html{ color-scheme: light only; }
:root{
  --bg:#15161a;
  --panel:#1f2025;
  --panel-raised:#292a30;
  --groove:#0c0d0f;
  --line:#35363c;
  --text:#eae7e0;
  --text-dim:#8b8c92;
  --accent:#e8a33d;
  --accent-2:#5eead4;
  --danger:#ef5b5b;
}
*{box-sizing:border-box; -webkit-tap-highlight-color:transparent;}
html,body{margin:0; padding:0; height:100%; background:var(--bg); overflow:hidden;}
body{
  font-family:'Inter', sans-serif;
  color:var(--text);
  display:flex;
  align-items:center;
  justify-content:center;
  height:100vh; /* fallback for older browsers */
  height:100dvh;
  width:100vw;
}

#app{
  width:100%;
  height:100%;
  max-width:520px;
  display:flex;
  flex-direction:column;
  position:relative;
}

/* ===== HEADER ===== */
.app-header{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  padding:18px 20px 10px;
  flex-shrink:0;
}
.brand{
  font-family:'Space Grotesk', sans-serif;
  font-weight:700;
  font-size:20px;
  letter-spacing:0.5px;
}
.brand span{color:var(--accent);}
.brand-sub{
  font-family:'JetBrains Mono', monospace;
  font-size:10px;
  color:var(--text-dim);
  letter-spacing:1.5px;
  text-transform:uppercase;
}

/* ===== PREVIEW PANEL (mimics the light panel hardware) ===== */
.preview-wrap{
  padding:0 20px;
  flex-shrink:0;
}
.preview{
  position:relative;
  height:150px;
  border-radius:14px;
  background: var(--current-color, #ffffff);
  filter: brightness(var(--intensity, 1));
  box-shadow: 0 0 40px 4px color-mix(in srgb, var(--current-color, #fff) 55%, transparent),
              inset 0 0 0 1px rgba(255,255,255,0.15);
  transition: box-shadow 0.15s ease;
  overflow:hidden;
}
.preview::after{
  content:'';
  position:absolute; inset:0;
  background: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.35), transparent 60%);
  pointer-events:none;
}
.preview-label{
  position:absolute;
  bottom:8px; left:10px;
  font-family:'JetBrains Mono', monospace;
  font-size:9px;
  letter-spacing:1px;
  color:rgba(0,0,0,0.55);
  text-transform:uppercase;
  z-index:2;
}

/* ===== LCD READOUT ===== */
.readout{
  margin:12px 20px 0;
  background:var(--groove);
  border-radius:10px;
  padding:12px 14px;
  display:flex;
  justify-content:space-between;
  font-family:'JetBrains Mono', monospace;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.04), inset 0 2px 6px rgba(0,0,0,0.5);
  flex-shrink:0;
}
.readout-item{ text-align:left; }
.readout-item .k{ font-size:9px; color:var(--text-dim); letter-spacing:1px; }
.readout-item .v{
  font-size:13px; color:var(--accent-2); margin-top:2px;
  font-family:'JetBrains Mono', monospace;
  background:transparent;
  border:none;
  border-bottom:1px solid transparent;
  outline:none;
  width:100%;
  padding:0;
}
.readout-item .v:focus{
  color:var(--text);
  border-bottom-color:var(--accent-2);
}
.readout-item .v:disabled{
  color:var(--text-dim);
  opacity:0.55;
  cursor:not-allowed;
}

/* ===== TABS ===== */
.tabs{
  display:flex;
  gap:6px;
  margin:16px 20px 4px;
  flex-shrink:0;
}
.tab{
  flex:1;
  text-align:center;
  padding:9px 6px;
  border-radius:8px;
  font-size:11px;
  font-weight:600;
  letter-spacing:0.4px;
  text-transform:uppercase;
  color:var(--text-dim);
  background:var(--panel);
  border:1px solid var(--line);
  cursor:pointer;
  user-select:none;
  transition: all 0.15s ease;
}
.tab.active{
  color:#15161a;
  background:var(--accent);
  border-color:var(--accent);
}

/* ===== CONTROL DECK (scrollable) ===== */
.deck{
  flex:1;
  overflow-y:auto;
  padding:14px 20px 100px;
}
.panel-block{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:12px;
  padding:14px 16px;
  margin-bottom:12px;
}
.row{ margin-bottom:16px; }
.row:last-child{ margin-bottom:0; }
.row-label{
  display:flex;
  justify-content:space-between;
  font-size:11px;
  color:var(--text-dim);
  letter-spacing:0.4px;
  text-transform:uppercase;
  margin-bottom:8px;
}
.row-label .num{
  font-family:'JetBrains Mono', monospace;
  color:var(--text);
  font-size:12px;
}

input[type="range"]{
  -webkit-appearance:none;
  appearance:none;
  width:100%;
  height:10px;
  border-radius:6px;
  background:var(--groove);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.05), inset 0 2px 4px rgba(0,0,0,0.4);
  outline:none;
  cursor:pointer;
}
input[type="range"]::-webkit-slider-thumb{
  -webkit-appearance:none;
  width:20px; height:20px;
  border-radius:50%;
  background: radial-gradient(circle at 35% 30%, #fff, #c9c9c9 40%, #8a8a8a 100%);
  box-shadow: 0 0 0 2px var(--groove), 0 0 6px rgba(0,0,0,0.5);
  border:none;
  margin-top:0;
}
input[type="range"]::-moz-range-thumb{
  width:18px; height:18px;
  border-radius:50%;
  background: radial-gradient(circle at 35% 30%, #fff, #c9c9c9 40%, #8a8a8a 100%);
  border:2px solid var(--groove);
}

#slider-h, #slider-h-live{ background: linear-gradient(90deg, red, yellow, lime, cyan, blue, magenta, red); }
/* #slider-cct's track gradient is built in JS (ui.js) from kelvinToRgb(),
   since it needs the same color math the rest of the app uses. */

.preset-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap:10px;
}
.preset{
  aspect-ratio:1;
  border-radius:10px;
  border:1px solid var(--line);
  cursor:pointer;
  position:relative;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.1);
}
.preset span{
  position:absolute;
  bottom:-16px; left:0; right:0;
  text-align:center;
  font-size:9px;
  color:var(--text-dim);
  letter-spacing:0.3px;
}
.preset-delete{
  position:absolute;
  top:4px; right:4px;
  width:18px; height:18px;
  border-radius:50%;
  border:none;
  background:rgba(0,0,0,0.45);
  color:#fff;
  font-size:12px;
  line-height:18px;
  text-align:center;
  padding:0;
  cursor:pointer;
}
.preset-add{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:2px;
  background:transparent;
  border:1px dashed var(--line);
  box-shadow:none;
}
.preset-add-icon{
  font-size:20px;
  line-height:1;
  color:var(--text-dim);
}
.preset-add-label{
  font-size:9px;
  letter-spacing:0.3px;
  text-transform:uppercase;
  color:var(--text-dim);
}
.preset-grid{ margin-bottom:24px; }

.fx-grid{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap:8px;
}
.fx-btn{
  padding:12px 10px;
  border-radius:10px;
  background:var(--panel-raised);
  border:1px solid var(--line);
  color:var(--text);
  font-size:12px;
  font-weight:600;
  text-align:left;
  cursor:pointer;
}
.fx-btn .desc{
  display:block;
  font-weight:400;
  font-size:10px;
  color:var(--text-dim);
  margin-top:2px;
}
.fx-btn.active{
  border-color:var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
  color:var(--accent);
}
.fx-btn.active .desc{ color:var(--accent); opacity:0.7; }

/* ===== GO LIVE BUTTON ===== */
.go-live-wrap{
  position:absolute;
  bottom:0; left:0; right:0;
  padding:14px 20px calc(22px + env(safe-area-inset-bottom));
  background: linear-gradient(to top, var(--bg) 60%, transparent);
  flex-shrink:0;
}
.go-live{
  width:100%;
  padding:16px;
  border-radius:12px;
  border:none;
  background: var(--accent);
  color:#1a1305;
  font-family:'Space Grotesk', sans-serif;
  font-weight:700;
  font-size:15px;
  letter-spacing:0.5px;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  box-shadow: 0 4px 20px rgba(232,163,61,0.35);
}
.go-live .dot{
  width:8px; height:8px; border-radius:50%;
  background:#1a1305;
}

/* ===== LIVE MODE ===== */
#live-stage{
  position:fixed;
  inset:0;
  background: var(--current-color, #fff);
  filter: brightness(var(--intensity, 1)) var(--fx-filter, none);
  z-index:50;
  display:none;
}
#live-stage.on{ display:block; }

.live-tray{
  position:absolute;
  bottom:0; left:0; right:0;
  padding:16px 18px calc(26px + env(safe-area-inset-bottom));
  background: linear-gradient(to top, rgba(0,0,0,0.55), transparent);
  display:flex;
  flex-direction:column;
  gap:10px;
  opacity:0;
  pointer-events:none;
  transition: opacity 0.25s ease;
}
.live-tray.show{ opacity:1; pointer-events:auto; }

.tray-row{ display:flex; align-items:center; gap:10px; }
.tray-row label{
  font-family:'JetBrains Mono', monospace;
  font-size:9px;
  color:rgba(0,0,0,0.6);
  width:64px;
  flex-shrink:0;
  text-transform:uppercase;
  letter-spacing:0.3px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.tray-group{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.exit-btn{
  align-self:flex-end;
  padding:10px 16px;
  border-radius:20px;
  border:1px solid rgba(0,0,0,0.25);
  background:rgba(0,0,0,0.35);
  color:#fff;
  font-size:12px;
  font-weight:600;
  cursor:pointer;
}
.tap-hint{
  position:absolute;
  top:16px; left:0; right:0;
  text-align:center;
  font-family:'JetBrains Mono', monospace;
  font-size:10px;
  color:rgba(0,0,0,0.35);
  letter-spacing:1px;
  pointer-events:none;
  text-transform:uppercase;
}

::-webkit-scrollbar{ width:0; }

/* ===== MODAL (Add Preset, etc.) ===== */
.modal-overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,0.6);
  display:none;
  align-items:center;
  justify-content:center;
  z-index:100;
  padding:20px;
}
.modal-overlay.show{ display:flex; }
.modal-card{
  width:100%;
  max-width:360px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:14px;
  padding:20px;
  box-shadow:0 20px 60px rgba(0,0,0,0.5);
}
.modal-title{
  font-family:'Space Grotesk', sans-serif;
  font-weight:700;
  font-size:16px;
  margin-bottom:10px;
}
.modal-disclaimer{
  font-size:11px;
  line-height:1.5;
  color:var(--text-dim);
  margin:0 0 14px;
}
.modal-input{
  width:100%;
  padding:12px 14px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--groove);
  color:var(--text);
  font-family:'Inter', sans-serif;
  font-size:14px;
  outline:none;
  margin-bottom:16px;
}
.modal-input:focus{ border-color:var(--accent); }
.modal-actions{
  display:flex;
  gap:10px;
  justify-content:flex-end;
}
.modal-btn{
  padding:10px 18px;
  border-radius:10px;
  border:none;
  font-family:'Space Grotesk', sans-serif;
  font-weight:600;
  font-size:13px;
  cursor:pointer;
}
.modal-btn-secondary{
  background:var(--panel-raised);
  color:var(--text-dim);
  border:1px solid var(--line);
}
.modal-btn-primary{
  background:var(--accent);
  color:#1a1305;
}
.modal-btn-primary:disabled{
  opacity:0.4;
  cursor:not-allowed;
}