#avatar-reaction-bubble.avatar-reaction-bubble {
    --bubble-text: #28415e;
    --bubble-shell-image: url('/static/icons/chat_bubble.png');
    --bubble-emotion-image: none;
    --bubble-width: 340px;
    --bubble-height: 260px;
    --bubble-stage-left: 15%;
    --bubble-stage-top: 11%;
    --bubble-stage-width: 72%;
    --bubble-stage-height: 72%;
    --bubble-art-width: 138%;
    --bubble-art-height: 138%;
    position: fixed;
    left: -9999px;
    top: -9999px;
    z-index: 99990;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(8px) scale(0.96);
    transition: opacity 0.18s ease, transform 0.18s cubic-bezier(0.2, 0.8, 0.2, 1);
    filter: drop-shadow(0 10px 20px rgba(22, 46, 84, 0.12));
}

#avatar-reaction-bubble.avatar-reaction-bubble.is-visible {
    opacity: 0.92;
    visibility: visible;
    transform: translateY(0) scale(1);
}

#avatar-reaction-bubble.avatar-reaction-bubble.is-fading {
    opacity: 0;
    visibility: visible;
    transform: translateY(-4px) scale(0.98);
}

#avatar-reaction-bubble .avatar-reaction-bubble-frame {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: var(--bubble-width);
    height: var(--bubble-height);
    opacity: 1;
    transform: scale(1);
    transition: opacity 0.18s ease, transform 0.18s ease;
}

#avatar-reaction-bubble .avatar-reaction-bubble-shell {
    position: absolute;
    inset: 0;
    opacity: 0.9;
    background-image: var(--bubble-shell-image);
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    filter: drop-shadow(0 10px 18px rgba(64, 122, 170, 0.18));
}

#avatar-reaction-bubble .avatar-reaction-bubble-stage {
    position: absolute;
    left: var(--bubble-stage-left);
    top: var(--bubble-stage-top);
    width: var(--bubble-stage-width);
    height: var(--bubble-stage-height);
    display: grid;
    place-items: center;
}

#avatar-reaction-bubble[data-side="right"] {
    --bubble-stage-left: 20%;
}

#avatar-reaction-bubble .avatar-reaction-bubble-mascot {
    position: absolute;
    width: var(--bubble-art-width);
    height: var(--bubble-art-height);
    left: 50%;
    top: 50%;
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.92);
    transform-origin: center center;
    background-image: var(--bubble-emotion-image);
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    transition: opacity 0.18s ease, transform 0.18s ease;
    will-change: transform, opacity;
}

#avatar-reaction-bubble.has-emotion-art .avatar-reaction-bubble-mascot {
    opacity: 0.86;
    transform: translate(-50%, -50%) scale(1);
}

#avatar-reaction-bubble.avatar-reaction-bubble.is-fading .avatar-reaction-bubble-frame,
#avatar-reaction-bubble.avatar-reaction-bubble.is-hidden .avatar-reaction-bubble-frame {
    opacity: 0;
    transform: scale(0.98);
}

#avatar-reaction-bubble.avatar-reaction-bubble.is-fading .avatar-reaction-bubble-mascot,
#avatar-reaction-bubble.avatar-reaction-bubble.is-hidden .avatar-reaction-bubble-mascot {
    animation: none !important;
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.92);
}

#avatar-reaction-bubble.has-emotion-art[data-theme="happy"] .avatar-reaction-bubble-mascot {
    transform-origin: bottom center;
    animation: neko-bubble-happy-bounce 0.95s ease-in-out infinite;
}

#avatar-reaction-bubble.has-emotion-art[data-theme="neutral"] .avatar-reaction-bubble-mascot {
    animation: neko-bubble-neutral-breathe 2.4s ease-in-out infinite;
}

#avatar-reaction-bubble.has-emotion-art[data-theme="sad"] .avatar-reaction-bubble-mascot {
    animation: neko-bubble-sad-shiver 1.15s ease-in-out infinite;
}

#avatar-reaction-bubble.has-emotion-art[data-theme="angry"] .avatar-reaction-bubble-mascot {
    animation: neko-bubble-angry-shake 0.3s ease-in-out infinite;
}

#avatar-reaction-bubble.has-emotion-art[data-theme="surprised"] .avatar-reaction-bubble-mascot {
    animation: neko-bubble-surprised-pop 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) 1 both;
}

#avatar-reaction-bubble[data-side="right"] .avatar-reaction-bubble-mascot {
    left: 52%;
}

#avatar-reaction-bubble .avatar-reaction-bubble-content {
    position: relative;
    z-index: 1;
    display: inline-block;
    max-width: 82%;
    white-space: nowrap;
    text-align: center;
    color: var(--bubble-text);
    font-family: "Trebuchet MS", "Verdana", sans-serif;
    font-size: calc(var(--bubble-height) * 0.2);
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0.02em;
    opacity: 0.8;
    transform: none;
}

#avatar-reaction-bubble[data-phase="emotion-ready"] .avatar-reaction-bubble-content,
#avatar-reaction-bubble.has-emotion-art .avatar-reaction-bubble-content {
    opacity: 0;
}

#avatar-reaction-bubble[data-phase="thinking"] .avatar-reaction-bubble-content {
    color: #6f85a0;
    opacity: 0.68;
    letter-spacing: 0.08em;
    animation: neko-bubble-thinking 1.6s ease-in-out infinite;
}

#avatar-reaction-bubble[data-side="left"][data-phase="thinking"] .avatar-reaction-bubble-content {
    transform: translateX(-5%);
}

#avatar-reaction-bubble[data-side="right"] .avatar-reaction-bubble-shell {
    transform: scaleX(-1);
}

#avatar-reaction-bubble[data-theme="thinking"] {
    --bubble-text: #5c7693;
}

#avatar-reaction-bubble[data-theme="happy"] {
    --bubble-text: #7a4f10;
    --bubble-emotion-image: url('/static/icons/happy_cat.png');
}

#avatar-reaction-bubble[data-theme="sad"] {
    --bubble-text: #30517b;
    --bubble-emotion-image: url('/static/icons/sad_cat.png');
}

#avatar-reaction-bubble[data-theme="angry"] {
    --bubble-text: #8c2f1f;
    --bubble-emotion-image: url('/static/icons/angry_cat.png');
}

#avatar-reaction-bubble[data-theme="neutral"] {
    --bubble-text: #445469;
    --bubble-emotion-image: url('/static/icons/calm_cat.png');
}

#avatar-reaction-bubble[data-theme="surprised"] {
    --bubble-text: #185b45;
    --bubble-emotion-image: url('/static/icons/surprise_cat.png');
}

#avatar-reaction-bubble-debug-overlay {
    position: fixed;
    inset: 0;
    z-index: 99991;
    pointer-events: none;
}

#avatar-reaction-bubble-debug-overlay.is-hidden {
    display: none;
}

#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-rect {
    position: fixed;
    border: 2px solid;
    border-radius: 12px;
    background: transparent;
    box-sizing: border-box;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.24) inset;
}

#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-rect::after {
    content: attr(data-label);
    position: absolute;
    left: 0;
    top: -24px;
    padding: 3px 8px;
    border-radius: 999px;
    color: #fff7ea;
    font: 600 11px/1.2 "Trebuchet MS", "Verdana", sans-serif;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-rect.is-hidden,
#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-anchor.is-hidden,
#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-guide.is-hidden {
    display: none;
}

#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-rect.is-bounds {
    border-color: rgba(255, 180, 71, 0.95);
    background: rgba(255, 180, 71, 0.06);
}

#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-rect.is-bounds::after {
    background: rgba(255, 180, 71, 0.9);
}

#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-rect.is-head {
    border-color: rgba(61, 214, 161, 0.98);
    background: rgba(61, 214, 161, 0.08);
}

#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-rect.is-head::after {
    background: rgba(31, 170, 125, 0.92);
}

#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-rect.is-body {
    border-color: rgba(61, 137, 255, 0.98);
    background: rgba(61, 137, 255, 0.06);
}

#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-rect.is-body::after {
    background: rgba(39, 103, 214, 0.92);
}

#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-rect.is-bubble {
    border-color: rgba(255, 88, 111, 0.98);
    background: rgba(255, 88, 111, 0.05);
}

#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-rect.is-bubble::after {
    background: rgba(220, 57, 81, 0.94);
}

#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-anchor {
    position: fixed;
    width: 14px;
    height: 14px;
    margin-left: -7px;
    margin-top: -7px;
    border-radius: 50%;
    background: #ffe168;
    box-shadow: 0 0 0 3px rgba(255, 225, 104, 0.28);
}

#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-guide {
    position: fixed;
    height: 2px;
    transform-origin: 0 50%;
    background:
        linear-gradient(
            90deg,
            rgba(255, 225, 104, 0.95) 0%,
            rgba(255, 225, 104, 0.95) 45%,
            rgba(255, 112, 136, 0.95) 100%
        );
    opacity: 0.88;
}

#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-panel {
    position: fixed;
    right: 16px;
    top: 16px;
    width: min(320px, calc(100vw - 32px));
    padding: 12px 13px;
    border-radius: 18px;
    background: rgba(17, 23, 35, 0.86);
    color: #eef6ff;
    box-shadow: 0 18px 40px rgba(8, 13, 24, 0.32);
    backdrop-filter: blur(12px);
}

#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-title {
    font: 700 13px/1.2 "Trebuchet MS", "Verdana", sans-serif;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-hint {
    margin-top: 4px;
    color: rgba(227, 237, 251, 0.72);
    font: 500 11px/1.2 "Trebuchet MS", "Verdana", sans-serif;
}

#avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-body {
    margin: 10px 0 0;
    color: #f4f8ff;
    font: 500 11px/1.55 "SFMono-Regular", "Consolas", "Menlo", monospace;
    white-space: pre-wrap;
}

@keyframes neko-bubble-thinking {
    0%,
    100% {
        transform: translateY(0);
        opacity: 0.88;
    }

    50% {
        transform: translateY(-2px);
        opacity: 1;
    }
}

@keyframes neko-bubble-angry-shake {
    0%,
    100% {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    15% {
        transform: translate(calc(-50% - 3px), calc(-50% + 2px)) rotate(-2deg);
    }

    30% {
        transform: translate(calc(-50% + 3px), calc(-50% - 3px)) rotate(1.6deg);
    }

    45% {
        transform: translate(calc(-50% - 4px), calc(-50% - 1px)) rotate(-1.4deg);
    }

    60% {
        transform: translate(calc(-50% + 4px), calc(-50% + 2px)) rotate(1.8deg);
    }

    75% {
        transform: translate(calc(-50% - 3px), calc(-50% + 3px)) rotate(-2deg);
    }

    90% {
        transform: translate(calc(-50% + 2px), calc(-50% - 2px)) rotate(1deg);
    }
}

@keyframes neko-bubble-happy-bounce {
    0%,
    100% {
        transform: translate(-50%, -50%) scale(1, 1);
    }

    20% {
        transform: translate(-50%, calc(-50% + 4px)) scale(1.05, 0.92);
    }

    42% {
        transform: translate(-50%, calc(-50% - 2px)) scale(0.98, 1.08);
    }

    60% {
        transform: translate(-50%, calc(-50% + 1px)) scale(1.02, 0.98);
    }

    80% {
        transform: translate(-50%, calc(-50% + 3px)) scale(1.04, 0.94);
    }
}

@keyframes neko-bubble-neutral-breathe {
    0%,
    100% {
        transform: translate(-50%, -50%) scale(1) rotate(0deg);
        opacity: 0.84;
    }

    25% {
        transform: translate(calc(-50% - 1px), calc(-50% - 2px)) scale(1.015) rotate(-0.5deg);
        opacity: 0.88;
    }

    50% {
        transform: translate(-50%, calc(-50% + 1px)) scale(0.992) rotate(0deg);
        opacity: 0.82;
    }

    75% {
        transform: translate(calc(-50% + 1px), calc(-50% - 1px)) scale(1.012) rotate(0.5deg);
        opacity: 0.88;
    }
}

@keyframes neko-bubble-sad-shiver {
    0%,
    100% {
        transform: translate(-50%, -50%) scale(0.975);
        opacity: 0.76;
    }

    22% {
        transform: translate(calc(-50% - 1px), calc(-50% + 1px)) scale(0.978);
        opacity: 0.8;
    }

    48% {
        transform: translate(calc(-50% + 1px), calc(-50% - 1px)) scale(0.97);
        opacity: 0.82;
    }

    74% {
        transform: translate(calc(-50% - 1px), -50%) scale(0.978);
        opacity: 0.79;
    }
}

@keyframes neko-bubble-surprised-pop {
    0% {
        transform: translate(-50%, -50%) scale(0.42);
        opacity: 0;
    }

    50% {
        transform: translate(-50%, calc(-50% - 3px)) scale(1.3);
        opacity: 0.96;
    }

    72% {
        transform: translate(-50%, calc(-50% + 2px)) scale(0.94);
        opacity: 0.9;
    }

    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.86;
    }
}

@media (prefers-reduced-motion: reduce) {
    #avatar-reaction-bubble.has-emotion-art .avatar-reaction-bubble-mascot,
    #avatar-reaction-bubble[data-phase="thinking"] .avatar-reaction-bubble-content {
        animation-duration: 0.01ms;
        animation-iteration-count: 1;
    }
}

@media (max-width: 768px) {
    #avatar-reaction-bubble.avatar-reaction-bubble {
        --bubble-width: 250px;
        --bubble-height: 192px;
        --bubble-stage-left: 8%;
        --bubble-stage-top: 10%;
        --bubble-stage-width: 70%;
        --bubble-stage-height: 70%;
        --bubble-art-width: 130%;
        --bubble-art-height: 130%;
    }

    #avatar-reaction-bubble[data-side="right"] {
        --bubble-stage-left: 21%;
    }

    #avatar-reaction-bubble .avatar-reaction-bubble-content {
        max-width: 78%;
        font-size: calc(var(--bubble-height) * 0.18);
    }

    #avatar-reaction-bubble-debug-overlay .avatar-reaction-bubble-debug-panel {
        right: 10px;
        top: 10px;
        width: min(280px, calc(100vw - 20px));
        padding: 10px 11px;
        border-radius: 14px;
    }
}