/* =============================================================================
   Glissy AI chat panel (global, included via footer partial)
   ============================================================================= */

    .ai-chat-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.3);
        z-index: 1040;
    }
    .ai-chat-overlay.open {
        display: block;
    }
    .ai-chat-resize-handle {
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 5px;
        cursor: col-resize;
        z-index: 10;
    }
    .ai-chat-resize-handle:hover,
    .ai-chat-resize-handle.dragging {
        background: var(--primary, var(--color-primary));
        opacity: 0.4;
    }
    .ai-chat-panel {
        position: fixed;
        top: 0;
        right: 0;
        width: 420px;
        min-width: 320px;
        max-width: 80vw;
        max-width: 100vw;
        height: 100vh;
        background: var(--bg-primary, var(--color-white));
        border-left: 1px solid var(--border-color, var(--color-gray-300));
        z-index: 1050;
        display: flex;
        flex-direction: column;
        transform: translateX(100%);
        transition: transform 0.25s ease;
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    }
    .ai-chat-panel.open {
        transform: translateX(0);
    }
    .ai-chat-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 14px 16px;
        border-bottom: 1px solid var(--border-color, var(--color-gray-300));
        background: var(--bg-secondary, var(--color-gray-50));
        flex-shrink: 0;
    }
    .ai-chat-header-title {
        display: flex;
        align-items: center;
        gap: 8px;
        font-weight: 600;
        font-size: 14px;
        color: var(--text-primary, var(--color-gray-900));
    }
    .ai-chat-header-title .bi-stars {
        color: var(--primary, var(--color-primary));
        font-size: 16px;
    }
    .ai-chat-tools-btn {
        background: none;
        border: 1px solid var(--border-color, var(--color-gray-300));
        border-radius: 4px;
        cursor: pointer;
        color: var(--text-muted, var(--color-gray-600));
        font-size: 13px;
        padding: 2px 6px;
        transition: color 0.15s, border-color 0.15s;
    }
    .ai-chat-tools-btn:hover {
        color: var(--primary, var(--color-primary));
        border-color: var(--primary, var(--color-primary));
    }
    .ai-chat-tools-panel {
        border-bottom: 1px solid var(--border-color, var(--color-gray-300));
        background: var(--bg-tertiary, var(--color-gray-100));
        padding: 10px 14px;
        font-size: 0.82em;
        max-height: 250px;
        overflow-y: auto;
        flex-shrink: 0;
    }
    .ai-chat-tools-header {
        font-weight: 600;
        color: var(--text-secondary);
        margin-bottom: 8px;
    }
    .ai-chat-tools-list {
        display: flex;
        flex-direction: column;
        gap: 6px;
    }
    .ai-chat-tool-item {
        background: var(--bg-primary, var(--color-white));
        border: 1px solid var(--border-color, var(--color-gray-300));
        border-radius: 5px;
        padding: 8px 10px;
    }
    .ai-chat-tool-name {
        font-weight: 600;
        color: var(--text-primary);
        font-family: monospace;
        font-size: 0.95em;
    }
    .ai-chat-tool-desc {
        color: var(--text-muted);
        margin-top: 2px;
        line-height: 1.4;
    }
    .ai-chat-header-actions {
        display: flex;
        align-items: center;
        gap: 4px;
    }
    .ai-chat-new-btn {
        background: none;
        border: 1px solid var(--border-color, var(--color-gray-300));
        border-radius: 4px;
        cursor: pointer;
        color: var(--text-muted, var(--color-gray-600));
        font-size: 13px;
        padding: 2px 6px;
        transition: color 0.15s, border-color 0.15s;
    }
    .ai-chat-new-btn:hover {
        color: var(--primary, var(--color-primary));
        border-color: var(--primary, var(--color-primary));
    }
    .ai-chat-close {
        background: none;
        border: none;
        cursor: pointer;
        color: var(--text-secondary, var(--color-gray-600));
        font-size: 16px;
        padding: 4px;
        line-height: 1;
    }
    .ai-chat-close:hover {
        color: var(--text-primary, var(--color-gray-900));
    }
    .ai-chat-history-panel {
        border-bottom: 1px solid var(--border-color, var(--color-gray-300));
        background: var(--bg-tertiary, var(--color-gray-100));
        padding: 10px 14px;
        font-size: 0.82em;
        max-height: 300px;
        overflow-y: auto;
        flex-shrink: 0;
    }
    .ai-chat-history-list {
        display: flex;
        flex-direction: column;
        gap: 4px;
    }
    .ai-chat-history-item {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 8px 10px;
        background: var(--bg-primary, var(--color-white));
        border: 1px solid var(--border-color, var(--color-gray-300));
        border-radius: 5px;
        cursor: pointer;
        transition: border-color 0.15s;
    }
    .ai-chat-history-item:hover {
        border-color: var(--primary, var(--color-primary));
    }
    .ai-chat-history-item.active {
        border-color: var(--primary, var(--color-primary));
        background: rgba(13, 110, 253, 0.05);
    }
    .ai-chat-history-item-content {
        flex: 1;
        min-width: 0;
    }
    .ai-chat-history-item-title {
        font-weight: 600;
        color: var(--text-primary);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    .ai-chat-history-item-meta {
        color: var(--text-muted);
        font-size: 0.9em;
        margin-top: 1px;
    }
    .ai-chat-history-delete {
        background: none;
        border: none;
        cursor: pointer;
        color: var(--text-muted, var(--color-gray-600));
        font-size: 12px;
        padding: 2px 4px;
        border-radius: 3px;
        opacity: 0;
        transition: opacity 0.15s, color 0.15s;
        flex-shrink: 0;
    }
    .ai-chat-history-item:hover .ai-chat-history-delete {
        opacity: 1;
    }
    .ai-chat-history-delete:hover {
        color: var(--danger, var(--color-danger));
    }
    .ai-chat-history-empty {
        text-align: center;
        color: var(--text-muted);
        padding: 12px;
    }
    .ai-chat-messages {
        flex: 1;
        overflow-y: auto;
        padding: 16px;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .ai-chat-welcome {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        text-align: center;
        padding: 40px 20px;
        color: var(--text-secondary, var(--color-gray-600));
    }
    .ai-chat-welcome-icon {
        font-size: 32px;
        color: var(--primary, var(--color-primary));
        margin-bottom: 12px;
    }
    .ai-chat-welcome-title {
        font-size: 16px;
        font-weight: 600;
        color: var(--text-primary, var(--color-gray-900));
        margin-bottom: 6px;
    }
    .ai-chat-welcome-text {
        font-size: 13px;
        line-height: 1.5;
    }
    .ai-chat-msg {
        max-width: 88%;
        padding: 10px 14px;
        border-radius: 12px;
        font-size: 13px;
        line-height: 1.55;
        word-wrap: break-word;
    }
    .ai-chat-msg p {
        margin: 0 0 6px 0;
    }
    .ai-chat-msg p:last-child {
        margin-bottom: 0;
    }
    .ai-chat-msg ol,
    .ai-chat-msg ul {
        margin: 6px 0;
        padding-left: 20px;
    }
    .ai-chat-msg li {
        margin-bottom: 4px;
    }
    .ai-chat-msg-user {
        align-self: flex-end;
        background: var(--primary, var(--color-primary));
        color: var(--color-white);
        border-bottom-right-radius: 4px;
    }
    .ai-chat-msg-assistant {
        align-self: flex-start;
        background: var(--bg-secondary, var(--color-border-light));
        color: var(--text-primary, var(--color-gray-900));
        border-bottom-left-radius: 4px;
    }
    .ai-chat-msg-assistant p {
        margin: 0 0 8px 0;
    }
    .ai-chat-msg-assistant p:last-child {
        margin-bottom: 0;
    }
    .ai-chat-msg-assistant ul,
    .ai-chat-msg-assistant ol {
        margin: 4px 0;
        padding-left: 20px;
    }
    .ai-chat-msg-assistant table {
        width: 100%;
        font-size: 12px;
        border-collapse: collapse;
        margin: 6px 0;
    }
    .ai-chat-msg-assistant table th,
    .ai-chat-msg-assistant table td {
        padding: 4px 8px;
        border: 1px solid var(--border-color, var(--color-gray-300));
        text-align: left;
    }
    .ai-chat-msg-assistant table th {
        background: var(--bg-tertiary, var(--color-gray-200));
        font-weight: 600;
    }
    .ai-chat-msg-assistant h4 {
        font-size: 13px;
        font-weight: 700;
        margin: 10px 0 4px;
        color: var(--text-primary, var(--color-gray-900));
    }
    .ai-chat-msg-assistant h4:first-child {
        margin-top: 0;
    }
    .ai-chat-msg-assistant h5 {
        font-size: 12px;
        font-weight: 600;
        margin: 8px 0 3px;
        color: var(--text-primary, var(--color-gray-900));
    }
    .ai-chat-msg-assistant hr {
        border: none;
        border-top: 1px solid var(--border-color, var(--color-gray-300));
        margin: 10px 0;
    }
    .ai-chat-msg-assistant a {
        color: var(--primary, var(--color-primary));
        text-decoration: none;
        word-break: break-all;
    }
    .ai-chat-msg-assistant a:hover {
        text-decoration: underline;
    }
    .ai-chat-msg-assistant pre {
        background: rgba(0,0,0,0.06);
        padding: 8px 10px;
        border-radius: 5px;
        overflow-x: auto;
        margin: 6px 0;
        font-size: 11px;
        line-height: 1.4;
    }
    .ai-chat-msg-assistant pre code {
        background: none;
        padding: 0;
        font-size: inherit;
    }
    .ai-chat-msg-assistant code {
        background: rgba(0,0,0,0.06);
        padding: 1px 4px;
        border-radius: 3px;
        font-size: 12px;
    }
    .ai-chat-msg-assistant strong {
        font-weight: 600;
    }
    .ai-chat-tool-indicator {
        align-self: flex-start;
        display: flex;
        align-items: center;
        gap: 6px;
        font-size: 11px;
        color: var(--text-secondary, var(--color-gray-600));
        padding: 4px 10px;
        background: var(--bg-tertiary, var(--color-gray-200));
        border-radius: 8px;
    }
    .ai-chat-tool-indicator .spinner {
        width: 12px;
        height: 12px;
        border: 2px solid var(--border-color, var(--color-gray-300));
        border-top-color: var(--primary, var(--color-primary));
        border-radius: 50%;
        animation: ai-spin 0.8s linear infinite;
    }
    @keyframes ai-spin {
        to { transform: rotate(360deg); }
    }
    .ai-chat-input-area {
        display: flex;
        align-items: flex-end;
        gap: 8px;
        padding: 12px 16px;
        border-top: 1px solid var(--border-color, var(--color-gray-300));
        background: var(--bg-primary, var(--color-white));
        flex-shrink: 0;
    }
    .ai-chat-textarea {
        flex: 1;
        resize: none;
        border: 1px solid var(--border-color, var(--color-gray-300));
        border-radius: 8px;
        padding: 8px 12px;
        font-size: 13px;
        font-family: inherit;
        line-height: 1.4;
        max-height: 120px;
        background: var(--bg-primary, var(--color-white));
        color: var(--text-primary, var(--color-gray-900));
        outline: none;
    }
    .ai-chat-textarea:focus {
        border-color: var(--primary, var(--color-primary));
        box-shadow: 0 0 0 2px rgba(13, 110, 253, 0.15);
    }
    .ai-chat-send {
        background: var(--primary, var(--color-primary));
        color: var(--color-white);
        border: none;
        border-radius: 8px;
        width: 36px;
        height: 36px;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        flex-shrink: 0;
        font-size: 14px;
    }
    .ai-chat-send:hover {
        background: var(--primary-hover, var(--color-primary));
    }
    .ai-chat-send:disabled {
        opacity: 0.5;
        cursor: not-allowed;
    }
    .ai-chat-toggle {
        background: none;
        border: none;
        cursor: pointer;
        color: var(--color-gray-700);
        font-size: 1rem;
        font-weight: 400;
        padding: 0.5rem 0.75rem;
        line-height: 1;
        display: flex;
        align-items: center;
        gap: 0.35rem;
        transition: color 0.15s ease-in-out;
    }
    .ai-chat-toggle:hover {
        color: var(--color-primary);
    }
    @media (max-width: 480px) {
        .ai-chat-panel {
            width: 100vw;
        }
    }