/* KEY & SPEED — Beatif Studio identity
   Dual theme (dark default + light). Pink→Blue gradient. Satoshi type.
   Theme driven by [data-theme] on <html>. Toggle: #bfThemeToggle. */

/* ---- Accent (theme-independent) ---- */
:root {
  --pink:        #FF4D9D;
  --blue:        #5AA9FF;
  --grad:        linear-gradient(120deg, #FF4D9D, #9B5CFF);
  --purple:      #9B5CFF;
  --accent-grad: var(--grad);
  --led-red:     #FF5A4D;
  --warn:        #E08A2B;
  --warn-bright: #E89B3C;
  --ok:          #3BC97F;
  --danger:      #FF4D4D;
  --radius-card: 18px;
  --radius-pill: 999px;
  --bg-tint-a:   rgba(255,77,157,0.06);
  --bg-tint-b:   rgba(90,169,255,0.08);
  --bg-tint-c:   rgba(90,169,255,0.05);
}

/* ---- Dark (default) ---- */
:root,
[data-theme="dark"] {
  color-scheme: dark;
  --bg:        #16161A;
  --surface:   rgba(255,255,255,0.055);
  --surface-2: rgba(255,255,255,0.09);
  --border:    rgba(255,255,255,0.09);
  --border-2:  rgba(255,255,255,0.16);
  --text:      #F2F0FA;
  --dim:       #9896A8;
  --mute:      #5C5A6A;

  --glass-fill:        var(--surface);
  --glass-fill-deep:   var(--surface-2);
  --glass-stroke:      rgba(255,255,255,0.10);
  --glass-stroke-dark: var(--border);
  --panel-edge:        var(--border-2);

  --ink:      var(--text);
  --ink-dim:  var(--text);
  --ink-mute: var(--dim);
  --ink-deep: var(--mute);
  --hairline: var(--border-2);
  --hairline-soft: var(--border);

  --blue-deep:  #5AA9FF;
  --blue-soft:  rgba(90,169,255,0.22);
  --blue-bg:    rgba(90,169,255,0.10);
  --blue-glow:  rgba(90,169,255,0.45);
  --pink-glow:  rgba(255,77,157,0.40);
  --bk-line:    #FFFFFF;

  --led-white: var(--blue); --led-white-glow: var(--blue-glow); --led-white-soft: rgba(90,169,255,0.14);
  --led-blue: var(--blue);  --led-blue-glow: var(--blue-glow);  --led-blue-soft: rgba(90,169,255,0.14);
  --led-cyan: var(--blue);  --led-amber: var(--pink);           --led-amber-glow: var(--pink-glow);
  --led-green: var(--blue);

  --glass: rgba(255,255,255,0.055);
  --text-2: #9896A8;
}

/* ---- Light ---- */
[data-theme="light"] {
  color-scheme: light;
  --bg:        #F5F4FA;
  --surface:   rgba(255,255,255,0.72);
  --surface-2: rgba(255,255,255,0.85);
  --border:    rgba(20,20,30,0.07);
  --border-2:  rgba(20,20,30,0.12);
  --text:      #16161C;
  --dim:       #56565F;
  --mute:      #8C8C97;

  --glass-fill:        var(--surface);
  --glass-fill-deep:   var(--surface-2);
  --glass-stroke:      rgba(255,255,255,0.8);
  --glass-stroke-dark: var(--border-2);
  --panel-edge:        var(--border-2);

  --ink:      var(--text);
  --ink-dim:  var(--dim);
  --ink-mute: var(--mute);
  --ink-deep: var(--mute);
  --hairline: var(--border-2);
  --hairline-soft: var(--border);

  --blue-deep:  #3D8FE8;
  --blue-soft:  rgba(90,169,255,0.2);
  --blue-bg:    rgba(90,169,255,0.08);
  --blue-glow:  rgba(90,169,255,0.35);
  --pink-glow:  rgba(255,77,157,0.35);
  --bk-line:    #FF4DA0;

  --led-white: var(--blue); --led-white-glow: var(--blue-glow); --led-white-soft: rgba(90,169,255,0.12);
  --led-blue: var(--blue);  --led-blue-glow: var(--blue-glow);  --led-blue-soft: rgba(90,169,255,0.12);
  --led-cyan: var(--blue);  --led-amber: var(--pink);           --led-amber-glow: var(--pink-glow);
  --led-green: var(--blue);

  --glass: rgba(255,255,255,0.72);
  --text-2: #56565F;
}

* { box-sizing: border-box; }

/* ── Page background lives on DCArtboard, but face has its own gradient too ── */
.face {
  font-family: 'Satoshi', system-ui, -apple-system, sans-serif;
  color: var(--ink);
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  /* Mesh-gradient backdrop so glass actually has color to show through */
  background:
    radial-gradient(60% 40% at 20% 15%, var(--bg-tint-a) 0%, transparent 60%),
    radial-gradient(50% 40% at 85% 30%, var(--bg-tint-b) 0%, transparent 60%),
    radial-gradient(40% 35% at 50% 90%, var(--bg-tint-c) 0%, transparent 60%),
    linear-gradient(180deg, #FBFBFE 0%, #F4F4FA 100%);
  border: 1px solid rgba(255,255,255,0.7);
  box-shadow:
    inset 0 1px 0 #ffffff,
    0 30px 60px -20px rgba(20,22,40,0.18),
    0 0 0 1px rgba(90,169,255,0.18);
}

[data-theme="dark"] .face {
  background:
    radial-gradient(60% 40% at 20% 15%, var(--bg-tint-a) 0%, transparent 60%),
    radial-gradient(50% 40% at 85% 30%, var(--bg-tint-b) 0%, transparent 60%),
    radial-gradient(40% 35% at 50% 90%, var(--bg-tint-c) 0%, transparent 60%),
    var(--bg);
  border-color: var(--border-2);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.06),
    0 30px 60px -20px rgba(0,0,0,0.5),
    0 0 0 1px rgba(90,169,255,0.10);
}

.face::before, .face::after { content: none; }
.face > * { position: relative; z-index: 1; }

/* ── HEADER ── */
.fp-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 18px 22px;
  background: transparent;
  position: relative;
}
.fp-header::after { display: none; }
.fp-back {
  display: inline-flex; align-items: center; gap: 6px;
  font: 600 13px/1 'Satoshi', sans-serif;
  color: var(--ink-dim);
  background: var(--glass-fill);
  border: 1px solid var(--panel-edge);
  padding: 10px 14px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.7), 0 2px 6px rgba(20,22,40,0.08);
}
.fp-back:hover { color: var(--ink); }

.fp-brand { display: flex; align-items: center; gap: 10px; }
.fp-brand-mark {
  width: 32px; height: 32px;
  border-radius: 10px;
  background:
    radial-gradient(60% 60% at 30% 25%, rgba(255,255,255,0.95) 0%, transparent 65%),
    var(--accent-grad);
  border: 1px solid rgba(255,255,255,0.6);
  display: grid; place-items: center;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.95),
    inset 0 -1px 0 rgba(0,0,0,0.1),
    0 4px 12px var(--pink-glow);
}
.fp-brand-mark::after {
  content: "";
  width: 2px; height: 14px; border-radius: 1px;
  background: #ffffff;
  box-shadow: 0 0 6px rgba(255,255,255,0.6);
}
.fp-brand-text {
  font: 800 13px/1 'Satoshi', sans-serif;
  color: var(--ink);
  letter-spacing: 0.04em;
}
.fp-mode-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font: 700 11px/1 'Satoshi', sans-serif;
  letter-spacing: 0.02em;
  color: var(--blue-deep);
  background: var(--blue-bg);
  border: 1px solid rgba(90,169,255,0.25);
  padding: 10px 14px;
  border-radius: var(--radius-pill);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.5);
}
.fp-mode-tag .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 6px var(--blue-glow);
}
.fp-mode-tag.pro {
  color: #D6357F;
  background: rgba(255,77,157,0.10);
  border-color: rgba(255,77,157,0.25);
}
.fp-mode-tag.pro .dot { background: #FF4D9D; box-shadow: 0 0 6px rgba(255,77,157,0.35); }

/* ── TITLE ── */
.fp-title {
  text-align: center;
  padding: 8px 22px 6px;
}
.fp-title h1 {
  margin: 0;
  font: 800 38px/1 'Satoshi', sans-serif;
  letter-spacing: -0.025em;
  color: var(--ink);
  -webkit-background-clip: unset; background-clip: unset;
  -webkit-text-fill-color: currentColor;
  text-shadow: none;
  padding-left: 0;
}
.fp-title .pro-mark {
  -webkit-text-fill-color: var(--blue);
  color: var(--blue);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-left: 6px;
}
.fp-title p {
  margin: 8px 0 0;
  font: 600 12px/1 'Satoshi', sans-serif;
  letter-spacing: 0.04em;
  color: var(--ink-mute);
  text-transform: none;
  padding-left: 0;
}

/* ── BODY ── */
.fp-body {
  padding: 18px 22px 22px;
  display: flex; flex-direction: column;
  gap: 18px;
}

/* ── DROPZONE ── */
.dropzone {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: var(--glass-fill);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px dashed rgba(90,169,255,0.4);
  border-radius: var(--radius-card);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.8), 0 4px 16px rgba(20,22,40,0.08);
}
.dropzone.has-file {
  border-style: solid;
  border-color: rgba(90,169,255,0.3);
  background: var(--glass-fill-deep);
}
.dropzone .file-ico {
  width: 48px; height: 48px;
  border-radius: 14px;
  background:
    radial-gradient(60% 50% at 30% 25%, rgba(255,255,255,0.9) 0%, transparent 70%),
    linear-gradient(135deg, var(--blue-soft) 0%, var(--blue-bg) 100%);
  border: 1px solid rgba(255,255,255,0.7);
  display: grid; place-items: center;
  color: var(--blue-deep);
  box-shadow: inset 0 1px 0 #ffffff, 0 4px 10px var(--blue-glow);
}
.dropzone .file-meta { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.dropzone .file-name {
  font: 700 15px/1.2 'Satoshi', sans-serif;
  color: var(--ink);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  letter-spacing: -0.01em;
}
.dropzone .file-sub {
  font: 500 12px/1.2 'Satoshi', sans-serif;
  color: var(--ink-mute);
  letter-spacing: 0.01em;
}
.dropzone .file-cta {
  font: 700 12px/1 'Satoshi', sans-serif;
  color: var(--blue-deep);
  padding: 10px 14px;
  border: 1px solid rgba(90,169,255,0.2);
  border-radius: var(--radius-pill);
  background: var(--glass-fill);
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
}

/* ── KNOB STAGE ── */
.knob-stage {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 26px;
  padding: 28px 6px 18px;
}
.knob-flank { display: flex; flex-direction: column; gap: 12px; }
.knob-flank.l { align-items: flex-end; text-align: right; }
.knob-flank.r { align-items: flex-start; text-align: left; }
.vu {
  display: flex; flex-direction: column-reverse; gap: 3px;
  width: 18px; height: 160px;
  padding: 6px 4px;
  background: rgba(255,255,255,0.5);
  border: 1px solid var(--panel-edge);
  border-radius: 10px;
  box-shadow: inset 0 1px 2px rgba(20,22,40,0.12);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.vu .seg { flex: 1; border-radius: 1px; background: rgba(20,20,30,0.08); }
.vu .seg.on  { background: var(--blue-soft); box-shadow: 0 0 4px rgba(90,169,255,0.3); }
.vu .seg.mid { background: var(--blue); box-shadow: 0 0 6px var(--blue-glow); }
.vu .seg.hot { background: var(--led-red); box-shadow: 0 0 7px rgba(255,90,77,0.4); }
.vu-label {
  font: 700 10px/1 'Satoshi', sans-serif;
  letter-spacing: 0.06em; color: var(--ink-mute); text-transform: uppercase;
}
.flank-stat { display: flex; flex-direction: column; font-family: 'Satoshi', sans-serif; }
.flank-stat .v { font-size: 20px; font-weight: 800; color: var(--ink); letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.flank-stat .l { font-size: 11px; color: var(--ink-mute); letter-spacing: 0.04em; text-transform: uppercase; margin-top: 3px; font-weight: 600; }

.knob-wrap { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.knob-label {
  font: 700 11px/1 'Satoshi', sans-serif;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.knob-value {
  display: inline-flex; align-items: baseline; gap: 4px;
  font-family: 'Satoshi', sans-serif;
}
.knob-value .num {
  font-size: 44px; font-weight: 800; color: var(--ink); letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}
.knob-value .unit { font-size: 18px; color: var(--ink-mute); letter-spacing: -0.02em; font-weight: 700; }

/* ── WAVEFORM PANELS ── */
.wave-grid { display: grid; gap: 10px; }
.wave {
  position: relative;
  background: var(--glass-fill);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: 14px;
  padding: 12px 14px 14px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.8), 0 4px 14px rgba(20,22,40,0.08);
}
.wave-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.wave-head .name {
  font: 700 11px/1 'Satoshi', sans-serif;
  letter-spacing: 0.04em; color: var(--ink-dim);
  display: inline-flex; align-items: center; gap: 8px;
}
.wave-head .name .led { width: 7px; height: 7px; border-radius: 50%; background: #D6D6E0; }
.wave-head .name.on .led { background: var(--blue); box-shadow: 0 0 6px var(--blue-glow); }
.wave-head .name.result.on .led { background: var(--blue); box-shadow: 0 0 6px var(--blue-glow); }
.wave-head .time {
  font: 600 11px/1 'Satoshi', sans-serif;
  color: var(--ink-mute); letter-spacing: 0.01em;
  font-variant-numeric: tabular-nums;
}
.wave svg { display: block; width: 100%; height: 60px; }
.wave.empty {
  height: 80px; display: grid; place-items: center;
  color: var(--ink-mute);
  font: 600 12px/1 'Satoshi', sans-serif;
  letter-spacing: 0.02em;
}

/* ── PROGRESS ── */
.progress {
  position: relative;
  height: 8px;
  background: rgba(20,20,30,0.10);
  border-radius: 999px;
  overflow: hidden;
  box-shadow: inset 0 1px 2px rgba(20,22,40,0.12);
}
.progress > i {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: linear-gradient(90deg, var(--blue) 0%, #FF4D9D 100%);
  box-shadow: 0 0 10px var(--blue-glow);
  border-radius: inherit;
  transition: width 0.3s ease;
}
.progress-row {
  display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: center;
  font: 600 12px/1 'Satoshi', sans-serif;
  color: var(--ink-dim);
}

/* ── ACTION ── */
.action-row { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: center; }

.btn-primary {
  appearance: none; border: none; cursor: pointer;
  font: 700 16px/1 'Satoshi', sans-serif;
  letter-spacing: -0.01em;
  color: #ffffff;
  background: var(--accent-grad);
  border-radius: 16px;
  padding: 18px 24px;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.4),
    inset 0 -2px 0 rgba(45,110,210,0.45),
    0 8px 22px -6px var(--pink-glow),
    0 2px 6px rgba(45,110,210,0.2);
  transition: transform 0.08s ease, box-shadow 0.15s ease;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: inset 0 1px 0 rgba(255,255,255,0.4), inset 0 -2px 0 rgba(45,110,210,0.45), 0 12px 28px -6px var(--pink-glow); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary.is-busy {
  background: linear-gradient(180deg, #E2E2EA 0%, #CCCCD8 100%);
  color: var(--ink-mute);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.6);
}
.btn-primary .ico {
  display: inline-grid; place-items: center;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: rgba(255,255,255,0.22);
  color: #ffffff;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.4);
}
.btn-primary.is-busy .ico { background: rgba(20,22,40,0.15); color: var(--ink-mute); }

.btn-ghost {
  appearance: none; cursor: pointer;
  font: 700 13px/1 'Satoshi', sans-serif;
  color: var(--ink-dim);
  background: var(--glass-fill);
  border: 1px solid var(--panel-edge);
  border-radius: var(--radius-pill);
  padding: 12px 16px;
  display: inline-flex; align-items: center; gap: 8px;
}
.btn-ghost:hover { color: var(--ink); }
.btn-ghost.is-on {
  color: #ffffff;
  background: var(--blue);
  border-color: var(--blue);
  box-shadow: 0 4px 12px var(--blue-glow);
}

/* A/B compare cluster */
.ab-row {
  display: flex; gap: 6px; align-items: center;
  padding: 6px;
  background: var(--glass-fill);
  border: 1px solid var(--panel-edge);
  border-radius: var(--radius-pill);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.6);
}
.ab-row .ab-label {
  font: 800 11px/1 'Satoshi', sans-serif;
  color: var(--ink-mute);
  padding: 0 8px 0 8px;
}
.ab-btn {
  appearance: none; cursor: pointer;
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.85);
  border: 1px solid var(--panel-edge);
  color: var(--ink-dim);
  box-shadow: inset 0 1px 0 #ffffff, 0 2px 4px rgba(20,22,40,0.1);
  position: relative;
}
.ab-btn:hover { color: var(--ink); }
.ab-btn.is-on {
  background: var(--blue);
  color: #ffffff;
  border-color: var(--blue);
  box-shadow: 0 4px 14px var(--blue-glow), inset 0 1px 0 rgba(255,255,255,0.3);
}

/* ── STATS ── */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.stat {
  background: var(--glass-fill);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.7);
  border-radius: 14px;
  padding: 16px 18px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.8), 0 4px 14px rgba(20,22,40,0.08);
  position: relative; overflow: hidden;
}
.stat .lbl {
  font: 700 11px/1 'Satoshi', sans-serif;
  letter-spacing: 0.02em; color: var(--ink-mute);
}
.stat .v { display: flex; align-items: baseline; gap: 6px; margin-top: 10px; font-family: 'Satoshi', sans-serif; }
.stat .v .n {
  font-size: 34px; font-weight: 800; color: var(--ink);
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}
.stat .v .u { font-size: 13px; color: var(--ink-mute); letter-spacing: -0.01em; font-weight: 700; }
.stat.dim { opacity: 0.4; }
.stat .check {
  width: 28px; height: 28px;
  border-radius: 50%;
  background:
    radial-gradient(60% 50% at 30% 25%, #ffffff 0%, transparent 70%),
    var(--accent-grad);
  color: #ffffff;
  display: grid; place-items: center;
  box-shadow: 0 4px 10px var(--pink-glow), inset 0 1px 0 rgba(255,255,255,0.5);
  margin-top: 6px;
}

/* ── BANNERS ── */
.banner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 22px 22px;
  background:
    radial-gradient(60% 90% at 0% 50%, rgba(90,169,255,0.4) 0%, transparent 60%),
    linear-gradient(135deg, var(--blue-bg) 0%, #F2F3FB 100%);
  border: 1px solid rgba(90,169,255,0.25);
  border-radius: 18px;
  position: relative; overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.8), 0 6px 20px rgba(20,22,40,0.1);
}
.banner::after {
  content: "";
  position: absolute; right: -40px; top: -40px;
  width: 220px; height: 220px;
  background: radial-gradient(circle, rgba(90,169,255,0.18), transparent 70%);
  pointer-events: none;
}
.banner h3 { margin: 0; font: 800 17px/1.3 'Satoshi', sans-serif; letter-spacing: -0.02em; color: var(--ink); }
.banner p { margin: 6px 0 0; font: 500 13px/1.5 'Satoshi', sans-serif; color: var(--ink-dim); letter-spacing: -0.005em; }
.banner .price {
  font: 800 14px/1 'Satoshi', sans-serif;
  color: var(--blue-deep);
  letter-spacing: -0.02em;
  margin-left: 6px;
  font-variant-numeric: tabular-nums;
}
.banner .cta {
  position: relative; z-index: 1;
  font: 800 14px/1 'Satoshi', sans-serif;
  letter-spacing: -0.01em;
  color: #ffffff;
  background: var(--accent-grad);
  border: none;
  border-radius: var(--radius-pill);
  padding: 14px 22px;
  cursor: pointer;
  box-shadow: 0 6px 16px var(--pink-glow), inset 0 1px 0 rgba(255,255,255,0.3);
}

.banner.vst {
  background:
    radial-gradient(60% 90% at 100% 50%, rgba(90,169,255,0.45) 0%, transparent 60%),
    linear-gradient(135deg, #F7F7FC 0%, #ECEDF6 100%);
  border: 1px solid var(--panel-edge);
}
.banner.vst::after { display: none; }
.banner.vst h3 { display: flex; align-items: center; gap: 10px; }
.banner.vst .ribbon {
  font: 800 10px/1 'Satoshi', sans-serif;
  letter-spacing: 0.04em; color: var(--blue-deep);
  padding: 6px 9px; border: 1px solid rgba(90,169,255,0.3);
  border-radius: 6px;
  background: rgba(255,255,255,0.6);
}
.banner.vst .platforms { display: flex; gap: 8px; }
.banner.vst .platforms .pill {
  font: 700 12px/1 'Satoshi', sans-serif;
  letter-spacing: -0.01em;
  color: var(--ink);
  background: var(--glass-fill-deep);
  border: 1px solid var(--panel-edge);
  padding: 12px 16px;
  border-radius: 12px;
  display: inline-flex; align-items: center; gap: 8px;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.8), 0 2px 6px rgba(20,22,40,0.08);
}
.banner.vst .platforms .pill:hover {
  border-color: rgba(90,169,255,0.35);
  color: var(--blue-deep);
}

/* ── PRO chain ── */
.chain {
  display: flex; align-items: stretch; gap: 6px;
  padding: 14px;
  background: var(--glass-fill);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: 14px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.7), 0 4px 14px rgba(20,22,40,0.08);
}
.chain-link {
  flex: 1;
  display: flex; flex-direction: column; gap: 8px;
  padding: 12px 10px;
  background: rgba(255,255,255,0.7);
  border-radius: 10px;
  border: 1px solid var(--panel-edge);
  position: relative; min-width: 0;
  box-shadow: inset 0 1px 0 #ffffff;
}
.chain-link .lbl {
  font: 800 10px/1 'Satoshi', sans-serif;
  letter-spacing: 0.02em; color: var(--ink-dim);
  display: flex; align-items: center; justify-content: space-between;
}
.chain-link .lbl b { color: var(--ink); font-weight: 800; }
.chain-link .pct { color: var(--blue-deep); font-variant-numeric: tabular-nums; }
.chain-link .meter {
  position: relative; height: 5px;
  background: rgba(20,20,30,0.10);
  border-radius: 999px; overflow: hidden;
}
.chain-link .meter > i {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: linear-gradient(90deg, var(--blue) 0%, #FF4D9D 100%);
  box-shadow: 0 0 6px var(--blue-glow);
  border-radius: inherit;
  transition: width 0.25s ease;
}
.chain-arrow { align-self: center; color: var(--ink-deep); font-size: 10px; }

/* ── PRO detail accordion ── */
.detail-toggle {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px;
  background: var(--glass-fill);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--panel-edge);
  border-radius: 14px;
  cursor: pointer;
  font: 700 13px/1 'Satoshi', sans-serif;
  color: var(--ink);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
}
.detail-toggle .left { display: inline-flex; align-items: center; gap: 10px; }
.detail-toggle .lbl-mono {
  font: 800 11px/1 'Satoshi', sans-serif;
  letter-spacing: 0.02em; color: var(--blue-deep);
  background: var(--blue-bg);
  padding: 5px 8px; border-radius: 6px;
}
.detail-toggle .chev { color: var(--ink-mute); transition: transform 0.15s ease; }
.detail-toggle.open .chev { transform: rotate(180deg); }

.detail-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px;
  padding: 14px;
  background: var(--glass-fill);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: 14px;
}
.fader {
  display: flex; flex-direction: column; gap: 10px;
  padding: 12px 14px;
  background: rgba(255,255,255,0.7);
  border: 1px solid var(--panel-edge);
  border-radius: 12px;
  box-shadow: inset 0 1px 0 #ffffff;
}
.fader .row { display: flex; align-items: baseline; justify-content: space-between; }
.fader .name {
  font: 800 11px/1 'Satoshi', sans-serif;
  color: var(--ink-dim);
}
.fader .v {
  font: 800 14px/1 'Satoshi', sans-serif;
  color: var(--blue-deep); letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.fader .track {
  position: relative; height: 8px;
  background: rgba(20,20,30,0.10);
  border-radius: 999px;
  cursor: pointer;
  box-shadow: inset 0 1px 2px rgba(20,22,40,0.12);
}
.fader .track > i {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: linear-gradient(90deg, var(--blue) 0%, #FF4D9D 100%);
  box-shadow: 0 0 6px var(--blue-glow);
  border-radius: inherit;
}
.fader .track > b {
  position: absolute; top: 50%; transform: translate(-50%, -50%);
  width: 20px; height: 20px; border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 2px 6px rgba(45,110,210,0.25), inset 0 1px 0 #ffffff, 0 0 0 1px rgba(90,169,255,0.15);
}

/* ── STATE SWITCHER / FOOT / AB-LABELS ── */
.state-switcher {
  display: flex; gap: 2px; align-self: center;
  padding: 4px;
  background: var(--glass-fill);
  border: 1px solid var(--panel-edge);
  border-radius: 999px;
  margin-top: -4px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.6);
}
.state-chip {
  appearance: none; cursor: pointer;
  font-family: 'Satoshi', sans-serif;
  font-size: 11px; font-weight: 700; letter-spacing: 0;
  padding: 7px 12px;
  background: transparent;
  color: var(--ink-mute);
  border: none; border-radius: 999px;
  transition: all 0.12s;
}
.state-chip.is-on {
  background: #ffffff;
  color: var(--blue-deep);
  box-shadow: 0 2px 6px rgba(20,22,40,0.18);
}
.fp-foot {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 4px;
  font-family: 'Satoshi', sans-serif; font-size: 11px; font-weight: 600;
  letter-spacing: 0; color: var(--ink-mute);
}
.ab-labels {
  display: flex; justify-content: flex-end; gap: 8px;
  font-family: 'Satoshi', sans-serif; font-size: 10px; font-weight: 700;
  color: var(--ink-mute); letter-spacing: 0;
  margin-top: -8px;
}

/* ── Knob SVG generic classes ── */
.knob { position: relative; display: inline-block; }
.knob-svg { display: block; }
.knob-svg .label-mark { fill: var(--ink-mute); font: 700 10px 'Satoshi', sans-serif; letter-spacing: 0.04em; }

/* ── bk-dome theme visibility ── */
.bk-dome--dark  { display: none; }
.bk-dome--light { display: block; }
[data-theme="dark"] .bk-dome--light { display: none; }
[data-theme="dark"] .bk-dome--dark  { display: block; }

/* ── Theme toggle button ── */
.bf-theme {
  appearance: none; cursor: pointer; border: none;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--surface); color: var(--text);
  display: grid; place-items: center;
  transition: background 0.12s;
  flex-shrink: 0;
}
.bf-theme:hover { background: var(--surface-2); }
.bf-theme svg { width: 18px; height: 18px; }
.bf-theme .moon { display: none; }
[data-theme="dark"] .bf-theme .sun  { display: none; }
[data-theme="dark"] .bf-theme .moon { display: block; }

/* ── bk-arc theme styles (vocal-cleaner 동일) ── */
.bk-arc-glow { filter: blur(1.4px); opacity: 0.55; }
[data-theme="dark"] .bk-arc-glow { opacity: 0.7; }
.bk-arc-core { filter: drop-shadow(0 0 0.8px rgba(255,255,255,0.5)); }
[data-theme="dark"] .bk-arc-core { filter: drop-shadow(0 0 1.2px rgba(168,108,240,0.7)); }
.bk-dot { filter: drop-shadow(0 0 1.2px rgba(255,77,157,0.9)); }

/* ── RESPONSIVE ── */
@media (max-width: 720px) {
  .fp-title h1 { font-size: 30px; }
  .knob-stage { grid-template-columns: 1fr; }
  .knob-flank.l, .knob-flank.r { flex-direction: row; align-items: center; justify-content: center; gap: 18px; text-align: left; }
  .vu { width: 120px; height: 14px; flex-direction: row; }
  .stats { grid-template-columns: 1fr; }
  .chain { flex-direction: column; }
  .chain-arrow { transform: rotate(90deg); }
  .detail-grid { grid-template-columns: 1fr 1fr; }
  .action-row { grid-template-columns: 1fr; }
}

/* ============================================================
   LUFS-SPECIFIC ADDITIONS
   (inherits shared key-speed tokens above)
   ============================================================ */

/* ── Analysis readout card ── */
.lufs-readout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 16px;
  border-radius: 16px;
  background: var(--glass);
  border: 1px solid var(--border);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
}
.lufs-readout .stat { display: flex; flex-direction: column; gap: 2px; }
.lufs-readout .stat-label {
  font: 500 11px/1 'Satoshi', sans-serif;
  opacity: .6;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.lufs-readout .stat-value {
  font: 700 22px/1 'Satoshi', sans-serif;
  background: linear-gradient(90deg, var(--pink), var(--blue));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ── Preset pills ── */
.preset-group { display: flex; gap: 8px; }

.preset-pills { display: flex; gap: 8px; flex-wrap: wrap; }

.preset-pill {
  flex: 1;
  padding: 10px 8px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font: 500 13px/1.3 'Satoshi', sans-serif;
  cursor: pointer;
  text-align: center;
  transition: all .18s ease;
}
.preset-pill small {
  display: block;
  opacity: .55;
  font-size: 11px;
  margin-top: 3px;
}
.preset-pill:hover {
  border-color: color-mix(in srgb, var(--pink) 50%, var(--border));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--pink) 20%, transparent);
}
.preset-pill.active {
  border-color: transparent;
  background: linear-gradient(135deg, var(--pink), var(--blue));
  color: #fff;
  box-shadow: 0 4px 18px rgba(255,77,157,.28);
}

/* ── Knob block ── */
.knob-block { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.knob-block .knob-svg { cursor: grab; touch-action: none; }
.knob-block .knob-svg:active { cursor: grabbing; }
#knobValue { font: 700 18px/1 'Satoshi', sans-serif; color: var(--text); }
.knob-caption {
  font: 500 11px/1 'Satoshi', sans-serif;
  opacity: .55;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.gain-label {
  font-size: 0.8rem;
  color: var(--text-2);
  text-align: center;
}

/* ── Live LUFS meter (vertical bar) ── */
.lufs-meter {
  position: relative;
  width: 54px;
  height: 180px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  overflow: hidden;
}
.lufs-meter .meter-fill {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 0%;
  background: linear-gradient(0deg, var(--blue), var(--pink));
  transition: height .08s linear;
}
.lufs-meter.tier-hot .meter-fill {
  background: linear-gradient(0deg, #ffb347, #ff4d4d);
}
.lufs-meter .meter-scale { position: absolute; inset: 0; pointer-events: none; }
#meterValue {
  font: 700 14px/1 'Satoshi', sans-serif;
  text-align: center;
  margin-top: 6px;
}

/* ── LUFS bar meter (horizontal) ── */
.lufs-bar-track {
  height: 8px;
  background: var(--surface);
  border-radius: 4px;
  overflow: hidden;
}
.lufs-bar {
  height: 100%;
  background: linear-gradient(90deg, #FF4D9D, #5AA9FF);
  border-radius: 4px;
  transition: width 0.1s ease;
}
.lufs-labels {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ── LUFS badge ── */
.lufs-badge { font-variant-numeric: tabular-nums; }

/* ── True-peak warning banner ── */
.tp-warning {
  padding: 10px 14px;
  border-radius: 12px;
  font: 600 13px/1.3 'Satoshi', sans-serif;
  color: #fff;
  background: linear-gradient(135deg, #ff6b35, #ff2e63);
  box-shadow: 0 4px 16px rgba(255,46,99,.3);
}
.tp-warning.hidden { display: none; }

.true-peak-warn {
  display: none;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 6px;
  background: rgba(255,60,60,0.15);
  border: 1px solid rgba(255,60,60,0.4);
  color: #ff6b6b;
  font: 600 12px/1.3 'Satoshi', sans-serif;
}
.true-peak-warn.visible { display: inline-flex; }

/* ── A/B toggle ── */
.ab-toggle {
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font: 600 13px/1 'Satoshi', sans-serif;
  cursor: pointer;
  transition: all .18s ease;
}
.ab-toggle:hover {
  border-color: color-mix(in srgb, var(--pink) 40%, var(--border));
}
.ab-toggle.active {
  border-color: transparent;
  background: linear-gradient(135deg, var(--pink), var(--blue));
  color: #fff;
}
.ab-toggle.ab-original { opacity: 0.6; }

/* ── Export row + spinner ── */
.export-row { display: flex; gap: 10px; }
.export-row .btn-export {
  flex: 1;
  padding: 13px;
  border-radius: 14px;
  font: 700 14px/1 'Satoshi', sans-serif;
  cursor: pointer;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  transition: border-color .18s, box-shadow .18s;
}
.export-row .btn-export:hover {
  border-color: color-mix(in srgb, var(--blue) 50%, var(--border));
}
.export-row .btn-export.primary {
  border: none;
  background: linear-gradient(135deg, var(--pink), var(--blue));
  color: #fff;
  box-shadow: 0 4px 18px rgba(155,92,255,.28);
}
.export-row .btn-export.primary:hover {
  box-shadow: 0 6px 24px rgba(155,92,255,.38);
}
#exportSpinner {
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
#exportSpinner.hidden { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Platform Panel ── */
#platformPanel { display:flex; flex-direction:column; gap:12px; padding:16px 16px 14px; background:var(--surface); border:1px solid var(--border); border-radius:16px; margin-bottom:4px; }
.section-label { font:700 11px/1 'Satoshi',sans-serif; letter-spacing:.08em; text-transform:uppercase; color:var(--dim); }
#loudnessRuler { display:flex; flex-direction:column; gap:7px; }
.ruler-track { position:relative; height:8px; border-radius:999px; background:rgba(128,128,140,0.18); margin:18px 4px 0; }
.ruler-fill { position:absolute; top:0; bottom:0; left:0; width:0; border-radius:999px; background:var(--grad); opacity:0.5; transition:width .2s ease; }
.ruler-you { position:absolute; top:-4px; width:2px; height:16px; background:var(--text); border-radius:1px; transform:translateX(-50%); transition:left .2s ease; display:none; }
.ruler-you .you-flag { position:absolute; top:-15px; left:50%; transform:translateX(-50%); font:700 8px/1 'Satoshi',sans-serif; letter-spacing:.08em; color:var(--text); white-space:nowrap; }
#rulerDots { position:absolute; inset:0; }
.ruler-dot { position:absolute; top:50%; width:11px; height:11px; border-radius:50%; border:2px solid var(--bg); transform:translate(-50%,-50%); cursor:pointer; transition:transform .12s,box-shadow .12s; }
.ruler-dot:hover { transform:translate(-50%,-50%) scale(1.25); }
.ruler-dot.active { box-shadow:0 0 0 3px rgba(155,92,255,0.45); transform:translate(-50%,-50%) scale(1.3); }
.ruler-scale { display:flex; justify-content:space-between; padding:0 2px; }
.ruler-scale span { font:500 9px/1 'Satoshi',sans-serif; color:var(--dim); font-variant-numeric:tabular-nums; }
#platformChips { display:flex; flex-wrap:wrap; gap:6px; }
.plat-chip { appearance:none; cursor:pointer; display:inline-flex; align-items:center; gap:6px; font:700 11px/1 'Satoshi',sans-serif; color:var(--dim); background:var(--surface); border:1px solid var(--border); padding:7px 11px; border-radius:999px; transition:all .15s; }
.plat-chip:hover { color:var(--text); border-color:rgba(155,92,255,0.4); }
.plat-chip.active { color:#9B5CFF; background:rgba(155,92,255,0.14); border-color:rgba(155,92,255,0.45); }
.plat-chip .chip-dot { width:7px; height:7px; border-radius:50%; flex-shrink:0; }
.plat-chip .chip-lufs { opacity:0.65; font-variant-numeric:tabular-nums; }
#platformDiff { font:700 13px/1.4 'Satoshi',sans-serif; color:var(--text); padding-top:2px; }
#platformDiff .diff-up { color:#9B5CFF; }
#platformDiff .diff-down { color:var(--blue,#5AA9FF); }
#platformDiff .diff-ok { color:#1DB954; }

/* ── Predicted Hero card ── */
.predicted-hero{display:flex;flex-direction:column;align-items:center;gap:4px;
  padding:18px 20px;margin:0 0 18px;border-radius:18px;
  background:linear-gradient(135deg,rgba(255,77,157,.10),rgba(155,92,255,.10));
  border:1px solid rgba(155,92,255,.22);}
.predicted-hero .ph-label{font-size:.78rem;color:var(--text-2);letter-spacing:.02em;}
.predicted-hero .ph-main{font-family:'Satoshi',sans-serif;font-weight:800;
  font-size:2.6rem;line-height:1;font-variant-numeric:tabular-nums;
  background:var(--grad,linear-gradient(120deg,#FF4D9D,#9B5CFF));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.predicted-hero .ph-unit{font-size:1rem;margin-left:4px;-webkit-text-fill-color:initial;color:var(--text-2);}
.predicted-hero .ph-sub{font-size:.8rem;color:var(--text-2);}
/* demote old row */
.lufs-readout-row{opacity:.85;font-size:.82rem;}
.lufs-readout-item .ri-val{font-size:.95rem;}

/* ── Knob hint ── */
.knob-hint { min-height:20px; font:600 12px/1.4 "Satoshi",sans-serif; color:var(--pink,#FF4D9D); text-align:center; margin-top:4px; transition:opacity .2s; }
.knob-hint:empty { opacity:0; }
/* ── Hero predicted LUFS ── */
.hero-val { font-size:1.25em; font-weight:800; background:var(--grad,linear-gradient(120deg,#FF4D9D,#5AA9FF)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
/* ── Step guide ── */
.step-guide { display:flex; gap:8px; flex-wrap:wrap; margin-bottom:12px; }
.step-item { display:flex; align-items:center; gap:5px; font:600 11px/1 "Satoshi",sans-serif; color:var(--dim); }
.step-num { width:18px; height:18px; border-radius:50%; background:var(--surface); border:1px solid var(--border); display:flex; align-items:center; justify-content:center; font-size:9px; font-weight:800; flex-shrink:0; }
.step-item.active .step-num { background:var(--grad); color:#fff; border-color:transparent; }
.step-item.done .step-num { background:#1DB954; color:#fff; border-color:transparent; }

/* ── LUFS REDESIGN: align with vocal-cleaner identity ── */

/* Fix blue token to match vocal-cleaner (#9B5CFF purple) */
:root {
  --blue-deep: #9B5CFF;
}

/* Readout clean layout */
.readouts-clean {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 12px 0 4px;
}
.readout-hero {
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.readout-big {
  font: 800 2.8rem/1 'Satoshi', sans-serif;
  font-variant-numeric: tabular-nums;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.readout-unit {
  font: 700 0.85rem/1 'Satoshi', sans-serif;
  color: var(--dim);
}
.readout-label {
  font: 700 10px/1 'Satoshi', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--dim);
  margin-right: 4px;
}
.readout-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font: 600 13px/1 'Satoshi', sans-serif;
  font-variant-numeric: tabular-nums;
  color: var(--dim);
}
.readout-sublabel {
  font-size: 10px;
  display: block;
  margin-bottom: 2px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.readout-item { text-align: center; }
.readout-item.grad span:last-child { color: var(--pink); }
.readout-arrow { opacity: 0.4; }
.readout-sep { opacity: 0.2; }

/* True Peak warning - compact */
.tp-warn {
  font: 600 11px/1.4 'Satoshi', sans-serif;
  color: #ff6b6b;
  background: rgba(255, 60, 60, 0.1);
  border: 1px solid rgba(255, 60, 60, 0.25);
  border-radius: 6px;
  padding: 5px 10px;
  text-align: center;
}
.tp-warn.hidden { display: none; }

/* Inline meter bar */
.meter-inline {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 0;
  opacity: 0.7;
}
.meter-inline-track {
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: var(--border);
  overflow: hidden;
}
.meter-inline-fill {
  height: 100%;
  width: 0%;
  border-radius: 2px;
  background: var(--grad);
  transition: width 0.1s;
}
.meter-inline-val {
  font: 600 11px/1 'Satoshi', sans-serif;
  font-variant-numeric: tabular-nums;
  color: var(--dim);
  min-width: 52px;
  text-align: right;
}

/* Export buttons */
.export-actions {
  display: flex;
  gap: 8px;
  align-items: stretch;
}
.btn-export-primary {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 14px 20px;
  border-radius: 999px;
  border: none;
  background: var(--grad);
  color: #fff;
  font: 700 14px/1 'Satoshi', sans-serif;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.12s;
}
.btn-export-primary:hover:not(:disabled) { opacity: 0.9; transform: translateY(-1px); }
.btn-export-primary:active:not(:disabled) { transform: scale(0.98); }
.btn-export-primary:disabled { opacity: 0.38; cursor: not-allowed; }

.btn-export-secondary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 14px 18px;
  border-radius: 999px;
  border: 1px solid var(--border-2);
  background: transparent;
  color: var(--text);
  font: 700 13px/1 'Satoshi', sans-serif;
  cursor: pointer;
  transition: background 0.15s, transform 0.12s;
}
.btn-export-secondary:hover:not(:disabled) { background: var(--surface-2); }
.btn-export-secondary:disabled { opacity: 0.38; cursor: not-allowed; }

/* Platform panel: remove ruler, keep chips + diff */
#loudnessRuler { display: none !important; }
.section-label { margin-bottom: 8px; }
#platformPanel { gap: 8px; padding: 12px 14px; }

/* Knob hint styling */
.knob-hint { min-height: 18px; margin-top: 2px; }
