/* ==========================================================================
   Claude Code Cat Learning Lab - Shrimp Cat Character
   SVG-based animated character matching the reference design
   ========================================================================== */

/* ==========================================================================
   Cat Container
   ========================================================================== */

#shrimp-cat {
  position: relative;
  width: 180px;
  height: 180px;
  margin: 0 auto 16px;
  user-select: none;
  pointer-events: none;
  z-index: 2;
}

.cat-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: drop-shadow(0 6px 12px rgba(224, 96, 80, 0.2));
}

/* ==========================================================================
   Keyframe Animations
   ========================================================================== */

@keyframes idle-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@keyframes antenna-sway {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(3deg); }
  75% { transform: rotate(-3deg); }
}

@keyframes blink {
  0%, 42%, 48%, 100% { transform: scaleY(1); }
  45% { transform: scaleY(0.05); }
}

@keyframes happy-bounce {
  0%, 100% { transform: translateY(0) scale(1); }
  30% { transform: translateY(-12px) scale(1.04); }
  60% { transform: translateY(-3px) scale(0.97); }
  80% { transform: translateY(-8px) scale(1.02); }
}

@keyframes thinking-tilt {
  0%, 100% { transform: rotate(0deg); }
  50% { transform: rotate(5deg); }
}

@keyframes celebrate {
  0%, 100% { transform: translateY(0) scale(1) rotate(0deg); }
  15% { transform: translateY(-14px) scale(1.07) rotate(-4deg); }
  30% { transform: translateY(-3px) scale(0.96) rotate(2deg); }
  45% { transform: translateY(-10px) scale(1.05) rotate(-2deg); }
  60% { transform: translateY(-2px) scale(0.98) rotate(1deg); }
  80% { transform: translateY(-7px) scale(1.03) rotate(-1deg); }
}

@keyframes wave-claw {
  0%, 100% { transform: rotate(0deg) translateY(0); }
  25% { transform: rotate(-20deg) translateY(-8px); }
  50% { transform: rotate(-15deg) translateY(-10px); }
  75% { transform: rotate(-25deg) translateY(-6px); }
}

@keyframes sparkle {
  0%, 100% { opacity: 0; transform: scale(0) rotate(0deg); }
  50% { opacity: 1; transform: scale(1) rotate(180deg); }
}

@keyframes claw-pinch {
  0%, 70%, 100% { transform: scaleX(1); }
  35% { transform: scaleX(0.85); }
}

@keyframes mouth-talk {
  0%, 55%, 100% { transform: scaleY(1); }
  25% { transform: scaleY(1.8); }
}

@keyframes eye-sparkle {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.2); }
}

/* ==========================================================================
   State: Idle
   ========================================================================== */

.cat-idle {
  animation: idle-bounce 3s ease-in-out infinite;
}

.cat-idle .cat-antennae {
  transform-origin: 100px 45px;
  animation: antenna-sway 4s ease-in-out infinite;
}

.cat-idle .cat-eyes {
  transform-origin: 100px 75px;
  animation: blink 4.5s ease-in-out infinite;
}

/* ==========================================================================
   State: Happy
   ========================================================================== */

.cat-happy {
  animation: happy-bounce 1.3s ease-in-out infinite;
}

/* Happy eyes - squinted crescents */
.cat-happy .eye-iris-left,
.cat-happy .eye-iris-right,
.cat-happy .eye-pupil,
.cat-happy .eye-highlight,
.cat-happy .eye-white {
  transition: all 0.2s ease;
}

.cat-happy .cat-eyes {
  animation: eye-sparkle 1s ease-in-out infinite;
}

.cat-happy .cat-claw-left {
  animation: claw-pinch 1.5s ease-in-out infinite;
  transform-origin: 38px 108px;
}

.cat-happy .cat-claw-right {
  animation: claw-pinch 1.5s ease-in-out infinite 0.3s;
  transform-origin: 162px 108px;
}

.cat-happy .cat-antennae {
  transform-origin: 100px 45px;
  animation: antenna-sway 2s ease-in-out infinite;
}

/* ==========================================================================
   State: Thinking
   ========================================================================== */

.cat-thinking {
  animation: thinking-tilt 2.5s ease-in-out infinite;
  transform-origin: center bottom;
}

.cat-thinking .cat-antennae {
  transform-origin: 100px 45px;
  animation: antenna-sway 1.5s ease-in-out infinite;
}

/* ==========================================================================
   State: Encouraging
   ========================================================================== */

.cat-encouraging {
  animation: idle-bounce 2s ease-in-out infinite;
}

.cat-encouraging .cat-claw-left {
  animation: claw-pinch 1.2s ease-in-out infinite;
  transform-origin: 38px 108px;
}

.cat-encouraging .cat-claw-right {
  animation: claw-pinch 1.2s ease-in-out infinite 0.2s;
  transform-origin: 162px 108px;
}

.cat-encouraging .cat-antennae {
  transform-origin: 100px 45px;
  animation: antenna-sway 2.5s ease-in-out infinite;
}

/* ==========================================================================
   State: Celebrating
   ========================================================================== */

.cat-celebrating {
  animation: celebrate 1.5s ease-in-out infinite;
}

.cat-celebrating .cat-claw-left {
  animation: wave-claw 0.6s ease-in-out infinite;
  transform-origin: 38px 115px;
}

.cat-celebrating .cat-claw-right {
  animation: wave-claw 0.6s ease-in-out infinite 0.15s;
  transform-origin: 162px 115px;
}

.cat-celebrating .cat-antennae {
  transform-origin: 100px 45px;
  animation: antenna-sway 0.8s ease-in-out infinite;
}

/* Sparkle particles */
.cat-celebrating::before,
.cat-celebrating::after {
  content: '\2726';
  position: absolute;
  font-size: 16px;
  z-index: 10;
  animation: sparkle 0.8s ease-in-out infinite;
}

.cat-celebrating::before {
  top: 5px;
  left: 15px;
  color: #ffd700;
  animation-delay: 0s;
}

.cat-celebrating::after {
  top: 0px;
  right: 15px;
  font-size: 13px;
  color: #a29bfe;
  animation-delay: 0.4s;
}

/* ==========================================================================
   State: Speaking
   ========================================================================== */

.cat-speaking .cat-mouth {
  transform-origin: 100px 90px;
  animation: mouth-talk 0.5s ease-in-out infinite;
}

.cat-speaking .cat-antennae {
  transform-origin: 100px 45px;
  animation: antenna-sway 2s ease-in-out infinite;
}

/* ==========================================================================
   State: Waving
   ========================================================================== */

.cat-waving .cat-claw-right {
  animation: wave-claw 1s ease-in-out infinite;
  transform-origin: 162px 115px;
}

.cat-waving .cat-antennae {
  transform-origin: 100px 45px;
  animation: antenna-sway 2s ease-in-out infinite;
}

/* ==========================================================================
   Speech Bubble
   ========================================================================== */

#speech-bubble {
  position: relative;
  margin: 0 auto;
  max-width: 420px;
  padding: 14px 20px;
  background: var(--bg-card, rgba(26, 26, 46, 0.8));
  border: 1px solid var(--glass-border, rgba(255, 255, 255, 0.08));
  border-radius: 18px;
  box-shadow:
    0 4px 20px rgba(0, 0, 0, 0.15),
    0 0 0 1px rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 5;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary, #b8b8d0);
  font-weight: 500;
}

#speech-bubble.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Triangle pointer pointing up */
#speech-bubble::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 9px solid transparent;
  border-right: 9px solid transparent;
  border-bottom: 8px solid var(--glass-border, rgba(255, 255, 255, 0.08));
}

#speech-bubble::after {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 7px solid var(--bg-card, rgba(26, 26, 46, 0.8));
}

/* Light theme */
[data-theme="light"] #speech-bubble {
  background: rgba(255, 255, 255, 0.95);
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  color: #555;
}

[data-theme="light"] #speech-bubble::before {
  border-bottom-color: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] #speech-bubble::after {
  border-bottom-color: rgba(255, 255, 255, 0.95);
}

/* Typing cursor */
.typing-cursor {
  display: inline-block;
  width: 2px;
  height: 14px;
  background: var(--primary, #e8734a);
  margin-left: 2px;
  vertical-align: middle;
  animation: cursor-blink 0.8s step-end infinite;
}

@keyframes cursor-blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* ==========================================================================
   Accessibility - Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  #shrimp-cat,
  .cat-idle,
  .cat-happy,
  .cat-thinking,
  .cat-encouraging,
  .cat-celebrating,
  .cat-speaking,
  .cat-waving,
  .cat-idle .cat-antennae,
  .cat-idle .cat-eyes,
  .cat-happy .cat-claw-left,
  .cat-happy .cat-claw-right,
  .cat-happy .cat-antennae,
  .cat-thinking .cat-antennae,
  .cat-encouraging .cat-claw-left,
  .cat-encouraging .cat-claw-right,
  .cat-encouraging .cat-antennae,
  .cat-celebrating .cat-claw-left,
  .cat-celebrating .cat-claw-right,
  .cat-celebrating .cat-antennae,
  .cat-speaking .cat-mouth,
  .cat-speaking .cat-antennae,
  .cat-waving .cat-claw-right,
  .cat-waving .cat-antennae {
    animation: none !important;
  }

  .cat-celebrating::before,
  .cat-celebrating::after {
    animation: none !important;
    display: none;
  }

  #speech-bubble {
    transition: none !important;
  }

  .typing-cursor {
    animation: none !important;
    opacity: 1;
  }
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 767px) {
  #shrimp-cat {
    width: 140px;
    height: 140px;
    margin-bottom: 12px;
  }
}