.ai-assistant-widget {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 1080;
    font-family: inherit;
    color: var(--surface-text, var(--tm-text, var(--portal-text, #f1f5f9)));
}

.ai-assistant-toggle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    background: var(--bs-primary, #f97316);
    color: #fff;
    font-size: 1.35rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    cursor: pointer;
    transition: transform 0.2s;
}

.ai-assistant-toggle:hover {
    transform: scale(1.05);
}

.ai-assistant-panel {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: min(360px, calc(100vw - 2rem));
    height: 480px;
    background: var(--surface-card, var(--tm-bg-card, var(--portal-card, #141414)));
    border: 1px solid var(--surface-border, var(--tm-border, var(--portal-border, rgba(255, 255, 255, 0.1))));
    border-radius: 16px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    color: var(--surface-text, var(--tm-text, var(--portal-text, #f1f5f9)));
}

.ai-assistant-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 1rem;
    border-bottom: 1px solid var(--surface-border, var(--tm-border, var(--portal-border, rgba(255, 255, 255, 0.1))));
}

.ai-assistant-header strong {
    color: var(--surface-text, var(--tm-text, var(--portal-text, #f1f5f9)));
}

.ai-assistant-header .text-muted {
    color: var(--surface-muted, var(--tm-text-muted, var(--portal-text-muted, #94a3b8))) !important;
}

.ai-assistant-header .btn-link {
    color: var(--surface-muted, var(--tm-text-muted, var(--portal-text-muted, #94a3b8)));
}

.ai-assistant-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.ai-message {
    display: flex;
}

.ai-message-user {
    justify-content: flex-end;
}

.ai-message-bubble {
    max-width: 85%;
    padding: 0.6rem 0.85rem;
    border-radius: 12px;
    font-size: 0.875rem;
    line-height: 1.45;
    white-space: pre-wrap;
}

.ai-message-bot .ai-message-bubble {
    background: var(--surface-bot-bubble, rgba(255, 255, 255, 0.06));
    color: var(--surface-text, var(--tm-text, var(--portal-text, #f1f5f9)));
}

[data-theme="light"] .ai-message-bot .ai-message-bubble {
    background: var(--surface-bot-bubble, #f1f5f9);
    color: var(--surface-text, #1e293b);
}

.ai-message-user .ai-message-bubble {
    background: var(--bs-primary, #f97316);
    color: #fff;
}

.ai-assistant-form {
    display: flex;
    gap: 0.5rem;
    padding: 0.75rem;
    border-top: 1px solid var(--surface-border, var(--tm-border, var(--portal-border, rgba(255, 255, 255, 0.1))));
}

.ai-assistant-form .form-control {
    background: var(--surface-input-bg, var(--tm-form-input-bg, var(--portal-input-bg, rgba(255, 255, 255, 0.05))));
    border-color: var(--surface-border, var(--tm-border, var(--portal-border, rgba(255, 255, 255, 0.15))));
    color: var(--surface-text, var(--tm-form-input-text, var(--portal-input-text, #f1f5f9)));
}

.ai-assistant-form .form-control::placeholder {
    color: var(--surface-muted, var(--tm-text-muted, var(--portal-text-muted, #94a3b8)));
}

.ai-assistant-form .form-control:focus {
    background: var(--surface-input-bg, var(--tm-form-input-focus-bg, var(--portal-input-focus-bg, rgba(255, 255, 255, 0.08))));
    color: var(--surface-text, var(--tm-form-input-text, var(--portal-input-text, #f1f5f9)));
    box-shadow: none;
    border-color: var(--bs-primary, #f97316);
}

.ai-assistant-typing {
    opacity: 0.6;
    font-style: italic;
}

.portal-ai-card .portal-ai-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--portal-glow, rgba(249, 115, 22, 0.12));
    color: var(--portal-primary, #f97316);
    font-size: 1.25rem;
    flex-shrink: 0;
}