/* ==========================================================================
   ONBOARDING — Progressive Spotlight
   Extracted from styles.css to keep onboarding self-contained.
   ========================================================================== */

:root {
  /* Shared onboarding chip theme (hint + tooltip) */
  --onboarding-chip-bg: var(--color-gray-200);
  --onboarding-chip-color: var(--color-gray-750);
  --onboarding-chip-border: 1px solid rgba(0, 0, 0, 0.12);
}

/* Whisper animation — gentle scale pulse to draw attention */
@keyframes whisper {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.04);
  }
}

.is-whisper {
  animation: whisper 2s ease-in-out infinite;
}

/* Shared transition for all dimmable sections (only during active onboarding) */
:root[data-onboarding]:not([data-onboarding='graduated'])
  :is(.topbar, .track-container, .mode-switch, .surface, .pads, .loop-rack, .control-strip) {
  transition: opacity var(--transition-slower);
}

:root[data-onboarding]:not([data-onboarding='graduated']) {
  --onboarding-dim: 0.35;
  --onboarding-soft: 0.5;
}

/* --- UNDISCOVERED: spotlight the surface --- */
:root[data-onboarding='undiscovered'] :is(.topbar, .track-container, .mode-switch, .pads) {
  opacity: var(--onboarding-dim);
}
:root[data-onboarding='undiscovered'] .surface {
  box-shadow: 0 0 0 2px var(--accentPrimary);
}

/* --- FIRST_GESTURE: spotlight pads --- */
:root[data-onboarding='first_gesture'] :is(.topbar, .track-container, .mode-switch) {
  opacity: var(--onboarding-dim);
}
:root[data-onboarding='first_gesture'] .surface {
  opacity: var(--onboarding-soft);
}

/* --- FIRST_RECORDING: spotlight track list --- */
:root[data-onboarding='first_recording'] :is(.topbar, .mode-switch, .pads) {
  opacity: var(--onboarding-dim);
}
:root[data-onboarding='first_recording'] .surface {
  opacity: var(--onboarding-soft);
}

/* --- TRACK_EXPLORED: spotlight mode switch --- */
:root[data-onboarding='track_explored'] :is(.topbar, .track-container, .pads) {
  opacity: var(--onboarding-dim);
}
:root[data-onboarding='track_explored'] .surface {
  opacity: var(--onboarding-soft);
}

/* --- MODE_EXPLORED: spotlight the pads --- */
:root[data-onboarding='mode_explored'] :is(.topbar, .track-container, .mode-switch) {
  opacity: var(--onboarding-dim);
}
:root[data-onboarding='mode_explored'] .surface {
  box-shadow: 0 0 0 2px var(--accentPrimary);
}

/* --- RECORDING sub-phase: spotlight surface so user knows to drag --- */
:root[data-onboarding-phase='recording'] .surface {
  /* !important needed: recording phase must override any milestone dimming */
  opacity: 1 !important;
  box-shadow: 0 0 0 2px var(--accentPrimary);
}

/* --- SETTINGS_EXPLORED: spotlight pad settings --- */
:root[data-onboarding='settings_explored'] :is(.topbar, .track-container, .mode-switch) {
  opacity: var(--onboarding-dim);
}
:root[data-onboarding='settings_explored'] .surface {
  opacity: var(--onboarding-soft);
}

/* --- SETTINGS_NUDGE: spotlight pad settings drawer --- */
:root[data-onboarding='settings_nudge'] :is(.topbar, .track-container, .mode-switch) {
  opacity: var(--onboarding-dim);
}
:root[data-onboarding='settings_nudge'] .surface {
  opacity: var(--onboarding-soft);
}

/* --- RECORDING_NUDGE: spotlight the Rec button --- */
:root[data-onboarding='recording_nudge'] :is(.topbar, .track-container, .mode-switch) {
  opacity: var(--onboarding-dim);
}
:root[data-onboarding='recording_nudge'] :is(.surface, .loop-rack) {
  opacity: var(--onboarding-soft);
}

/* --- GRADUATED: no rules needed (default full opacity) --- */

/* --- Tutorial-mode hint theme (match tooltip) --- */
:root[data-onboarding]:not([data-onboarding='graduated']) .hint__container {
  background: var(--onboarding-chip-bg);
  border: var(--onboarding-chip-border);
  border-radius: var(--radius-sm);
}

:root[data-onboarding]:not([data-onboarding='graduated']) .hint__loading,
:root[data-onboarding]:not([data-onboarding='graduated']) .hint__ready {
  color: var(--onboarding-chip-color);
}

:root[data-onboarding]:not([data-onboarding='graduated']) .hint__tutorial {
  display: none;
}

/* Help button — matches purchase button style */
.help-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--pad-sm);
  height: calc(var(--space-xl) + var(--space-xs));
  border-radius: var(--radius-sm);
  border: 0;
  background: var(--accentPrimary);
  color: var(--color-black);
  cursor: pointer;
  flex-shrink: 0;
  margin-left: auto;
  margin-bottom: var(--space-3xs);
  transition:
    background var(--transition-slow),
    transform var(--transition-base);
}

.help-btn .material-symbols-outlined {
  font-size: 1.75rem;
  font-variation-settings:
    'FILL' 0,
    'wght' 400,
    'GRAD' 0,
    'opsz' 24;
  color: var(--color-black);
}

.help-btn:hover {
  background: var(--color-purple-primary);
}

.help-btn:active {
  transform: scale(0.98);
}

/* ---------- Floating tooltip ---------- */

.onboarding-tip {
  --tip-bg: var(--onboarding-chip-bg);
  --tip-arrow-size: 6px;
  --tip-offset: var(--space-xs);
  --tip-max-width: 14rem;

  position: fixed;
  z-index: var(--z-tooltip);
  max-width: var(--tip-max-width);
  padding: var(--space-2xs) var(--space-xs);
  background: var(--tip-bg);
  border: var(--onboarding-chip-border);
  border-radius: var(--radius-sm);
  color: var(--onboarding-chip-color);
  font-family: var(--mono);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.08em;
  text-transform: lowercase;
  white-space: normal;
  pointer-events: none;
  opacity: 0;
  transition:
    opacity var(--duration-slow) var(--ease-default),
    transform var(--duration-slow) var(--ease-default);
}

.onboarding-tip.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.onboarding-tip--above:not(.is-visible) {
  transform: translateY(var(--space-2xs));
}

.onboarding-tip--below:not(.is-visible) {
  transform: translateY(calc(-1 * var(--space-2xs)));
}

.onboarding-tip__arrow {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: var(--tip-arrow-size) solid transparent;
  border-right: var(--tip-arrow-size) solid transparent;
}

.onboarding-tip--above .onboarding-tip__arrow {
  bottom: calc(-1 * var(--tip-arrow-size));
  border-top: var(--tip-arrow-size) solid var(--tip-bg);
}

.onboarding-tip--below .onboarding-tip__arrow {
  top: calc(-1 * var(--tip-arrow-size));
  border-bottom: var(--tip-arrow-size) solid var(--tip-bg);
}

/* ---------- Dismiss button + countdown ring ---------- */

.onboarding-tip__dismiss {
  display: none;
  position: relative;
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  padding: 0;
  margin-left: var(--space-2xs);
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
}

.onboarding-tip.is-counting {
  display: flex;
  align-items: center;
  pointer-events: auto;
}

.onboarding-tip.is-counting .onboarding-tip__dismiss {
  display: flex;
  align-items: center;
  justify-content: center;
}

.onboarding-tip__dismiss-x {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: var(--font-weight-bold);
  line-height: 1;
  color: var(--color-black);
}

.onboarding-tip__countdown {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.onboarding-tip__countdown-ring {
  --nudge-duration: 4s;

  fill: none;
  stroke: var(--color-black);
  stroke-opacity: 0.8;
  stroke-width: 2.5;
  stroke-dasharray: 62.83; /* 2 × π × 10 */
  stroke-dashoffset: 0;
  stroke-linecap: round;
}

.is-counting .onboarding-tip__countdown-ring {
  animation: countdown-ring var(--nudge-duration) linear forwards;
}

@keyframes countdown-ring {
  from {
    stroke-dashoffset: 0;
  }
  to {
    stroke-dashoffset: -62.83;
  }
}

/* Mobile: full-width tooltip */
@media (max-width: 40rem) {
  .onboarding-tip {
    --tip-max-width: calc(100vw - 1rem);
  }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .is-whisper {
    animation: none;
  }

  .onboarding-tip {
    transition: none;
  }

  .onboarding-tip__countdown-ring {
    animation: none;
  }
}