:root {
            --bg:       #0f172a;
            --surf:     #1e293b;
            --surf2:    #273549;
            --border:   #334155;
            --text:     #f1f5f9;
            --text2:    #94a3b8;
            --text3:    #475569;
            --blue:     #3b82f6;
            --blue-d:   #2563eb;
            --green:    #22c55e;
            --red:      #ef4444;
            --yellow:   #f59e0b;
            --header-h: 52px;
            --tab-h:    44px;
        }
        *, *::before, *::after { 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); font-size:14px; height:100vh; overflow:hidden; }

        /* ── Login ─────────────────────────────────── */
        #login-screen { height:100vh; display:flex; align-items:center; justify-content:center; }
        .login-card { background:var(--surf); border:1px solid var(--border); border-radius:16px; padding:40px 36px; width:100%; max-width:380px; }
        .login-logo { text-align:center; margin-bottom:28px; }
        .login-logo .icon { font-size:44px; display:block; margin-bottom:8px; }
        .login-logo h1 { font-size:22px; font-weight:700; }
        .login-logo p { font-size:13px; color:var(--text3); margin-top:4px; }
        #login-error { font-size:13px; color:var(--red); min-height:18px; margin-bottom:8px; text-align:center; }

        /* ── App Shell ──────────────────────────────── */
        #app-screen { display:none; height:100vh; flex-direction:column; }
        #app-screen.visible { display:flex; }
        .app-header { height:var(--header-h); background:var(--surf); border-bottom:1px solid var(--border); display:flex; align-items:center; padding:0 20px; gap:16px; flex-shrink:0; }
        .app-brand { font-size:16px; font-weight:700; letter-spacing:0.08em; color:var(--text2); white-space:nowrap; }
        .tab-nav { display:flex; gap:2px; flex:1; }
        .tab-btn { background:transparent; border:none; color:var(--text3); font-size:13px; font-weight:500; padding:8px 14px; border-radius:8px; cursor:pointer; white-space:nowrap; transition:background .1s, color .1s; }
        .tab-btn:hover { background:var(--surf2); color:var(--text2); }
        .tab-btn.active { background:var(--blue); color:#fff; }
        .app-user { display:flex; align-items:center; gap:12px; margin-left:auto; white-space:nowrap; }
        .app-user span { font-size:12px; color:var(--text3); }
        .app-main { flex:1; overflow-y:auto; padding:24px; }

        /* ── Responsive header: stack onto two rows and let the tabs scroll
              horizontally instead of overflowing the bar on phones/tablets. ── */
        @media (max-width:760px) {
            .app-header { height:auto; flex-wrap:wrap; padding:8px 14px; gap:8px 12px; }
            .app-brand { order:1; }
            .app-user  { order:2; margin-left:auto; gap:8px; }
            .tab-nav {
                order:3;
                flex:1 0 100%;            /* full-width second row */
                flex-wrap:nowrap;
                overflow-x:auto;
                gap:4px;
                padding-bottom:2px;
                -webkit-overflow-scrolling:touch;
                scrollbar-width:none;     /* Firefox */
            }
            .tab-nav::-webkit-scrollbar { display:none; }   /* WebKit */
            .tab-btn { flex:0 0 auto; padding:7px 12px; }
            .app-main { padding:16px 14px; }
        }
        /* Very narrow: drop the user label so the controls always fit one row. */
        @media (max-width:440px) {
            .app-user span { display:none; }
        }
        #trial-banner.warn    { background:#fff7ed; border-bottom:1px solid #fed7aa; color:#92400e; }
        #trial-banner.expired { background:#fef2f2; border-bottom:1px solid #fecaca; color:#991b1b; }

        /* ── Tab Sections ───────────────────────────── */
        .tab-section { display:none; }
        .tab-section.active { display:block; }
        .section-head { display:flex; align-items:center; gap:12px; margin-bottom:20px; flex-wrap:wrap; }
        .section-head h2 { font-size:18px; font-weight:700; flex:1; }

        /* ── Buttons ────────────────────────────────── */
        .btn { border:none; border-radius:8px; padding:8px 16px; font-size:13px; font-weight:500; cursor:pointer; transition:background .1s, opacity .1s; }
        .btn:disabled { opacity:.4; pointer-events:none; }
        .btn-primary { background:var(--blue); color:#fff; }
        .btn-primary:hover { background:var(--blue-d); }
        .btn-secondary { background:var(--surf2); color:var(--text); border:1px solid var(--border); }
        .btn-secondary:hover { background:#2d3f55; }
        .btn-danger { background:#7f1d1d; color:#fca5a5; border:1px solid #991b1b; }
        .btn-danger:hover { background:#991b1b; }
        .btn-ghost { background:transparent; color:var(--text3); border:1px solid var(--border); }
        .btn-ghost:hover { color:var(--text2); background:var(--surf2); }
        .btn-sm { padding:5px 10px; font-size:12px; }
        .btn-icon { background:transparent; border:none; cursor:pointer; color:var(--text3); padding:4px 8px; border-radius:6px; font-size:13px; }
        .btn-icon:hover { background:var(--surf2); color:var(--text); }

        /* ── Forms ──────────────────────────────────── */
        .field { margin-bottom:16px; }
        .field label { display:block; font-size:12px; font-weight:600; color:var(--text2); text-transform:uppercase; letter-spacing:.06em; margin-bottom:6px; }
        input[type=text], input[type=email], input[type=password], input[type=number], input[type=date], input[type=time], select, textarea {
            width:100%; background:var(--surf2); border:1px solid var(--border); border-radius:8px;
            color:var(--text); font-size:14px; padding:9px 12px; outline:none; transition:border-color .1s;
        }
        input:focus, select:focus, textarea:focus { border-color:var(--blue); }
        input[type=checkbox] { width:auto; accent-color:var(--blue); }
        .field-row { display:grid; grid-template-columns:1fr 1fr; gap:12px; }
        .field-row-3 { display:grid; grid-template-columns:1fr 1fr 1fr; gap:12px; }
        .input-prefix { position:relative; }
        .input-prefix span { position:absolute; left:10px; top:50%; transform:translateY(-50%); color:var(--text3); }
        .input-prefix input { padding-left:24px; }
        .hint { font-size:11px; color:var(--text2); margin-top:4px; }

        /* ── Tables ─────────────────────────────────── */
        .table-wrap { overflow-x:auto; border-radius:10px; border:1px solid var(--border); }
        table { width:100%; border-collapse:collapse; }
        thead th { background:var(--surf2); padding:10px 14px; text-align:left; font-size:11px; font-weight:600; color:var(--text3); text-transform:uppercase; letter-spacing:.06em; white-space:nowrap; }
        tbody tr { border-top:1px solid var(--border); }
        tbody tr:hover { background:rgba(255,255,255,.02); }
        td { padding:10px 14px; vertical-align:middle; font-size:13px; }
        .td-actions { display:flex; gap:4px; justify-content:flex-end; }

        /* ── Badges ─────────────────────────────────── */
        .badge { display:inline-flex; align-items:center; gap:4px; font-size:11px; font-weight:600; padding:3px 8px; border-radius:20px; }
        .badge-green  { background:#14532d; color:#86efac; }
        .badge-red    { background:#7f1d1d; color:#fca5a5; }
        .badge-yellow { background:#713f12; color:#fde68a; }
        .badge-blue   { background:#1e3a5f; color:#93c5fd; }
        .badge-gray   { background:var(--surf2); color:var(--text3); }

        /* ── Cards ──────────────────────────────────── */
        .card { background:var(--surf); border:1px solid var(--border); border-radius:12px; padding:20px; margin-bottom:20px; }
        .card-title { font-size:13px; font-weight:600; color:var(--text2); text-transform:uppercase; letter-spacing:.06em; margin-bottom:14px; }

        /* ── Modal ──────────────────────────────────── */
        .modal-overlay { position:fixed; inset:0; background:rgba(0,0,0,.6); display:none; align-items:center; justify-content:center; z-index:100; padding:20px; }
        .modal-overlay.open { display:flex; }
        .modal-box { background:var(--surf); border:1px solid var(--border); border-radius:16px; width:100%; max-width:560px; max-height:90vh; display:flex; flex-direction:column; }
        .modal-box.modal-lg { max-width:720px; }
        .modal-header { display:flex; align-items:center; padding:20px 24px 0; }
        .modal-header h3 { font-size:17px; font-weight:700; flex:1; }
        .modal-close { background:transparent; border:none; color:var(--text3); font-size:20px; cursor:pointer; padding:0 4px; line-height:1; }
        .modal-close:hover { color:var(--text); }
        .modal-body { padding:20px 24px; overflow-y:auto; flex:1; }
        .modal-footer { padding:16px 24px; border-top:1px solid var(--border); display:flex; justify-content:flex-end; gap:10px; flex-shrink:0; }

        /* ── Toast ──────────────────────────────────── */
        #toast { position:fixed; bottom:24px; right:24px; z-index:200; display:flex; flex-direction:column; gap:8px; pointer-events:none; }
        .toast-item { background:var(--surf); border:1px solid var(--border); border-radius:10px; padding:12px 16px; font-size:13px; box-shadow:0 8px 24px rgba(0,0,0,.4); display:flex; align-items:center; gap:10px; min-width:240px; animation:slideIn .2s ease; }
        .toast-item.success { border-left:3px solid var(--green); }
        .toast-item.error   { border-left:3px solid var(--red); }
        @keyframes slideIn { from { transform:translateX(20px); opacity:0; } to { transform:none; opacity:1; } }
        .spinner-sm { display:inline-block; width:14px; height:14px; border:2px solid var(--border); border-top-color:var(--blue); border-radius:50%; animation:spin .7s linear infinite; vertical-align:middle; margin-right:6px; }
        @keyframes spin { to { transform:rotate(360deg); } }

        /* ── Schedule grid ──────────────────────────── */
        .schedule-grid { display:grid; grid-template-columns:repeat(7,1fr); gap:6px; margin-bottom:12px; }
        .day-toggle { text-align:center; }
        .day-toggle input[type=checkbox] { display:none; }
        .day-toggle label { display:flex; align-items:center; justify-content:center; height:36px; border-radius:8px; font-size:12px; font-weight:600; cursor:pointer; border:1px solid var(--border); color:var(--text3); transition:background .1s, color .1s, border-color .1s; }
        .day-toggle input:checked + label { background:var(--blue); color:#fff; border-color:var(--blue); }

        /* ── Filters bar ────────────────────────────── */
        .filters { display:flex; gap:8px; flex-wrap:wrap; align-items:center; }
        .filters input, .filters select { width:auto; flex:none; }
        .filters input[type=date] { width:148px; }
        .filters select { width:160px; }

        /* ── Payroll line editable ──────────────────── */
        .pay-line-input { background:var(--surf2); border:1px solid var(--border); border-radius:6px; color:var(--text); font-size:13px; padding:4px 8px; width:120px; min-width:100px; }

        /* ── Kiosk URL card ─────────────────────────── */
        .kiosk-url-box { display:flex; gap:8px; align-items:center; background:var(--surf2); border:1px solid var(--border); border-radius:8px; padding:10px 14px; }
        .kiosk-url-text { flex:1; font-family:monospace; font-size:12px; color:var(--text2); word-break:break-all; }

        /* ── Empty state ─────────────────────────────── */
        .empty { text-align:center; padding:48px 20px; color:var(--text2); }
        .empty .empty-icon { font-size:40px; margin-bottom:12px; }

        /* ── Overview ───────────────────────────────── */
        .stat-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:12px; margin-bottom:20px; }
        @media (max-width:900px) { .stat-grid { grid-template-columns:repeat(2,1fr); } }
        .stat-card { background:var(--surf); border:1px solid var(--border); border-radius:12px; padding:18px 20px; transition:border-color .15s; }
        .stat-card:hover { border-color:var(--blue); }
        .stat-card-green { border-left:3px solid var(--green); }
        .stat-card-yellow { border-left:3px solid var(--yellow); }
        .stat-label { font-size:11px; font-weight:600; color:var(--text3); text-transform:uppercase; letter-spacing:.06em; margin-bottom:6px; }
        .stat-value { font-size:28px; font-weight:700; line-height:1; margin-bottom:4px; }
        .stat-sub { font-size:12px; color:var(--text2); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
        .overview-grid { display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-bottom:20px; }
        @media (max-width:700px) { .overview-grid { grid-template-columns:1fr; } }
        .today-list { display:flex; flex-direction:column; }
        .today-row { display:flex; align-items:center; gap:10px; padding:8px 0; border-bottom:1px solid var(--border); }
        .today-row:last-child { border-bottom:none; }
        .today-dot { width:10px; height:10px; border-radius:50%; flex-shrink:0; }
        .dot-in  { background:var(--green); box-shadow:0 0 0 3px rgba(34,197,94,.15); }
        .dot-out { background:var(--blue); }
        .dot-absent { background:var(--border); }
        .today-info { flex:1; min-width:0; }
        .today-name { font-size:13px; font-weight:500; display:block; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
        .today-role { font-size:11px; color:var(--text3); }
        .today-status { display:flex; align-items:center; gap:4px; flex-shrink:0; }
        .pending-list { display:flex; flex-direction:column; }
        .pending-row { display:flex; align-items:center; gap:12px; padding:12px 0; border-bottom:1px solid var(--border); }
        .pending-row:last-child { border-bottom:none; }
        .pending-count { width:36px; height:36px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:15px; font-weight:700; flex-shrink:0; }
        .count-yellow { background:#713f12; color:#fde68a; }
        .count-zero { background:var(--surf2); color:var(--text3); font-size:13px; }
        .pending-info { flex:1; }
        .pending-type { font-size:13px; font-weight:500; display:block; }
        .pending-hint { font-size:11px; color:var(--text2); }

        /* ── Activity feed ──────────────────────────── */
        .feed-item { display:flex; gap:12px; align-items:flex-start; padding:12px 0; border-bottom:1px solid var(--border); }
        .feed-dot { width:8px; height:8px; border-radius:50%; margin-top:5px; flex-shrink:0; }
        .feed-dot.in  { background:var(--green); }
        .feed-dot.out { background:var(--blue); }
        .feed-dot.adj { background:var(--yellow); }
        .feed-body { flex:1; }
        .feed-body strong { color:var(--text); }
        .feed-body .feed-time { font-size:11px; color:var(--text2); margin-top:2px; }