius: 8px; height: 32px; min-width: 32px;
  display: inline-grid; place-items: center; padding: 0 8px; font: inherit; }
.tbtn:hover:not(:disabled) { background: rgba(255,255,255,.09); }
.tbtn:disabled { opacity: .35; cursor: default; }
.tbtn svg { width: 18px; height: 18px; fill: currentColor; }
.tbtn.text { padding: 0 12px; background: rgba(139,123,255,.2); border: 1px solid rgba(139,123,255,.45); font-weight: 600; }
.tbtn.text:hover { background: rgba(139,123,255,.35) !important; }
.tbtn.round { width: 36px; height: 36px; border-radius: 50%; background: var(--text); color: #111; }
.tbtn.round:hover:not(:disabled) { background: #fff; }
.tbtn.round svg { width: 18px; height: 18px; }
.time { font: 12px ui-monospace, Menlo, monospace; color: var(--dim); min-width: 34px; text-align: center; }
.track { color: var(--dim); max-width: 18vw; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#seek { flex: 1; min-width: 80px; }
.vol { display: flex; align-items: center; gap: 6px; }
.vol svg { width: 16px; height: 16px; fill: var(--dim); }
.vol input { width: 70px; }

/* ---------- Sliders ---------- */
input[type=range] { -webkit-appearance: none; appearance: none; height: 4px; border-radius: 2px; cursor: pointer; margin: 0; width: 100%;
  background: linear-gradient(to right, var(--accent) var(--p, 50%), var(--track) var(--p, 50%)); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 12px; height: 12px; border-radius: 50%; background: #fff; border: 0; box-shadow: 0 0 0 3px rgba(139,123,255,.25); }
input[type=range]::-moz-range-thumb { width: 12px; height: 12px; border-radius: 50%; background: #fff; border: 0; }
input[type=range]:disabled { opacity: .4; cursor: default; }

/* ---------- Panel ---------- */
#panel { width: 344px; flex: none; background: var(--panel); border-left: 1px solid var(--line); overflow-y: auto; padding: 14px 14px 24px; }
#panel::-webkit-scrollbar { width: 8px; } #panel::-webkit-scrollbar-thumb { background: var(--track); border-radius: 4px; }
.brand { display: flex; align-items: baseline; gap: 8px; margin: 2px 2px 12px; }
.brand b { font-size: 16px; letter-spacing: .02em; background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.brand span { color: var(--dim); font-size: 11px; }

.engines { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-bottom: 8px; }
.engines button { background: var(--panel-2); border: 1px solid var(--line); color: var(--text); border-radius: 9px; padding: 9px 6px; cursor: pointer; font: inherit; font-weight: 600; }
.engines button:hover { border-color: #3a4052; }
.engines button.on { border-color: var(--accent); background: rgba(139,123,255,.16); }
.blurb { color: var(--dim); font-size: 12px; margin: 0 2px 12px; min-height: 2.8em; }

details { border-top: 1px solid var(--line); padding: 4px 0; }
details > summary { list-style: none; cursor: pointer; padding: 9px 2px; font-weight: 600; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); display: flex; justify-content: space-between; }
details > summary::-webkit-details-marker { display: none; }
details > summary::after { content: "＋"; font-weight: 400; }
details[open] > summary { color: var(--text); }
details[open] > summary::after { content: "－"; }
.sec { padding: 2px 2px 10px; }

.param { margin-bottom: 11px; }
.param .row { display: flex; align-items: center; gap: 8px; margin-bottom: 5px; }
.param label { flex: 1; color: var(--text); }
.param .val { font: 11px ui-monospace, Menlo, monospace; color: var(--dim); }
/* typeable number boxes */
.numbox { width: 58px; text-align: right; background: transparent; border: 1px solid transparent; border-radius: 5px; padding: 2px 4px; margin: -2px 0; outline: none; }
.numbox:hover { border-color: var(--line); color: var(--text); }
.numbox:focus { border-color: var(--accent); background: var(--panel-2); color: #fff; }
.resetbtn { width: 20px; height: 20px; padding: 0; border-radius: 10px; border: 1px solid var(--line); background: transparent; color: var(--text); font-size: 12px; line-height: 1; cursor: pointer; }
.resetbtn:hover { border-color: var(--accent); background: rgba(139,123,255,.2); }
.resetbtn.isdef { opacity: .28; }
.modbtn { font: 10px ui-monospace, Menlo, monospace; letter-spacing: .04em; min-width: 30px; height: 20px; padding: 0 6px; border-radius: 10px;
  border: 1px solid var(--line); background: transparent; color: var(--dim); cursor: pointer; }
.modbtn:hover { border-color: #3a4052; color: var(--text); }
.modbtn.active { color: #0d0d12; background: var(--accent-2); border-color: var(--accent-2); font-weight: 700; }
.sliderwrap { position: relative; height: 14px; display: flex; align-items: center; }
.marker { position: absolute; top: 50%; width: 3px; height: 14px; margin-top: -7px; border-radius: 2px; background: var(--accent-2); box-shadow: 0 0 6px var(--accent-2); pointer-events: none; display: none; }
.modrow { display: grid; grid-template-columns: 112px 1fr 54px; gap: 8px; align-items: center; margin-top: 8px; padding: 8px; background: var(--panel-2); border-radius: 8px; }
.modrow[hidden] { display: none; }
select, .panel-btn { background: var(--panel-2); color: var(--text); border: 1px solid var(--line); border-radius: 7px; padding: 5px 7px; font: inherit; }
select { width: 100%; }
.modrow select { padding: 3px 5px; font-size: 12px; }
.modrow .val { text-align: right; }
.modrow .numbox { width: 100%; }

.colors { display: flex; gap: 6px; margin: 8px 0 12px; }
.colors input[type=color], .bgrow input[type=color] { -webkit-appearance: none; appearance: none; border: 1px solid var(--line); padding: 0; width: 100%; height: 30px; border-radius: 7px; background: none; cursor: pointer; }
.colors input::-webkit-color-swatch-wrapper, .bgrow input::-webkit-color-swatch-wrapper { padding: 0; }
.colors input::-webkit-color-swatch, .bgrow input::-webkit-color-swatch { border: 0; border-radius: 6px; }
.bgrow { display: grid; grid-template-columns: 1fr 80px; gap: 8px; align-items: center; margin-bottom: 12px; }

.check { display: flex; align-items: center; gap: 8px; margin: 4px 0 10px; cursor: pointer; }
.check input { accent-color: var(--accent); }
.meters { display: grid; gap: 6px; margin: 4px 0 14px; }
.meter { display: grid; grid-template-columns: 48px 1fr; align-items: center; gap: 8px; color: var(--dim); font-size: 11px; }
.meter .bar { height: 8px; background: var(--track); border-radius: 4px; overflow: hidden; }
.meter .fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.hint { color: var(--dim); font-size: 12px; margin: 2px 0 12px; }

.actions { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-top: 14px; border-top: 1px solid var(--line); padding-top: 14px; }
.panel-btn { cursor: pointer; font-weight: 600; }
.panel-btn:hover { border-color: var(--accent); }
.panel-btn.primary { background: rgba(139,123,255,.18); border-color: rgba(139,123,255,.5); grid-column: 1 / -1; }
.keys { color: var(--dim); font-size: 11px; margin-top: 12px; line-height: 1.7; }
kbd { background: var(--panel-2); border: 1px solid var(--line); border-radius: 4px; padding: 0 5px; font: 10px ui-monospace, Menlo, monospace; }

/* ---------- Image section ---------- */
.imgrow { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.imgrow .panel-btn { flex: 1; }
.imgthumb { width: 48px; height: 48px; object-fit: contain; border-radius: 6px; border: 1px solid var(--line);
  background: conic-gradient(#2a2f3c 25%, #1a1d26 0 50%, #2a2f3c 0 75%, #1a1d26 0) 0 0 / 12px 12px; }
#imgHint { position: absolute; left: 50%; top: 42%; transform: translate(-50%, -50%); text-align: center; max-width: 360px;
  padding: 14px 20px; border-radius: 12px; background: rgba(8,9,14,.6); backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.08); color: var(--text); pointer-events: none; }
#imgHint[hidden] { display: none; }

.modbtn { min-width: 52px; }

/* how far the music can push a slider */
.reach { position: absolute; top: 50%; height: 8px; margin-top: -4px; border-radius: 4px; background: rgba(63,216,255,.32); pointer-events: none; display: none; }