/* Robot buddy — homepage mascot (loaded only on index.html) */

#rb-root {
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  pointer-events: none;
  z-index: 500;
  overflow: visible;
}

#rb-shadow {
  position: absolute;
  top: 0;
  left: 0;
  width: 36px;
  height: 8px;
  background: radial-gradient(ellipse at center, rgba(0,0,0,0.16) 0%, rgba(0,0,0,0) 70%);
  pointer-events: none;
  z-index: 1;
  will-change: transform;
}

#rb-buddy {
  position: absolute;
  top: 0;
  left: 0;
  width: 48px;
  height: 67px;
  cursor: pointer;
  pointer-events: auto;
  will-change: transform;
  z-index: 2;
  overflow: visible;
}

#rb-broken {
  position: absolute;
  top: 0;
  left: 0;
  width: 90px;
  height: auto;
  pointer-events: none;
  z-index: 2;
  overflow: visible;
  display: none;
  will-change: transform;
}

#rb-bubble {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 3;
  pointer-events: none;
  width: max-content;
  max-width: 240px;
  box-sizing: border-box;
  background: #FDB916;
  color: #000000;
  border-radius: 20px;
  padding: 14px 16px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.14);
  font-size: 13.5px;
  line-height: 1.34;
  font-weight: 700;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  opacity: 0;
  transform: translateY(6px) scale(0.96);
  transform-origin: bottom left;
  transition: opacity 0.18s ease, transform 0.18s cubic-bezier(0.2, 0.9, 0.3, 1.3);
  will-change: transform, opacity;
}

#rb-bubble.show {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

#rb-bubble.loading .msg {
  color: rgba(0, 0, 0, 0.45);
}

/* The "…" thinking bubble is otherwise so narrow the tail overhangs the rounded
   corner and looks jagged — give it a floor so the tail sits on a flat edge. */
#rb-bubble.loading {
  min-width: 64px;
}

#rb-bubble .msg {
  margin: 0;
  user-select: none;
}

#rb-bubble.has-footer .msg {
  margin-bottom: 8px;
}

#rb-bubble .links {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 8px;
}

#rb-bubble .link-go {
  appearance: none;
  border: none;
  background: none;
  padding: 0;
  font: inherit;
  font-size: 12.5px;
  color: #262626;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
  text-align: left;
}

#rb-bubble .link-go:hover {
  color: #000;
}

#rb-bubble .discuss {
  appearance: none;
  border: none;
  background: none;
  padding: 0;
  font: inherit;
  font-size: 11.5px;
  color: rgba(0, 0, 0, 0.55);
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
  display: block;
}

#rb-bubble .discuss:hover {
  color: #000;
}

#rb-bubble .discuss[hidden],
#rb-bubble .links:empty {
  display: none;
}

#rb-bubble::after {
  content: "";
  position: absolute;
  left: 18px;
  bottom: -9px;
  width: 22px;
  height: 12px;
  background: #FDB916;
  clip-path: polygon(0 0, 100% 0, 18% 100%);
}

/* Compose panel — floating bottom-center pod */
#rb-compose {
  position: fixed;
  left: 50%;
  bottom: 20px;
  z-index: 502;
  pointer-events: auto;
  width: min(300px, calc(100vw - 32px));
  padding: 10px;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: #1e1e20;
  border: 1.5px solid #3a3a3e;
  border-radius: 20px;
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.35),
    0 0 0 1px rgba(255, 255, 255, 0.04) inset;
  transform: translateX(-50%) translateY(calc(100% + 48px));
  opacity: 0;
  transition:
    transform 0.24s cubic-bezier(0.2, 0.9, 0.3, 1.1),
    opacity 0.18s ease;
}

#rb-compose.open {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

#rb-compose .done {
  position: absolute;
  top: -10px;
  right: -10px;
  z-index: 1;
  appearance: none;
  border: 1.5px solid #1e1e20;
  width: 26px;
  height: 26px;
  padding: 0;
  background: #e0564f;
  color: #fff;
  border-radius: 50%;
  font-size: 16px;
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  transition: background 0.15s ease, transform 0.12s ease;
}

#rb-compose .done:hover:not(:disabled) {
  background: #ee6a63;
  transform: scale(1.08);
}

#rb-compose .done:active:not(:disabled) {
  transform: scale(0.94);
}

#rb-compose .done:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

#rb-compose .rb-compose-display {
  min-height: 28px;
  max-height: 56px;
  overflow-y: auto;
  margin-bottom: 8px;
  padding: 7px 9px;
  background: #141416;
  border: 1px solid #333338;
  border-radius: 10px;
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: 11.5px;
  line-height: 1.35;
  color: #f0f0f2;
  white-space: pre-wrap;
  word-break: break-word;
}

#rb-compose .rb-compose-display:empty::before {
  content: "Type a message…";
  color: #6b6b70;
}

#rb-keyboard {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-bottom: 8px;
  user-select: none;
}

#rb-keyboard .kb-row {
  display: flex;
  justify-content: center;
  gap: 3px;
}

#rb-keyboard .kb-key {
  appearance: none;
  border: none;
  background: #2c2c30;
  color: #f0f0f2;
  border-radius: 7px;
  min-width: 20px;
  height: 26px;
  padding: 0 5px;
  font-size: 10.5px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  line-height: 1;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06) inset;
}

#rb-keyboard .kb-key:hover {
  background: #38383c;
}

#rb-keyboard .kb-key:active {
  background: #48484e;
}

#rb-keyboard .kb-key.wide {
  min-width: 36px;
  font-size: 12px;
}

#rb-keyboard .kb-key.space {
  flex: 1;
  max-width: 90px;
  font-size: 9.5px;
  letter-spacing: 0.02em;
  color: #a8a8ad;
}

#rb-keyboard .kb-key.submit {
  background: #4a7c59;
  color: #f3f8f4;
  font-size: 10.5px;
  font-weight: 600;
  padding: 0 12px;
  min-width: 44px;
}

#rb-keyboard .kb-key.submit:hover:not(:disabled) {
  background: #568a66;
}

#rb-keyboard .kb-key.submit:active:not(:disabled) {
  background: #3f6b4d;
}

#rb-keyboard .kb-key.submit:disabled {
  background: #34403a;
  color: #6f7a73;
  cursor: not-allowed;
  box-shadow: none;
}

/* Expression states — face swaps, colour, and pose overrides.
   Motion for each state lives in the JS frame() loop; CSS handles the
   swappable SVG parts, colour/filter, and steam animation. */
#rb-eyes-happy,
#rb-eyes-angry,
#rb-eyes-cross,
#rb-eyes-flat,
#rb-steam {
  display: none;
}

#rb-buddy.exp-thinking #rb-eyes { display: none; }
#rb-buddy.exp-thinking #rb-eyes-happy { display: block; }

#rb-buddy.exp-angry #rb-eyes { display: none; }
#rb-buddy.exp-angry #rb-eyes-angry { display: block; }
#rb-buddy.exp-angry #rb-steam { display: block; }

#rb-buddy.exp-broken #rb-eyes { display: none; }
#rb-buddy.exp-broken #rb-eyes-cross { display: block; }

#rb-buddy.exp-offline #rb-eyes { display: none; }
#rb-buddy.exp-offline #rb-eyes-flat { display: block; }
#rb-buddy.exp-offline #rb-dangle { display: none; }
#rb-buddy.exp-offline { filter: grayscale(1) opacity(0.6); }

@media (prefers-reduced-motion: no-preference) {
  #rb-buddy.exp-angry #rb-steam {
    animation: rb-steam 0.85s ease-in-out infinite;
  }
}

@keyframes rb-steam {
  0%, 100% { opacity: 0.55; transform: translateY(0); }
  50%      { opacity: 1;    transform: translateY(-1.5px); }
}

@media (max-width: 480px) {
  #rb-compose {
    bottom: 14px;
    width: min(280px, calc(100vw - 24px));
    padding: 8px;
  }

  #rb-keyboard .kb-key {
    min-width: 18px;
    height: 24px;
    font-size: 10px;
  }
}