/* ── floating guide bot "Byte" — wanders viewport, no overlay panel ── */

/* ── wrapper (positioned by JS; transition = the wander movement) ──── */
.bot {
  position: fixed;
  z-index: 320;
  pointer-events: none;
  user-select: none;
  transition:
    left 1.6s cubic-bezier(.34, 1.4, .64, 1),
    top  1.3s cubic-bezier(.34, 1.4, .64, 1);
}
.bot[hidden] { display: none; }

/* ── figure — the clickable character ─────────────────────────────── */
.bot__figure {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: auto;
  cursor: pointer;
  animation: bot-bob 3.8s var(--ease-in-out) infinite;
}
.bot__figure:focus-visible { outline: none; }
.bot__figure:focus-visible .bot__body {
  box-shadow:
    0 6px 22px -6px var(--violet-glow),
    0 0 0 2px var(--cyan-2),
    inset 0 1px 0 oklch(100% 0 0 / 0.22);
}

/* ── antenna ───────────────────────────────────────────────────────── */
.bot__antenna {
  width: 3px;
  height: 13px;
  background: linear-gradient(to top, var(--cyan), var(--violet));
  border-radius: 2px;
  margin-bottom: -1px;
  position: relative;
}
.bot__antenna::before {
  content: '';
  position: absolute;
  bottom: calc(100% - 1px);
  left: 50%; transform: translateX(-50%);
  width: 9px; height: 9px;
  background: var(--violet);
  border-radius: 50%;
  box-shadow: 0 0 8px 2px var(--violet-glow);
  animation: antenna-glow 2.4s var(--ease-in-out) infinite;
}

/* ── torso row: left arm + body + right arm ──────────────────────── */
.bot__torso {
  display: flex;
  align-items: center;
}

/* ── body ─────────────────────────────────────────────────────────── */
.bot__body {
  width: 52px;
  height: 58px;
  background: linear-gradient(150deg, var(--cyan-2) 0%, var(--violet) 100%);
  border-radius: 50% 50% 42% 42% / 50% 50% 36% 36%;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  box-shadow:
    0 6px 22px -6px var(--violet-glow),
    0 0 0 1px var(--line-2),
    inset 0 1px 0 oklch(100% 0 0 / 0.22);
  transition: box-shadow var(--dur-fast);
}
/* glossy sheen */
.bot__body::before {
  content: '';
  position: absolute;
  top: 5px; left: 6px; right: 6px;
  height: 38%;
  border-radius: 50%;
  background: radial-gradient(ellipse at 42% 38%,
    oklch(100% 0 0 / 0.42), transparent 62%);
  pointer-events: none;
}
.bot__figure:hover .bot__body {
  box-shadow:
    0 10px 32px -6px var(--violet-glow),
    0 0 0 1px var(--line-3),
    inset 0 1px 0 oklch(100% 0 0 / 0.3);
}

/* ── eyes ─────────────────────────────────────────────────────────── */
.bot__eyes {
  display: flex;
  gap: 9px;
  align-items: center;
}
.bot__eye {
  width: 8px; height: 10px;
  background: oklch(11% 0 0);
  border-radius: 50%;
  box-shadow: inset 0 1px 0 oklch(100% 0 0 / 0.35);
  animation: bot-blink 5s ease-in-out infinite;
  transition: height var(--dur-fast);
}
.bot__eye:nth-child(2) { animation-delay: .09s; }
.bot__figure:hover .bot__eye { height: 12px; }
.bot.is-speaking .bot__eye { animation-duration: 2.2s; }

/* ── mouth ─────────────────────────────────────────────────────────── */
.bot__mouth {
  width: 18px; height: 6px;
  border-bottom: 2.5px solid oklch(10% 0 0 / 0.5);
  border-left:   2px   solid oklch(10% 0 0 / 0.35);
  border-right:  2px   solid oklch(10% 0 0 / 0.35);
  border-radius: 0 0 8px 8px;
}

/* ── arms ─────────────────────────────────────────────────────────── */
.bot__arm {
  width: 22px; height: 10px;
  background: linear-gradient(150deg, var(--cyan-2), var(--violet));
  border-radius: 5px;
  position: relative;
  box-shadow: 0 2px 8px -3px var(--violet-glow);
}
.bot__arm--l {
  border-radius: 5px 3px 3px 5px;
  margin-right: -3px;
  transform-origin: right center;
  animation: arm-l-idle 3.8s var(--ease-in-out) infinite;
}
.bot__arm--r {
  border-radius: 3px 5px 5px 3px;
  margin-left: -3px;
  transform-origin: left center;
  animation: arm-r-idle 3.8s var(--ease-in-out) infinite;
}

/* hands — round blobs at end of each arm */
.bot__hand {
  position: absolute;
  width: 12px; height: 12px;
  background: linear-gradient(150deg, var(--cyan-2), var(--violet));
  border-radius: 50%;
  top: 50%; transform: translateY(-50%);
  box-shadow: 0 2px 6px -2px var(--violet-glow);
}
.bot__arm--l .bot__hand { left:  -5px; }
.bot__arm--r .bot__hand { right: -5px; }

/* ── wave state ───────────────────────────────────────────────────── */
.bot.is-waving .bot__arm--l { animation: arm-wave 0.72s var(--ease-in-out) 2 !important; }

/* ── speech bubble ────────────────────────────────────────────────── */
.bot__speech {
  position: absolute;
  /* default: above the character */
  bottom: calc(100% + 16px);
  left: 50%;
  transform: translateX(-50%) translateY(8px) scale(0.94);
  width: clamp(155px, 44vw, 215px);
  background: var(--bg-1);
  border: 1px solid var(--line-2);
  border-radius: 12px;
  padding: 10px 13px 10px;
  box-shadow: 0 8px 28px -8px oklch(0% 0 0 / 0.28);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity .25s var(--ease-out),
    transform .25s var(--ease-out);
  white-space: normal;
}
.bot__speech.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0) scale(1);
}
/* tail pointing down toward character */
.bot__speech::after {
  content: '';
  position: absolute;
  top: 100%; left: 50%;
  transform: translateX(-50%);
  border: 7px solid transparent;
  border-top-color: var(--bg-1);
}

/* ── flip bubble below when bot is near top of viewport ─────────── */
.bot.is-high .bot__speech {
  bottom: auto;
  top: calc(100% + 16px);
  transform: translateX(-50%) translateY(-8px) scale(0.94);
}
.bot.is-high .bot__speech.is-visible {
  transform: translateX(-50%) translateY(0) scale(1);
}
.bot.is-high .bot__speech::after {
  top: auto;
  bottom: 100%;
  border-top-color: transparent;
  border-bottom-color: var(--bg-1);
}

/* ── nudge bubble left/right when near viewport edges ────────────── */
.bot.edge-left  .bot__speech { left: 0;    transform: translateX(0) translateY(8px) scale(0.94); }
.bot.edge-left  .bot__speech.is-visible { transform: translateX(0) translateY(0) scale(1); }
.bot.edge-left  .bot__speech::after { left: 20%; }

.bot.edge-right .bot__speech { left: auto; right: 0; transform: translateX(0) translateY(8px) scale(0.94); }
.bot.edge-right .bot__speech.is-visible { transform: translateX(0) translateY(0) scale(1); }
.bot.edge-right .bot__speech::after { left: auto; right: 16%; transform: none; }

/* is-high + edge-left/right also needs flip on tail */
.bot.is-high.edge-left .bot__speech  { transform: translateX(0) translateY(-8px) scale(0.94); }
.bot.is-high.edge-left  .bot__speech.is-visible { transform: translateX(0) translateY(0) scale(1); }
.bot.is-high.edge-right .bot__speech { transform: translateX(0) translateY(-8px) scale(0.94); }
.bot.is-high.edge-right .bot__speech.is-visible { transform: translateX(0) translateY(0) scale(1); }

.bot__text {
  font-family: var(--font-body);
  font-size: 0.8rem;
  line-height: 1.52;
  color: var(--ink);
  font-weight: 300;
  margin: 0;
}

/* ── reduced motion ─────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .bot                               { transition: none !important; }
  .bot__figure,
  .bot__arm--l,
  .bot__arm--r,
  .bot__antenna::before,
  .bot__eye                          { animation: none !important; }
  .bot__speech                       { transition: opacity .12s linear !important; transform: translateX(-50%) !important; }
  .bot.edge-left  .bot__speech       { transform: none !important; }
  .bot.edge-right .bot__speech       { transform: none !important; }
}

/* ── keyframes ──────────────────────────────────────────────────── */
@keyframes bot-bob {
  0%, 100% { transform: translateY(0);    }
  50%      { transform: translateY(-9px); }
}
@keyframes bot-blink {
  0%, 90%, 100% { transform: scaleY(1);   }
  95%           { transform: scaleY(0.1); }
}
@keyframes arm-l-idle {
  0%, 100% { transform: rotate(14deg);  }
  50%      { transform: rotate(-5deg);  }
}
@keyframes arm-r-idle {
  0%, 100% { transform: rotate(-14deg); }
  50%      { transform: rotate(5deg);   }
}
@keyframes arm-wave {
  0%   { transform: rotate(14deg);  }
  25%  { transform: rotate(-38deg); }
  55%  { transform: rotate(8deg);   }
  80%  { transform: rotate(-28deg); }
  100% { transform: rotate(14deg);  }
}
@keyframes antenna-glow {
  0%, 100% { box-shadow: 0 0 6px 1px var(--violet-glow);  opacity: .75; }
  50%      { box-shadow: 0 0 14px 4px var(--violet-glow); opacity: 1;   }
}

/* ── mobile/tablet: pin the bot to the bottom-left corner and shrink its
   speech bubble so neither covers page content (overrides the JS wander) ── */
@media (max-width: 820px) {
  .bot {
    left: 6px !important;
    right: auto !important;
    top: auto !important;
    bottom: 12px !important;
  }
  .bot__speech {
    width: clamp(108px, 32vw, 138px) !important;
    padding: 7px 10px !important;
    border-radius: 10px;
    /* always sit above the bot, anchored to its left edge, extending right */
    left: 0 !important;
    right: auto !important;
    bottom: calc(100% + 13px) !important;
    top: auto !important;
    transform: translateX(0) translateY(0) scale(1) !important;
  }
  .bot__text { font-size: 0.66rem; line-height: 1.4; }
  .bot__speech::after {
    left: 22px !important;
    right: auto !important;
    top: 100% !important;
    bottom: auto !important;
    border-top-color: var(--bg-1) !important;
    border-bottom-color: transparent !important;
  }
}