/* Keyboard Checker — main styles */
[hidden] { display: none !important; }

.kc-container {
  --primary: #00f0ff;
  --primary-soft: rgba(0, 240, 255, 0.18);
  max-width: 1180px;
  padding-top: 40px;
}

.back-link { display: inline-block; font-size: 0.9rem; color: var(--text-muted); margin-bottom: 24px; transition: color 0.2s ease; }
.back-link:hover { color: var(--accent); }

.kc-hero { margin-bottom: 32px; }
.kc-hero h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.kc-hero .tagline { font-size: 0.95rem; }

.kc-pill {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--bg-elev); color: var(--text-muted);
  border: 1px solid var(--border); padding: 7px 12px;
  font: inherit; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.06em;
  cursor: pointer; border-radius: 6px;
  transition: all 0.15s ease;
}
.kc-pill:hover { color: var(--text); border-color: var(--primary); }
.kc-pill.is-on { color: var(--primary); border-color: var(--primary); background: var(--primary-soft); }

.kc-toolbar {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px; margin-bottom: 16px;
}

.kc-segment {
  display: inline-flex; background: var(--bg);
  border: 1px solid var(--border); padding: 2px; border-radius: 6px;
}
.kc-segment button {
  background: transparent; border: 1px solid transparent; color: var(--text-muted);
  font: inherit; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.06em;
  padding: 6px 12px; cursor: pointer; border-radius: 4px;
  transition: all 0.15s ease;
}
.kc-segment button:hover { color: var(--text); }
.kc-segment button.is-on { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); }

.kc-lighting-wrap { position: relative; }
.kc-lighting-menu {
  position: absolute; top: calc(100% + 8px); right: 0;
  background: var(--bg-elev); border: 1px solid var(--border);
  padding: 14px; min-width: 240px; z-index: 40; border-radius: 8px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.5);
}
.kc-lighting-section + .kc-lighting-section { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--border); }
.kc-lighting-label { font-size: 0.72rem; color: var(--text-muted); margin-bottom: 8px; letter-spacing: 0.08em; }
.kc-color-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.kc-color-cell { width: 100%; aspect-ratio: 1/1; border: 2px solid var(--border); cursor: pointer; padding: 0; border-radius: 4px; }
.kc-color-cell:hover { transform: scale(1.08); }
.kc-color-cell.is-on { border-color: var(--text); box-shadow: 0 0 0 2px var(--bg-elev), 0 0 0 4px var(--primary); }
.kc-color-pick {
  display: flex; align-items: center; gap: 8px;
  border: 1px solid var(--border); background: var(--bg);
  padding: 6px 10px; cursor: pointer; position: relative; border-radius: 6px;
  font-size: 0.82rem; color: var(--text-muted);
}
.kc-color-pick:hover { border-color: var(--primary); }
.kc-color-pick-swatch { width: 18px; height: 18px; border: 1px solid var(--border); display: inline-block; background: var(--primary); border-radius: 3px; }
.kc-color-pick input[type="color"] { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.kc-stage {
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px; margin-bottom: 16px;
  overflow-x: auto; overflow-y: hidden;
  display: flex; justify-content: center;
}
.kc-board { display: flex; gap: 24px; align-items: flex-end; flex-shrink: 0; }
.kc-section { display: flex; flex-direction: column; gap: 10px; }
.kc-row { display: grid; gap: 4px; }
.kc-row.is-fkey { margin-bottom: 14px; }

.key {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  height: 38px; padding: 4px 6px;
  background: #111c2a; border: 1px solid #2d4a63; color: #aabbcc;
  font-family: 'JetBrains Mono', monospace; font-size: 10px; font-weight: 700;
  letter-spacing: 0.04em; text-transform: uppercase; text-align: center;
  border-radius: 3px;
  position: relative; overflow: hidden;
  transition: transform 75ms ease, color 75ms ease, border-color 75ms ease;
  user-select: none;
}
.key.is-disabled { opacity: 0.35; }
.key.is-tall { height: 80px; grid-row: span 2; }
.key.is-knob {
  background: radial-gradient(circle at 40% 35%, #2a3a4a, #0d1a26);
  border-radius: 50%; width: 38px; height: 38px;
  border: 2px solid var(--primary);
  box-shadow: 0 0 8px color-mix(in srgb, var(--primary) 30%, transparent);
}
.key.is-knob::after {
  content: ''; position: absolute; top: 6px; left: 50%; transform: translateX(-50%);
  width: 4px; height: 4px; background: var(--primary); border-radius: 50%;
}
.key.is-registered {
  border-color: color-mix(in srgb, var(--primary) 60%, transparent);
  background: color-mix(in srgb, var(--primary) 8%, #111c2a);
  color: color-mix(in srgb, var(--primary) 80%, white);
  box-shadow: 0 0 4px color-mix(in srgb, var(--primary) 30%, transparent);
}
.key.is-pressed {
  border-color: var(--primary);
  background: color-mix(in srgb, var(--primary) 25%, #0d1a26);
  color: var(--primary);
  box-shadow: 0 0 12px color-mix(in srgb, var(--primary) 60%, transparent),
              inset 0 0 8px color-mix(in srgb, var(--primary) 30%, transparent);
  transform: translateY(2px) scale(0.97);
}
.key-sub { position: absolute; top: 2px; right: 4px; font-size: 8px; opacity: 0.6; font-weight: 400; }
.key-icon { font-size: 14px; }

.kc-cluster-nav { display: flex; gap: 4px; }
.kc-cluster-nav .key { width: 36px; height: 32px; flex: none; padding: 2px 4px; }
.kc-arrows { display: grid; grid-template-columns: repeat(3, 32px); grid-template-rows: 32px 32px; gap: 4px; margin-top: 8px; }
.kc-arrows .key { height: 32px; }
.kc-arrows .arrow-up { grid-column: 2; }
.kc-arrows .arrow-left { grid-column: 1; grid-row: 2; }
.kc-arrows .arrow-down { grid-column: 2; grid-row: 2; }
.kc-arrows .arrow-right { grid-column: 3; grid-row: 2; }

.kc-numpad { display: grid; grid-template-columns: repeat(16, 1fr); gap: 4px; align-self: flex-end; }

.kc-hud {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 18px;
}
.kc-hud-left, .kc-hud-right { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.kc-hud-cell, .kc-hud-metric { display: flex; flex-direction: column; gap: 2px; }
.kc-hud-metric { flex-direction: row; align-items: baseline; gap: 8px; }
.kc-hud-label { font-family: 'JetBrains Mono', monospace; font-size: 10px; color: var(--text-muted); letter-spacing: 0.1em; text-transform: uppercase; }
.kc-hud-status { color: var(--success); font-size: 0.78rem; font-weight: 600; }
.kc-hud-value { font-size: 0.85rem; font-weight: 700; }
.kc-hud-value-mono { font-family: 'JetBrains Mono', monospace; font-size: 0.78rem; color: var(--text-muted); }
.kc-hud-metric-val { font-size: 1.05rem; font-weight: 700; min-width: 48px; text-align: right; font-family: 'JetBrains Mono', monospace; }
.accent-success { color: var(--success); }
.accent-magenta { color: #ff00e6; }