/* Environment banner */
        .env-banner {
            text-align: center; font-weight: 600; font-size: 0.8rem;
            letter-spacing: 0.05em; text-transform: uppercase; padding: 0.3rem;
        }
        .env-banner.local {
            background: #6f42c1; color: #fff;
        }
        .env-banner.staging {
            background: #f47738; color: #fff;
        }

        :root {
            --bg:       #f5f6f7;
            --card-bg:  #ffffff;
            --text:     #1a1a1a;
            --muted:    #6b7280;
            --accent:   #1d70b8;
            --border:   #d2d6db;
            --green:    #00703c;
            --red:      #d4351c;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            background: var(--bg); color: var(--text); line-height: 1.5;
        }
        header {
            background: var(--text); color: #fff; padding: 1rem 2rem;
            display: flex; align-items: center; gap: 1rem;
        }
        header h1 { font-size: 1.4rem; font-weight: 600; }
        .brand-link {
            color: inherit;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .brand-icon {
            width: 1.1em;
            height: 1.1em;
            flex: 0 0 auto;
            vertical-align: middle;
        }
        .brand-heading {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }
        header .meta { margin-left: auto; font-size: 0.85rem; color: #aaa; }
        .tabs {
            display: flex; background: var(--card-bg); border-bottom: 1px solid var(--border);
            padding: 0 2rem; gap: 0;
        }
        .tab {
            padding: 0.75rem 1.25rem; cursor: pointer; border-bottom: 3px solid transparent;
            font-size: 0.9rem; color: var(--muted); font-weight: 500;
        }
        .tab:hover { color: var(--text); }
        .tab.active { color: var(--accent); border-bottom-color: var(--accent); }
        main { padding: 1.5rem 2rem; max-width: 1400px; margin: 0 auto; }
        .panel { display: none; }
        .panel.active { display: block; }

        /* Cards */
        .cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
        .card {
            background: var(--card-bg); border: 1px solid var(--border);
            border-radius: 8px; padding: 1.25rem;
        }
        .card .label { font-size: 0.8rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; line-height: 1.3; }
        .card .sparkline { display: block; width: 100%; height: 32px; margin: 0.25rem 0; }
        .card .value { font-size: 1.8rem; font-weight: 700; margin-top: 0.25rem; }
        .card .sub { font-size: 0.85rem; color: var(--muted); }
        .change-value { display: flex; align-items: center; gap: 0.4rem; }
        .change-value.up { color: var(--red); }
        .change-value.down { color: var(--green); }
        .change-value.flat { color: var(--muted); }
        .change-arrow { font-size: 1.4rem; line-height: 1; }

        /* Charts */
        .chart-container {
            background: var(--card-bg); border: 1px solid var(--border);
            border-radius: 8px; padding: 1.25rem; margin-bottom: 1.5rem;
        }
        .chart-container h3 { font-size: 1rem; margin-bottom: 0.75rem; }
        .chart-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-bottom: 1.5rem; }
        canvas { width: 100% !important; }

        /* Controls */
        .controls { display: flex; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; align-items: end; }
        .control label { display: block; font-size: 0.75rem; color: var(--muted); margin-bottom: 0.15rem; }
        .control label[title] { cursor: help; text-decoration: underline dotted var(--muted); text-underline-offset: 2px; }
        .control select, .control input {
            padding: 0.3rem 0.5rem; border: 1px solid var(--border);
            border-radius: 5px; font-size: 0.85rem; background: var(--card-bg);
        }
        .control select { min-width: 120px; }

        /* Tom Select overrides */
        .ts-wrapper { min-width: 120px; }
        .ts-wrapper .ts-control {
            font-size: 0.85rem; border: 1px solid var(--border);
            border-radius: 5px; background: var(--card-bg); padding: 0.2rem 0.4rem;
        }
        .ts-wrapper .ts-control .item {
            font-size: 0.8rem; padding: 0.05rem 0.4rem; border-radius: 3px;
            background: var(--border); color: var(--text);
        }
        .ts-wrapper .ts-dropdown {
            font-size: 0.8rem; border: 1px solid var(--border);
            border-radius: 6px; background: var(--card-bg);
        }
        .ts-wrapper .ts-dropdown .option { padding: 0.3rem 0.5rem; }
        .ts-wrapper .ts-dropdown .active { background: var(--border); }

        .filter-group {
            display: flex; gap: 0.75rem; flex-wrap: wrap; align-items: end;
            padding: 0.4rem 0;
        }
        .filter-group + .filter-group { border-top: 1px solid var(--border); }
        button.primary {
            padding: 0.5rem 1.25rem; background: var(--accent); color: #fff;
            border: none; border-radius: 6px; cursor: pointer; font-size: 0.9rem;
            font-weight: 500;
        }
        button.primary:hover { opacity: 0.9; }

        /* Map */
        #map { height: calc(100vh - 220px); min-height: 400px; border-radius: 8px; border: 1px solid var(--border); margin-bottom: 1.5rem; position: relative; }

        /* Price-coloured cluster icons (override default MarkerCluster heat colours) */
        .price-cluster-icon { background: transparent !important; }
        .price-cluster {
            border-radius: 50%; display: flex; align-items: center; justify-content: center;
            border: 2px solid rgba(255,255,255,0.85); box-shadow: 0 0 4px rgba(0,0,0,0.3);
        }
        .price-cluster span {
            color: #fff; font-weight: 700; font-size: 0.7rem; text-shadow: 0 1px 2px rgba(0,0,0,0.5);
        }

        .map-legend {
            position: absolute; bottom: 20px; right: 10px; z-index: 1000;
            background: rgba(255,255,255,0.92); padding: 8px 12px; border-radius: 6px;
            border: 1px solid var(--border); font-size: 0.78rem; line-height: 1.6;
        }
        .map-legend .gradient {
            width: 120px; height: 12px; border-radius: 3px;
            background: linear-gradient(to right, #00703c, #f47738, #d4351c);
            margin: 4px 0;
        }
        .map-legend .labels { display: flex; justify-content: space-between; font-size: 0.72rem; color: var(--muted); }
        .map-loading {
            position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
            z-index: 1000; background: rgba(255,255,255,0.9); padding: 0.75rem 1.5rem;
            border-radius: 6px; border: 1px solid var(--border); font-size: 0.9rem;
            display: none;
        }

        /* Table */
        .table-wrap {
            background: var(--card-bg); border: 1px solid var(--border);
            border-radius: 8px; overflow-x: auto;
        }
        table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
        th { background: var(--bg); text-align: left; padding: 0.6rem 1rem; font-weight: 600; border-bottom: 2px solid var(--border); }
        th.sortable { cursor: pointer; user-select: none; position: relative; padding-right: 1.5rem; }
        th.sortable:hover { background: #e8ecf0; }
        th.sortable::after { content: '\2195'; position: absolute; right: 0.4rem; opacity: 0.3; font-size: 0.75rem; }
        th.sortable.asc::after { content: '\25B2'; opacity: 0.7; }
        th.sortable.desc::after { content: '\25BC'; opacity: 0.7; }
        td { padding: 0.5rem 1rem; border-bottom: 1px solid var(--border); }
        tr:hover td { background: #f0f4ff; }
        .tag { display: inline-block; background: #fef3c7; color: #92400e; padding: 0.1rem 0.5rem; border-radius: 4px; font-size: 0.8rem; margin: 0.1rem; }
        .pagination { display: flex; gap: 0.5rem; margin-top: 1rem; align-items: center; justify-content: center; }
        .pagination button { padding: 0.4rem 1rem; border: 1px solid var(--border); border-radius: 6px; background: var(--card-bg); cursor: pointer; }
        .pagination button:disabled { opacity: 0.4; cursor: default; }
        .pagination .info { font-size: 0.85rem; color: var(--muted); }

        .loading { text-align: center; padding: 3rem; color: var(--muted); }

        /* Admin */
        .btn-delete {
            padding: 0.25rem 0.6rem; border: 1px solid var(--red); border-radius: 4px;
            background: #fff; color: var(--red); cursor: pointer; font-size: 0.8rem;
        }
        .btn-delete:hover { background: var(--red); color: #fff; }
        .btn-delete:disabled { opacity: 0.4; cursor: not-allowed; border-color: var(--muted); color: var(--muted); }
        .btn-delete:disabled:hover { background: #fff; color: var(--muted); }
        .category-tag {
            display: inline-block; padding: 0.15rem 0.5rem; border-radius: 4px;
            font-size: 0.8rem; font-weight: 500;
        }
        .category-tag.supermarket { background: #d4edda; color: #155724; }
        .category-tag.major-oil { background: #cce5ff; color: #004085; }
        .category-tag.motorway { background: #f8d7da; color: #721c24; }
        .category-tag.motorway-operator { background: #fde4d0; color: #6e3619; }
        .category-tag.fuel-group { background: #e8e9f5; color: #4a4d80; }
        .category-tag.convenience { background: #fff3cd; color: #856404; }
        .category-tag.independent { background: #f5f6f7; color: var(--muted); }
        .category-tag.uncategorised { background: #e2e3e5; color: #383d41; border: 1px dashed #adb1bd; }
        .status-msg {
            padding: 0.5rem 1rem; border-radius: 6px; margin-bottom: 1rem;
            font-size: 0.9rem; display: none;
        }
        .status-msg.success { display: block; background: #d4edda; color: #155724; }
        .status-msg.error { display: block; background: #f8d7da; color: #721c24; }

        /* Login overlay */
        #login-overlay {
            position: fixed; inset: 0; z-index: 9999;
            background: var(--bg);
            display: flex; align-items: center; justify-content: center;
        }
        #login-overlay.hidden { display: none; }
        .login-box {
            background: var(--card-bg); border: 1px solid var(--border);
            border-radius: 12px; padding: 2.5rem; width: 360px; max-width: 90vw;
            box-shadow: 0 4px 24px rgba(0,0,0,0.08);
        }
        .login-box h2 { font-size: 1.3rem; margin-bottom: 1.5rem; text-align: center; }
        .login-box label { display: block; font-size: 0.85rem; color: var(--muted); margin-bottom: 0.25rem; }
        .login-box input {
            width: 100%; padding: 0.6rem 0.75rem; border: 1px solid var(--border);
            border-radius: 6px; font-size: 0.95rem; margin-bottom: 1rem; background: var(--card-bg);
        }
        .login-box button {
            width: 100%; padding: 0.65rem; background: var(--accent); color: #fff;
            border: none; border-radius: 6px; font-size: 1rem; font-weight: 500; cursor: pointer;
        }
        .login-box button:hover { opacity: 0.9; }
        .login-box button:disabled { opacity: 0.5; cursor: default; }
        .login-error {
            background: #f8d7da; color: #721c24; padding: 0.5rem 0.75rem;
            border-radius: 6px; font-size: 0.85rem; margin-bottom: 1rem; display: none;
        }
        .login-error.visible { display: block; }
        #logout-btn {
            background: transparent; border: 1px solid #666; color: #aaa;
            padding: 0.3rem 0.8rem; border-radius: 4px; cursor: pointer; font-size: 0.8rem;
        }
        #logout-btn:hover { border-color: #aaa; color: #fff; }

        /* Download buttons */
        .download-btns {
            display: inline-flex; gap: 0.4rem; margin-left: auto;
        }
        .download-btns button {
            padding: 0.35rem 0.75rem; border: 1px solid var(--border);
            border-radius: 5px; background: var(--card-bg); cursor: pointer;
            font-size: 0.8rem; color: var(--muted); font-weight: 500;
        }
        .download-btns button:hover { background: var(--bg); color: var(--text); }
        .download-btns button:disabled { opacity: 0.4; cursor: default; }
        .dl-scope-radios {
            display: inline-flex; gap: 0.15rem; font-size: 0.8rem; color: var(--muted);
            border: 1px solid var(--border); border-radius: 5px; padding: 0.2rem 0.5rem;
            align-items: center; white-space: nowrap;
        }
        .dl-scope-radios label { cursor: pointer; display: inline-flex; align-items: center; gap: 0.15rem; }
        .dl-scope-radios input[type="radio"] { margin: 0; }
        .dl-history-label { white-space: normal; line-height: 1.2; }
        /* Let the station-trend helper text wrap before the whole controls row wraps */
        #panel-station-trend .download-btns {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 0.4rem;
            flex: 1 1 14rem;
            min-width: 0;
        }
        #panel-station-trend .download-btns > span {
            white-space: normal;
            text-align: right;
            line-height: 1.2;
            max-width: 12.5rem;
        }
        #panel-station-trend .download-btns button {
            flex: 0 0 auto;
        }
        .controls-row {
            display: flex; align-items: center; flex-wrap: wrap; gap: 0.75rem;
        }

        .data-section-summary {
            flex: 1 1 24rem;
            margin: 0;
            font-size: 0.82rem;
            color: var(--muted);
            line-height: 1.35;
            max-width: 52rem;
        }

        @media (max-width: 768px) {
            .chart-row { grid-template-columns: 1fr; }
            main { padding: 1rem; }
            .tabs { padding: 0 1rem; overflow-x: auto; }
            .data-section-summary {
                flex-basis: 100%;
                order: 3;
            }
        }

        /* Price editor */
        .price-editor-row td { vertical-align: middle; }
        .price-editor-row .correction-input {
            width: 5rem; padding: 0.25rem 0.4rem; border: 1px solid var(--accent);
            border-radius: 4px; font-size: 0.85rem; text-align: right;
        }
        .price-editor-row .btn-revert {
            padding: 0.2rem 0.5rem; border: 1px solid var(--muted); border-radius: 4px;
            background: #fff; color: var(--muted); cursor: pointer; font-size: 0.78rem;
        }
        .price-editor-row .btn-revert:hover { background: var(--muted); color: #fff; }
        .corrected { background: #d4edda !important; }
        .anomaly-row { background: #fff3cd; }
        .pending-correction { background: #e8f0fe !important; }
        .suggest-link { color: var(--accent); cursor: pointer; text-decoration: underline; font-size: 0.78rem; }
        .pe-save-bar {
            display: flex; align-items: center; gap: 1rem;
            padding: 0.6rem 1rem; margin-bottom: 0.75rem;
            background: #e8f0fe; border: 1px solid var(--accent); border-radius: 6px;
        }
        .btn-save-all {
            padding: 0.4rem 1.2rem; border: none; border-radius: 5px;
            background: var(--accent); color: #fff; cursor: pointer;
            font-size: 0.9rem; font-weight: 600;
        }
        .btn-save-all:hover { opacity: 0.85; }
        .btn-save-all:disabled { opacity: 0.5; cursor: not-allowed; }

        /* Toast notifications */
        .toast-container {
            position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 9999;
            display: flex; flex-direction: column-reverse; gap: 0.5rem;
            pointer-events: none;
        }
        .toast {
            pointer-events: auto;
            min-width: 260px; max-width: 400px; padding: 0.75rem 1rem;
            border-radius: 6px; font-size: 0.88rem; line-height: 1.4;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            animation: toast-in 0.25s ease-out;
        }
        .toast.success { background: var(--green); color: #fff; }
        .toast.error   { background: var(--red);   color: #fff; }
        .toast.fade-out {
            animation: toast-out 0.3s ease-in forwards;
        }
        @keyframes toast-in  { from { opacity: 0; transform: translateY(0.5rem); } to { opacity: 1; transform: none; } }
        @keyframes toast-out { from { opacity: 1; } to { opacity: 0; transform: translateY(0.5rem); } }