/* =========================================================
   StudyPipe · Narrator (Web Speech API guided tour)
   ========================================================= */

/* ---------- Spotlight ---------- */
.narr-spot {
  position: fixed; z-index: 70; pointer-events: none; border-radius: calc(22px * var(--corner, 1));
  box-shadow: 0 0 0 200vmax rgba(4, 6, 14, 0.62);
  opacity: 0; transition: opacity .5s var(--ease), border-radius .4s;
}
.narr-spot.on { opacity: 1; }
.narr-spot::before {
  content: ""; position: absolute; inset: -3px; border-radius: inherit; padding: 2px;
  background: conic-gradient(from var(--a, 0deg), var(--amber), var(--pink), var(--teal), var(--amber));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  animation: narr-spin 3.2s linear infinite;
}
.narr-spot::after {
  content: ""; position: absolute; inset: -10px; border-radius: inherit;
  box-shadow: 0 0 34px 4px rgba(var(--amber-rgb), 0.35), inset 0 0 30px rgba(var(--amber-rgb), 0.12);
  animation: narr-breathe 2.4s ease-in-out infinite;
}
.narr-spot.dimless { box-shadow: none; }
@property --a { syntax: "<angle>"; inherits: false; initial-value: 0deg; }
@keyframes narr-spin { to { --a: 360deg; } }
@keyframes narr-breathe { 50% { opacity: .45; transform: scale(1.012); } }

/* cue tag with pointer */
.narr-cue {
  position: fixed; z-index: 72; pointer-events: none; display: flex; align-items: center; gap: 8px;
  background: var(--amber); color: var(--on-amber); font-weight: 800; font-size: 13px; letter-spacing: .02em;
  padding: 7px 12px 7px 10px; border-radius: 999px; box-shadow: 0 10px 30px -8px rgba(var(--amber-rgb), .7);
  opacity: 0; transform: translateY(6px); transition: opacity .4s var(--ease), transform .4s var(--ease);
  white-space: nowrap;
}
.narr-cue.on { opacity: 1; transform: none; }
.narr-cue .hand { display: inline-flex; animation: narr-point 1s var(--ease) infinite alternate; }
.narr-cue.below .hand { animation-name: narr-point-up; }
@keyframes narr-point { from { transform: translateY(-2px); } to { transform: translateY(4px); } }
@keyframes narr-point-up { from { transform: translateY(2px) rotate(180deg); } to { transform: translateY(-4px) rotate(180deg); } }

/* ---------- Sparkles ---------- */
.sparkle-layer { position: absolute; left: 0; top: 0; width: 100%; height: 0; z-index: 74; pointer-events: none; overflow: visible; overflow-x: clip; }
.sparkle {
  position: absolute; width: var(--s, 14px); height: var(--s, 14px); margin: calc(var(--s, 14px) / -2) 0 0 calc(var(--s, 14px) / -2);
  color: var(--c, #ffd36b); animation: sparkle-pop var(--dur, 1.1s) var(--ease) forwards;
  filter: drop-shadow(0 0 6px currentColor);
}
.sparkle svg { width: 100%; height: 100%; display: block; }
@keyframes sparkle-pop {
  0% { transform: translate(0, 0) scale(0) rotate(0deg); opacity: 0; }
  25% { opacity: 1; transform: translate(calc(var(--dx) * .35), calc(var(--dy) * .35)) scale(1.15) rotate(70deg); }
  100% { transform: translate(var(--dx), var(--dy)) scale(0) rotate(200deg); opacity: 0; }
}
.sparkle.twinkle { animation-name: sparkle-twinkle; }
@keyframes sparkle-twinkle {
  0%, 100% { transform: scale(0) rotate(0deg); opacity: 0; }
  50% { transform: scale(1) rotate(90deg); opacity: 1; }
}

/* hook elements get a subtle shimmer edge */
[data-hook] { position: relative; }
.hook-glint { position: relative; }
.hook-glint::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: linear-gradient(115deg, transparent 35%, rgba(255, 255, 255, .22) 50%, transparent 65%) no-repeat;
  background-size: 250% 100%; background-position: 150% 0; animation: glint 1.4s var(--ease) 1;
}
@keyframes glint { to { background-position: -50% 0; } }

/* ---------- Hero tour button ---------- */
.btn-tour {
  background: rgba(var(--amber-rgb), 0.1); color: var(--amber); box-shadow: inset 0 0 0 1px rgba(var(--amber-rgb), 0.45);
}
.btn-tour:hover { box-shadow: inset 0 0 0 1px var(--amber), 0 10px 30px -12px rgba(var(--amber-rgb), .6); }
.btn-tour .wave { display: inline-flex; gap: 2px; align-items: center; height: 14px; }
.btn-tour .wave i { width: 3px; border-radius: 2px; background: currentColor; animation: eq 1s ease-in-out infinite; }
.btn-tour .wave i:nth-child(1) { height: 6px; animation-delay: -.2s; }
.btn-tour .wave i:nth-child(2) { height: 12px; animation-delay: -.5s; }
.btn-tour .wave i:nth-child(3) { height: 8px; animation-delay: -.8s; }
@keyframes eq { 50% { transform: scaleY(.4); } }

/* ---------- Dock ---------- */
.narr-dock {
  position: fixed; left: 50%; bottom: max(16px, env(safe-area-inset-bottom)); transform: translateX(-50%); z-index: 90;
  width: min(720px, calc(100% - 24px));
  font-family: var(--font-body);
}
.narr-pill {
  display: flex; align-items: center; gap: 12px; margin: 0 auto; width: max-content; max-width: 100%;
  border: 0; cursor: pointer; padding: 10px 20px 10px 10px; border-radius: 999px; color: var(--fg);
  background: rgba(14, 20, 38, 0.86); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  box-shadow: inset 0 0 0 1px var(--line-strong), 0 20px 50px -18px rgba(0, 0, 0, .8);
  font-weight: 700; font-size: 15px; transition: transform .3s var(--ease);
}
.narr-pill:hover { transform: translateY(-2px); }
.narr-pill small { display: block; font-weight: 500; font-size: 12px; color: var(--muted); }
.narr-pill .txt { text-align: left; line-height: 1.25; }
.narr-dock.open .narr-pill { display: none; }
.narr-dock:not(.open) .narr-panel { display: none; }

.narr-avatar {
  position: relative; width: 44px; height: 44px; border-radius: 50%; flex: none;
  background: radial-gradient(circle at 35% 30%, #ffd9a0, var(--amber) 35%, var(--pink) 80%);
  box-shadow: 0 0 0 3px rgba(var(--amber-rgb), 0.18), 0 0 26px rgba(var(--pink-rgb), .45);
  display: grid; place-items: center;
}
.narr-avatar svg { width: 22px; height: 22px; }
.narr-avatar::before, .narr-avatar::after {
  content: ""; position: absolute; inset: -6px; border-radius: 50%; border: 2px solid rgba(var(--amber-rgb), .55); opacity: 0;
}
.speaking .narr-avatar::before { animation: ring 1.6s ease-out infinite; }
.speaking .narr-avatar::after { animation: ring 1.6s ease-out .8s infinite; }
.narr-pill .narr-avatar::before { animation: ring 2.2s ease-out infinite; }
@keyframes ring { 0% { transform: scale(.9); opacity: .9; } 100% { transform: scale(1.6); opacity: 0; } }

.narr-panel {
  background: rgba(12, 17, 33, 0.9); -webkit-backdrop-filter: blur(18px) saturate(140%); backdrop-filter: blur(18px) saturate(140%);
  border-radius: calc(22px * var(--corner, 1)); box-shadow: inset 0 0 0 1px var(--line-strong), 0 30px 70px -20px rgba(0, 0, 0, .85);
  padding: 14px 14px 12px; animation: panel-in .5s var(--ease);
}
@keyframes panel-in { from { opacity: 0; transform: translateY(16px) scale(.98); } }
.narr-top { display: flex; align-items: flex-start; gap: 14px; }
.narr-body { flex: 1; min-width: 0; }
.narr-chapter {
  display: flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--amber);
}
.narr-chapter .count { color: var(--muted); }
.narr-caption {
  position: relative; /* offsetParent for word spans, so long lines can scroll to the spoken word */
  margin: 6px 0 0; font-size: 16.5px; line-height: 1.5; color: var(--fg-soft); font-weight: 500; min-height: 3em;
  max-height: 6em; overflow-y: auto; overscroll-behavior: contain; scrollbar-width: none; scroll-behavior: smooth;
}
.narr-caption::-webkit-scrollbar { display: none; }
.narr-caption .w { transition: color .15s, background .15s; border-radius: calc(4px * var(--corner, 1)); }
.narr-caption .w.said { color: var(--fg); }
.narr-caption .w.now { color: var(--on-amber); background: var(--amber); box-shadow: 0 0 0 2px var(--amber); }
.narr-wait {
  margin-top: 8px; display: none; align-items: center; gap: 8px; font-size: 13px; color: var(--teal); font-weight: 700;
}
.narr-wait.on { display: flex; }
.narr-wait i { width: 8px; height: 8px; border-radius: 50%; background: var(--teal); animation: pulse 1.2s infinite; }

.narr-controls { display: flex; align-items: center; gap: 6px; margin-top: 12px; }
.narr-btn {
  display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: calc(12px * var(--corner, 1)); border: 0; cursor: pointer;
  background: rgba(255, 255, 255, 0.06); color: var(--fg); transition: background .2s, transform .15s;
}
.narr-btn:hover { background: rgba(255, 255, 255, 0.12); }
.narr-btn:active { transform: scale(.95); }
.narr-btn svg { width: 18px; height: 18px; }
.narr-btn.primary { width: 48px; height: 48px; border-radius: 50%; background: linear-gradient(135deg, var(--pink), var(--amber)); color: #fff; }
.narr-btn.pulse-next { box-shadow: 0 0 0 0 rgba(var(--teal-rgb), .6); animation: btn-pulse 1.4s infinite; background: rgba(var(--teal-rgb), .18); color: var(--teal); }
@keyframes btn-pulse { 70% { box-shadow: 0 0 0 12px rgba(var(--teal-rgb), 0); } 100% { box-shadow: 0 0 0 0 rgba(var(--teal-rgb), 0); } }
.narr-spacer { flex: 1; }
.narr-speed {
  height: 34px; border-radius: calc(10px * var(--corner, 1)); border: 0; padding: 0 10px; cursor: pointer; font-family: var(--font-mono); font-size: 12px;
  background: rgba(255, 255, 255, 0.06); color: var(--fg-soft);
}
.narr-win { display: flex; gap: 4px; flex: none; }
.narr-close { width: 34px; height: 34px; border-radius: calc(10px * var(--corner, 1)); flex: none; }
.narr-grip { display: none; }

/* ---------- Minimised bar (keeps playing) ---------- */
.narr-mini { display: none; }
.narr-dock.open.mini .narr-panel { display: none; }
.narr-dock.open.mini .narr-mini { display: flex; }
.narr-dock.mini {
  left: auto; right: max(12px, env(safe-area-inset-right)); transform: none;
  width: auto; max-width: calc(100% - 24px);
}
.narr-mini {
  position: relative; align-items: center; gap: 6px; padding: 6px; border-radius: 999px;
  background: rgba(12, 17, 33, 0.9); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  box-shadow: inset 0 0 0 1px var(--line-strong), 0 20px 50px -18px rgba(0, 0, 0, .8);
  animation: panel-in .35s var(--ease);
}
.narr-mini::after {
  content: ""; position: absolute; left: 22px; right: 22px; bottom: 1px; height: 3px; border-radius: 2px;
  background: linear-gradient(90deg, var(--pink), var(--amber));
  transform-origin: 0 50%; transform: scaleX(var(--prog, 0)); transition: transform .4s var(--ease);
}
.narr-mini-open {
  display: flex; align-items: center; gap: 10px; min-width: 0; padding: 0 6px 0 0; border: 0; background: none;
  color: var(--fg); font: inherit; text-align: left; cursor: pointer;
}
.narr-mini .narr-avatar { width: 38px; height: 38px; }
.narr-mini .narr-avatar svg { width: 18px; height: 18px; }
.narr-mini .txt { display: flex; flex-direction: column; min-width: 0; max-width: 180px; line-height: 1.25; }
.narr-mini .txt b, .narr-mini .txt small { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.narr-mini .txt b { font-size: 13.5px; font-weight: 700; }
.narr-mini .txt small { font-family: var(--font-mono); font-size: 11px; color: var(--muted); }
.narr-dock.waiting .narr-mini .txt small { color: var(--teal); font-weight: 700; }
.narr-dock.waiting .narr-mini { box-shadow: inset 0 0 0 1px rgba(var(--teal-rgb), .55), 0 20px 50px -18px rgba(0, 0, 0, .8); }
.narr-mini .narr-btn { width: 40px; height: 40px; border-radius: 50%; }
.narr-mini .narr-btn.primary { width: 42px; height: 42px; }

.narr-track { display: flex; gap: 4px; margin-top: 12px; }
.narr-track button {
  flex: 1; height: 6px; border: 0; padding: 0; border-radius: calc(3px * var(--corner, 1)); cursor: pointer; background: rgba(255, 255, 255, 0.1);
  position: relative; overflow: hidden;
}
.narr-track button::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--pink), var(--amber)); transform-origin: 0 50%; transform: scaleX(var(--p, 0)); transition: transform .4s var(--ease); }
.narr-track button:hover { background: rgba(255, 255, 255, 0.2); }
.narr-track button:focus-visible { outline-offset: 2px; }

.narr-settings { display: none; gap: 10px; flex-wrap: wrap; align-items: center; margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); }
.narr-settings.on { display: flex; }
.narr-settings select {
  max-width: 100%; height: 34px; border-radius: calc(10px * var(--corner, 1)); border: 0; padding: 0 10px; background: rgba(255, 255, 255, 0.06); color: var(--fg); font: inherit; font-size: 13px;
}
.narr-settings select option { background: var(--ink-800); }
.narr-note { font-size: 12px; color: var(--muted); }

/* keep the dock off the lab HUD on narrow screens */
body.narr-active:not(.narr-minimised) .hero { padding-bottom: 140px; }

@media (max-width: 720px) {
  .narr-dock { width: calc(100% - 16px); bottom: max(8px, env(safe-area-inset-bottom)); }
  .narr-dock.mini { right: max(8px, env(safe-area-inset-right)); max-width: calc(100% - 16px); }
  .narr-panel { padding: 4px 12px 10px; border-radius: 18px 18px 16px 16px; }
  /* drag handle: tap or swipe down to minimise */
  .narr-grip {
    display: block; width: 100%; height: 20px; margin: 0 0 2px; padding: 0; border: 0; background: none; cursor: pointer;
    touch-action: none;
  }
  .narr-grip::before { content: ""; display: block; width: 40px; height: 4px; margin: 0 auto; border-radius: 2px; background: rgba(255, 255, 255, .28); }
  .narr-top { gap: 10px; }
  .narr-top > .narr-avatar { display: none; } /* give the caption the full width; the word highlight shows it's speaking */
  .narr-win { flex-direction: column; }
  .narr-caption { font-size: 15px; min-height: 2.9em; max-height: 4.5em; }
  .narr-controls { gap: 6px; margin-top: 10px; }
  .narr-btn { width: 38px; height: 38px; }
  .narr-btn.primary { width: 44px; height: 44px; }
  .narr-speed { height: 34px; padding: 0 6px; font-size: 11px; }
  .narr-track { margin-top: 10px; }
  .narr-cue { font-size: 12px; }
}
@media (max-width: 380px) {
  .narr-controls { gap: 4px; }
  .narr-btn { width: 34px; height: 34px; }
  .narr-btn.primary { width: 42px; height: 42px; }
  .narr-mini .txt b { display: none; }
  .narr-mini .txt { max-width: 96px; }
}
/* phones held sideways: keep the panel short */
@media (max-height: 500px) and (orientation: landscape) {
  .narr-caption { min-height: 0; max-height: 3em; }
  .narr-track, .narr-grip { display: none; }
  .narr-panel { padding-top: 10px; }
  .narr-controls { margin-top: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  .narr-spot::before, .narr-spot::after, .sparkle, .narr-cue .hand { animation: none !important; }
  .narr-caption { scroll-behavior: auto; }
}

/* Shown when the device reports no speech voice, so a silent tour is explained instead of looking broken */
.narr-novoice { margin: 6px 0 0; padding: 6px 10px; border-radius: calc(8px * var(--corner, 1)); background: rgba(var(--warn-rgb), .14); color: var(--fg-soft, var(--fg)); font-size: 12px; line-height: 1.4; }
.narr-novoice[hidden] { display: none; }