/* Keyboard shortcuts HUD */

:root {
  --shortcuts-hud-dim-opacity: 0.42;
  --shortcuts-hud-active-opacity: 1;
  --shortcuts-hud-bg: rgba(18, 18, 22, 0.92);
  --shortcuts-hud-border: rgba(255, 255, 255, 0.14);
  --shortcuts-hud-fg: rgba(255, 255, 255, 0.94);
  --shortcuts-hud-muted: rgba(255, 255, 255, 0.55);
  --shortcuts-hud-kbd-bg: rgba(255, 255, 255, 0.07);
  --shortcuts-hud-kbd-border: rgba(255, 255, 255, 0.2);
}

.shortcuts-hud {
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 12px;
  color: var(--shortcuts-hud-fg);
  opacity: var(--shortcuts-hud-dim-opacity);
  transition: opacity 150ms ease;
}

.shortcuts-hud:hover,
.shortcuts-hud:focus-within,
.shortcuts-hud.is-open {
  opacity: var(--shortcuts-hud-active-opacity);
}

.shortcuts-hud.is-hidden {
  display: none;
}

.shortcuts-hud--waterfall {
  position: fixed;
  left: 16px;
  top: calc(var(--transport-topbar-height, 60px) + var(--transport-progress-height, 45px) + 8px);
  z-index: 13;
  pointer-events: auto;
}

.shortcuts-hud--editor {
  position: relative;
  display: inline-flex;
  vertical-align: middle;
  margin: 0 6px;
}

.shortcuts-hud--topbar {
  position: relative;
  left: auto;
  top: auto;
  z-index: 5;
  opacity: 1;
  display: inline-flex;
  align-items: center;
  pointer-events: auto;
}

.shortcuts-hud__summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--shortcuts-hud-bg);
  color: var(--shortcuts-hud-fg);
  border: 1px solid var(--shortcuts-hud-border);
  border-radius: 8px;
  cursor: pointer;
  font: inherit;
  font-weight: 500;
  line-height: 1.2;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06) inset;
}

.shortcuts-hud--topbar .shortcuts-hud__summary {
  height: var(--control-h-lg);
  padding: 0 var(--space-3);
  background: transparent;
  border-color: transparent;
  border-radius: var(--radius-lg);
  gap: var(--space-2);
}

.shortcuts-hud__summary:hover {
  background: rgba(30, 30, 36, 0.92);
}

.shortcuts-hud--topbar .shortcuts-hud__summary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.shortcuts-hud__icon {
  font-size: 11px;
  opacity: 0.85;
}

.shortcuts-hud__chevron {
  font-size: 10px;
  transition: transform 150ms ease;
}

.shortcuts-hud.is-open .shortcuts-hud__chevron {
  transform: rotate(180deg);
}

.shortcuts-hud__panel {
  display: none;
  position: absolute;
  background: var(--shortcuts-hud-bg);
  border: 1px solid var(--shortcuts-hud-border);
  border-radius: 10px;
  padding: 12px 14px;
  min-width: 248px;
  max-width: min(320px, calc(100vw - 28px));
  max-height: 60vh;
  overflow-y: auto;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(0, 0, 0, 0.2) inset;
  pointer-events: none;
}

.shortcuts-hud.is-open .shortcuts-hud__panel {
  display: block;
}

.shortcuts-hud--waterfall .shortcuts-hud__panel {
  top: calc(100% + 6px);
  left: 0;
  max-height: min(60vh, calc(100vh - var(--transport-topbar-height, 60px) - var(--transport-progress-height, 45px) - var(--keyboard-height, 150px) - var(--statusbar-height, 40px) - 48px));
  pointer-events: auto;
}

body.mixer-open .shortcuts-hud--waterfall .shortcuts-hud__panel {
  pointer-events: none;
}

body.mixer-open .shortcuts-hud__panel--waterfall {
  pointer-events: none;
}

.shortcuts-hud__panel--portal {
  position: fixed;
  top: var(--shortcuts-hud-panel-top, calc(var(--transport-topbar-height, 60px) + 6px));
  left: var(--shortcuts-hud-panel-left, 10px);
  width: var(--shortcuts-hud-panel-width, min(320px, calc(100vw - 20px)));
  max-width: min(320px, calc(100vw - 20px));
  z-index: 1200;
  pointer-events: auto;
}

.shortcuts-hud__panel--portal.is-open {
  display: block;
}

.shortcuts-hud__panel--portal.is-hidden {
  display: none;
}

.shortcuts-hud__panel--topbar {
  max-height: min(60vh, calc(100vh - var(--transport-topbar-height, 60px) - var(--statusbar-height, 40px) - 36px));
}

.shortcuts-hud--editor .shortcuts-hud__panel {
  top: calc(100% + 6px);
  left: 0;
  max-height: min(60vh, calc(100vh - 56px));
  z-index: 10;
}

.hud-section + .hud-section {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hud-section-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--shortcuts-hud-muted);
  margin-bottom: 8px;
}

.shortcuts-hud__panel ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.hud-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 5px 0;
  line-height: 1.4;
  border-radius: 4px;
}

.hud-row + .hud-row {
  margin-top: 1px;
}

.hud-chord {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  flex: 0 0 auto;
}

.hud-label {
  color: var(--shortcuts-hud-fg);
  text-align: right;
  flex: 1 1 auto;
  font-size: 12px;
  font-weight: 500;
}

.hud-plus {
  color: var(--shortcuts-hud-muted);
  font-size: 10px;
  margin: 0 1px;
}

.shortcuts-hud kbd {
  display: inline-block;
  background: var(--shortcuts-hud-kbd-bg);
  border: 1px solid var(--shortcuts-hud-kbd-border);
  border-radius: 5px;
  padding: 2px 7px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  font-weight: 600;
  color: var(--shortcuts-hud-fg);
  min-width: 18px;
  text-align: center;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.25);
}

@media (max-width: 520px) {
  .shortcuts-hud--waterfall {
    left: 10px;
    top: calc(var(--transport-topbar-height, 60px) + var(--transport-progress-height, 45px) + 6px);
  }

  .shortcuts-hud--topbar {
    left: auto;
    top: auto;
  }

  .shortcuts-hud--topbar .shortcuts-hud__title {
    display: none;
  }
}