/* ==============================================
   AI Workspace - Premium Design System
   Azimut dark-blue brand accent
   ============================================== */

/* ---- Design Tokens ---- */
:root {
    --aw-bg: #f8fafc;
    --aw-fg: #09090b;
    --aw-card: #ffffff;
    --aw-border: #e4e4e7;
    --aw-muted: #f4f4f5;
    --aw-muted-fg: #71717a;
    --aw-primary: #18181b;
    --aw-primary-fg: #fafafa;
    --aw-accent: #2C3E50;
    --aw-accent-light: #4a6a82;
    --aw-emerald: #059669;
    --aw-emerald-light: #10b981;
    --aw-amber: #d97706;
    --aw-destructive: #dc2626;
    --aw-radius-md: 8px;
    --aw-radius-lg: 12px;
    --aw-radius-xl: 16px;
    --aw-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04), 0 1px 3px rgba(0, 0, 0, 0.06);
    --aw-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
    --aw-transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Selection Colors ---- */
body.aw-page ::selection {
    background: rgba(44, 62, 80, 0.15);
    color: var(--aw-fg);
}
body.aw-page ::-moz-selection {
    background: rgba(44, 62, 80, 0.15);
    color: var(--aw-fg);
}

/* ---- Page Shell ---- */
body.aw-page { height: 100vh; overflow: hidden; }
body.aw-page .page-header { margin-bottom: 0; flex-shrink: 0; }
body.aw-page #main-content {
    margin: 0 !important; padding: 0.5rem; max-width: 100%;
    flex-grow: 1; display: flex; flex-direction: column;
    min-height: 0; overflow: hidden;
}
body.aw-page .footer { flex-shrink: 0; }

.aw-workspace {
    display: flex; flex: 1; min-height: 0;
    background: var(--aw-card);
    overflow: hidden; margin: 0 0.5rem;
    border-radius: var(--aw-radius-lg);
    border: 1px solid var(--aw-border);
    box-shadow: var(--aw-shadow-sm);
    position: relative;
    animation: aw-fade-in 0.4s ease-out;
}

@keyframes aw-fade-in {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---- Scrollbars (Chrome/Edge) ---- */
body.aw-page ::-webkit-scrollbar { width: 6px; height: 6px; }
body.aw-page ::-webkit-scrollbar-track { background: transparent; }
body.aw-page ::-webkit-scrollbar-thumb { background: rgba(113, 113, 122, 0.25); border-radius: 999px; }
body.aw-page ::-webkit-scrollbar-thumb:hover { background: rgba(113, 113, 122, 0.45); }

/* ---- Scrollbars (Firefox) ---- */
body.aw-page .rn-tab-content,
body.aw-page .aw-chat-messages,
body.aw-page .rn-insight-viewer-body {
    scrollbar-width: thin;
    scrollbar-color: rgba(113, 113, 122, 0.25) transparent;
}

/* ---- Focus-Visible States ---- */
body.aw-page *:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--aw-accent);
}
body.aw-page .form-control:focus-visible,
body.aw-page .form-select:focus-visible {
    box-shadow: 0 0 0 3px rgba(44, 62, 80, 0.1);
    border-color: var(--aw-accent);
}
body.aw-page .rn-tab-btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--aw-accent);
    border-radius: 6px;
}
body.aw-page .aw-action-btn:focus-visible,
body.aw-page .aw-toggle-btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--aw-accent);
}
body.aw-page .aw-btn-primary:focus-visible,
body.aw-page .aw-btn-outline:focus-visible,
body.aw-page .aw-btn-danger:focus-visible,
body.aw-page .aw-btn-close-panel:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--aw-accent);
}

/* ---- Bootstrap Utility Overrides ---- */
body.aw-page .text-muted {
    color: var(--aw-muted-fg) !important;
}
body.aw-page .text-primary {
    color: var(--aw-accent) !important;
}
body.aw-page .text-secondary {
    color: var(--aw-muted-fg) !important;
}
body.aw-page .btn-outline-secondary {
    color: var(--aw-muted-fg);
    border-color: var(--aw-border);
    font-size: 0.8125rem;
    font-weight: 500;
    border-radius: var(--aw-radius-md);
    background: var(--aw-card);
    transition: all var(--aw-transition);
}
body.aw-page .btn-outline-secondary:hover {
    background: var(--aw-muted);
    border-color: var(--aw-border);
    color: var(--aw-fg);
}
body.aw-page .btn-outline-secondary:focus-visible {
    box-shadow: 0 0 0 2px var(--aw-accent);
}
body.aw-page .btn-link.text-danger {
    color: var(--aw-destructive) !important;
    text-decoration: none;
    transition: all var(--aw-transition);
    opacity: 0.6;
}
body.aw-page .btn-link.text-danger:hover {
    color: var(--aw-destructive) !important;
    text-decoration: none;
    opacity: 1;
    background: #fef2f2;
    border-radius: 4px;
}
body.aw-page .btn-link.text-danger:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--aw-accent);
    border-radius: 4px;
}
body.aw-page .btn-outline-primary {
    color: var(--aw-fg);
    border-color: var(--aw-border);
    font-size: 0.8125rem;
    font-weight: 500;
    border-radius: var(--aw-radius-md);
    transition: all var(--aw-transition);
}
body.aw-page .btn-outline-primary:hover {
    background: var(--aw-primary);
    border-color: var(--aw-primary);
    color: var(--aw-primary-fg);
}
body.aw-page .btn-outline-primary:focus-visible {
    box-shadow: 0 0 0 2px var(--aw-accent);
}

/* ---- Sidebar ---- */
.aw-sidebar {
    width: 340px; min-width: 340px; flex-shrink: 0;
    background: var(--aw-card);
    border-right: 1px solid var(--aw-border);
    display: flex; flex-direction: column;
    overflow: hidden; position: relative;
    margin-left: -340px;
    transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.aw-workspace.sidebar-open .aw-sidebar { margin-left: 0; }

/* ---- Sidebar Header ---- */
.aw-sidebar-header {
    padding: 0.875rem 1rem;
    border-bottom: 1px solid var(--aw-border);
    background: #fafbfc;
}
.aw-sidebar-header h6 {
    margin: 0; font-weight: 600; font-size: 0.85rem;
    color: var(--aw-fg); letter-spacing: -0.01em;
}
.aw-sidebar-header h6 i { color: var(--aw-accent); }

/* Close panel button */
.aw-btn-close-panel {
    background: none; border: none; padding: 0.25rem;
    font-size: 1.1rem; line-height: 1; cursor: pointer;
    color: var(--aw-muted-fg); border-radius: 6px;
    transition: all var(--aw-transition);
}
.aw-btn-close-panel:hover {
    color: var(--aw-fg); background: var(--aw-muted);
}

/* Notebook select */
.aw-notebook-select {
    background: var(--aw-muted);
    color: var(--aw-fg);
    border: 1px solid var(--aw-border);
    border-radius: var(--aw-radius-md);
    font-size: 0.8rem;
    transition: border-color var(--aw-transition), box-shadow var(--aw-transition);
}
.aw-notebook-select:focus {
    border-color: var(--aw-accent);
    box-shadow: 0 0 0 3px rgba(44, 62, 80, 0.1);
}
.aw-notebook-select option { color: var(--aw-fg); background: var(--aw-card); }

/* Sidebar action buttons */
.aw-btn-outline {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.25rem;
    background: var(--aw-card); color: var(--aw-fg);
    border: 1px solid var(--aw-border); border-radius: var(--aw-radius-md);
    font-size: 0.78rem; font-weight: 500; cursor: pointer;
    transition: all var(--aw-transition); text-decoration: none;
}
.aw-btn-outline:hover {
    background: var(--aw-muted); color: var(--aw-fg);
}
.aw-btn-danger {
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--aw-card); color: var(--aw-destructive);
    border: 1px solid #fecaca; border-radius: var(--aw-radius-md);
    font-size: 0.78rem; cursor: pointer;
    transition: all var(--aw-transition);
}
.aw-btn-danger:hover {
    background: #fef2f2; border-color: #fca5a5;
}

/* ---- Tab Bar (Pill Style) ---- */
.rn-tab-bar {
    display: flex;
    background: var(--aw-muted);
    margin: 0.5rem 0.75rem;
    border-radius: var(--aw-radius-md);
    padding: 3px;
    gap: 2px;
}

.rn-tab-btn {
    flex: 1; padding: 0.5rem 0.25rem;
    border: none; background: transparent;
    font-size: 0.75rem; font-weight: 500;
    color: var(--aw-muted-fg); cursor: pointer;
    border-radius: 6px;
    transition: all var(--aw-transition);
    text-align: center;
}
.rn-tab-btn:hover { color: var(--aw-fg); background: rgba(0, 0, 0, 0.03); }
.rn-tab-btn.active {
    color: var(--aw-fg); font-weight: 600;
    background: var(--aw-card);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* ---- Tab Content ---- */
.rn-tab-content { flex: 1; overflow-y: auto; padding: 0.75rem; }
.rn-tab-pane { display: none; }
.rn-tab-pane.active { display: block; }

/* ---- Source Items ---- */
.rn-source-item {
    display: flex; align-items: center; gap: 0.5rem;
    padding: 0.5rem; border-radius: var(--aw-radius-md);
    border: 1px solid var(--aw-border); margin-bottom: 0.4rem;
    cursor: pointer;
    transition: all var(--aw-transition), transform var(--aw-transition);
    font-size: 0.8rem;
    background: var(--aw-card);
}
.rn-source-item:hover {
    background: var(--aw-muted); border-color: #d4d4d8;
    transform: translateX(2px);
}
.rn-source-item.selected {
    background: #edf1f5; border-color: var(--aw-accent);
    box-shadow: 0 0 0 1px rgba(44, 62, 80, 0.15);
}

/* Source status dots */
.rn-source-status { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.rn-source-status.status-ready { background: var(--aw-emerald); }
.rn-source-status.status-processing { background: var(--aw-amber); animation: rn-pulse 1s infinite; }
.rn-source-status.status-pending { background: #a1a1aa; }
.rn-source-status.status-error { background: var(--aw-destructive); }

@keyframes rn-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Source progress */
.rn-source-progress { height: 3px; background: var(--aw-muted); border-radius: 3px; margin-top: 4px; overflow: hidden; }
.rn-source-progress-bar { height: 100%; background: var(--aw-accent); border-radius: 3px; transition: width 0.3s ease; width: 0%; }
.rn-source-progress-text { font-size: 0.6rem; color: var(--aw-muted-fg); margin-top: 1px; }

/* Source details */
.rn-source-type-icon { font-size: 0.9rem; color: var(--aw-muted-fg); width: 18px; text-align: center; flex-shrink: 0; }
.rn-source-info { flex: 1; min-width: 0; }
.rn-source-title {
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    font-weight: 500; color: var(--aw-fg); font-size: 0.8rem;
}
.rn-source-meta { font-size: 0.65rem; color: var(--aw-muted-fg); }

/* Add Source button — full-width inside sidebar */
.aw-btn-primary {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.375rem;
    background: var(--aw-primary); color: var(--aw-primary-fg);
    border: 1px solid var(--aw-primary); border-radius: var(--aw-radius-md);
    font-size: 0.8rem; font-weight: 500; cursor: pointer;
    transition: all var(--aw-transition);
}
.aw-btn-primary:hover {
    background: #27272a; border-color: #27272a; color: var(--aw-primary-fg);
}
.aw-sidebar .aw-btn-primary {
    width: 100%;
    padding: 0.5rem 0.75rem;
}

/* ---- Note Items ---- */
.rn-note-item {
    padding: 0.5rem; border-radius: var(--aw-radius-md);
    border: 1px solid var(--aw-border); margin-bottom: 0.4rem;
    cursor: pointer;
    transition: all var(--aw-transition), transform var(--aw-transition);
    background: var(--aw-card);
}
.rn-note-item:hover {
    background: var(--aw-muted); border-color: #d4d4d8;
    transform: translateX(2px);
}

/* ---- Insight Items ---- */
.rn-insight-item {
    padding: 0.5rem; border-radius: var(--aw-radius-md);
    border: 1px solid var(--aw-border); margin-bottom: 0.4rem;
    cursor: pointer;
    transition: all var(--aw-transition), transform var(--aw-transition);
    background: var(--aw-card);
}
.rn-insight-item:hover {
    background: var(--aw-muted); border-color: #d4d4d8;
    transform: translateX(2px);
}

/* ---- Sidebar Empty State ---- */
.rn-sidebar-empty {
    text-align: center; color: #a1a1aa;
    padding: 2rem 0.5rem; font-size: 0.8rem;
}
.rn-sidebar-empty i { font-size: 2rem; display: block; margin-bottom: 0.5rem; color: var(--aw-border); }

/* ---- Insight Viewer ---- */
.rn-insight-viewer { flex: 1; overflow-y: auto; padding: 0; display: flex; flex-direction: column; }
.rn-insight-viewer-header {
    display: flex; align-items: center; gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--aw-border);
    background: var(--aw-card); flex-shrink: 0;
}
.rn-insight-viewer-header .btn-close-viewer {
    margin-left: auto; background: none; border: none;
    font-size: 1.1rem; color: var(--aw-muted-fg); cursor: pointer;
    padding: 0.25rem 0.5rem; border-radius: 6px; line-height: 1;
    transition: all var(--aw-transition);
}
.rn-insight-viewer-header .btn-close-viewer:hover {
    color: var(--aw-fg); background: var(--aw-muted);
}
.rn-insight-viewer-body {
    flex: 1; overflow-y: auto;
    padding: 1.25rem 1.5rem;
    font-size: 0.9rem; line-height: 1.6; color: var(--aw-fg);
}
.rn-insight-viewer-footer {
    border-top: 1px solid var(--aw-border);
    padding: 0.75rem 1.25rem; flex-shrink: 0;
}

/* ==============================
   CHAT MAIN AREA
   ============================== */

.aw-main {
    flex: 1; display: flex; flex-direction: column;
    overflow: hidden; background: var(--aw-bg); min-width: 0;
    transition: flex 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Chat Header Bar ---- */
.aw-chat-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 0.35rem 1rem;
    border-bottom: 1px solid var(--aw-border);
    background: var(--aw-card);
    flex-shrink: 0;
}
.aw-chat-header-btn {
    background: none; border: none; cursor: pointer;
    font-size: 0.75rem; color: var(--aw-muted-fg);
    padding: 0.25rem 0.5rem; border-radius: 6px;
    transition: all 0.15s;
}
.aw-chat-header-btn:hover {
    background: rgba(44, 62, 80, 0.1); color: var(--aw-accent);
}
.aw-history-wrapper {
    position: relative;
}
.aw-history-dropdown {
    position: absolute; top: 100%; right: 0; z-index: 50;
    background: var(--aw-card); border: 1px solid var(--aw-border);
    border-radius: var(--aw-radius-md); box-shadow: var(--aw-shadow-md);
    width: 320px; max-height: 400px; overflow-y: auto;
    margin-top: 0.25rem;
}
.aw-history-list {
    padding: 0.25rem;
}
.aw-history-item {
    padding: 0.5rem 0.65rem; border-radius: 6px; cursor: pointer;
    transition: background 0.15s;
}
.aw-history-item:hover {
    background: rgba(44, 62, 80, 0.08);
}
.aw-history-preview {
    font-size: 0.78rem; color: var(--aw-fg);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    line-height: 1.4;
}
.aw-history-meta {
    display: flex; align-items: center; gap: 0.5rem;
    font-size: 0.65rem; color: var(--aw-muted-fg); margin-top: 0.15rem;
}
.aw-history-badge {
    background: rgba(44, 62, 80, 0.15); color: var(--aw-accent);
    padding: 0.05rem 0.35rem; border-radius: 4px; font-size: 0.6rem;
    font-weight: 500; white-space: nowrap; max-width: 120px;
    overflow: hidden; text-overflow: ellipsis;
}
.aw-history-badge.nb {
    background: rgba(44, 62, 80, 0.1); color: var(--aw-muted-fg);
}
.aw-history-count {
    margin-left: auto;
}
.aw-history-delete {
    background: none; border: none; cursor: pointer; padding: 0.1rem 0.3rem;
    color: var(--aw-muted-fg); font-size: 0.65rem; border-radius: 4px;
    opacity: 0; transition: all 0.15s;
}
.aw-history-item:hover .aw-history-delete {
    opacity: 1;
}
.aw-history-delete:hover {
    color: #e74c3c; background: rgba(231, 76, 60, 0.1);
}
.aw-history-loading, .aw-history-empty {
    text-align: center; padding: 1.5rem 0.5rem;
    font-size: 0.8rem; color: var(--aw-muted-fg);
}

.aw-chat-messages {
    flex: 1; overflow-y: auto;
    padding: 1.5rem;
    display: flex; flex-direction: column; gap: 0.75rem;
}

.aw-chat-inner {
    max-width: 900px; width: 100%; margin: 0 auto;
    display: flex; flex-direction: column; gap: 0.75rem; flex: 1;
}

/* ---- Chat Messages ---- */
.rn-message { max-width: 85%; animation: rn-msg-in 0.2s ease-out; }

@keyframes rn-msg-in {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.rn-message.user { align-self: flex-end; }
.rn-message.assistant {
    align-self: flex-start;
    max-width: 92%;
}

.rn-message-bubble {
    padding: 1rem 1.35rem; border-radius: var(--aw-radius-lg);
    font-size: 0.88rem; line-height: 1.55; word-wrap: break-word;
    overflow: hidden; min-width: 0;
}

/* User bubble: near-black with subtle gradient */
.rn-message.user .rn-message-bubble {
    background: linear-gradient(135deg, #18181b, #27272a);
    color: var(--aw-primary-fg);
    border-bottom-right-radius: 4px;
}

/* Assistant bubble: white card with subtle border */
.rn-message.assistant .rn-message-bubble {
    background: var(--aw-card); color: var(--aw-fg);
    border: 1px solid var(--aw-border);
    border-bottom-left-radius: 4px;
    box-shadow: var(--aw-shadow-sm);
}

/* Links inside message bubbles */
.rn-message.assistant .rn-message-bubble a {
    color: var(--aw-accent);
    text-decoration: underline;
    text-decoration-color: rgba(44, 62, 80, 0.3);
    text-underline-offset: 2px;
    transition: text-decoration-color var(--aw-transition);
}
.rn-message.assistant .rn-message-bubble a:hover {
    text-decoration-color: var(--aw-accent);
}
.rn-message.user .rn-message-bubble a {
    color: #c7d2fe;
    text-decoration: underline;
    text-decoration-color: rgba(199, 210, 254, 0.4);
    text-underline-offset: 2px;
    transition: text-decoration-color var(--aw-transition);
}
.rn-message.user .rn-message-bubble a:hover {
    color: #dce3ea;
    text-decoration-color: #c7d2fe;
}

.rn-sources-cited { font-size: 0.7rem; color: var(--aw-muted-fg); margin-top: 0.25rem; padding-left: 0.25rem; }

/* ---- Thinking Indicator (Azimut Star) ---- */
.rn-thinking {
    display: none; padding: 0.5rem 1.5rem 1rem;
    color: var(--aw-muted-fg); font-size: 0.85rem;
    gap: 0.5rem; align-items: center;
    max-width: 900px; margin: 0 auto; width: 100%;
}
.rn-thinking.visible {
    display: inline-flex;
    background: #2C3E50;
    border-radius: 999px;
    padding: 0.5rem 1rem;
    gap: 0.6rem;
    margin: 0 auto 0.75rem;
    width: auto;
    max-width: 900px;
}
.aw-thinking-star {
    width: 22px; height: 22px;
    object-fit: contain;
    border-radius: 50%;
    animation: aw-star-spin 2.5s linear infinite;
    filter: drop-shadow(0 0 4px rgba(166, 188, 206, 0.5));
}
@keyframes aw-star-spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}
.rn-thinking span {
    animation: aw-thinking-pulse 2s ease-in-out infinite;
    color: #ffffff;
    font-weight: 500;
    font-size: 0.8rem;
    letter-spacing: -0.01em;
}
@keyframes aw-thinking-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ---- Markdown Tables in Chat ---- */
.aw-table-wrap {
    overflow-x: auto;
    margin: 0.5rem 0;
    border-radius: 8px;
    border: 1px solid #d1d5db;
}
.aw-md-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
    line-height: 1.4;
}
.aw-md-table thead th {
    background: #2C3E50;
    color: #fff;
    font-weight: 600;
    padding: 0.45rem 0.65rem;
    white-space: nowrap;
    border-bottom: 2px solid #1a2a38;
}
.aw-md-table tbody td {
    padding: 0.4rem 0.65rem;
    border-bottom: 1px solid #e5e7eb;
    color: var(--aw-fg, #1e293b);
}
.aw-md-table tbody tr:nth-child(even) {
    background: #f8fafc;
}
.aw-md-table tbody tr:hover {
    background: #edf1f5;
}

/* ---- PDF Multi-Upload Drop Zone ---- */
.aw-pdf-dropzone {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    padding: 2rem 1rem; border: 2px dashed var(--aw-border);
    border-radius: var(--aw-radius-lg); background: #f8fafc;
    text-align: center; color: var(--aw-muted-fg); cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}
.aw-pdf-dropzone:hover, .aw-pdf-dropzone.dragover {
    border-color: var(--aw-accent); background: #edf1f5;
}
.aw-pdf-dropzone i { font-size: 2rem; margin-bottom: 0.5rem; color: var(--aw-accent); }
.aw-pdf-dropzone div { font-size: 0.88rem; font-weight: 500; }

.aw-pdf-file-list {
    margin-top: 0.5rem; display: flex; flex-direction: column; gap: 0.35rem;
}
.aw-pdf-file-item {
    display: flex; align-items: center; gap: 0.5rem;
    padding: 0.35rem 0.6rem; border-radius: 6px;
    background: #f1f5f9; font-size: 0.8rem;
}
.aw-pdf-file-item i { color: #e74c3c; font-size: 0.85rem; }
.aw-pdf-file-item .aw-pdf-file-name {
    flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.aw-pdf-file-item .aw-pdf-file-remove {
    background: none; border: none; color: var(--aw-muted-fg); cursor: pointer;
    font-size: 0.75rem; padding: 0 0.25rem;
}
.aw-pdf-file-item .aw-pdf-file-remove:hover { color: #e74c3c; }

/* ---- Compare Guided Flow (chat buttons) ---- */
.aw-compare-flow strong {
    display: block; margin-bottom: 0.5rem; font-size: 0.85rem;
}
.aw-chat-actions {
    display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 0.6rem;
}
.aw-chat-chip {
    display: inline-flex; align-items: center;
    padding: 0.3rem 0.65rem; border-radius: 20px;
    font-size: 0.78rem; cursor: pointer;
    background: #f1f5f9; border: 1px solid var(--aw-border);
    color: var(--aw-fg); transition: all 0.15s ease;
    max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.aw-chat-chip:hover { background: #e2e8f0; }
.aw-chat-chip.selected {
    background: var(--aw-accent); color: #fff; border-color: var(--aw-accent);
}
.aw-chat-chip:disabled { opacity: 0.6; cursor: default; }

.aw-chat-option {
    display: inline-flex; align-items: center;
    padding: 0.35rem 0.75rem; border-radius: 8px;
    font-size: 0.8rem; cursor: pointer;
    background: #fff; border: 1px solid var(--aw-border);
    color: var(--aw-fg); transition: all 0.15s ease;
}
.aw-chat-option:hover { background: #f1f5f9; border-color: var(--aw-accent); }
.aw-chat-option.selected {
    background: var(--aw-accent); color: #fff; border-color: var(--aw-accent);
}
.aw-chat-option:disabled:not(.selected) { opacity: 0.4; cursor: default; }

.aw-chat-submit {
    display: inline-flex; align-items: center;
    padding: 0.4rem 1rem; border-radius: 8px;
    font-size: 0.82rem; font-weight: 500; cursor: pointer;
    background: var(--aw-accent); color: #fff; border: none;
    transition: all 0.15s ease;
}
.aw-chat-submit:hover:not(:disabled) { background: var(--aw-accent-light); }
.aw-chat-submit:disabled { opacity: 0.4; cursor: default; }

/* ---- Transformation Bar ---- */
.rn-transform-bar {
    display: none; gap: 0.4rem;
    padding: 0.5rem 1rem;
    border-top: 1px solid var(--aw-border);
    background: var(--aw-card);
    flex-wrap: wrap; align-items: center; justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
}
.rn-transform-bar.visible {
    display: flex;
    opacity: 1;
}
.rn-transform-bar .btn {
    font-size: 0.75rem; padding: 0.25rem 0.6rem;
    background: var(--aw-card); color: var(--aw-fg);
    border: 1px solid var(--aw-border); border-radius: var(--aw-radius-md);
    font-weight: 500; transition: all var(--aw-transition);
}
.rn-transform-bar .btn:hover {
    background: var(--aw-muted); color: var(--aw-fg);
    border-color: #d4d4d8;
}

/* ---- Chat Input Area ---- */
.aw-input-area {
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--aw-border);
    background: var(--aw-card);
}
.aw-input-inner {
    max-width: 900px; margin: 0 auto;
    display: flex; align-items: center; gap: 0.5rem;
}

/* Panel toggle button */
.aw-toggle-btn {
    background: none; border: 1px solid var(--aw-border);
    border-radius: var(--aw-radius-md);
    padding: 0.45rem 0.6rem;
    color: var(--aw-muted-fg); cursor: pointer;
    font-size: 1rem; transition: all var(--aw-transition);
    flex-shrink: 0; line-height: 1;
}
.aw-toggle-btn:hover {
    background: var(--aw-muted); border-color: #d4d4d8; color: var(--aw-fg);
}
.aw-toggle-btn.active {
    background: #edf1f5; border-color: var(--aw-accent); color: var(--aw-accent);
}

/* ---- Chat Hint (empty state) — Premium ---- */
.aw-chat-hint {
    text-align: center; color: #a1a1aa;
    padding: 3rem 1rem; margin: auto;
}
.aw-chat-hint i {
    font-size: 2.5rem; margin-bottom: 1.25rem;
    display: flex;
    align-items: center; justify-content: center;
    width: 72px; height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, #edf1f5, #dce3ea);
    color: var(--aw-accent);
    margin-left: auto; margin-right: auto;
    box-shadow: 0 0 24px rgba(44, 62, 80, 0.1);
}
.aw-chat-hint p {
    color: var(--aw-fg); font-weight: 600;
    font-size: 1.125rem;
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}
.aw-chat-hint small {
    font-size: 0.8125rem;
    line-height: 1.5;
}

/* ---- Action Buttons (Mic, Upload, Anon) ---- */
.aw-action-btn {
    background: none; border: 1px solid var(--aw-border);
    border-radius: var(--aw-radius-md);
    padding: 0.45rem 0.6rem;
    color: var(--aw-muted-fg); cursor: pointer;
    font-size: 1rem; transition: all var(--aw-transition);
    flex-shrink: 0; line-height: 1;
}
.aw-action-btn:hover {
    background: var(--aw-muted); border-color: #d4d4d8; color: var(--aw-fg);
}
.aw-action-btn.active {
    background: #edf1f5; border-color: var(--aw-accent); color: var(--aw-accent);
}
.aw-action-btn.recording {
    background: var(--aw-destructive); color: #fff;
    border-color: var(--aw-destructive);
    animation: aw-pulse 1s infinite;
}
@keyframes aw-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.7; } }

/* ---- Chat Input Group ---- */
body.aw-page .aw-input-area .form-control {
    border-color: #2C3E50;
    border-radius: 20px 0 0 20px;
    font-size: 0.9rem;
    transition: border-color var(--aw-transition), box-shadow var(--aw-transition);
}
body.aw-page .aw-input-area .form-control:focus {
    border-color: #2C3E50;
    box-shadow: 0 0 0 3px rgba(44, 62, 80, 0.15);
}

/* Send button */
body.aw-page .aw-input-area .btn-primary {
    background: #2C3E50; border-color: #2C3E50;
    border-radius: 0 20px 20px 0; padding: 0.5rem 1.25rem;
    transition: all var(--aw-transition);
}
body.aw-page .aw-input-area .btn-primary:hover {
    background: #1a2a38; border-color: #1a2a38;
}

/* ---- @ Mention Dropdown ---- */
.aw-mention-dropdown {
    position: absolute; bottom: 100%; left: 0; right: 0;
    background: var(--aw-card); border: 1px solid var(--aw-border);
    border-radius: var(--aw-radius-md);
    box-shadow: var(--aw-shadow-md);
    max-height: 200px; overflow-y: auto; z-index: 100;
    margin-bottom: 4px;
}
.aw-mention-item {
    padding: 0.5rem 0.75rem; cursor: pointer;
    font-size: 0.85rem; color: var(--aw-fg);
    display: flex; align-items: center; gap: 0.5rem;
    border-bottom: 1px solid var(--aw-muted);
}
.aw-mention-item:last-child { border-bottom: none; }
.aw-mention-item:hover, .aw-mention-item.active {
    background: var(--aw-muted);
}
.aw-mention-item i { color: var(--aw-accent); font-size: 0.8rem; }

/* ---- Recording Controls ---- */
.aw-recording-bar { display: none; flex: 1; font-size: 0.85rem; color: var(--aw-destructive); }
.aw-recording-bar.visible { display: flex; }
.aw-rec-ready, .aw-rec-active {
    display: flex; align-items: center; gap: 0.6rem; flex: 1;
    padding: 0.4rem 0.75rem;
    background: #fef2f2; border: 1px solid var(--aw-border); border-radius: 20px;
}
.aw-rec-ready span { color: var(--aw-muted-fg); font-size: 0.8rem; }
.btn-rec-start {
    margin-left: auto; background: var(--aw-destructive); color: #fff; border: none;
    border-radius: 6px; padding: 0.3rem 0.75rem; font-size: 0.8rem; cursor: pointer;
    transition: all var(--aw-transition);
}
.btn-rec-start:hover { background: #b91c1c; }
.btn-rec-cancel {
    background: none; border: none; font-size: 1.2rem; color: var(--aw-muted-fg);
    cursor: pointer; padding: 0 0.3rem; line-height: 1;
    transition: color var(--aw-transition);
}
.btn-rec-cancel:hover { color: var(--aw-fg); }
.aw-rec-active { border-color: var(--aw-destructive); }
.aw-recording-dot {
    width: 10px; height: 10px; border-radius: 50%;
    background: var(--aw-destructive);
    animation: aw-pulse 1s infinite;
    flex-shrink: 0;
    box-shadow: 0 0 8px rgba(220, 38, 38, 0.5);
}
.aw-recording-timer {
    font-family: monospace; font-weight: 600; color: var(--aw-fg);
    font-variant-numeric: tabular-nums;
}
.btn-stop {
    margin-left: auto; background: var(--aw-destructive); color: #fff; border: none;
    border-radius: 6px; padding: 0.3rem 0.75rem; font-size: 0.8rem; cursor: pointer;
    transition: all var(--aw-transition);
}
.btn-stop:hover { background: #b91c1c; }
.aw-lang-select {
    border: 1px solid var(--aw-border); border-radius: 6px; padding: 0.3rem 0.4rem;
    font-size: 0.78rem; color: var(--aw-fg); background: var(--aw-card); flex-shrink: 0;
}

/* ==============================
   MARKDOWN IN CHAT BUBBLES
   ============================== */

.rn-message-bubble h3, .rn-message-bubble h4, .rn-message-bubble h5 {
    margin: 0.5rem 0 0.25rem; font-size: 0.95rem;
}
.rn-message.assistant .rn-message-bubble h3,
.rn-message.assistant .rn-message-bubble h4,
.rn-message.assistant .rn-message-bubble h5 { color: var(--aw-fg); }
.rn-message.user .rn-message-bubble h3,
.rn-message.user .rn-message-bubble h4,
.rn-message.user .rn-message-bubble h5 { color: var(--aw-primary-fg); }

.rn-message-bubble ul { margin: 0.25rem 0; padding-left: 1.25rem; }
.rn-message-bubble li { margin-bottom: 0.15rem; }
.rn-message-bubble pre {
    background: var(--aw-muted); border-radius: 6px;
    padding: 0.5rem 0.75rem; overflow-x: auto;
    font-size: 0.8rem; margin: 0.4rem 0;
    border: 1px solid var(--aw-border);
}
.rn-message.user .rn-message-bubble pre {
    background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.15);
}
.rn-message.user .rn-message-bubble pre code {
    color: #dce3ea;
}
.rn-message-bubble code {
    background: var(--aw-muted); padding: 0.1rem 0.3rem;
    border-radius: 3px; font-size: 0.82rem;
}
.rn-message.user .rn-message-bubble code { background: rgba(255, 255, 255, 0.15); color: #dce3ea; }
.rn-message-bubble pre code { background: none; padding: 0; }
.rn-message-bubble strong { font-weight: 600; }

/* ---- Confidential Badge ---- */
.rn-message .aw-confidential-badge {
    font-size: 0.65rem; color: var(--aw-accent); margin-top: 0.25rem;
}
.rn-message .aw-confidential-badge i { margin-right: 0.2rem; }

/* ---- Transcript Messages ---- */
.rn-message.transcript { align-self: flex-start; cursor: pointer; }
.rn-message.transcript .rn-message-bubble {
    background: #edf1f5; border: 1px dashed var(--aw-accent);
}
.rn-message.transcript:hover .rn-message-bubble { background: #dce3ea; }
.rn-transcript-label { font-size: 0.7rem; color: var(--aw-accent); font-weight: 600; margin-bottom: 0.25rem; }
.rn-transcript-text { font-size: 0.88rem; color: var(--aw-fg); line-height: 1.55; }
.rn-transcript-hint { font-size: 0.65rem; color: var(--aw-muted-fg); margin-top: 0.35rem; }

/* ==============================
   DROP ZONE OVERLAY
   ============================== */

.rn-drop-overlay {
    display: none; position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(9, 9, 11, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 100;
    border: 3px dashed var(--aw-accent);
    border-radius: var(--aw-radius-md);
    align-items: center; justify-content: center; flex-direction: column;
    color: #fff; font-size: 1rem;
}
.rn-drop-overlay.visible { display: flex; }
.rn-drop-overlay i {
    font-size: 2.5rem; margin-bottom: 0.75rem; color: var(--aw-accent-light);
    animation: aw-drop-float 2s ease-in-out infinite;
}
@keyframes aw-drop-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}
@keyframes aw-drop-dash {
    to { border-color: var(--aw-accent-light); }
}
.rn-drop-overlay.visible {
    animation: aw-drop-dash 1.5s ease-in-out infinite alternate;
}

/* ==============================
   MODALS
   ============================== */

body.aw-page .modal-backdrop.show {
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

body.aw-page .modal-content {
    border-radius: var(--aw-radius-xl);
    border: 1px solid var(--aw-border);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

body.aw-page .modal-header {
    background: var(--aw-card);
    border-bottom: 1px solid var(--aw-border);
    padding: 1rem 1.25rem;
}
body.aw-page .modal-header .modal-title {
    font-size: 1rem; font-weight: 600; color: var(--aw-fg);
}
body.aw-page .modal-header .btn-close {
    opacity: 0.5;
    transition: opacity var(--aw-transition);
    border-radius: 6px;
    padding: 0.5rem;
}
body.aw-page .modal-header .btn-close:hover {
    opacity: 1;
}
body.aw-page .modal-header .btn-close:focus-visible {
    box-shadow: 0 0 0 2px var(--aw-accent);
    opacity: 1;
}
body.aw-page .modal-body { padding: 1.25rem; }
body.aw-page .modal-footer {
    border-top: 1px solid var(--aw-border);
    padding: 0.875rem 1.25rem;
}

/* Modal form controls */
body.aw-page .modal .form-control,
body.aw-page .modal .form-select {
    border-color: var(--aw-border);
    border-radius: var(--aw-radius-md);
    font-size: 0.8125rem;
    transition: border-color var(--aw-transition), box-shadow var(--aw-transition);
}
body.aw-page .modal .form-control:focus,
body.aw-page .modal .form-select:focus {
    border-color: var(--aw-accent);
    box-shadow: 0 0 0 3px rgba(44, 62, 80, 0.1);
}
body.aw-page .modal .form-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--aw-fg);
}

/* Modal buttons */
body.aw-page .modal .btn-primary {
    background: var(--aw-primary); border-color: var(--aw-primary);
    font-size: 0.8125rem; font-weight: 500; border-radius: var(--aw-radius-md);
}
body.aw-page .modal .btn-primary:hover {
    background: #27272a; border-color: #27272a;
}
body.aw-page .modal .btn-secondary {
    background: var(--aw-muted); border-color: var(--aw-border);
    color: var(--aw-fg); font-size: 0.8125rem; border-radius: var(--aw-radius-md);
}
body.aw-page .modal .btn-secondary:hover {
    background: #e4e4e7; border-color: #d4d4d8;
}
body.aw-page .modal .btn-outline-primary {
    color: var(--aw-fg); border-color: var(--aw-border);
    font-size: 0.8125rem; font-weight: 500; border-radius: var(--aw-radius-md);
}
body.aw-page .modal .btn-outline-primary:hover {
    background: var(--aw-primary); border-color: var(--aw-primary);
    color: var(--aw-primary-fg);
}

/* Modal processing spinner override */
body.aw-page .modal .spinner-border.text-primary {
    color: var(--aw-accent) !important;
}

/* Modal tabs as pills */
body.aw-page .aw-tabs {
    display: flex; flex-wrap: wrap;
    background: var(--aw-muted);
    border-radius: var(--aw-radius-md);
    padding: 3px; gap: 2px;
    border: none; margin-bottom: 1rem;
}
body.aw-page .aw-tabs .nav-item { margin: 0; }
body.aw-page .aw-tabs .nav-link {
    color: var(--aw-muted-fg); font-weight: 500;
    font-size: 0.8125rem;
    padding: 0.4375rem 0.875rem;
    border-radius: 6px; border: none;
    background: transparent;
    transition: all var(--aw-transition);
}
body.aw-page .aw-tabs .nav-link i { font-size: 0.75rem; }
body.aw-page .aw-tabs .nav-link:hover {
    color: var(--aw-fg); background: rgba(0, 0, 0, 0.04);
}
body.aw-page .aw-tabs .nav-link.active {
    color: var(--aw-fg); font-weight: 600;
    background: var(--aw-card);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Badge overrides */
body.aw-page .badge.bg-info {
    background: #edf1f5 !important; color: var(--aw-accent) !important;
    font-weight: 500; font-size: 0.6875rem; border-radius: 4px;
}

/* ==============================
   RESPONSIVE
   ============================== */

/* iPad / small laptops */
@media (max-width: 1024px) {
    .aw-sidebar {
        width: 300px; min-width: 300px;
        margin-left: -300px;
    }
}

/* Tablets & phones */
@media (max-width: 768px) {
    .aw-workspace { margin: 0 0.25rem 0.25rem; }

    /* Sidebar overlay with dark backdrop */
    .aw-sidebar {
        position: absolute; top: 0; left: 0; bottom: 0;
        width: 340px; min-width: 340px;
        z-index: 50; margin-left: -340px;
        box-shadow: 2px 0 12px rgba(0, 0, 0, 0.08);
    }
    .aw-workspace.sidebar-open .aw-sidebar { margin-left: 0; }

    /* Dark backdrop behind sidebar on mobile (clickable to close) */
    .aw-workspace.sidebar-open .aw-sidebar-backdrop {
        display: block;
        position: absolute;
        top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(9, 9, 11, 0.4);
        z-index: 40;
    }
    .aw-sidebar-backdrop { display: none; }
    .aw-workspace.sidebar-open .aw-sidebar {
        z-index: 50;
    }

    .aw-chat-messages { padding: 1rem; }
    .aw-input-area { padding: 0.5rem 0.75rem; }

    /* History dropdown: prevent overflow */
    .aw-history-dropdown {
        width: 300px;
        max-width: calc(100vw - 2rem);
    }

    /* Action buttons: minimum 44px touch targets */
    .aw-action-btn,
    .aw-toggle-btn {
        min-width: 44px;
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    /* Shrink action button group spacing */
    .aw-input-inner {
        gap: 0.35rem;
    }
    .aw-action-btn {
        padding: 0.35rem 0.45rem;
        font-size: 0.9rem;
    }

    /* Chat header buttons: larger tap targets */
    .aw-chat-header-btn {
        font-size: 0.8rem;
        padding: 0.4rem 0.6rem;
    }
}

/* Small phones */
@media (max-width: 480px) {
    .aw-sidebar {
        width: 280px; min-width: 280px;
        margin-left: -280px;
    }

    /* History dropdown: full-width */
    .aw-history-dropdown {
        width: calc(100vw - 1.5rem);
        right: -0.5rem;
    }

    /* Tighter chat padding */
    .aw-chat-messages { padding: 0.75rem; }
    .aw-input-area { padding: 0.4rem 0.5rem; }
    .aw-input-inner { gap: 0.25rem; }

    /* Slightly larger text for readability */
    .aw-chat-header-btn { font-size: 0.8rem; }
    .rn-message-bubble { font-size: 0.85rem; }

    /* Transformation bar: tighter */
    .rn-transform-bar .btn { font-size: 0.7rem; padding: 0.25rem 0.5rem; }

    /* Modal: reduce padding */
    body.aw-page .modal-body { padding: 0.75rem; }
    body.aw-page .modal-header { padding: 0.75rem; }
}