/**
 * Book Theme: "Ask the docs" chat panel
 * Uses the colour variables of book-theme.css, so it follows dark mode.
 */

/* "Ask" pill fixed to the bottom right corner, in the site's primary colour */
.chat-toggle {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 199;
    display: inline-flex;
    align-items: center;
    gap: 0.45em;
    padding: 0.6em 1.15em;
    border: 1px solid var(--primary-color);
    border-radius: 999px;
    background: var(--primary-color);
    color: #fff;
    font: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.2;
    cursor: pointer;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.25), 0 8px 24px rgba(0, 0, 0, 0.18);
    transition: background var(--transition-speed, 0.2s), transform var(--transition-speed, 0.2s),
        box-shadow var(--transition-speed, 0.2s);
}

.chat-toggle:hover {
    background: color-mix(in srgb, var(--primary-color) 82%, #000);
    border-color: color-mix(in srgb, var(--primary-color) 82%, #000);
    transform: translateY(-1px);
    box-shadow: 0 5px 14px rgba(0, 0, 0, 0.3), 0 10px 32px rgba(0, 0, 0, 0.22);
}

.chat-toggle:active {
    transform: translateY(0);
}

.chat-toggle:focus-visible {
    outline: 2px solid var(--text-color);
    outline-offset: 2px;
}

.chat-toggle-icon {
    display: block;
    flex: none;
    width: 1.15em;
    height: 1.15em;
    fill: currentColor;
}

body.book-chat-open .chat-toggle {
    display: none;
}

@media (prefers-reduced-motion: reduce) {
    .chat-toggle {
        transition: none;
    }

    .chat-toggle:hover {
        transform: none;
    }
}

.book-chat {
    position: fixed;
    top: var(--header-height);
    right: 0;
    bottom: 0;
    z-index: 200;
    display: flex;
    flex-direction: column;
    width: min(420px, 100vw);
    background: var(--bg-color);
    color: var(--text-color);
    border-left: 1px solid var(--border-color);
    box-shadow: -4px 0 16px rgba(0, 0, 0, 0.12);
    font-size: 0.92rem;
}

.book-chat[hidden] {
    display: none;
}

.book-chat-head {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.book-chat-model {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--text-muted, inherit);
}

.book-chat-model select {
    flex: 1;
    min-width: 0;
    font: inherit;
    color: var(--text-color, inherit);
    background: var(--bg-color, transparent);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.15rem 0.3rem;
}

.book-chat-title {
    flex: 1;
    font-weight: 600;
}

.book-chat-button {
    padding: 0.25rem 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-color);
    font: inherit;
    cursor: pointer;
}

.book-chat-close {
    border: none;
    background: transparent;
    font-size: 1.3rem;
    line-height: 1;
}

.book-chat-log {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem;
}

.book-chat-note {
    color: var(--text-muted);
}

.book-chat-note p {
    margin: 0 0 0.6rem;
}

.book-chat-msg {
    margin: 0 0 0.75rem;
    padding: 0.55rem 0.7rem;
    border-radius: 8px;
    overflow-wrap: anywhere;
}

.book-chat-user {
    margin-left: 2.5rem;
    background: var(--primary-color);
    color: #fff;
    white-space: pre-wrap;
}

.book-chat-reply {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

.book-chat-answer code {
    padding: 0.05rem 0.25rem;
    border-radius: 4px;
    background: var(--code-bg);
    font-size: 0.88em;
}

.book-chat-cite {
    margin-left: 0.1rem;
    font-size: 0.85em;
    text-decoration: none;
}

.book-chat-page {
    color: var(--text-muted);
}

.book-chat-consent p {
    margin: 0 0 0.6rem;
}

.book-chat-consent button {
    margin: 0 0.5rem 0.3rem 0;
}

.book-chat-status {
    min-height: 1.2em;
    padding: 0 0.75rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.book-chat-form {
    display: flex;
    gap: 0.5rem;
    padding: 0.6rem 0.75rem 0.75rem;
    border-top: 1px solid var(--border-color);
}

.book-chat-input {
    flex: 1;
    resize: none;
    padding: 0.45rem 0.55rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-color);
    font: inherit;
}

.book-chat-send {
    align-self: flex-end;
    padding: 0.45rem 0.9rem;
    border: none;
    border-radius: 6px;
    background: var(--primary-color);
    color: #fff;
    font: inherit;
    cursor: pointer;
}

@media (max-width: 600px) {
    .book-chat {
        width: 100vw;
        border-left: none;
    }

    .chat-toggle {
        right: 1rem;
        bottom: 1rem;
        width: 2.9rem;
        height: 2.9rem;
        padding: 0;
        justify-content: center;
    }

    .chat-toggle-label {
        display: none;
    }

    .chat-toggle-icon {
        width: 1.35rem;
        height: 1.35rem;
    }
}

/* Search results: numbered sections with the matching part of their text */
.book-chat-results {
    margin: 0;
    padding-left: 1.4rem;
}

.book-chat-results li {
    margin-bottom: 0.6rem;
}

.book-chat-result-title {
    font-weight: 600;
}

.book-chat-snippet {
    margin-top: 0.15rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    overflow-wrap: anywhere;
}

.book-chat-snippet mark {
    background: color-mix(in srgb, var(--primary-color) 22%, transparent);
    color: var(--text-color);
    border-radius: 2px;
    padding: 0 1px;
}

.book-chat-answer-box {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-color);
}

.book-chat-answer-box .book-chat-answer {
    margin-top: 0.25rem;
}

.book-chat-note-line {
    font-size: 0.8rem;
    color: var(--text-muted);
}