/* Leafmusic v2 — operator-panel design language with mint accent */
@import url('https://fonts.googleapis.com/css2?family=Inter+Tight:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&family=Pretendard:wght@400;500;600;700&display=swap');

:root {
  /* Surfaces — flat, no gradients */
  --bg:        #0A0A0B;
  --bg-elev:   #111113;
  --bg-elev2:  #161618;
  --bg-hover:  #1B1B1E;
  --bg-active: #1F1F23;
  --bg-card:   #0F0F11;

  --border:        rgba(255,255,255,0.06);
  --border-2:      rgba(255,255,255,0.09);
  --border-3:      rgba(255,255,255,0.12);
  --border-strong: rgba(255,255,255,0.22);

  /* Foreground */
  --fg:        #F5F5F4;
  --fg-2:      #E2E2E0;
  --fg-3:      #C7C7C4;
  --fg-muted:  #8B8B88;
  --fg-faint:  #5A5A57;

  /* Single accent — leaf mint */
  --accent:     #C2F542;    /* sharp lime */
  --accent-2:   #A3E635;
  --accent-dim: #6B7F1E;
  --accent-bg:  rgba(194, 245, 66, 0.08);
  --accent-bd:  rgba(194, 245, 66, 0.25);

  /* Signal colors — used very sparingly */
  --info:    #6BA3FF;
  --warn:    #F2B14A;
  --alert:   #FF6B5A;

  /* Type */
  --font-sans: 'Inter Tight', 'Pretendard', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

/* Reset and base */
* { box-sizing: border-box; }
.frame {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.005em;
  position: relative;
  overflow: hidden;
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

/* Eyebrow / mono label */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-faint);
}
.eyebrow-accent {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

/* Live dot with glow */
.dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  display: inline-block;
}
.dot-sm {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
  display: inline-block;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: background 120ms, border-color 120ms;
  letter-spacing: -0.005em;
}
.btn-primary {
  background: var(--fg);
  color: var(--bg);
  font-weight: 600;
}
.btn-primary:hover { background: #fff; }
.btn-accent {
  background: var(--accent);
  color: var(--bg);
  font-weight: 600;
}
.btn-accent:hover { background: var(--accent-2); }
.btn-ghost {
  background: var(--bg-elev2);
  border-color: var(--border-3);
  color: var(--fg-2);
}
.btn-ghost:hover { background: var(--bg-hover); border-color: var(--border-strong); }
.btn-line {
  background: transparent;
  border-color: var(--border-3);
  color: var(--fg-2);
}
.btn-line:hover { border-color: var(--border-strong); color: var(--fg); }

/* Card */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--bg-active);
  border-radius: 10px;
}
.card-flat {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
}

/* Icon container */
.icon-box {
  width: 32px; height: 32px;
  border-radius: 7px;
  background: var(--bg-elev2);
  border: 1px solid var(--border-3);
  display: grid;
  place-items: center;
  color: var(--accent);
  flex-shrink: 0;
}
.icon-box-sm {
  width: 26px; height: 26px;
  border-radius: 6px;
  background: var(--bg-elev2);
  border: 1px solid var(--border-3);
  display: grid;
  place-items: center;
  color: var(--accent);
  flex-shrink: 0;
}

/* Tag chip */
.chip {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-3);
  background: var(--bg-hover);
  border: 1px solid var(--border-2);
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
  flex-shrink: 0;
}
.chip-accent {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent);
  background: var(--accent-bg);
  border: 1px solid var(--accent-bd);
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
  flex-shrink: 0;
}
.eyebrow, .eyebrow-accent { white-space: nowrap; }

/* Sliders */
.slider-track {
  height: 3px;
  background: var(--bg-hover);
  position: relative;
  border-radius: 2px;
  overflow: hidden;
  cursor: pointer;
}
.slider-fill {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  background: var(--fg);
  border-radius: 2px;
}
.slider-fill-accent { background: var(--accent); }

/* Range input — styled to match Slider component */
input[type="range"].lm-range {
  -webkit-appearance: none;
  appearance: none;
  height: 3px;
  background: var(--bg-hover);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
  border: 0;
  padding: 0;
}
input[type="range"].lm-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 0 0 2px rgba(194,245,66,0.25);
  transition: box-shadow 120ms;
}
input[type="range"].lm-range::-webkit-slider-thumb:hover {
  box-shadow: 0 0 0 4px rgba(194,245,66,0.3);
}
input[type="range"].lm-range::-moz-range-thumb {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 0;
  cursor: pointer;
}
input[type="range"].lm-range::-webkit-slider-runnable-track {
  background: linear-gradient(to right, var(--accent) var(--pct, 50%), var(--bg-hover) var(--pct, 50%));
  border-radius: 2px;
  height: 3px;
}

/* Form inputs */
input.field, textarea.field, select.field {
  background: var(--bg-elev2);
  border: 1px solid var(--border-2);
  color: var(--fg);
  border-radius: 6px;
  padding: 9px 12px;
  font-size: 13px;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 120ms;
}
input.field:focus, textarea.field:focus, select.field:focus {
  border-color: var(--accent-bd);
}

/* Scrollbar */
.scroll-region::-webkit-scrollbar { width: 8px; height: 8px; }
.scroll-region::-webkit-scrollbar-track { background: transparent; }
.scroll-region::-webkit-scrollbar-thumb {
  background: var(--bg-hover);
  border-radius: 4px;
}
.scroll-region::-webkit-scrollbar-thumb:hover { background: var(--bg-active); }

/* Animation: blink for caret */
@keyframes caret-blink { 0%,100%{opacity:1} 50%{opacity:0} }
.caret { animation: caret-blink 1.1s infinite; }

/* Spin for playing album */
@keyframes lm-spin { from { transform: rotate(0deg) } to { transform: rotate(360deg) } }
.spin-playing { animation: lm-spin 8s linear infinite; }
.spin-paused  { animation: lm-spin 8s linear infinite; animation-play-state: paused; }

/* Live dot pulse */
@keyframes lm-pulse {
  0%,100% { box-shadow: 0 0 8px var(--accent), 0 0 0 0 rgba(194,245,66,0); }
  50%     { box-shadow: 0 0 14px var(--accent), 0 0 0 6px rgba(194,245,66,0.05); }
}
.dot-pulse { animation: lm-pulse 2.4s ease-in-out infinite; }

/* Equalizer bars (3 bars) — pulses when playing */
@keyframes lm-eq-1 { 0%,100% { height: 30%; } 50% { height: 90%; } }
@keyframes lm-eq-2 { 0%,100% { height: 60%; } 50% { height: 40%; } }
@keyframes lm-eq-3 { 0%,100% { height: 80%; } 50% { height: 25%; } }

/* Fade-in for splash */
@keyframes lm-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: lm-fade-in 480ms ease-out both; }

/* Animation: meter pulse */
@keyframes meter-flicker {
  0%,100% { opacity: 1 }
  50% { opacity: 0.85 }
}

/* Hover row for tables */
.row-hover { transition: background 100ms; cursor: pointer; }
.row-hover:hover { background: var(--bg-hover); }

/* Nav link */
.nav-link {
  font-size: 12.5px;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  color: var(--fg-muted);
  border: 1px solid transparent;
  transition: background 120ms, color 120ms, border-color 120ms;
  user-select: none;
}
.nav-link:hover { color: var(--fg-2); background: var(--bg-hover); }
.nav-link-active {
  color: var(--fg);
  background: var(--bg-active);
  border-color: var(--border-2);
}

/* Side rail item */
.rail-item {
  width: 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 9px 0;
  color: var(--fg-muted);
  cursor: pointer;
  border-radius: 7px;
  position: relative;
  transition: background 120ms, color 120ms;
  user-select: none;
}
.rail-item:hover { background: var(--bg-hover); color: var(--fg-2); }
.rail-item-active { color: var(--fg); background: var(--bg-active); }
.rail-item-active::before {
  content: '';
  position: absolute;
  left: -10px;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background: var(--accent);
}

/* Tab */
.tab {
  padding: 11px 12px;
  font-size: 11px;
  font-family: var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-muted);
  border-bottom: 1px solid transparent;
  margin-bottom: -1px;
  cursor: pointer;
  user-select: none;
  transition: color 120ms;
}
.tab:hover { color: var(--fg-2); }
.tab-active {
  color: var(--fg);
  border-bottom-color: var(--accent);
}

/* Subtle dotted divider */
.divider-dotted {
  border: 0;
  border-top: 1px dashed var(--border-2);
}

/* Striped placeholder for media */
.placeholder-stripes {
  background-color: var(--bg-elev2);
  background-image: repeating-linear-gradient(135deg, rgba(255,255,255,0.025) 0 1px, transparent 1px 7px);
}

/* Big numerals */
.numeral-lg {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.6px;
}