:root {
    --bubub-blue: #31c8ff;
    --bubub-indigo: #2868ff;
    --bubub-violet: #7b35ff;
    --bubub-ink: #07111f;
    --bubub-panel: rgba(255, 255, 255, 0.94);
    --bubub-line: rgba(15, 23, 42, 0.12);
    --bubub-muted: #64748b;
}

.bubub-ai-widget,
.bubub-ai-widget * {
    box-sizing: border-box;
}

.bubub-ai-widget {
    position: fixed;
    right: max(20px, env(safe-area-inset-right));
    bottom: max(20px, env(safe-area-inset-bottom));
    z-index: 9999;
    font-family: Inter, Manrope, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.bubub-ai-toggle {
    position: relative;
    width: 68px;
    height: 68px;
    border: 0;
    border-radius: 22px;
    padding: 0;
    display: grid;
    place-items: center;
    cursor: pointer;
    background: radial-gradient(circle at 26% 18%, rgba(255, 255, 255, 0.38), transparent 30%),
        linear-gradient(135deg, var(--bubub-blue), var(--bubub-indigo) 52%, var(--bubub-violet));
    box-shadow: 0 20px 42px rgba(37, 99, 235, 0.34), 0 0 0 1px rgba(255, 255, 255, 0.38) inset;
    transition: transform 0.22s ease, box-shadow 0.22s ease, filter 0.22s ease;
}

.bubub-ai-toggle:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 24px 54px rgba(37, 99, 235, 0.42), 0 0 0 1px rgba(255, 255, 255, 0.45) inset;
}

.bubub-ai-toggle:active {
    transform: translateY(0) scale(0.98);
}

.bubub-ai-toggle img {
    width: 52px;
    height: 52px;
    border-radius: 18px;
    object-fit: cover;
    box-shadow: 0 10px 22px rgba(2, 6, 23, 0.28);
}

.bubub-ai-pulse {
    position: absolute;
    top: -3px;
    right: -3px;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    border-radius: 999px;
    display: grid;
    place-items: center;
    background: #ff4d6d;
    color: #fff;
    border: 2px solid #fff;
    font-size: 11px;
    font-weight: 900;
    line-height: 1;
}

.bubub-ai-panel {
    position: absolute;
    right: 0;
    bottom: 86px;
    width: min(390px, calc(100vw - 32px));
    height: min(620px, calc(100dvh - 126px));
    min-height: 430px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid rgba(125, 142, 171, 0.26);
    border-radius: 24px;
    background: var(--bubub-panel);
    color: #0f172a;
    box-shadow: 0 28px 70px rgba(2, 6, 23, 0.24);
    backdrop-filter: blur(22px);
    opacity: 0;
    pointer-events: none;
    transform: translateY(14px) scale(0.96);
    transform-origin: bottom right;
    transition: opacity 0.22s ease, transform 0.22s ease;
}

.bubub-ai-widget.is-open .bubub-ai-panel {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0) scale(1);
}

.bubub-ai-header {
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    color: #fff;
    background: radial-gradient(circle at 8% 0%, rgba(49, 200, 255, 0.32), transparent 36%),
        linear-gradient(135deg, #061226, #0c1d3b 48%, #24115a);
}

.bubub-ai-identity {
    display: flex;
    align-items: center;
    gap: 11px;
    min-width: 0;
}

.bubub-ai-avatar {
    width: 44px;
    height: 44px;
    border-radius: 16px;
    object-fit: cover;
    box-shadow: 0 12px 22px rgba(0, 0, 0, 0.26);
}

.bubub-ai-title {
    margin: 0;
    font-size: 15px;
    font-weight: 950;
    letter-spacing: 0;
}

.bubub-ai-status {
    display: block;
    margin-top: 2px;
    font-size: 11px;
    color: #8ee6ff;
    font-weight: 800;
}

.bubub-ai-close {
    width: 38px;
    height: 38px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 12px;
    display: grid;
    place-items: center;
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
}

.bubub-ai-close:hover {
    background: rgba(255, 255, 255, 0.16);
}

.bubub-ai-messages {
    flex: 1;
    min-height: 0;
    padding: 16px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 11px;
    background: linear-gradient(180deg, rgba(241, 245, 249, 0.66), rgba(255, 255, 255, 0.28));
    scroll-behavior: smooth;
}

.bubub-ai-message {
    max-width: 88%;
    padding: 11px 13px;
    border-radius: 17px;
    font-size: 13px;
    line-height: 1.56;
    white-space: pre-wrap;
    word-break: break-word;
}

.bubub-ai-message.assistant {
    align-self: flex-start;
    border-bottom-left-radius: 6px;
    background: #fff;
    color: #142033;
    border: 1px solid rgba(148, 163, 184, 0.22);
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
}

.bubub-ai-message.user {
    align-self: flex-end;
    border-bottom-right-radius: 6px;
    color: #fff;
    background: linear-gradient(135deg, var(--bubub-indigo), var(--bubub-violet));
    box-shadow: 0 12px 26px rgba(79, 70, 229, 0.22);
}

.bubub-ai-code {
    display: block;
    margin-top: 8px;
    padding: 10px;
    border-radius: 12px;
    color: #e2e8f0;
    background: #07111f;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    font-size: 12px;
    white-space: pre;
    overflow-x: auto;
}

.bubub-ai-chips {
    padding: 10px 12px;
    display: flex;
    gap: 8px;
    overflow-x: auto;
    border-top: 1px solid var(--bubub-line);
    background: rgba(255, 255, 255, 0.76);
    scrollbar-width: none;
}

.bubub-ai-chips::-webkit-scrollbar {
    display: none;
}

.bubub-ai-chip {
    flex: 0 0 auto;
    min-height: 34px;
    border: 1px solid rgba(37, 99, 235, 0.18);
    border-radius: 999px;
    padding: 7px 11px;
    color: #1e3a8a;
    background: rgba(219, 234, 254, 0.72);
    cursor: pointer;
    font-size: 12px;
    font-weight: 850;
}

.bubub-ai-chip:hover {
    background: rgba(191, 219, 254, 0.96);
}

.bubub-ai-compose {
    padding: 12px;
    display: grid;
    grid-template-columns: 1fr 42px;
    gap: 9px;
    border-top: 1px solid var(--bubub-line);
    background: rgba(255, 255, 255, 0.92);
}

.bubub-ai-input {
    width: 100%;
    min-height: 42px;
    border: 1px solid rgba(100, 116, 139, 0.24);
    border-radius: 14px;
    padding: 10px 13px;
    outline: none;
    color: #0f172a;
    background: #fff;
    font-size: 16px;
    font-weight: 650;
}

.bubub-ai-input:focus {
    border-color: rgba(49, 200, 255, 0.72);
    box-shadow: 0 0 0 4px rgba(49, 200, 255, 0.14);
}

.bubub-ai-send {
    width: 42px;
    min-height: 42px;
    border: 0;
    border-radius: 14px;
    display: grid;
    place-items: center;
    color: #fff;
    background: linear-gradient(135deg, var(--bubub-blue), var(--bubub-indigo));
    cursor: pointer;
    font-size: 15px;
    font-weight: 950;
}

.bubub-ai-footnote {
    grid-column: 1 / -1;
    color: var(--bubub-muted);
    font-size: 11px;
    font-weight: 750;
}

.dark-theme .bubub-ai-panel,
body.dark-theme .bubub-ai-panel,
body.read-theme-dark .bubub-ai-panel {
    --bubub-panel: rgba(8, 15, 28, 0.94);
    --bubub-line: rgba(148, 163, 184, 0.18);
    color: #e5edf8;
}

.dark-theme .bubub-ai-messages,
body.dark-theme .bubub-ai-messages,
body.read-theme-dark .bubub-ai-messages {
    background: linear-gradient(180deg, rgba(8, 15, 28, 0.72), rgba(15, 23, 42, 0.86));
}

.dark-theme .bubub-ai-message.assistant,
body.dark-theme .bubub-ai-message.assistant,
body.read-theme-dark .bubub-ai-message.assistant {
    color: #e5edf8;
    background: rgba(15, 23, 42, 0.94);
    border-color: rgba(148, 163, 184, 0.18);
}

.dark-theme .bubub-ai-chips,
.dark-theme .bubub-ai-compose,
body.dark-theme .bubub-ai-chips,
body.dark-theme .bubub-ai-compose,
body.read-theme-dark .bubub-ai-chips,
body.read-theme-dark .bubub-ai-compose {
    background: rgba(8, 15, 28, 0.92);
}

.dark-theme .bubub-ai-input,
body.dark-theme .bubub-ai-input,
body.read-theme-dark .bubub-ai-input {
    color: #e5edf8;
    background: rgba(15, 23, 42, 0.98);
    border-color: rgba(148, 163, 184, 0.22);
}

@media (max-width: 560px) {
    .bubub-ai-widget {
        right: max(12px, env(safe-area-inset-right));
        bottom: max(12px, env(safe-area-inset-bottom));
    }

    .bubub-ai-toggle {
        width: 60px;
        height: 60px;
        border-radius: 20px;
    }

    .bubub-ai-toggle img {
        width: 46px;
        height: 46px;
        border-radius: 16px;
    }

    .bubub-ai-panel {
        right: 0;
        bottom: 76px;
        width: calc(100vw - 24px);
        height: min(590px, calc(100dvh - 100px));
        min-height: 390px;
        border-radius: 22px;
    }

    .bubub-ai-message {
        max-width: 92%;
    }
}