/* Aurora WebGL Background & Translucent Surface Luminance */

#aurora {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  display: block;
  pointer-events: none;
}

html {
  background-color: var(--md-sys-color-surface-container-low);
}

body,
.app-shell,
#top-bar-volume-row,
.top-app-bar .control-row.has-rotary-dial {
  background: transparent !important;
  background-color: transparent !important;
  border: none !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.top-app-bar {
  background-color: transparent !important;
  border: none !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  transition: background-color 0.2s ease, backdrop-filter 0.2s ease, -webkit-backdrop-filter 0.2s ease;
}

.top-app-bar.is-scrolled,
body.is-scrolled .top-app-bar {
  background-color: color-mix(in srgb, var(--md-sys-color-surface-container-lowest) 92%, transparent) !important;
  backdrop-filter: blur(18px) !important;
  -webkit-backdrop-filter: blur(18px) !important;
}

.startup-play-banner,
.preset-strip-card,
.surface-card,
.research-card,
.research-homage-banner {
  background-color: color-mix(in srgb, var(--md-sys-color-surface-container-lowest) 76%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.nested-card,
.voice-card,
.degree-column,
.event-log-item {
  background-color: color-mix(in srgb, var(--md-sys-color-surface-container) 74%, transparent);
}

.canvas-stage-wrapper {
  background-color: color-mix(in srgb, var(--md-sys-color-surface-container) 45%, transparent);
}

/* Startup Play Banner (Covers Top Bar & Presets Panel on Initial Load) */
.app-shell {
  position: relative;
}

body.startup-banner-active .top-app-bar,
body.startup-banner-active .preset-strip-card,
.app-shell.startup-banner-active .top-app-bar,
.app-shell.startup-banner-active .preset-strip-card {
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

.startup-play-banner {
  position: absolute;
  top: 8px;
  left: 20px;
  right: 20px;
  max-width: 1400px;
  margin: 0 auto;
  min-height: 112px;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 20px;
  background-color: color-mix(in srgb, var(--md-sys-color-surface-container-lowest) 76%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: none;
  box-shadow: none;
  cursor: pointer;
  user-select: none;
  transition: opacity 0.24s cubic-bezier(0.22, 1, 0.36, 1), transform 0.24s cubic-bezier(0.22, 1, 0.36, 1), visibility 0.24s;
}

.startup-play-banner.is-dismissed,
body:not(.startup-banner-active) .startup-play-banner {
  display: none !important;
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
  transform: scale(0.99);
}

.startup-play-btn {
  height: 54px;
  padding: 0 32px;
  border-radius: 9999px;
  gap: 10px;
  font-family: var(--md-ref-typeface-brand);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  background-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  border: none;
  box-shadow: none;
  transition: transform 0.16s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.16s ease;
}

.startup-play-btn .startup-play-icon,
.startup-play-btn .material-symbols-outlined {
  font-size: 24px;
}

@media (hover: hover) {
  .startup-play-banner:hover .startup-play-btn,
  .startup-play-btn:hover {
    transform: scale(1.03);
    opacity: 0.94;
  }
}

@media (max-width: 1280px) {
  .startup-play-banner {
    left: 16px;
    right: 16px;
    border-radius: 20px;
  }
}

@media (max-width: 720px) {
  .startup-play-banner {
    left: 12px;
    right: 12px;
    min-height: 220px;
    border-radius: 18px;
  }
  .startup-play-btn {
    height: 48px;
    padding: 0 26px;
    font-size: 15.5px;
    gap: 8px;
  }
  .startup-play-btn .startup-play-icon,
  .startup-play-btn .material-symbols-outlined {
    font-size: 22px;
  }
}

/* First-Play Onboarding Callout Banner Pointing at Patches Tab (Inverted GM3 Surface) */
.patches-onboarding-banner {
  position: absolute;
  top: 124px;
  left: 20px;
  z-index: 55;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px 6px 12px;
  border-radius: 16px;
  background-color: var(--md-sys-color-inverse-surface);
  color: var(--md-sys-color-inverse-on-surface);
  border: none;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.24);
  max-width: calc(100vw - 24px);
  transition: opacity 0.22s cubic-bezier(0.22, 1, 0.36, 1), transform 0.22s cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="dark"] .patches-onboarding-banner {
  background-color: var(--md-sys-color-inverse-surface);
  color: var(--md-sys-color-inverse-on-surface);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.48);
}

.patches-onboarding-banner::before {
  content: '';
  position: absolute;
  top: -6px;
  left: var(--pointer-left, 44px);
  width: 12px;
  height: 12px;
  background-color: var(--md-sys-color-inverse-surface);
  transform: rotate(45deg);
  border-radius: 2px;
  pointer-events: none;
}

.patches-onboarding-banner:not(.is-visible),
body.startup-banner-active .patches-onboarding-banner {
  display: none !important;
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
  transform: translateY(-4px);
}

.patches-onboarding-arrow-badge {
  width: 28px;
  height: 28px;
  border-radius: 9999px;
  background-color: var(--md-sys-color-inverse-primary);
  color: var(--md-sys-color-on-primary-container);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

[data-theme="dark"] .patches-onboarding-arrow-badge {
  background-color: var(--md-sys-color-inverse-primary);
  color: var(--md-sys-color-on-primary-container);
}

.patches-onboarding-arrow-badge .material-symbols-outlined {
  font-size: 18px;
}

.patches-onboarding-text {
  font-family: var(--md-ref-typeface-plain, 'Inter', sans-serif);
  font-size: 13.5px;
  font-weight: 500;
  line-height: 1.35;
  color: var(--md-sys-color-inverse-on-surface);
  font-variant-numeric: tabular-nums;
}

.patches-onboarding-close-btn {
  width: 40px;
  height: 40px;
  min-width: 40px;
  min-height: 40px;
  border-radius: 9999px;
  color: var(--md-sys-color-inverse-on-surface);
  flex-shrink: 0;
}

@media (hover: hover) {
  .patches-onboarding-close-btn:hover {
    background-color: color-mix(in srgb, var(--md-sys-color-inverse-on-surface) 14%, transparent);
  }
}