/* =============================================================================
   BALAM AI — Chat / Conversation Components (GLOBAL)
   -----------------------------------------------------------------------------
   Token-driven, dark-surface-first chat UI: in-app chat widget, conversation
   view, message bubbles, gradient send button, and platform badges.

   Promoted out of pages/dashboard.css and pages/chat-history.css so these
   components render correctly EVERYWHERE — including the staff /styleguide
   page, which does not load those page-scoped stylesheets.

   Design notes:
     - Primary target is a DARK surface (modal/panel). Components also degrade
       gracefully on a light card because every value resolves through a
       --balam-* token (which flips in [data-theme] / .dark contexts).
     - User accent  = --balam-primary  (indigo bubble / avatar / send button)
     - Assistant accent = --balam-success (green avatar)
     - Message bubbles use --balam-surface-raised-2 (subtle raised tint) so they
       are visible on both dark and light surfaces.
     - Platform-badge brand hexes (WhatsApp green, Telegram blue, etc.) are kept
       intentionally — they are documented brand colors, allowlisted.

   @requires shared-variables.css  (for all --balam-* design tokens)
   ============================================================================= */

/* =============================================================================
   1. IN-APP CHAT WIDGET — messages container + input bar
      (.chat-widget-messages, .chat-widget-input, .chat-input-wrapper,
       .chat-input-field, .chat-send-btn)
   ============================================================================= */

/* Scrollable messages region ------------------------------------------------ */
.chat-widget-messages {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--balam-spacing-4, 1rem) var(--balam-spacing-6, 1.5rem);
    display: flex;
    flex-direction: column;
    gap: var(--balam-spacing-4, 1rem);
    /* Hidden scrollbar for a cleaner chat surface */
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.chat-widget-messages::-webkit-scrollbar {
    display: none;
}

/* Input bar wrapper --------------------------------------------------------- */
.chat-widget-input {
    padding: var(--balam-spacing-4, 1rem) var(--balam-spacing-6, 1.5rem);
    border-top: 1px solid var(--balam-modal-border, rgba(255, 255, 255, 0.1));
    background: rgba(0, 0, 0, 0.2);
}

.chat-input-wrapper {
    display: flex;
    gap: var(--balam-spacing-3, 0.75rem);
    align-items: center;
}

/* Text input field ---------------------------------------------------------- */
.chat-input-field {
    flex: 1;
    min-width: 0;
    background: var(--balam-modal-input, rgba(255, 255, 255, 0.05));
    border: 1px solid var(--balam-modal-border, rgba(255, 255, 255, 0.1));
    border-radius: var(--balam-radius-lg, 12px);
    padding: 0.875rem var(--balam-spacing-4, 1rem);
    color: var(--balam-modal-text-secondary, #e5e7eb);
    font-family: var(--balam-font-primary, inherit);
    font-size: var(--balam-text-sm, 0.875rem);
    line-height: var(--balam-leading-normal, 1.5);
    outline: none;
    transition: var(--balam-transition-all, all 0.2s ease);
}

.chat-input-field::placeholder {
    color: var(--balam-modal-text-dim, #6b7280);
}

.chat-input-field:focus {
    border-color: var(--balam-primary, #4361ee);
    background: rgba(var(--balam-primary-rgb, 67, 97, 238), 0.10);
    box-shadow: var(--balam-shadow-focus, 0 0 0 3px rgba(67, 97, 238, 0.45));
}

.chat-input-field:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Gradient send button (circular-ish, white icon — NOT a gray box) ---------- */
.chat-send-btn {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    background: var(--balam-gradient-primary, linear-gradient(135deg, #4361ee 0%, #7c3aed 100%));
    border: none;
    border-radius: var(--balam-radius-full, 9999px);
    color: var(--balam-white, #ffffff);
    font-size: var(--balam-text-base, 1rem);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(var(--balam-primary-rgb, 67, 97, 238), 0.35);
    transition: var(--balam-transition-all, all 0.2s ease);
}

.chat-send-btn i,
.chat-send-btn svg {
    color: var(--balam-white, #ffffff);
}

.chat-send-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 14px rgba(var(--balam-primary-rgb, 67, 97, 238), 0.45);
}

.chat-send-btn:active {
    transform: scale(0.98);
}

.chat-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* =============================================================================
   2. IN-APP CHAT MESSAGES — bubbles + avatars
      (.chat-message + .user/.assistant, .message-avatar, .message-content)
   ============================================================================= */

.chat-message {
    display: flex;
    gap: var(--balam-spacing-3, 0.75rem);
    max-width: 85%;
}

.chat-message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.chat-message.assistant {
    align-self: flex-start;
}

/* Avatar (shared by chat + conversation views) ------------------------------ */
.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--balam-radius-md, 8px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--balam-text-sm, 0.875rem);
    font-weight: var(--balam-font-semibold, 600);
    flex-shrink: 0;
    overflow: hidden;
}

.message-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: inherit;
}

/* User = primary accent; Assistant = success accent */
.chat-message.user .message-avatar {
    background: var(--balam-primary, #4361ee);
    color: var(--balam-white, #ffffff);
}

.chat-message.assistant .message-avatar {
    background: rgba(var(--balam-success-rgb, 34, 197, 94), 0.18);
    color: var(--balam-success, #22c55e);
}

/* Message bubble ------------------------------------------------------------ */
.message-content {
    background: rgba(255, 255, 255, 0.06); /* always-dark chat surface (theme-agnostic overlay) */
    border: 1px solid var(--balam-modal-border, rgba(255, 255, 255, 0.08));
    border-radius: var(--balam-radius-lg, 12px);
    padding: var(--balam-spacing-4, 1rem) var(--balam-spacing-5, 1.25rem);
    color: var(--balam-modal-text-secondary, #e5e7eb);
    font-size: var(--balam-text-sm, 0.875rem);
    line-height: var(--balam-leading-relaxed, 1.6);
    min-width: 0;
    max-width: 100%;
    word-wrap: break-word;
    overflow-wrap: break-word;
    overflow-x: auto;
    overflow-y: visible;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.message-content::-webkit-scrollbar {
    display: none;
}

.chat-message.user .message-content {
    background: var(--balam-primary, #4361ee);
    border-color: transparent;
    color: var(--balam-white, #ffffff);
    /* Tail toward the user (right) */
    border-radius: var(--balam-radius-lg, 12px) var(--balam-radius-lg, 12px) var(--balam-radius-sm, 4px) var(--balam-radius-lg, 12px);
}

.chat-message.assistant .message-content {
    /* Tail toward the assistant (left) */
    border-radius: var(--balam-radius-lg, 12px) var(--balam-radius-lg, 12px) var(--balam-radius-lg, 12px) var(--balam-radius-sm, 4px);
}

/* --- Rich markdown inside in-app message bubbles --- */
.message-content p {
    margin: 0 0 var(--balam-spacing-3, 0.75rem);
}

.message-content p:last-child {
    margin-bottom: 0;
}

.message-content h2 {
    font-size: 1.1rem;
    font-weight: var(--balam-font-bold, 700);
    color: var(--balam-modal-text, #ffffff);
    margin: 1.25rem 0 0.75rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--balam-modal-border, rgba(255, 255, 255, 0.1));
}

.message-content h3 {
    font-size: var(--balam-text-base, 1rem);
    font-weight: var(--balam-font-semibold, 600);
    color: var(--balam-modal-text, #ffffff);
    margin: 1rem 0 0.5rem 0;
}

.message-content h4 {
    font-size: 0.9rem;
    font-weight: var(--balam-font-semibold, 600);
    color: var(--balam-primary-light, #a5b4fc);
    margin: 0.875rem 0 0.5rem 0;
}

.message-content h2:first-child,
.message-content h3:first-child,
.message-content h4:first-child {
    margin-top: 0;
}

.message-content strong {
    color: var(--balam-modal-text, #ffffff);
    font-weight: var(--balam-font-semibold, 600);
}

.message-content em {
    color: var(--balam-primary-light, #a5b4fc);
    font-style: italic;
}

.message-content ul,
.message-content ol {
    margin: var(--balam-spacing-3, 0.75rem) 0;
    padding-left: 1.5rem;
}

.message-content li {
    margin-bottom: 0.375rem;
    line-height: var(--balam-leading-snug, 1.5);
}

.message-content li:last-child {
    margin-bottom: 0;
}

.message-content li ul,
.message-content li ol {
    margin: 0.375rem 0;
}

.message-content code {
    background: rgba(0, 0, 0, 0.3);
    padding: 0.125rem 0.375rem;
    border-radius: var(--balam-radius-sm, 4px);
    font-family: var(--balam-font-mono, 'Monaco', 'Consolas', monospace);
    font-size: 0.8rem;
    color: var(--balam-warning, #fbbf24);
}

.message-content pre {
    background: rgba(0, 0, 0, 0.3);
    padding: var(--balam-spacing-3, 0.75rem) var(--balam-spacing-4, 1rem);
    border-radius: var(--balam-radius-md, 8px);
    overflow-x: auto;
    margin: var(--balam-spacing-3, 0.75rem) 0;
}

.message-content pre code {
    background: none;
    padding: 0;
    color: inherit;
}

.message-content hr {
    border: none;
    border-top: 1px solid var(--balam-modal-border, rgba(255, 255, 255, 0.1));
    margin: var(--balam-spacing-4, 1rem) 0;
}

.message-content blockquote {
    border-left: 3px solid var(--balam-primary, #4361ee);
    margin: var(--balam-spacing-3, 0.75rem) 0;
    padding: 0.5rem 0 0.5rem 1rem;
    background: rgba(var(--balam-primary-rgb, 67, 97, 238), 0.10);
    border-radius: 0 var(--balam-radius-md, 8px) var(--balam-radius-md, 8px) 0;
}

.message-content blockquote p {
    margin: 0;
}

.message-content table {
    width: 100%;
    min-width: 300px;
    max-width: 100%;
    border-collapse: collapse;
    margin: var(--balam-spacing-3, 0.75rem) 0;
    font-size: 0.8rem;
    border-radius: var(--balam-radius-md, 8px);
    overflow: hidden;
    border: 1px solid rgba(var(--balam-primary-rgb, 67, 97, 238), 0.3);
    table-layout: auto;
}

.message-content th,
.message-content td {
    border: 1px solid var(--balam-modal-border, rgba(255, 255, 255, 0.1));
    padding: 0.625rem 0.75rem;
    text-align: left;
}

.message-content th {
    background: rgba(var(--balam-primary-rgb, 67, 97, 238), 0.25);
    font-weight: var(--balam-font-semibold, 600);
    color: var(--balam-primary-light, #a5b4fc);
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.5px;
}

.message-content td {
    background: rgba(0, 0, 0, 0.2);
}

.message-content tr:nth-child(even) td {
    background: rgba(0, 0, 0, 0.1);
}

.message-content tr:hover td {
    background: rgba(var(--balam-primary-rgb, 67, 97, 238), 0.10);
}

/* Typing indicator (shown while assistant is responding) -------------------- */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 0.5rem 0;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--balam-primary, #4361ee);
    border-radius: var(--balam-radius-full, 50%);
    animation: balam-chat-typing 1.4s infinite ease-in-out;
}

.typing-indicator span:nth-child(1) {
    animation-delay: 0s;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes balam-chat-typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.4;
    }
    30% {
        transform: translateY(-4px);
        opacity: 1;
    }
}

/* =============================================================================
   3. CONVERSATION VIEW — history / transcript bubbles
      (.conversation-messages, .conversation-message + .user/.assistant,
       .message-content-wrapper, .message-bubble, .message-footer,
       .message-timestamp)
   ============================================================================= */

.conversation-messages {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.conversation-message {
    display: flex;
    gap: var(--balam-spacing-4, 1rem);
    max-width: 80%;
}

.conversation-message.user {
    align-self: flex-end;
    margin-left: auto;
    flex-direction: row-reverse;
}

.conversation-message.assistant {
    align-self: flex-start;
}

/* Conversation avatars are slightly larger than in-app chat avatars */
.conversation-message .message-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--balam-radius-md, 10px);
    font-size: var(--balam-text-base, 1rem);
}

.conversation-message.user .message-avatar {
    background: var(--balam-primary, #4361ee);
    color: var(--balam-white, #ffffff);
}

.conversation-message.assistant .message-avatar {
    background: var(--balam-success, #22c55e);
    color: var(--balam-white, #ffffff);
}

.conversation-message.assistant .message-avatar.has-image {
    background: transparent;
}

/* Wrapper keeps the footer (timestamp/badges) aligned under the bubble ------ */
.message-content-wrapper {
    flex: 1;
    min-width: 0;
}

/* Conversation bubble ------------------------------------------------------- */
.message-bubble {
    background: rgba(255, 255, 255, 0.06); /* always-dark chat surface (theme-agnostic overlay) */
    border: 1px solid var(--balam-modal-border, rgba(255, 255, 255, 0.08));
    border-radius: var(--balam-radius-xl, 14px);
    padding: var(--balam-spacing-4, 1rem) var(--balam-spacing-5, 1.25rem);
    color: var(--balam-modal-text-secondary, #e5e7eb);
    font-size: 0.9375rem;
    line-height: var(--balam-leading-relaxed, 1.6);
    flex: 1;
    overflow: visible;
}

.conversation-message.user .message-bubble {
    background: var(--balam-primary, #4361ee);
    border-color: transparent;
    color: var(--balam-white, #ffffff);
    border-radius: var(--balam-radius-xl, 14px) var(--balam-radius-xl, 14px) var(--balam-radius-sm, 4px) var(--balam-radius-xl, 14px);
}

.conversation-message.assistant .message-bubble {
    border-radius: var(--balam-radius-xl, 14px) var(--balam-radius-xl, 14px) var(--balam-radius-xl, 14px) var(--balam-radius-sm, 4px);
}

/* --- Markdown inside conversation bubbles --- */
.message-bubble h1,
.message-bubble h2,
.message-bubble h3,
.message-bubble h4 {
    margin: 0.75rem 0 0.5rem 0;
    font-weight: var(--balam-font-semibold, 600);
    line-height: var(--balam-leading-tight, 1.3);
    color: inherit;
}

.message-bubble h1:first-child,
.message-bubble h2:first-child,
.message-bubble h3:first-child,
.message-bubble h4:first-child {
    margin-top: 0;
}

.message-bubble h1 {
    font-size: 1.25rem;
}

.message-bubble h2 {
    font-size: 1.125rem;
}

.message-bubble h3 {
    font-size: var(--balam-text-base, 1rem);
}

.message-bubble h4 {
    font-size: 0.9375rem;
}

.message-bubble p {
    margin: 0.5rem 0;
}

.message-bubble p:first-child {
    margin-top: 0;
}

.message-bubble p:last-child {
    margin-bottom: 0;
}

.message-bubble ul,
.message-bubble ol {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

.message-bubble li {
    margin: 0.25rem 0;
    line-height: var(--balam-leading-snug, 1.5);
}

.message-bubble ul ul,
.message-bubble ol ol,
.message-bubble ul ol,
.message-bubble ol ul {
    margin: 0.25rem 0;
}

.message-bubble strong {
    font-weight: var(--balam-font-semibold, 600);
    color: inherit;
}

.message-bubble em {
    font-style: italic;
}

.message-bubble code {
    background: rgba(0, 0, 0, 0.2);
    padding: 0.125rem 0.375rem;
    border-radius: var(--balam-radius-sm, 4px);
    font-family: var(--balam-font-mono, 'SF Mono', Monaco, 'Cascadia Code', monospace);
    font-size: 0.85em;
}

.conversation-message.user .message-bubble code {
    background: rgba(255, 255, 255, 0.2);
}

.message-bubble pre {
    background: rgba(0, 0, 0, 0.3);
    padding: var(--balam-spacing-3, 0.75rem) var(--balam-spacing-4, 1rem);
    border-radius: var(--balam-radius-md, 8px);
    overflow-x: auto;
    margin: var(--balam-spacing-3, 0.75rem) 0;
}

.message-bubble pre code {
    background: none;
    padding: 0;
    font-size: 0.8125rem;
    white-space: pre-wrap;
    word-break: break-word;
}

.message-bubble blockquote {
    border-left: 3px solid rgba(255, 255, 255, 0.3);
    padding-left: var(--balam-spacing-4, 1rem);
    margin: var(--balam-spacing-3, 0.75rem) 0;
    font-style: italic;
    opacity: 0.9;
}

.message-bubble hr {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    margin: var(--balam-spacing-4, 1rem) 0;
}

.message-bubble a {
    color: var(--balam-info, #60a5fa);
    text-decoration: none;
}

.message-bubble a:hover {
    text-decoration: underline;
}

.conversation-message.user .message-bubble a {
    color: #93c5fd;
}

/* KaTeX math rendering inside conversation bubbles */
.message-bubble .katex-display {
    overflow-x: auto;
    overflow-y: hidden;
    margin: 0.5rem 0;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.message-bubble .katex-display::-webkit-scrollbar {
    display: none;
}

.message-bubble .katex {
    font-size: 0.95em;
}

.message-bubble .katex-display > .katex {
    display: inline-block;
    text-align: center;
    width: 100%;
}

.message-bubble .katex-display .katex-html {
    font-size: 0.9em;
}

/* Footer under bubble: input-type badge + timestamp ------------------------- */
.message-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.5rem;
    padding: 0 0.25rem;
}

.message-badges {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.message-input-type {
    display: inline-flex;
    align-items: center;
    font-size: 0.5625rem;
    font-weight: var(--balam-font-semibold, 600);
    padding: 0.125rem 0.375rem;
    border-radius: var(--balam-radius-sm, 4px);
    text-transform: uppercase;
    letter-spacing: 0.2px;
    border: 1px solid transparent;
}

.message-input-type.voice {
    background: rgba(168, 85, 247, 0.12);
    color: #c084fc;
    border-color: rgba(168, 85, 247, 0.2);
}

.message-input-type.text-input {
    background: rgba(59, 130, 246, 0.12);
    color: #93c5fd;
    border-color: rgba(59, 130, 246, 0.2);
}

.message-input-type.audio {
    background: rgba(var(--balam-success-rgb, 34, 197, 94), 0.12);
    color: #86efac;
    border-color: rgba(var(--balam-success-rgb, 34, 197, 94), 0.2);
}

.message-input-type.text-only {
    background: rgba(100, 116, 139, 0.12);
    color: var(--balam-gray-300, #cbd5e1);
    border-color: rgba(100, 116, 139, 0.2);
}

.message-timestamp {
    font-size: 0.6875rem;
    color: var(--balam-modal-text-muted, #9ca3af);
}

/* =============================================================================
   4. PLATFORM BADGES — pill chips with brand-colored icons
      (.platform-badge + platform variants, .platform-text)

      Brand hexes (WhatsApp green, Telegram blue, etc.) are INTENTIONALLY kept:
      they are documented, allowlisted brand colors. Backgrounds use a subtle
      rgba(...,0.12) tint of each brand color so badges read on dark surfaces.
   ============================================================================= */

.platform-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.1875rem 0.5rem;
    border-radius: var(--balam-radius-full, 9999px);
    font-size: 0.625rem;
    font-weight: var(--balam-font-semibold, 600);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    white-space: nowrap;
    flex-shrink: 0;
    border: 1px solid transparent;
}

.platform-badge i {
    font-size: 0.5625rem;
}

.platform-badge .platform-text {
    font-weight: var(--balam-font-semibold, 600);
}

/* --- Brand variants (brand hexes kept intentionally) --- */
.platform-badge.whatsapp {
    background: rgba(37, 211, 102, 0.12);
    color: #128C7E;   /* WhatsApp brand green */
    border-color: rgba(37, 211, 102, 0.25);
}

.platform-badge.messenger {
    background: rgba(0, 132, 255, 0.12);
    color: #0066CC;   /* Messenger brand blue */
    border-color: rgba(0, 132, 255, 0.25);
}

.platform-badge.telegram {
    background: rgba(0, 136, 204, 0.12);
    color: #0066AA;   /* Telegram brand blue */
    border-color: rgba(0, 136, 204, 0.25);
}

.platform-badge.web {
    background: rgba(107, 114, 128, 0.12);
    color: #4b5563;   /* Neutral web gray */
    border-color: rgba(107, 114, 128, 0.25);
}

.platform-badge.gmail {
    background: rgba(234, 67, 53, 0.12);
    color: #C5221F;   /* Gmail brand red */
    border-color: rgba(234, 67, 53, 0.25);
}

.platform-badge.outlook {
    background: rgba(0, 120, 212, 0.12);
    color: #005A9E;   /* Outlook brand blue */
    border-color: rgba(0, 120, 212, 0.25);
}

.platform-badge.email {
    background: rgba(139, 92, 246, 0.12);
    color: #6D28D9;   /* Generic email purple */
    border-color: rgba(139, 92, 246, 0.25);
}

.platform-badge.sip {
    background: rgba(255, 87, 34, 0.12);
    color: #E64A19;   /* SIP / phone orange */
    border-color: rgba(255, 87, 34, 0.25);
}

.platform-badge.instagram {
    background: rgba(225, 48, 108, 0.12);
    color: #C13584;   /* Instagram brand magenta */
    border-color: rgba(225, 48, 108, 0.25);
}

.platform-badge.tiktok {
    background: rgba(0, 0, 0, 0.08);
    color: #010101;   /* TikTok brand black */
    border-color: rgba(0, 0, 0, 0.2);
}

/* On dark surfaces, lift the very-dark TikTok/web text so it stays legible. */
[data-theme="dark"] .platform-badge.tiktok,
.dark .platform-badge.tiktok {
    background: rgba(255, 255, 255, 0.08);
    color: #f1f5f9;
    border-color: rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] .platform-badge.web,
.dark .platform-badge.web {
    color: #cbd5e1;
}