@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600&family=Playfair+Display:wght@700&display=swap');
        
        :root {
            /* DARK MODE (Default) */
            --bg-body: #121212; --bg-card: #1E1E1E; --bg-input: #2D2D2D;
            --bg-hover: #333333; --text-main: #E0E0E0; --text-muted: #A0A0A0;
            --accent-primary: #BB86FC; --accent-secondary: #03DAC6; --accent-gold: #FFD700;
            --danger: #CF6679; --border: #333; --shadow: 0 10px 30px rgba(0,0,0,0.5);
        }

        [data-theme="light"] {
            /* LIGHT MODE */
            --bg-body: #F4F6F8; --bg-card: #FFFFFF; --bg-input: #F0F0F0;
            --bg-hover: #E8E8E8; --text-main: #121212; --text-muted: #555555;
            --accent-primary: #6200EE; --accent-secondary: #018786; --accent-gold: #F9A825;
            --danger: #B00020; --border: #E0E0E0; --shadow: 0 5px 20px rgba(0,0,0,0.1);
        }

        /* --- Dialog Styles --- */
        dialog { margin: auto; background: var(--bg-card); color: var(--text-main); border: 1px solid var(--border); border-radius: 20px; padding: 30px; width: 90%; max-width: 700px; max-height: 85vh; overflow-y: auto; box-shadow: 0 25px 50px rgba(0,0,0,0.5); position: fixed; inset: 0; z-index: 100000; }
        dialog::backdrop { background: rgba(0, 0, 0, 0.8); backdrop-filter: blur(4px); }

        /* --- Base Layout --- */
        body { font-family: 'Montserrat', sans-serif; color: var(--text-main); background-color: var(--bg-body); margin: 0; padding: 0; min-height: 100vh; display: flex; flex-direction: column; overflow-x: hidden; transition: background 0.3s, color 0.3s; }
        .hidden { display: none !important; }
        
        /* --- Buttons & Inputs --- */
        button, .btn, .tab-btn, .project-card, .list-item, .dest-card, .timeline-item, .timeline-day-note, .switch, .booking-label, .auth-tab, .info-icon { cursor: pointer !important; }
        
        .btn { background: var(--bg-hover); border: 1px solid var(--border); padding: 8px 16px; color: var(--text-main); border-radius: 30px; font-weight: 600; transition: 0.2s; font-size: 0.9em; white-space: nowrap; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; }
        .btn:hover { background: var(--accent-primary); color: #fff; border-color: var(--accent-primary); }
        .btn-primary { background: var(--accent-primary); color: #fff; border: none; }
        [data-theme="light"] .btn-primary { color: #fff; } 
        
        .btn-sm { padding: 5px 10px; font-size: 0.8em; }
        .btn-danger { color: var(--danger); border-color: var(--danger); background: transparent; }
        
        input, select, textarea { background: var(--bg-input); border: 1px solid var(--border); color: var(--text-main); padding: 10px; border-radius: 8px; width: 100%; box-sizing: border-box; font-family: 'Montserrat'; margin-bottom: 10px; font-size: 14px; transition: 0.3s; }
        input:focus { outline: none; border-color: var(--accent-primary); background: var(--bg-card); }
        
        /* --- Disabled State for View Only --- */
        .read-only-mode input, .read-only-mode textarea, .read-only-mode select { pointer-events: none; opacity: 0.7; border-color: transparent; background: transparent; }
        .read-only-mode .btn-primary, .read-only-mode .btn-danger, .read-only-mode .switch, .read-only-mode .delete-trip-btn { display: none !important; }
        
        .view-section { padding: 20px; max-width: 1200px; margin: 0 auto; width: 100%; box-sizing: border-box; }
        
        /* --- Theme Toggle --- */
        .theme-toggle-btn { position: fixed; top: 20px; right: 20px; z-index: 1000; background: var(--bg-card); border: 1px solid var(--border); width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.2em; box-shadow: var(--shadow); }
        
        /* --- Tooltip Icons --- */
        .info-icon { display: inline-flex; align-items: center; justify-content: center; width: 20px; height: 20px; border-radius: 50%; background: var(--bg-hover); color: var(--accent-secondary); font-size: 12px; margin-left: 8px; border: 1px solid var(--border); position: relative; z-index: 10; }
        .info-icon:hover::after, .info-icon:active::after {
            content: attr(data-tip);
            position: absolute; bottom: 130%; left: 50%; transform: translateX(-50%);
            background: var(--bg-card); border: 1px solid var(--accent-secondary); color: var(--text-main);
            padding: 10px; border-radius: 8px; font-size: 12px; width: 220px; z-index: 1000;
            box-shadow: 0 5px 15px rgba(0,0,0,0.8); pointer-events: none; line-height: 1.4; text-align: left; font-weight: normal;
        }

        /* --- Auth resolving (covers page until Firebase auth state is known) --- */
        .auth-resolving {
            position: fixed;
            inset: 0;
            z-index: 99998;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-body);
            transition: opacity 0.2s ease;
        }
        .auth-resolving.hidden { display: none !important; pointer-events: none; }
        .auth-resolving-inner { text-align: center; }
        .auth-resolving-logo {
            font-family: 'Playfair Display', serif;
            font-size: 1.75rem;
            margin: 0 0 12px 0;
            color: var(--text-main);
        }
        .auth-resolving-logo span { color: var(--accent-primary); }
        .auth-resolving-text { margin: 0; font-size: 0.9em; color: var(--text-muted); }

        /* --- Landing Page --- */
        #landing-page { text-align: center; padding-top: 80px; }
        .hero-title { font-family: 'Playfair Display', serif; font-size: 3.5em; margin-bottom: 10px; }
        .hero-title span { color: var(--accent-primary); }
        .auth-container { max-width: 400px; margin: 0 auto; background: var(--bg-card); padding: 30px; border-radius: 20px; border: 1px solid var(--border); box-shadow: var(--shadow); }
        .auth-tabs { display: flex; gap: 10px; margin-bottom: 20px; justify-content: center; }
        .auth-tab { padding-bottom: 5px; border-bottom: 2px solid transparent; color: var(--text-muted); }
        .auth-tab.active { border-color: var(--accent-secondary); color: var(--text-main); }

        /* --- Dashboard --- */
        .dash-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 30px; border-bottom: 1px solid var(--border); padding-bottom: 20px; }

        /* Trip editor: compact trip block, sticky tab nav, AI below */
        .trip-editor-page.view-section { padding-left: max(16px, env(safe-area-inset-left)); padding-right: max(16px, env(safe-area-inset-right)); }
        /* Sticky is direct child of #editor-page so it stays pinned for the whole trip scroll (not clipped by trip-details). */
        .trip-editor-sticky {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--bg-body);
            padding-top: max(4px, env(safe-area-inset-top));
            margin-bottom: 8px;
        }
        .trip-editor-header-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 8px 10px;
            flex-wrap: nowrap;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border);
        }
        .trip-editor-header-bar #editor-title {
            flex: 1 1 auto;
            min-width: 0;
            font-size: clamp(0.95rem, 2.8vw, 1.3rem);
            margin: 0;
            line-height: 1.2;
            display: block;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .trip-editor-header-bar #editor-title:focus {
            outline: none;
            white-space: normal;
            overflow: visible;
            word-break: break-word;
        }
        .trip-editor-header-actions {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .trip-header-icon-btn {
            width: 40px;
            height: 40px;
            padding: 0;
            border-radius: 10px;
            border: 1px solid var(--border);
            background: var(--bg-card);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.15em;
            line-height: 1;
            cursor: pointer;
            box-shadow: var(--shadow);
            color: inherit;
        }
        .trip-header-icon-btn:hover {
            background: var(--bg-hover);
            border-color: var(--accent-secondary);
        }
        .trip-exit-btn {
            border-radius: 10px;
            margin-left: 2px;
        }
        .trip-details-collapsible {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 10px;
            margin-bottom: 10px;
            overflow: hidden;
        }
        .trip-details-summary {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px 12px;
            cursor: pointer;
            list-style: none;
            padding: 6px 10px;
            min-height: 0;
            line-height: 1.35;
            font-size: 0.8em;
            color: var(--text-muted);
        }
        .trip-details-summary::-webkit-details-marker { display: none; }
        .trip-details-summary-title {
            font-weight: 700;
            color: var(--accent-secondary);
            flex-shrink: 0;
        }
        .trip-details-summary-preview {
            flex: 1 1 160px;
            min-width: 0;
            font-size: 0.78em;
            color: var(--text-muted);
            opacity: 0.92;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .trip-details-collapsible[open] .trip-details-summary {
            border-bottom: 1px solid var(--border);
        }
        .trip-details-collapsible .criteria-bar {
            border: none;
            border-radius: 0;
        }
        .trip-criteria-compact.criteria-bar {
            padding: 8px 10px;
            margin-bottom: 0;
            gap: 8px 10px;
        }
        .trip-criteria-compact .criteria-label { font-size: 0.65rem; letter-spacing: 0.05em; }
        .trip-criteria-compact .criteria-input { font-size: 0.85rem; padding: 3px 0; }
        .trip-criteria-compact .criteria-group { min-width: min(100%, 118px); flex: 1 1 118px; }
        .trip-sticky-nav {
            position: static;
            z-index: auto;
            background: var(--bg-body);
            padding: 6px 0 10px;
            margin: 0 0 0;
            border-bottom: 1px solid var(--border);
        }
        .trip-ai-bar { margin-bottom: 16px; }
        .ai-search-icon { font-size: 1.1em; line-height: 1; flex-shrink: 0; }
        .project-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; }
        .project-card { background: var(--bg-card); padding: 0; border-radius: 15px; border: 1px solid var(--border); transition: transform 0.2s; position: relative; display: flex; flex-direction: column; gap: 10px; overflow: hidden; box-shadow: var(--shadow); }
        .project-card:hover { transform: translateY(-5px); border-color: var(--accent-secondary); }
        .card-meta { font-size: 0.85em; color: var(--text-muted); display: flex; flex-direction: column; gap: 5px; }

        /* --- Editor Header --- */
        #editor-title { border-bottom: 1px dashed transparent; cursor: text; transition: 0.2s; display: inline-block; font-size: 2em; margin: 0; color: var(--text-main); }
        #editor-title:hover { border-bottom-color: var(--accent-primary); }
        
        .switch-container { display: flex; align-items: center; gap: 10px; font-size: 0.9em; color: var(--text-muted); }
        .switch { position: relative; display: inline-block; width: 40px; height: 22px; }
        .switch input { opacity: 0; width: 0; height: 0; }
        .slider { position: absolute; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--bg-input); transition: .4s; border-radius: 34px; border: 1px solid var(--border); }
        .slider:before { position: absolute; content: ""; height: 16px; width: 16px; left: 2px; bottom: 2px; background-color: var(--text-muted); transition: .4s; border-radius: 50%; }
        input:checked + .slider { background-color: var(--accent-secondary); border-color: var(--accent-secondary); }
        input:checked + .slider:before { transform: translateX(18px); background-color: #fff; }

        .delete-trip-btn { position: absolute; top: 10px; right: 10px; background: rgba(200, 50, 50, 0.9); color: white; border: none; width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: 0.2s; z-index: 50; display: none; }
        .delete-trip-btn:hover { background: var(--danger); transform: scale(1.1); }
        .edit-mode-active .delete-trip-btn { display: flex; }

        /* --- Planner List --- */
        .list-card { background: var(--bg-card); padding: 20px; border-radius: 15px; border: 1px solid var(--border); margin-bottom: 20px; box-shadow: var(--shadow); }
        .list-card h3 { color: var(--accent-secondary); margin-top: 0; border-bottom: 1px solid var(--border); padding-bottom: 10px; font-family: 'Montserrat'; text-transform: uppercase; font-size: 0.9em; letter-spacing: 1px; }
        .list-item { background: var(--bg-input); padding: 15px; border-radius: 10px; margin-bottom: 10px; transition: background 0.2s; border: 1px solid transparent; }
        .list-item:hover { border-color: var(--border); }
        
        .item-inner { display: flex; flex-direction: column; gap: 10px; align-items: stretch; }
        .item-inner-row {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            min-width: 0;
        }
        .img-container { position: relative; flex-shrink: 0; }
        .item-thumb { width: 90px; height: 90px; border-radius: 8px; object-fit: cover; background: #222; border: 1px solid var(--border); display: block; }
        .img-refresh-btn { position: absolute; bottom: 5px; right: 5px; width: 24px; height: 24px; background: rgba(0,0,0,0.6); border: 1px solid rgba(255,255,255,0.3); border-radius: 50%; color: white; display: flex; align-items: center; justify-content: center; font-size: 12px; opacity: 0; transition: 0.2s; z-index: 5; }
        .img-container:hover .img-refresh-btn, .dest-card:hover .img-refresh-btn, .project-card:hover .img-refresh-btn { opacity: 1; }
        .img-refresh-btn:hover { background: var(--accent-secondary); color: black; transform: rotate(180deg); }
        .img-loading { opacity: 0.5; filter: blur(2px); }
        .item-content { flex: 1; min-width: 0; }
        .list-item--planner .item-content {
            text-align: left;
        }
        .item-meta--planner-preview {
            margin-top: 4px;
        }
        .planner-est-line {
            font-size: 0.78em;
            color: var(--accent-secondary);
            font-weight: 600;
        }

        .planner-ai-unified {
            border: 1px solid var(--border);
            border-radius: 16px;
            background: var(--bg-card);
            padding: 12px;
            box-shadow: var(--shadow);
        }
        .planner-ai-collapsible {
            margin: 0;
            padding: 0;
            border: none;
        }
        .planner-ai-collapsible > summary {
            list-style: none;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px 10px;
            cursor: pointer;
            padding: 2px 0 8px 0;
            user-select: none;
            color: var(--text-main);
        }
        .planner-ai-collapsible > summary::-webkit-details-marker {
            display: none;
        }
        .planner-ai-chevron {
            margin-left: auto;
            font-size: 0.55rem;
            line-height: 1;
            opacity: 0.75;
            transition: transform 0.2s ease;
        }
        .planner-ai-collapsible[open] .planner-ai-chevron {
            transform: rotate(-180deg);
        }
        .planner-ai-collapsible-body {
            padding: 0 0 4px 0;
        }
        .planner-ai-unified .planner-chat-composer {
            margin-top: 10px;
        }
        .planner-chat-log {
            max-height: min(46vh, 420px);
            overflow-y: auto;
            padding: 10px;
            border-radius: 12px;
            background: rgba(0, 0, 0, 0.16);
            border: 1px solid var(--border);
            margin-bottom: 8px;
            font-size: 0.9em;
            line-height: 1.45;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .planner-chat-msg {
            margin: 0;
            padding: 9px 11px;
            border-radius: 14px;
            white-space: pre-wrap;
            max-width: min(86%, 680px);
            width: fit-content;
        }
        .planner-chat-msg--user {
            margin-left: auto;
            background: rgba(187, 134, 252, 0.2);
            border: 1px solid rgba(187, 134, 252, 0.45);
        }
        .planner-chat-msg--assistant {
            margin-right: auto;
            background: rgba(100, 180, 120, 0.12);
            border: 1px solid rgba(100, 180, 120, 0.28);
        }
        .planner-chat-patch-note {
            font-size: 0.82em;
            color: var(--text-muted);
            margin-bottom: 6px;
            padding: 4px 0;
        }
        .planner-chat-patch-note--done {
            color: var(--accent-secondary);
        }
        .planner-chat-patch-note--warn {
            color: #e8a87c;
        }
        .planner-chat-patch-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 8px;
        }
        .planner-ai-bar .planner-chat-compact { margin-bottom: 0; }
        .planner-chat-thread-details {
            margin-top: 10px;
            border: 1px solid var(--border);
            border-radius: 12px;
            background: var(--bg-card);
            overflow: hidden;
        }
        .planner-chat-thread-summary {
            cursor: pointer;
            padding: 10px 14px;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            font-weight: 600;
            color: var(--text-main);
        }
        .planner-chat-thread-summary::-webkit-details-marker { display: none; }
        .planner-chat-thread-badge {
            font-size: 0.78em;
            font-weight: 500;
            color: var(--text-muted);
            padding: 2px 8px;
            border-radius: 999px;
            border: 1px solid var(--border);
        }
        .planner-chat-thread-inner {
            padding: 0 12px 12px;
        }
        .planner-chat-thread-hint {
            font-size: 0.82em;
            color: var(--text-muted);
            margin: 0 0 8px 0;
        }
        .planner-chat-composer {
            border-radius: 999px;
            padding: 6px 10px;
            background: rgba(0, 0, 0, 0.18);
            border: 1px solid var(--border);
        }
        .planner-chat-composer .planner-chat-input-field {
            font-size: 0.95em;
        }
        .planner-chat-composer .info-icon,
        .planner-chat-composer .btn {
            flex-shrink: 0;
        }
        .wizard-step-panel { display: none; }
        .wizard-step-panel.wizard-step-active { display: block; }
        .wizard-progress {
            display: flex;
            gap: 8px;
            margin-bottom: 16px;
            align-items: center;
            flex-wrap: wrap;
        }
        .wizard-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--border);
        }
        .wizard-dot.wizard-dot-current { background: var(--accent-secondary); box-shadow: 0 0 0 2px rgba(100, 200, 150, 0.35); }
        .wizard-dot.wizard-dot-done { background: var(--accent-primary); }
        .wizard-nav-row {
            display: flex;
            justify-content: space-between;
            gap: 10px;
            margin-top: 20px;
            flex-wrap: wrap;
        }
        .wizard-review-box {
            font-size: 0.9em;
            color: var(--text-muted);
            background: rgba(0, 0, 0, 0.15);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 12px;
            line-height: 1.5;
            white-space: pre-wrap;
        }
        .item-title { font-weight: 600; display: block; margin-bottom: 4px; font-size: 1em; border-bottom: 1px dashed transparent; cursor: text; color: var(--text-main); }
        .item-title:hover { border-bottom-color: var(--text-muted); }
        .item-desc { display: block; font-size: 0.9em; color: var(--text-muted); margin-bottom: 8px; border-bottom: 1px dashed transparent; cursor: text; }
        .item-desc:hover { border-bottom-color: var(--text-muted); }
        .cost-wrapper { font-size: 0.8em; color: var(--text-muted); background: rgba(125,125,125,0.1); padding: 4px 8px; border-radius: 4px; display: inline-flex; gap: 10px; }
        .cost-val { color: var(--accent-secondary); font-weight: bold; min-width: 30px; display: inline-block; border-bottom: 1px dashed transparent; cursor: text;}
        .cost-val:hover { border-bottom-color: var(--text-muted); }
        .item-controls { display: flex; flex-direction: column; gap: 8px; align-items: flex-end; min-width: 0; max-width: 100%;}
        @media (min-width: 769px) {
            #tab-planner .list-item--planner .item-controls {
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: flex-end;
                align-self: flex-end;
            }
        }
        .detail-type-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 14px;
            align-items: flex-end;
            margin: 0 0 10px 0;
        }
        .detail-type-field {
            flex: 1 1 140px;
            min-width: 0;
        }
        .detail-type-select {
            width: 100%;
            margin-top: 4px;
            padding: 8px 10px;
            border-radius: 8px;
            background: var(--bg-input);
            color: var(--text-main);
            border: 1px solid var(--border);
            font-size: 0.9em;
        }
        .item-desc--preview {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.35;
            max-height: 2.8em;
            font-size: 0.82em;
        }
        .item-desc--preview:focus {
            -webkit-line-clamp: unset;
            max-height: none;
            display: block;
            overflow: visible;
        }
        .cost-wrapper--planner {
            font-size: 0.74em;
            padding: 3px 6px;
            gap: 6px;
        }
        .cost-wrapper--planner .cost-row {
            line-height: 1.25;
        }
        .booking-label { display: flex; align-items: center; gap: 6px; font-size: 0.85em; color: var(--text-main); background: rgba(125,125,125,0.1); padding: 5px 10px; border-radius: 20px; }
        .booking-label input { width: auto; margin: 0; }

        /* --- AI & Criteria --- */
        .criteria-bar { background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; padding: 15px; margin-bottom: 20px; display: flex; gap: 20px; align-items: flex-end; flex-wrap: wrap; }
        .criteria-group { display: flex; flex-direction: column; gap: 5px; flex: 1; min-width: 150px; }
        .criteria-label { font-size: 0.8em; color: var(--text-muted); font-weight: bold; text-transform: uppercase; letter-spacing: 1px; }
        .criteria-input { background: transparent; border: none; border-bottom: 1px solid transparent; padding: 5px 0; font-size: 1em; color: var(--text-main); width: 100%; transition: 0.2s; }
        .criteria-bar.editing .criteria-input { border-bottom-color: var(--accent-primary); background: var(--bg-input); padding: 5px; }
        .ai-search-container { display: flex; gap: 8px; background: var(--bg-card); padding: 8px 12px; border-radius: 12px; border: 1px solid var(--border); margin: 0; align-items: center; flex-wrap: nowrap; width: 100%; max-width: 100%; box-sizing: border-box; }
        .ai-search-container input { border: none; background: transparent; margin: 0; font-size: 0.95em; flex: 1 1 140px; min-width: 0; }
        .ai-progress-wrapper { margin: 0 0 8px 0; display: none; }
        .ai-status-text { font-size: 0.85em; color: var(--accent-secondary); margin-bottom: 5px; font-style: italic; }
        .ai-progress-track { width: 100%; background: var(--bg-input); height: 8px; border-radius: 4px; overflow: hidden; }
        .ai-progress-fill { height: 100%; background: var(--accent-secondary); width: 0%; transition: width 0.3s ease-out; }

        /* --- Tabs: one row on mobile (flex + compact icon+label) --- */
        .nav-tabs {
            display: flex;
            flex-wrap: nowrap;
            gap: 4px;
            margin-bottom: 0;
            width: 100%;
            max-width: 100%;
            box-sizing: border-box;
        }
        .tab-btn {
            background: var(--bg-card);
            border: 1px solid var(--border);
            color: var(--text-muted);
            padding: 5px 3px;
            border-radius: 8px;
            font-size: 0.65rem;
            font-weight: 600;
            text-align: center;
            line-height: 1.15;
            min-height: 0;
            min-width: 0;
            flex: 1 1 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            white-space: nowrap;
        }
        .tab-btn-icon {
            font-size: 1.05rem;
            line-height: 1;
        }
        .tab-btn-label {
            font-size: 0.62rem;
            font-weight: 600;
            letter-spacing: -0.02em;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 100%;
        }
        .tab-btn-label-long { display: none; }
        .tab-btn-label-short { display: inline; }
        @media (min-width: 720px) {
            .nav-tabs { gap: 8px; }
            .tab-btn {
                padding: 8px 10px;
                font-size: 0.78rem;
                flex-direction: row;
                gap: 6px;
                border-radius: 10px;
            }
            .tab-btn-icon { font-size: 1.1rem; }
            .tab-btn-label { font-size: 0.78rem; letter-spacing: 0; }
            .tab-btn-label-long { display: inline; }
            .tab-btn-label-short { display: none; }
        }
        .tab-btn.active { background: var(--accent-secondary); color: #fff; border-color: var(--accent-secondary); }
        .tab-view { display: none; }
        .tab-view.active { display: block; }
        /* Must beat #tab-planner display:flex when tab is inactive (otherwise assistant shows on every tab). */
        #tab-planner.tab-view { display: none; }
        #tab-planner.tab-view.active {
            display: flex;
            flex-direction: column;
            gap: 10px;
            min-height: 0;
        }
        #tab-planner.tab-view.active .planner-chat-log {
            max-height: min(58vh, 520px);
        }

        /* --- Destinations --- */
        .dest-card { display: flex; gap: 20px; background: var(--bg-card); border-radius: 15px; border: 1px solid var(--border); overflow: hidden; margin-bottom: 25px; transition: transform 0.2s; position: relative; box-shadow: var(--shadow); }
        .dest-card:hover { transform: translateY(-3px); border-color: var(--accent-secondary); }
        .dest-img { width: 250px; min-height: 280px; object-fit: cover; background: #222; }
        .dest-info { padding: 25px; flex: 1; }
        .dest-title { font-family: 'Playfair Display'; font-size: 2em; margin: 0; color: var(--text-main); }
        .dest-refresh-btn { position: absolute; top: 15px; right: 15px; background: rgba(0,0,0,0.5); border: 1px solid var(--border); color: white; border-radius: 50%; width: 35px; height: 35px; display: flex; align-items: center; justify-content: center; font-size: 1.2em; z-index: 10; transition: 0.2s; cursor: pointer; }
        .dest-refresh-btn:hover { background: var(--accent-secondary); color: black; }
        .dest-recs { margin-top: 15px; }
        .dest-rec-item { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; border-bottom: 1px dashed var(--border); font-size: 0.9em; color: var(--text-muted); }
        .dest-rec-item:last-child { border: none; }
        .rec-add-btn { background: rgba(3, 218, 198, 0.1); color: var(--accent-secondary); border: 1px solid var(--accent-secondary); border-radius: 15px; padding: 2px 10px; font-size: 0.8em; }
        .rec-add-btn:hover { background: var(--accent-secondary); color: black; }
        .weather-pill { background: rgba(3, 218, 198, 0.15); color: var(--accent-secondary); padding: 4px 10px; border-radius: 15px; font-size: 0.8em; font-weight: bold; display: inline-flex; align-items: center; gap: 5px; margin-top: 5px; }

        /* --- Modals (top bar + close) --- */
        .modal-topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: -4px -4px 14px -4px; padding: 4px 2px 12px 2px; border-bottom: 1px solid var(--border); }
        .modal-topbar-title { font-size: 0.82em; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); }
        .modal-close-x {
            flex-shrink: 0; width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--border);
            background: var(--bg-input); color: var(--text-main); font-size: 1.35rem; line-height: 1; cursor: pointer;
            display: flex; align-items: center; justify-content: center; padding: 0;
        }
        .modal-close-x:hover { background: rgba(220, 53, 69, 0.12); border-color: #dc3545; color: #dc3545; }

        /* --- Detail Modal --- */
        .detail-cost-pair-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
        @media (max-width: 560px) { .detail-cost-pair-grid { grid-template-columns: 1fr; } }

        .detail-header { display: flex; gap: 20px; align-items: flex-start; border-bottom: 1px solid var(--border); padding-bottom: 20px; margin-bottom: 20px; position:relative; }
        .detail-img { width: 120px; height: 120px; border-radius: 10px; object-fit: cover; background: #222; }
        .detail-info { flex: 1; }
        .detail-meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-bottom: 20px; background: var(--bg-input); padding: 15px; border-radius: 10px; }
        .detail-label { font-size: 0.8em; color: var(--text-muted); display: block; margin-bottom: 3px; }
        .detail-basis-toggle { display: inline-flex; border-radius: 8px; overflow: hidden; border: 1px solid var(--border); background: var(--bg-card); }
        .detail-basis-toggle button {
            margin: 0; border: none; border-radius: 0; background: transparent; color: var(--text-muted);
            padding: 6px 12px; font-size: 0.8em; font-weight: 600; cursor: pointer; transition: background 0.15s, color 0.15s;
        }
        .detail-basis-toggle button + button { border-left: 1px solid var(--border); }
        .detail-basis-toggle button:hover:not(:disabled) { background: var(--bg-hover); color: var(--text-main); }
        .detail-basis-toggle button.active { background: var(--accent-primary); color: #fff; }
        .detail-basis-toggle button:disabled { opacity: 0.55; cursor: not-allowed; }
        .detail-url-block { margin-top: 16px; }
        .detail-url-block .detail-field-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; margin-bottom: 6px; }
        .detail-url-block .detail-field-head h3 { margin: 0; font-size: 1rem; }
        .detail-autofill-btn { flex-shrink: 0; }
        .ai-insight-box { background: rgba(187, 134, 252, 0.1); border-left: 3px solid var(--accent-primary); padding: 15px; margin-bottom: 20px; border-radius: 5px; font-size: 0.95em; color: var(--text-main); line-height: 1.6; }
        .list-link { text-decoration: none; color: var(--accent-secondary); font-size: 0.85em; font-weight: 600; display: inline-flex; align-items: center; gap: 5px; margin-top: 5px; }
        .list-link:hover { text-decoration: underline; }

        /* --- Itinerary & Financials --- */
        .fin-dashboard { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 30px; }
        .fin-dashboard .fin-card-span { grid-column: 1 / -1; }
        .fin-chart-title { margin: 0 0 10px 0; font-size: 0.95em; color: var(--text-muted); font-weight: 600; }
        /* Fixed height stops Chart.js (maintainAspectRatio:false) from growing the parent forever */
        .fin-chart-wrap { position: relative; height: 280px; width: 100%; max-height: 40vh; }
        .fin-chart-card { min-height: 0; }
        .fin-pricing-hint { margin: 12px 0 0 0; font-size: 0.88em; color: var(--text-muted); line-height: 1.4; }
        .cost-wrapper.cost-wrapper-stacked { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; }
        .cost-row { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px; font-size: 0.8em; }
        .cost-unit-hint { font-size: 0.75em; opacity: 0.85; color: var(--text-muted); }
        .cost-trip-hint { font-size: 0.72em; color: var(--text-muted); }
        .fin-card { background: var(--bg-card); padding: 20px; border-radius: 15px; border: 1px solid var(--border); box-shadow: var(--shadow); }
        .fin-summary-header { display: flex; justify-content: space-between; margin-bottom: 15px; }
        .fin-big-stat { font-family: 'Playfair Display'; font-size: 1.8em; color: var(--accent-secondary); }
        .fin-sub-stat { font-size: 0.9em; color: var(--text-muted); }
        .fin-table-container { overflow-x: auto; margin-top: 10px; }
        .fin-ledger-section { margin-top: 20px; }
        .fin-currency-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-bottom: 6px; }
        .fin-currency-toolbar-label { font-size: 0.85em; color: var(--text-muted); }
        .fin-budget-currency-select { min-width: 96px; }
        .fin-fx-note { font-size: 0.78em; color: var(--text-muted); margin: 0 0 14px 0; line-height: 1.35; }
        .currency-select, .currency-select-mini {
            background: var(--bg-input);
            color: var(--text-main);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 8px 6px;
            font-size: 0.85em;
            max-width: 100%;
        }
        .currency-select-mini { padding: 4px 4px; max-width: 92px; font-size: 0.78em; }
        .currency-select-modal { max-width: 110px; padding: 8px; }
        .cost-ccy-picker { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }
        .cost-ccy-label { font-size: 0.72em; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
        
        .budget-table { width: 100%; border-collapse: collapse; font-size: 0.9em; }
        .budget-table th { text-align: left; padding: 10px; border-bottom: 2px solid var(--border); color: var(--text-main); text-transform: uppercase; font-size: 0.8em; }
        .budget-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); color: var(--text-muted); }
        .budget-cat-row td { background: var(--bg-input); font-weight: bold; color: var(--accent-primary); padding-top: 15px; }
        .budget-subtotal-row td { border-top: 1px dashed var(--text-muted); font-weight: bold; text-align: right; color: var(--text-main); }
        .budget-grand-total td { font-size: 1.2em; color: var(--accent-gold); border-top: 2px solid var(--accent-gold); padding: 15px 10px; font-weight: bold; text-align: right; }

        /* --- Map legend (itinerary) --- */
        .map-legend {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 18px;
            align-items: center;
            margin-bottom: 10px;
            font-size: 0.78em;
            color: var(--text-muted);
        }
        .map-legend-item { display: inline-flex; align-items: center; gap: 6px; }
        .map-legend-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            border: 2px solid rgba(255,255,255,0.85);
            box-shadow: 0 0 0 1px rgba(0,0,0,0.15);
            flex-shrink: 0;
        }
        .map-legend-hint {
            font-size: 0.75em;
            color: var(--text-muted);
            margin: 0 0 20px 0;
            line-height: 1.35;
            opacity: 0.9;
        }

        .itinerary-toolbar {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px 12px;
            margin-bottom: 10px;
            width: 100%;
            box-sizing: border-box;
        }
        #tab-itinerary .itinerary-toolbar--map-actions {
            margin-top: 0;
            margin-bottom: 12px;
            padding-top: 0;
            border-top: none;
            justify-content: flex-end;
        }
        #tab-itinerary .itinerary-toolbar--map-actions .itinerary-toolbar-cluster--end {
            margin-left: 0;
        }
        #tab-itinerary .itinerary-toolbar--above-timeline {
            margin-top: 0;
            margin-bottom: 14px;
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }
        .itinerary-toolbar-cluster {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px 10px;
        }
        .itinerary-toolbar-cluster--leading {
            flex: 1 1 0;
            min-width: 0;
            justify-content: flex-start;
        }
        .itinerary-toolbar-cluster--end {
            flex: 0 1 auto;
            justify-content: flex-end;
            margin-left: auto;
        }
        .itinerary-days-expand-toggle {
            min-width: 4.75rem;
            padding-left: 10px;
            padding-right: 10px;
        }
        .itinerary-ai-tips-toggle-label {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            margin: 0;
            padding: 0;
            font-size: 0.72em;
            font-weight: 500;
            color: var(--text-muted);
            cursor: pointer;
            user-select: none;
            flex-shrink: 1;
            min-width: 0;
            line-height: 1.25;
        }
        .itinerary-ai-tips-toggle-label input[type="checkbox"] {
            margin: 0;
            width: 14px;
            height: 14px;
            flex-shrink: 0;
            accent-color: var(--accent-secondary);
            cursor: pointer;
        }
        .itinerary-ai-tips-toggle-text {
            padding-left: 0;
            margin: 0;
        }

        /* --- ITINERARY TIMELINE --- */
        .timeline-day { margin-bottom: 40px; }
        .timeline-day--collapsed .timeline-day-body { display: none; }
        .day-header-container { display: flex; align-items: flex-start; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
        .day-header-text-block { flex: 1; min-width: 0; }
        .day-badge-row { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px; }
        .timeline-day-toggle { flex-shrink: 0; margin-top: 2px; }
        .day-primary-location:empty { display: none; }
        .timeline-day:not(.timeline-day--collapsed) .day-primary-location { display: none; }
        .timeline-day--collapsed .day-primary-location:not(:empty) {
            display: block;
            margin-top: 6px;
            font-size: 0.85em;
            color: var(--text-muted);
            line-height: 1.35;
        }
        .day-itinerary-actions { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; flex-shrink: 0; }
        .day-ai-tip-wrap { margin-bottom: 8px; }
        .day-ai-tip-card { background: var(--bg-input); border: 1px solid var(--border); border-radius: 8px; padding: 0; font-size: 0.82em; }
        .day-ai-tip-details { margin: 0; }
        .day-ai-tip-details > summary.day-ai-tip-summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            cursor: pointer;
            list-style: none;
            padding: 4px 8px;
            min-height: 0;
            line-height: 1.25;
            color: var(--text-muted);
            font-size: 0.78em;
            font-weight: 500;
        }
        .day-ai-tip-details > summary.day-ai-tip-summary::-webkit-details-marker { display: none; }
        .day-ai-tip-summary-text { flex: 1; min-width: 0; color: var(--accent-secondary); }
        .day-ai-tip-refresh {
            flex-shrink: 0;
            padding: 2px 8px !important;
            font-size: 0.85em !important;
            line-height: 1.2 !important;
            margin: 0 !important;
        }
        .day-ai-tip-body { padding: 0 8px 6px 8px; border-top: 1px solid var(--border); margin-top: 2px; padding-top: 6px; }
        .day-ai-tip-details:not([open]) .day-ai-tip-body { display: none; }
        .day-ai-tip-details:not([open]) > summary.day-ai-tip-summary { border-top: none; margin-top: 0; }
        .day-ai-tip-details:not([open]) .day-ai-tip-card { border-radius: 8px; }
        .day-ai-tip-text { margin: 0; line-height: 1.45; color: var(--text-main); white-space: pre-wrap; font-size: 0.88em; }
        .day-ai-tip-status { display: block; font-size: 0.75em; color: var(--text-muted); margin-top: 4px; }
        .day-badge { background: var(--accent-gold); color: #121212; padding: 5px 12px; border-radius: 20px; font-weight: 700; font-size: 0.9em; text-transform: uppercase; }
        .day-date { font-family: 'Playfair Display', serif; font-size: 1.2em; color: var(--text-main); }
        .location-subheader { margin: 15px 0 10px 0; padding-left: 10px; color: var(--accent-secondary); font-weight: 600; font-size: 0.9em; display: flex; align-items: center; gap: 8px; }
        .timeline-item {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: flex-start;
            margin-bottom: 15px;
            position: relative;
            background: var(--bg-card);
            padding: 12px 12px 10px;
            border-radius: 10px;
            border: 1px solid var(--border);
            margin-left: 10px;
            transition: border-color 0.2s, box-shadow 0.2s;
            box-shadow: var(--shadow);
        }
        .timeline-item-actions.timeline-item-actions--footer {
            position: static;
            flex: 1 1 100%;
            width: 100%;
            display: flex;
            flex-direction: row;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            margin-top: 8px;
            padding-top: 8px;
            border-top: 1px solid var(--border);
            z-index: 2;
        }
        .timeline-item-status-block {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 4px 6px;
            min-width: 0;
            justify-content: flex-start;
        }
        .timeline-item-status-block .timeline-status-pill {
            margin-left: 0;
        }
        .timeline-item-actions-btns {
            display: flex;
            flex-direction: row;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .timeline-leg-row {
            display: flex;
            flex-wrap: nowrap;
            align-items: flex-start;
            justify-content: space-between;
            gap: 8px;
            margin: 2px 0 6px 10px;
            padding: 2px 0 2px 4px;
            max-width: 100%;
        }
        .timeline-leg-text-col {
            flex: 1 1 0;
            min-width: 0;
        }
        .timeline-leg-text-btn {
            width: 100%;
            margin: 0;
            padding: 0;
            border: none;
            background: transparent;
            text-align: left;
            cursor: default;
            font-size: 0.68em;
            line-height: 1.35;
            color: var(--text-muted);
        }
        .timeline-leg-row--expandable .timeline-leg-text-btn {
            cursor: pointer;
        }
        .timeline-leg-row--expandable .timeline-leg-text-btn:hover {
            color: var(--accent-secondary);
        }
        .timeline-leg-text-btn:disabled {
            cursor: default;
            opacity: 0.75;
        }
        .timeline-leg-line {
            display: block;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .timeline-leg-detail {
            display: none;
            margin-top: 5px;
            padding-top: 5px;
            border-top: 1px solid var(--border);
            white-space: normal;
            color: var(--text-muted);
            font-size: 0.95em;
            line-height: 1.45;
        }
        .timeline-leg-row--expandable.timeline-leg-row--expanded .timeline-leg-detail {
            display: block;
        }
        .timeline-leg-gear {
            flex-shrink: 0;
            margin: 0;
            padding: 0 4px;
            border: none;
            border-radius: 6px;
            background: transparent;
            color: var(--text-muted);
            font-size: 0.75em;
            line-height: 1.2;
            cursor: pointer;
            align-self: flex-start;
        }
        .timeline-leg-gear:hover:not(:disabled) {
            color: var(--accent-secondary);
            background: rgba(187, 134, 252, 0.08);
        }
        .timeline-leg-gear:disabled {
            opacity: 0.45;
            cursor: default;
        }
        .timeline-leg-refresh {
            flex-shrink: 0;
            margin: 0;
            padding: 0 4px;
            border: none;
            border-radius: 6px;
            background: transparent;
            color: var(--text-muted);
            font-size: 0.75em;
            line-height: 1.2;
            cursor: pointer;
            align-self: flex-start;
        }
        .timeline-leg-refresh:hover:not(:disabled) {
            color: var(--accent-secondary);
            background: rgba(187, 134, 252, 0.08);
        }
        .timeline-leg-refresh:disabled {
            opacity: 0.45;
            cursor: default;
        }
        .timeline-leg-dir {
            flex-shrink: 0;
            font-size: 0.65em;
            font-weight: 600;
            color: var(--accent-secondary);
            text-decoration: none;
            padding: 1px 0;
            white-space: nowrap;
        }
        .timeline-leg-dir:hover {
            text-decoration: underline;
        }
        .timeline-leg-dir--na {
            display: none;
        }
        .timeline-item--collapsed .timeline-item-details { display: none; }
        .timeline-item-summary h4 { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 6px; }
        .timeline-item-basic-line {
            font-size: 0.82em;
            color: var(--text-muted);
            line-height: 1.35;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .timeline-item-compact-toggle,
        .timeline-note-compact-toggle {
            flex-shrink: 0;
            align-self: flex-start;
            margin-top: 2px;
            width: 28px;
            min-height: 28px;
            padding: 0;
            border: none;
            border-radius: 6px;
            background: transparent;
            color: var(--text-muted);
            font-size: 0.85em;
            line-height: 1;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            z-index: 1;
        }
        .timeline-item-compact-toggle:hover,
        .timeline-note-compact-toggle:hover {
            background: var(--bg-input);
            color: var(--text-main);
        }
        .timeline-item-compact-toggle:focus-visible,
        .timeline-note-compact-toggle:focus-visible {
            outline: 2px solid var(--accent-secondary);
            outline-offset: 2px;
        }
        .timeline-day-note { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-start; margin-bottom: 12px; position: relative; background: rgba(187, 134, 252, 0.06); padding: 12px 38px 12px 10px; border-radius: 10px; border: 1px dashed rgba(187, 134, 252, 0.45); margin-left: 10px; transition: 0.2s; }
        .timeline-day-note .timeline-note-actions { justify-content: flex-end; }
        .timeline-day-note .timeline-note-actions .timeline-item-actions-btns { margin-left: auto; }
        .timeline-day-note--collapsed .timeline-note-details { display: none; }
        .timeline-note-summary { min-width: 0; flex: 1; }
        .timeline-note-one-line {
            font-size: 0.82em;
            color: var(--text-muted);
            line-height: 1.35;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        @media (hover: hover) {
            .timeline-day-note:hover { border-color: var(--accent-primary); background: rgba(187, 134, 252, 0.1); }
        }
        .timeline-note-marker { border-color: var(--accent-primary); color: var(--accent-primary); font-size: 0.75em; }
        .timeline-note-title { margin: 0 0 4px 0; font-size: 0.95em; color: var(--accent-primary); }
        .timeline-note-body-preview { font-size: 0.85em; color: var(--text-muted); line-height: 1.35; }
        .timeline-note-empty { opacity: 0.75; font-style: italic; }
        .timeline-note-att-meta { margin-top: 4px !important; }
        .timeline-note-preview { font-size: 0.78em; color: var(--text-muted); margin-top: 6px; line-height: 1.3; max-height: 2.6em; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
        .timeline-drag-handle {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            min-height: 36px;
            margin-top: 2px;
            border: none;
            border-radius: 6px;
            background: transparent;
            color: var(--text-muted);
            cursor: grab !important;
            font-size: 0.95em;
            line-height: 1;
            padding: 0;
            z-index: 1;
            user-select: none;
            -webkit-user-select: none;
            box-sizing: border-box;
        }
        .timeline-drag-handle:hover { background: var(--bg-input); color: var(--text-main); }
        .timeline-drag-handle:active { cursor: grabbing; }
        .timeline-drag-handle:focus-visible { outline: 2px solid var(--accent-secondary); outline-offset: 2px; }
        .timeline-item-dragging { opacity: 0.88; }
        .timeline-sortable-ghost {
            opacity: 0.45;
            background: var(--bg-input) !important;
            border: 2px dashed var(--accent-secondary) !important;
        }
        .timeline-sortable-chosen { box-shadow: 0 0 0 2px rgba(3, 218, 198, 0.45); }
        .timeline-sortable-drag {
            opacity: 0.95;
            cursor: grabbing !important;
        }
        .timeline-aux-row { pointer-events: none; }
        .timeline-item-drag-target { box-shadow: 0 0 0 1px var(--accent-secondary); }
        .timeline-item.timeline-drag-insert-before,
        .timeline-day-note.timeline-drag-insert-before {
            margin-top: 40px !important;
            transition: margin-top 0.12s ease-out;
            position: relative;
        }
        .timeline-item.timeline-drag-insert-before::before,
        .timeline-day-note.timeline-drag-insert-before::before {
            content: "";
            position: absolute;
            left: 4px;
            right: 8px;
            top: -22px;
            height: 4px;
            border-radius: 2px;
            background: var(--accent-secondary);
            box-shadow: 0 0 0 1px rgba(3, 218, 198, 0.35);
            pointer-events: none;
        }
        .timeline-item.timeline-drag-insert-after,
        .timeline-day-note.timeline-drag-insert-after {
            margin-bottom: 40px !important;
            transition: margin-bottom 0.12s ease-out;
            position: relative;
        }
        .timeline-item.timeline-drag-insert-after::after,
        .timeline-day-note.timeline-drag-insert-after::after {
            content: "";
            position: absolute;
            left: 4px;
            right: 8px;
            bottom: -22px;
            height: 4px;
            border-radius: 2px;
            background: var(--accent-secondary);
            box-shadow: 0 0 0 1px rgba(3, 218, 198, 0.35);
            pointer-events: none;
        }
        .timeline-day-drag-over { background: rgba(3, 218, 198, 0.07); border-radius: 10px; outline: 1px dashed rgba(3, 218, 198, 0.35); }
        .timeline-day-items { min-height: 8px; }
        .timeline-stay-placeholder {
            background: rgba(3, 218, 198, 0.06);
            border: 1px dashed rgba(3, 218, 198, 0.35);
            cursor: pointer;
        }
        .timeline-stay-placeholder:hover { border-color: var(--accent-secondary); }
        .timeline-travel-placeholder {
            background: rgba(33, 150, 243, 0.06);
            border: 1px dashed rgba(33, 150, 243, 0.4);
            cursor: pointer;
        }
        .timeline-travel-placeholder:hover { border-color: #2196f3; }
        .timeline-placeholder-title { margin: 0 0 4px 0; font-size: 0.95em; color: var(--text-main); font-weight: 600; }
        .timeline-placeholder-marker { opacity: 0.55 !important; border-style: dashed !important; font-weight: 400 !important; }
        .timeline-move-btn {
            position: static;
            padding: 4px 10px;
            margin: 0;
            border: 1px solid var(--border);
            border-radius: 8px;
            background: var(--bg-input);
            color: var(--text-muted);
            font-size: 0.78rem;
            font-weight: 600;
            line-height: 1.2;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .timeline-move-btn:hover { background: var(--bg-hover); border-color: var(--accent-secondary); color: var(--accent-secondary); }
        .timeline-dismiss-btn {
            position: static;
            width: 30px;
            height: 30px;
            padding: 0;
            margin: 0;
            border: 1px solid var(--border);
            border-radius: 8px;
            background: var(--bg-input);
            color: var(--text-muted);
            font-size: 1.15rem;
            line-height: 1;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .timeline-dismiss-btn:hover { background: rgba(220, 53, 69, 0.15); border-color: #dc3545; color: #dc3545; }
        @media (hover: hover) {
            .timeline-item:hover { transform: translateX(5px); border-color: var(--accent-secondary); }
        }
        .timeline-marker-num { width: 28px; height: 28px; background: var(--bg-input); border: 2px solid var(--accent-secondary); color: var(--accent-secondary); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 0.8em; flex-shrink: 0; }
        .timeline-content { flex: 1 1 0; min-width: 0; }
        .timeline-content h4 { margin: 0 0 5px 0; font-size: 1em; color: var(--text-main); }
        .timeline-desc { font-size: 0.9em; color: var(--text-muted); }
        .timeline-meta { margin-top: 5px; font-size: 0.8em; color: var(--text-muted); opacity: 0.7; }
        .timeline-extras { margin-top: 8px; display: flex; gap: 10px; flex-wrap: wrap; }
        .timeline-extra-pill { background: var(--bg-input); border: 1px solid var(--border); padding: 4px 8px; border-radius: 4px; font-size: 0.8em; color: var(--accent-secondary); display: inline-flex; align-items: center; gap: 5px; text-decoration: none; }
        .timeline-extra-pill:hover { background: var(--bg-hover); }
        .timeline-status-pill { font-size: 0.72em; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; padding: 3px 8px; border-radius: 6px; margin-left: 8px; vertical-align: middle; }

        .dest-row { display: flex; gap: 10px; align-items: center; margin-bottom: 10px; }
        .dest-row input { margin-bottom: 0; }
        .dest-days-container { display: flex; align-items: center; gap: 5px; flex-shrink: 0; width: 100px; }
        .dest-days-label { font-size: 0.8em; color: var(--text-muted); }
        
        .suggestion-options { display: flex; flex-wrap: wrap; gap: 15px; margin-top: 20px; background: var(--bg-input); padding: 10px; border-radius: 8px; }
        .suggestion-options label { font-size: 0.9em; cursor: pointer; display: flex; align-items: center; gap: 5px; color: var(--text-main); }
        .suggestion-options input { width: auto; margin: 0; }

        footer { padding: 20px; text-align: center; font-size: 0.8em; color: var(--text-muted); border-top: 1px solid var(--border); margin-top: 40px; }

        /* --- PDF EXPORT HIDDEN TEMPLATE --- */
        #pdf-template {
            position: absolute; left: -9999px; top: 0; /* Off-screen */
            width: 800px; /* Fixed width */
            font-family: 'Helvetica', 'Arial', sans-serif;
            color: #000; background: #fff; padding: 40px;
        }
        
        /* --- MOBILE OPTIMIZATIONS --- */
        @media (max-width: 768px) {
            #tab-planner .list-card {
                padding: 14px;
                margin-bottom: 14px;
            }
            .project-grid { grid-template-columns: 1fr; }
            .dash-header { flex-direction: column; align-items: stretch; gap: 15px; }
            .dash-header div { justify-content: space-between; }
            .trip-editor-header-bar { align-items: center; flex-wrap: nowrap; }
            .trip-editor-header-bar #editor-title {
                font-size: clamp(0.8rem, 3.5vw, 1.05rem);
            }
            .trip-editor-header-actions {
                justify-content: flex-end;
                flex-shrink: 0;
            }
            .trip-header-icon-btn { width: 34px; height: 34px; font-size: 1em; }
            .trip-exit-btn { padding-left: 8px; padding-right: 8px; font-size: 0.78em; }

            /* Planner tab: assistant fills viewport below sticky header; chat scrolls inside panel */
            #tab-planner.tab-view.active {
                gap: 8px;
                min-height: calc(100dvh - 148px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
            }
            #tab-planner .trip-details-collapsible {
                flex-shrink: 0;
            }
            #tab-planner .planner-ai-unified,
            #tab-planner .trip-ai-bar.planner-ai-unified {
                flex: 1 1 auto;
                display: flex;
                flex-direction: column;
                min-height: 0;
                max-width: 100%;
                overflow: hidden;
                padding: 10px;
                margin-bottom: 0;
            }
            #tab-planner .planner-ai-collapsible {
                flex: 1 1 auto;
                min-height: 0;
                display: flex;
                flex-direction: column;
            }
            #tab-planner .planner-ai-collapsible-body {
                flex: 1 1 auto;
                min-height: 0;
                display: flex;
                flex-direction: column;
            }
            #tab-planner .planner-chat-thread-hint {
                flex-shrink: 0;
                font-size: 0.8em;
                margin: 0 0 6px 0;
            }
            #tab-planner .planner-chat-log {
                flex: 1 1 auto;
                min-height: 140px;
                max-height: none;
                overflow-y: auto;
                overflow-x: hidden;
                -webkit-overflow-scrolling: touch;
                overscroll-behavior: contain;
                margin-bottom: 6px;
            }
            #tab-planner .planner-chat-msg {
                max-width: 92%;
            }
            #tab-planner .planner-chat-composer {
                flex-shrink: 0;
                position: sticky;
                bottom: 0;
                z-index: 2;
                margin-top: auto;
                padding-bottom: max(4px, env(safe-area-inset-bottom));
                background: var(--bg-card);
            }
            #tab-planner .planner-chat-composer .planner-chat-input-field {
                font-size: 16px; /* avoids iOS zoom-on-focus */
            }

            /* Planner: thumb + text in one row; actions full width below (no empty column under thumb) */
            #tab-planner .list-item--planner .item-inner-row {
                display: flex;
                flex-direction: row;
                gap: 10px;
                align-items: flex-start;
                min-width: 0;
            }
            #tab-planner .list-item--planner .img-container {
                width: 72px;
                flex-shrink: 0;
            }
            #tab-planner .list-item--planner .item-thumb {
                width: 72px;
                height: 72px;
            }
            #tab-planner .list-item--planner .item-content {
                min-width: 0;
                text-align: left;
            }
            #tab-planner .list-item--planner .item-controls {
                width: 100%;
                max-width: 100%;
                margin-top: 4px;
                padding-top: 10px;
                border-top: 1px solid var(--border);
                justify-content: flex-start;
                flex-direction: row;
                flex-wrap: wrap;
                align-items: center;
                align-content: flex-start;
                gap: 6px 8px;
            }
            #tab-planner .list-item--planner .item-controls .btn {
                flex: 0 1 auto;
                max-width: 100%;
            }
            .item-inner { flex-direction: column; }
            .img-container { width: 100%; }
            .item-thumb { width: 100%; height: 120px; }
            .item-controls { flex-direction: row; justify-content: space-between; width: 100%; margin-top: 10px; border-top: 1px solid var(--border); padding-top: 10px; }
            .dest-card { flex-direction: column; }
            .dest-img { width: 100%; height: 200px; }
            .fin-dashboard { grid-template-columns: 1fr; }
            .detail-header { flex-direction: column; }
            .detail-img { width: 100%; height: 150px; }
            .criteria-group { min-width: 45%; }
            #wizard-overlay > div { width: 95% !important; padding: 20px !important; }
            .theme-toggle-btn { top: 10px; right: 10px; width: 35px; height: 35px; font-size: 1em; }

            /* Itinerary: keep toolbar row — AI tips left, actions right */
            .itinerary-toolbar { flex-wrap: nowrap; align-items: center; }
            .itinerary-toolbar-cluster--leading {
                flex: 1 1 0;
                min-width: 0;
                overflow: hidden;
            }
            .itinerary-toolbar-cluster--end {
                flex: 0 0 auto;
                flex-wrap: nowrap;
                margin-left: auto;
                justify-content: flex-end;
            }
            .itinerary-toolbar-cluster--end .btn-sm {
                padding-left: 0.45rem;
                padding-right: 0.45rem;
                font-size: 0.72em;
            }
            .itinerary-toolbar-cluster--leading .itinerary-ai-tips-toggle-text {
                overflow: hidden;
                text-overflow: ellipsis;
                white-space: nowrap;
                display: inline-block;
                max-width: 100%;
                vertical-align: bottom;
            }
            .itinerary-ai-tips-toggle-label { font-size: 0.66em; gap: 4px; }
            .itinerary-ai-tips-toggle-label input[type="checkbox"] { width: 13px; height: 13px; }
            #tab-itinerary #map { height: 260px !important; }
            .map-legend { font-size: 0.72em; gap: 8px 12px; }
            .map-legend-hint { margin-bottom: 12px; font-size: 0.72em; }
            .timeline-day { margin-bottom: 22px; margin-left: 0; margin-right: 0; }
            .day-header-container { margin-bottom: 10px; padding-bottom: 8px; gap: 8px; }
            .day-date { font-size: 1.05em; }
            .day-badge { font-size: 0.8em; padding: 4px 10px; }
            .day-itinerary-actions {
                flex-basis: 100%;
                margin-left: 0;
                justify-content: flex-start;
                margin-top: 2px;
            }
            .timeline-item {
                margin-left: 0;
                margin-bottom: 10px;
                padding: 10px 12px;
                gap: 8px;
            }
            .timeline-item-actions.timeline-item-actions--footer {
                margin-top: 6px;
                padding-top: 6px;
            }
            .timeline-leg-row {
                margin-left: 0;
                padding-left: 0;
            }
            .timeline-leg-text-btn {
                font-size: 0.64em;
            }
            .timeline-leg-dir {
                font-size: 0.62em;
            }
            .timeline-marker-num {
                width: 24px;
                height: 24px;
                font-size: 0.72em;
            }
            .timeline-item-compact-toggle,
            .timeline-note-compact-toggle {
                width: 26px;
                min-height: 26px;
                font-size: 0.8em;
            }
            .timeline-drag-handle {
                width: 26px;
                min-height: 32px;
                font-size: 0.9em;
            }
            .timeline-content h4 { font-size: 0.92em; margin-bottom: 4px; }
            .timeline-item-basic-line {
                white-space: normal;
                display: -webkit-box;
                -webkit-line-clamp: 3;
                -webkit-box-orient: vertical;
                overflow: hidden;
                font-size: 0.78em;
            }
            .timeline-desc { font-size: 0.84em; line-height: 1.4; }
            .timeline-meta { font-size: 0.74em; margin-top: 4px; }
            .timeline-extras { margin-top: 6px; gap: 6px; }
            .timeline-extra-pill { font-size: 0.74em; padding: 3px 6px; }
            .timeline-item-status-block .timeline-status-pill { font-size: 0.65em; padding: 2px 6px; margin-left: 0; }
            .timeline-day-note {
                margin-left: 0;
                margin-bottom: 10px;
                padding: 10px 12px;
                gap: 8px;
            }
            .timeline-note-title { font-size: 0.88em; }
            .timeline-note-one-line {
                white-space: normal;
                display: -webkit-box;
                -webkit-line-clamp: 3;
                -webkit-box-orient: vertical;
                overflow: hidden;
                font-size: 0.78em;
            }
            .timeline-note-body-preview { font-size: 0.8em; }
            .location-subheader { margin: 10px 0 8px 0; padding-left: 4px; font-size: 0.85em; }
        }

        /* Very narrow phones: stack timeline toolbar — AI tips row, then actions right */
        @media (max-width: 420px) {
            #tab-itinerary .itinerary-toolbar--above-timeline {
                flex-wrap: wrap;
            }
            #tab-itinerary .itinerary-toolbar--above-timeline .itinerary-toolbar-cluster--leading {
                flex: 1 1 100%;
            }
            #tab-itinerary .itinerary-toolbar--above-timeline .itinerary-toolbar-cluster--end {
                flex: 1 1 100%;
                margin-left: 0;
                justify-content: flex-end;
                flex-wrap: wrap;
                gap: 6px;
            }
        }

@keyframes spin { 100% { transform:rotate(360deg); } }