:root {
        --primary: #2563eb;
        --primary-dark: #1d4ed8;
        --success: #10b981;
        --warning: #f59e0b;
        --danger: #ef4444;
        --bg: #f8fafc;
        --text: #1e293b;
        --muted: #64748b;
        --card: #ffffff;
        --border: #e2e8f0;
        --sidebar: #0f172a;
        --sidebar-hover: #1e293b;
    }
    * { box-sizing: border-box; }
    body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(--bg); color: var(--text); margin: 0; }

    /* ---------- Layout do portal ---------- */
    #app-portal { display: flex; min-height: 100vh; }
    .sidebar { width: 220px; background: var(--sidebar); color: #cbd5e1; flex-shrink: 0; display: flex; flex-direction: column; }
    .sidebar .logo { padding: 22px 20px; font-weight: bold; color: #fff; font-size: 18px; border-bottom: 1px solid #1e293b; }
    .sidebar .logo small { display: block; font-size: 11px; color: #64748b; font-weight: normal; margin-top: 2px; }
    .sidebar nav { flex: 1; padding: 10px 0; }
    .sidebar .nav-item { padding: 12px 20px; display: flex; align-items: center; gap: 10px; cursor: pointer; font-size: 14px; }
    .sidebar .nav-item:hover { background: var(--sidebar-hover); color: #fff; }
    .sidebar .nav-item.active { background: var(--primary); color: #fff; }
    .sidebar .user-box { padding: 16px 20px; border-top: 1px solid #1e293b; font-size: 12px; color: #94a3b8; }

    .main-area { flex: 1; padding: 28px 36px; max-width: 1100px; }
    .page-title { font-size: 22px; color: #0f172a; margin: 0 0 6px; }
    .page-subtitle { color: var(--muted); font-size: 13px; margin-bottom: 24px; }

    .card { background: var(--card); border-radius: 12px; box-shadow: 0 1px 3px rgba(0,0,0,0.08); padding: 22px; margin-bottom: 20px; }
    .card h3 { margin: 0 0 16px; font-size: 15px; color: #0f172a; background: #f1f5f9; padding: 10px 14px; margin: -22px -22px 18px -22px; border-radius: 12px 12px 0 0; }

    .info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 30px; }
    .info-item label { display: block; font-size: 12px; color: var(--muted); text-transform: uppercase; margin-bottom: 3px; }
    .info-item div { font-size: 14px; }

    .status { padding: 4px 10px; border-radius: 20px; font-size: 12px; font-weight: 500; white-space: nowrap; }
    .status-ativo { background: #dcfce7; color: #166534; }
    .status-aberto { background: #fef9c3; color: #854d0e; }
    .status-pago { background: #dcfce7; color: #166534; }
    .status-atrasado { background: #fee2e2; color: #991b1b; }
    .status-resolvido { background: #dcfce7; color: #166534; }
    .status-andamento { background: #fef9c3; color: #854d0e; }

    .btn-primary { background: var(--primary); color: #fff; border: none; padding: 10px 18px; border-radius: 8px; cursor: pointer; font-weight: 500; font-size: 14px; }
    .btn-primary:hover { background: var(--primary-dark); }
    .btn-secondary { padding: 8px 14px; border-radius: 6px; border: 1px solid var(--border); background: #fff; cursor: pointer; font-size: 13px; }
    .btn-secondary:hover { border-color: var(--primary); color: var(--primary); }

    table { width: 100%; border-collapse: collapse; text-align: left; }
    th { font-size: 12px; color: var(--muted); text-transform: uppercase; padding: 10px 8px; border-bottom: 1px solid var(--border); }
    td { padding: 12px 8px; border-bottom: 1px solid #f1f5f9; font-size: 14px; }

    .backup-card { border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px; margin-bottom: 12px; }
    .backup-card strong { font-size: 14px; }
    .backup-card .meta { font-size: 13px; color: var(--muted); margin-top: 6px; line-height: 1.6; }

    .alert-item { display: flex; gap: 12px; padding: 14px 0; border-bottom: 1px solid #f1f5f9; }
    .alert-item:last-child { border-bottom: none; }
    .alert-icon { font-size: 20px; }
    .alert-item .alert-title { font-size: 14px; font-weight: 500; }
    .alert-item .alert-date { font-size: 12px; color: var(--muted); margin-top: 2px; }

    .empty-state { text-align: center; padding: 40px 20px; color: var(--muted); }
    .badge-nao-lida { background: var(--danger); color: #fff; font-size: 11px; font-weight: 700; padding: 1px 7px; border-radius: 10px; margin-left: 6px; }
    .dot-nao-lida { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--danger); margin-left: 8px; }

    /* Chamados */
    .chamado-row { cursor: pointer; }
    .chamado-row:hover { background: #f8fafc; }
    .chat-thread { display: flex; flex-direction: column; gap: 12px; max-height: 360px; overflow-y: auto; padding: 4px 4px 16px; }
    .msg { max-width: 75%; padding: 10px 14px; border-radius: 10px; font-size: 14px; line-height: 1.4; }
    .msg-cliente { background: var(--primary); color: #fff; align-self: flex-end; border-bottom-right-radius: 2px; }
    .msg-suporte { background: #f1f5f9; color: var(--text); align-self: flex-start; border-bottom-left-radius: 2px; }
    .msg .msg-meta { font-size: 11px; opacity: 0.75; margin-top: 4px; }
    .chat-input { display: flex; gap: 10px; margin-top: 14px; }
    .chat-input textarea { flex: 1; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; font-family: inherit; resize: none; min-height: 44px; }

    .modal-overlay { position: fixed; inset: 0; background: rgba(15,23,42,0.5); display: flex; align-items: center; justify-content: center; z-index: 100; padding: 20px; }
    .modal-box { background: #fff; border-radius: 12px; width: 100%; max-width: 520px; padding: 26px; }
    .modal-box h3 { margin-top: 0; }
    .form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
    .form-group label { font-size: 13px; color: var(--muted); font-weight: 500; }
    .form-group input, .form-group select, .form-group textarea { padding: 9px 12px; border: 1px solid #cbd5e1; border-radius: 6px; font-size: 14px; font-family: inherit; }
    .form-group textarea { min-height: 90px; resize: vertical; }

    /* ---------- Tela de aceite (fora do portal) ---------- */
    #tela-aceite { max-width: 640px; margin: 40px auto; padding: 0 20px; }
    .tela-central { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: #0f172a; padding: 20px; }
    .aceite-progress { display: flex; gap: 8px; margin-bottom: 24px; }
    .aceite-progress .step { flex: 1; height: 4px; background: var(--border); border-radius: 4px; }
    .aceite-progress .step.done { background: var(--primary); }
    .aceite-box { background: var(--card); border-radius: 12px; padding: 32px; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1); }
    .aceite-box h2 { margin-top: 0; }
    .checkbox-line { display: flex; align-items: flex-start; gap: 10px; margin: 20px 0; font-size: 14px; }
    .checkbox-line a { color: var(--primary); }
    .logo-topo { text-align: center; font-weight: bold; font-size: 20px; color: #0f172a; margin-bottom: 24px; }