/* ============================================================
   Tutorial Hints — numbered badges + hover popovers
   ============================================================ */

/* COLOR SCHEME → ui/shared/css/design-system.css (single source of truth).
   No raw hex/rgb here: use var(--brand) / var(--accent) / var(--accent-hover) for
   the brand accent, rgba(var(--brand-rgb), a) for any accent opacity, var(--success|
   warning|danger) (or rgba(var(--*-rgb), a)) for status, var(--purple) for the 2nd hue.
   Need a colour that doesn't exist yet? Add a token to the palette in design-system.css
   (the dark :root block AND its body.light-mode twin), then reference it here.
   Re-theming the whole app (e.g. peach → green) is then a one-file edit.
   ONE INTENTIONAL EXCEPTION below: the light-mode badge/popover uses a fixed blue
   (#2563eb) instead of the brand accent — see the note at that block. */

/* ── Layer host for all hint badges ── */
#tutorial-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9000;
}

/* ── Numbered badge anchored to a feature ── */
.tutorial-badge {
  position: fixed;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent, #7dcfff);
  color: #0d0d1a;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 11px;
  font-weight: 700;
  line-height: 22px;
  text-align: center;
  cursor: pointer;
  pointer-events: auto;
  user-select: none;
  border: 2px solid #0d0d1a;
  box-shadow:
    0 0 0 2px rgba(var(--brand-rgb), 0.35),
    0 4px 10px -2px rgba(0, 0, 0, 0.5);
  transition: transform 0.15s ease, box-shadow 0.2s ease;
  z-index: 9001;
  animation: tutorial-pulse 2.4s ease-in-out infinite;
}

.tutorial-badge:hover,
.tutorial-badge.active {
  transform: scale(1.18);
  animation: none;
  box-shadow:
    0 0 0 3px rgba(var(--brand-rgb), 0.55),
    0 6px 16px -3px rgba(var(--brand-rgb), 0.55);
}

@keyframes tutorial-pulse {
  0%, 100% {
    box-shadow:
      0 0 0 2px rgba(var(--brand-rgb), 0.35),
      0 4px 10px -2px rgba(0, 0, 0, 0.5);
  }
  50% {
    box-shadow:
      0 0 0 6px rgba(var(--brand-rgb), 0.10),
      0 4px 14px -2px rgba(var(--brand-rgb), 0.45);
  }
}

/* Light theme badge */
/* ⚠ COLOR SCHEME EXCEPTION — the light-mode tutorial badge/popover intentionally
   uses a fixed blue (#2563eb), NOT the brand accent (peach), so the "this is a
   tutorial hint" affordance stays visually distinct from normal accented UI in
   light mode. This is the one documented place tutorial colour does not follow
   the global palette; leave it. (docs/claude/ui-guidance.md → palette exceptions) */
body.light-mode .tutorial-badge {
  border-color: #ffffff;
  color: #ffffff;
  background: #2563eb;
  box-shadow:
    0 0 0 2px rgba(37, 99, 235, 0.3),
    0 4px 10px -2px rgba(0, 0, 0, 0.2);
}
body.light-mode .tutorial-badge:hover,
body.light-mode .tutorial-badge.active {
  box-shadow:
    0 0 0 3px rgba(37, 99, 235, 0.5),
    0 6px 16px -3px rgba(37, 99, 235, 0.4);
}

/* ── Popover panel ──
   Width shrinks on narrow screens so the popover always fits.
   JS overrides width:/maxWidth: on mobile to pin it edge-to-edge. */
.tutorial-popover {
  position: fixed;
  width: min(290px, calc(100vw - 16px));
  max-width: calc(100vw - 16px);
  max-height: calc(100vh - 16px);
  overflow-y: auto;
  background: var(--bg-1, #13132a);
  color: var(--fg-1, #c0caf5);
  border: 1px solid var(--accent, #7dcfff);
  border-radius: 8px;
  padding: 12px 14px;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 12.5px;
  line-height: 1.5;
  box-shadow:
    0 0 0 1px rgba(var(--brand-rgb), 0.25),
    0 12px 32px -8px rgba(0, 0, 0, 0.65);
  pointer-events: auto;
  z-index: 9100;
  box-sizing: border-box;
}

body.light-mode .tutorial-popover {
  background: #ffffff;
  color: #1a1a2e;
  border-color: #2563eb;
  box-shadow:
    0 0 0 1px rgba(37, 99, 235, 0.2),
    0 12px 32px -8px rgba(0, 0, 0, 0.25);
}

.tutorial-popover-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.tutorial-popover-step {
  flex-shrink: 0;
  background: var(--accent, #7dcfff);
  color: #0d0d1a;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

body.light-mode .tutorial-popover-step {
  background: #2563eb;
  color: #fff;
}

.tutorial-popover-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--fg-1, #c0caf5);
  flex: 1;
}

body.light-mode .tutorial-popover-title { color: #0f172a; }

.tutorial-popover-close {
  background: none;
  border: none;
  color: var(--fg-3, #565f89);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  padding: 0 2px;
  flex-shrink: 0;
}
.tutorial-popover-close:hover { color: var(--fg-1, #c0caf5); }

.tutorial-popover-body {
  color: var(--fg-2, #a9b1d6);
  font-size: 12px;
  margin-bottom: 10px;
}

body.light-mode .tutorial-popover-body { color: #334155; }

.tutorial-popover-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border, #2a2a4a);
}

body.light-mode .tutorial-popover-footer { border-top-color: #e2e8f0; }

.tutorial-popover-hideall {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--fg-3, #565f89);
  cursor: pointer;
  user-select: none;
}
.tutorial-popover-hideall input {
  margin: 0;
  cursor: pointer;
  accent-color: var(--accent, #7dcfff);
}
.tutorial-popover-hideall:hover { color: var(--fg-1, #c0caf5); }
body.light-mode .tutorial-popover-hideall { color: #475569; }
body.light-mode .tutorial-popover-hideall:hover { color: #0f172a; }
body.light-mode .tutorial-popover-hideall input { accent-color: #2563eb; }

.tutorial-popover-nav {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--fg-3, #565f89);
}

.tutorial-popover-nav button {
  background: var(--bg-elev, #1a1a2e);
  border: 1px solid var(--border, #2a2a4a);
  color: var(--fg-1, #c0caf5);
  padding: 2px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
}
.tutorial-popover-nav button:hover {
  border-color: var(--accent, #7dcfff);
  color: var(--accent, #7dcfff);
}
.tutorial-popover-nav button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
body.light-mode .tutorial-popover-nav button {
  background: #f1f5f9;
  border-color: #cbd5e1;
  color: #1e293b;
}

/* ── Arrow on popover (pointing to badge) ── */
.tutorial-popover::before {
  content: '';
  position: absolute;
  width: 10px;
  height: 10px;
  background: var(--bg-1, #13132a);
  border-left: 1px solid var(--accent, #7dcfff);
  border-top: 1px solid var(--accent, #7dcfff);
}
body.light-mode .tutorial-popover::before {
  background: #ffffff;
  border-left-color: #2563eb;
  border-top-color: #2563eb;
}
/* Arrow position uses --tutorial-arrow-pos when JS provides one (so it
   tracks the badge on mobile full-width popovers); falls back to 16px. */
.tutorial-popover[data-arrow="top"]::before    { top: -6px;    left: var(--tutorial-arrow-pos, 16px); transform: rotate(45deg); }
.tutorial-popover[data-arrow="bottom"]::before { bottom: -6px; left: var(--tutorial-arrow-pos, 16px); transform: rotate(225deg); }
.tutorial-popover[data-arrow="left"]::before   { left: -6px;   top: var(--tutorial-arrow-pos, 16px);  transform: rotate(-45deg); }
.tutorial-popover[data-arrow="right"]::before  { right: -6px;  top: var(--tutorial-arrow-pos, 16px);  transform: rotate(135deg); }