/* Facil AI - UI only, no backend wired up (see CLAUDE.md "Known Gaps").
   Visual language adapted from LibreChat's docs-site "Ask AI" panel
   (components/ai/AskAI.tsx in LibreChat-AI/librechat.ai) - translated from a
   floating docked panel into a full-page layout since this is a sidebar
   tab, not an overlay, and re-tokened onto this app's own design system
   (variables.css) instead of Fumadocs' fd-* tokens. */

.ai-chat-shell {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 220px);
    min-height: 420px;
    margin-top: var(--spacing-lg);
    background: var(--container-background-light);
    border: 1px solid var(--border-color-light);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}
body[data-theme="dark"] .ai-chat-shell {
    background: var(--navy-light);
    border-color: var(--border-color);
}

/* ---- Header ---- */
.ai-chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    padding: 0.875rem 1.25rem;
    border-bottom: 1px solid var(--border-color-light);
}
body[data-theme="dark"] .ai-chat-header { border-color: var(--border-color); }

.ai-chat-header-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-family: var(--font-display);
    color: var(--main-text-color);
    font-size: 0.95rem;
}
.ai-chat-header-title i { color: var(--color-prime); }

.ai-chat-header-actions {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.ai-icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: var(--border-radius);
    border: none;
    background: transparent;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
}
.ai-icon-btn:hover { background: var(--navy-medium); color: var(--main-text-color); }

.ai-text-btn {
    padding: 0.35rem 0.6rem;
    border-radius: var(--border-radius);
    border: none;
    background: transparent;
    color: var(--text-color);
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
}
.ai-text-btn:hover { background: var(--navy-medium); color: var(--main-text-color); }

/* ---- Messages ---- */
.ai-chat-messages {
    flex: 1 1 auto;
    overflow-y: auto;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

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

.ai-bubble-user {
    max-width: 75%;
    background: var(--color-prime);
    color: #fff;
    padding: 0.6rem 0.9rem;
    border-radius: 1rem 1rem 0.25rem 1rem;
    font-size: 0.88rem;
    line-height: 1.5;
}

.ai-message-assistant {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
}

.ai-avatar {
    flex-shrink: 0;
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 999px;
    border: 1px solid var(--border-color-light);
    background: var(--background-prime);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-prime);
    font-size: 0.75rem;
    margin-top: 0.15rem;
}
body[data-theme="dark"] .ai-avatar { border-color: var(--border-color); background: var(--navy-medium); }

.ai-assistant-content { min-width: 0; flex: 1; }

.ai-tool-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.6rem;
    margin-bottom: 0.5rem;
    border-radius: var(--border-radius);
    background: var(--background-prime);
    border: 1px solid var(--border-color-light);
    color: var(--text-color);
    font-size: 0.75rem;
}
body[data-theme="dark"] .ai-tool-chip { border-color: var(--border-color); }

.ai-message-text {
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--main-text-color);
}
.ai-message-text p { margin: 0 0 0.5rem; }
.ai-message-text p:last-child { margin-bottom: 0; }
.ai-message-text ul { margin: 0; padding-left: 1.1rem; }
.ai-message-text li { margin: 0.2rem 0; }

.ai-empty-state {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    text-align: center;
    color: var(--text-color);
    padding: 2rem;
}
.ai-empty-state i {
    font-size: 1.75rem;
    color: var(--color-prime);
    opacity: 0.5;
}
.ai-empty-state p { margin: 0; font-size: 0.85rem; max-width: 28ch; }

.ai-not-built-notice {
    color: var(--text-color);
    font-style: italic;
}

.ai-sources { margin-top: 0.6rem; }

.ai-source-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    border: 1px solid var(--border-color-light);
    background: var(--background-prime);
    color: var(--text-color);
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
}
.ai-source-chip:hover { background: var(--navy-medium); color: var(--main-text-color); }
body[data-theme="dark"] .ai-source-chip { border-color: var(--border-color); }

.ai-message-footer {
    display: flex;
    gap: 0.25rem;
    margin-top: 0.5rem;
}

.ai-icon-btn-sm {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: var(--border-radius);
    border: none;
    background: transparent;
    color: var(--text-color);
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
}
.ai-icon-btn-sm:hover { background: var(--navy-medium); color: var(--main-text-color); }

/* ---- Composer ---- */
.ai-chat-composer {
    flex-shrink: 0;
    padding: 0.85rem 1.25rem 1rem;
    border-top: 1px solid var(--border-color-light);
}
body[data-theme="dark"] .ai-chat-composer { border-color: var(--border-color); }

.ai-chat-starters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.65rem;
}

.ai-starter-chip {
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    border: 1px solid var(--border-color-light);
    background: transparent;
    color: var(--text-color);
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
}
.ai-starter-chip:hover { background: var(--navy-medium); color: var(--main-text-color); }
body[data-theme="dark"] .ai-starter-chip { border-color: var(--border-color); }

.ai-input-row {
    display: flex;
    align-items: flex-end;
    gap: 0.5rem;
    padding: 0.4rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color-light);
    background: var(--background-prime);
}
body[data-theme="dark"] .ai-input-row { border-color: var(--border-color); }
.ai-input-row:focus-within { outline: 2px solid var(--color-prime); outline-offset: 1px; }

.ai-input {
    flex: 1;
    resize: none;
    border: none;
    background: transparent;
    color: var(--main-text-color);
    font-size: 0.88rem;
    font-family: inherit;
    padding: 0.4rem 0.5rem;
    max-height: 7rem;
}
.ai-input:focus-visible { outline: none; }
.ai-input::placeholder { color: var(--text-color); }

.ai-send-btn {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.1rem;
    height: 2.1rem;
    border-radius: var(--border-radius);
    border: none;
    background: var(--color-prime);
    color: #fff;
    cursor: pointer;
    transition: var(--transition);
}
.ai-send-btn:hover { opacity: 0.9; }
.ai-send-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.ai-input-note {
    margin: 0.55rem 0 0;
    text-align: center;
    font-size: 0.7rem;
    color: var(--text-color);
}

@media (max-width: 640px) {
    .ai-chat-shell {
        height: calc(100vh - 260px);
    }
    .ai-bubble-user { max-width: 88%; }
}