"use client";

import { useState, useReducer, useEffect, useCallback, useRef } from "react";
import {
  getTimeTrackingWorkers,
  getTimeTrackingTasks,
  createTimeWorker,
  resetTimeWorkerPin,
  updateTimeWorker,
  deleteTimeWorker,
  createTimeTask,
  updateTimeTask,
  deleteTimeTask,
  getTimeTrackingSettings,
  updateTimeTrackingSettings,
  type TimeWorker,
  type TimeTask,
  type TimeTrackingSettings,
} from "@/actions/time-tracking";
import AdminToggle from "./design-system/AdminToggle";
import { AdminInput,  AdminTextInput, AdminSelect  } from "./design-system/AdminFormElements";
import AdminButton from "./design-system/AdminButton";

const DAYS = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];

// ──────────────────────────────────────────────────────────────────────────
// State (useReducer)
// ──────────────────────────────────────────────────────────────────────────

type State = {
  workers: TimeWorker[];
  tasks: TimeTask[];
  loadedSettings: TimeTrackingSettings | null;
  loading: boolean;

  // Settings form
  payPeriodStartDay: number;
  payPeriodLength: number;
  dailyOvertimeThreshold: number;
  weeklyOvertimeThreshold: number;
  notificationEmails: string[];
  notificationSmsNumbers: string[];
  enableDailyAlerts: boolean;
  enableWeeklyAlerts: boolean;
  newEmail: string;
  newSms: string;
  settingsSaving: boolean;
  settingsSaved: boolean;
  settingsError: string | null;

  // Worker modal
  showWorkerModal: boolean;
  editingWorker: TimeWorker | null;
  workerName: string;
  workerRole: string;
  workerLang: string;
  workerActive: boolean;
  resetPinResult: string | null;
  workerError: string | null;
  submitting: boolean;

  // Task modal
  showTaskModal: boolean;
  editingTask: TimeTask | null;
  taskName: string;
  taskNameEs: string;
  taskUnit: string;
  taskActive: boolean;
  taskSortOrder: number;
  taskError: string | null;
};

type Action =
  | { type: "SET_WORKERS"; value: TimeWorker[] }
  | { type: "SET_TASKS"; value: TimeTask[] }
  | { type: "SET_LOADED_SETTINGS"; value: TimeTrackingSettings | null }
  | { type: "SET_LOADING"; value: boolean }
  // Settings form
  | { type: "SET_PAY_PERIOD_START_DAY"; value: number }
  | { type: "SET_PAY_PERIOD_LENGTH"; value: number }
  | { type: "SET_DAILY_OVERTIME_THRESHOLD"; value: number }
  | { type: "SET_WEEKLY_OVERTIME_THRESHOLD"; value: number }
  | { type: "SET_NOTIFICATION_EMAILS"; value: string[] }
  | { type: "ADD_EMAIL"; value: string }
  | { type: "REMOVE_EMAIL"; value: string }
  | { type: "SET_NOTIFICATION_SMS"; value: string[] }
  | { type: "ADD_SMS"; value: string }
  | { type: "REMOVE_SMS"; value: string }
  | { type: "SET_ENABLE_DAILY_ALERTS"; value: boolean }
  | { type: "SET_ENABLE_WEEKLY_ALERTS"; value: boolean }
  | { type: "SET_NEW_EMAIL"; value: string }
  | { type: "SET_NEW_SMS"; value: string }
  | { type: "SET_SETTINGS_SAVING"; value: boolean }
  | { type: "SET_SETTINGS_SAVED"; value: boolean }
  | { type: "SET_SETTINGS_ERROR"; value: string | null }
  // Worker modal
  | { type: "OPEN_ADD_WORKER" }
  | { type: "OPEN_EDIT_WORKER"; worker: TimeWorker }
  | { type: "CLOSE_WORKER_MODAL" }
  | { type: "SET_WORKER_NAME"; value: string }
  | { type: "SET_WORKER_ROLE"; value: string }
  | { type: "SET_WORKER_LANG"; value: string }
  | { type: "SET_WORKER_ACTIVE"; value: boolean }
  | { type: "SET_RESET_PIN_RESULT"; value: string | null }
  | { type: "SET_WORKER_ERROR"; value: string | null }
  | { type: "SET_SUBMITTING"; value: boolean }
  // Task modal
  | { type: "OPEN_ADD_TASK" }
  | { type: "OPEN_EDIT_TASK"; task: TimeTask }
  | { type: "CLOSE_TASK_MODAL" }
  | { type: "SET_TASK_NAME"; value: string }
  | { type: "SET_TASK_NAME_ES"; value: string }
  | { type: "SET_TASK_UNIT"; value: string }
  | { type: "SET_TASK_ACTIVE"; value: boolean }
  | { type: "SET_TASK_SORT_ORDER"; value: number }
  | { type: "SET_TASK_ERROR"; value: string | null };

const initialState: State = {
  workers: [],
  tasks: [],
  loadedSettings: null,
  loading: true,

  payPeriodStartDay: 0,
  payPeriodLength: 7,
  dailyOvertimeThreshold: 12,
  weeklyOvertimeThreshold: 56,
  notificationEmails: [],
  notificationSmsNumbers: [],
  enableDailyAlerts: true,
  enableWeeklyAlerts: true,
  newEmail: "",
  newSms: "",
  settingsSaving: false,
  settingsSaved: false,
  settingsError: null,

  showWorkerModal: false,
  editingWorker: null,
  workerName: "",
  workerRole: "worker",
  workerLang: "en",
  workerActive: true,
  resetPinResult: null,
  workerError: null,
  submitting: false,

  showTaskModal: false,
  editingTask: null,
  taskName: "",
  taskNameEs: "",
  taskUnit: "hours",
  taskActive: true,
  taskSortOrder: 0,
  taskError: null,
};

function reducer(state: State, action: Action): State {
  switch (action.type) {
    case "SET_WORKERS":
      return { ...state, workers: action.value };
    case "SET_TASKS":
      return { ...state, tasks: action.value };
    case "SET_LOADED_SETTINGS":
      // Hydrate form state from the freshly-loaded settings object
      if (!action.value) {
        return { ...state, loadedSettings: null };
      }
      return {
        ...state,
        loadedSettings: action.value,
        payPeriodStartDay: action.value.pay_period_start_day,
        payPeriodLength: action.value.pay_period_length_days,
        dailyOvertimeThreshold: action.value.daily_overtime_threshold,
        weeklyOvertimeThreshold: action.value.weekly_overtime_threshold,
        notificationEmails: action.value.notification_emails ?? [],
        notificationSmsNumbers: action.value.notification_sms_numbers ?? [],
        enableDailyAlerts: action.value.enable_daily_alerts ?? true,
        enableWeeklyAlerts: action.value.enable_weekly_alerts ?? true,
      };
    case "SET_LOADING":
      return { ...state, loading: action.value };
    case "SET_PAY_PERIOD_START_DAY":
      return { ...state, payPeriodStartDay: action.value };
    case "SET_PAY_PERIOD_LENGTH":
      return { ...state, payPeriodLength: action.value };
    case "SET_DAILY_OVERTIME_THRESHOLD":
      return { ...state, dailyOvertimeThreshold: action.value };
    case "SET_WEEKLY_OVERTIME_THRESHOLD":
      return { ...state, weeklyOvertimeThreshold: action.value };
    case "SET_NOTIFICATION_EMAILS":
      return { ...state, notificationEmails: action.value };
    case "ADD_EMAIL":
      if (!action.value || state.notificationEmails.includes(action.value)) {
        return { ...state, newEmail: "" };
      }
      return {
        ...state,
        notificationEmails: [...state.notificationEmails, action.value],
        newEmail: "",
      };
    case "REMOVE_EMAIL":
      return {
        ...state,
        notificationEmails: state.notificationEmails.filter((e) => e !== action.value),
      };
    case "SET_NOTIFICATION_SMS":
      return { ...state, notificationSmsNumbers: action.value };
    case "ADD_SMS":
      if (!action.value || state.notificationSmsNumbers.includes(action.value)) {
        return { ...state, newSms: "" };
      }
      return {
        ...state,
        notificationSmsNumbers: [...state.notificationSmsNumbers, action.value],
        newSms: "",
      };
    case "REMOVE_SMS":
      return {
        ...state,
        notificationSmsNumbers: state.notificationSmsNumbers.filter((n) => n !== action.value),
      };
    case "SET_ENABLE_DAILY_ALERTS":
      return { ...state, enableDailyAlerts: action.value };
    case "SET_ENABLE_WEEKLY_ALERTS":
      return { ...state, enableWeeklyAlerts: action.value };
    case "SET_NEW_EMAIL":
      return { ...state, newEmail: action.value };
    case "SET_NEW_SMS":
      return { ...state, newSms: action.value };
    case "SET_SETTINGS_SAVING":
      return { ...state, settingsSaving: action.value };
    case "SET_SETTINGS_SAVED":
      return { ...state, settingsSaved: action.value };
    case "SET_SETTINGS_ERROR":
      return { ...state, settingsError: action.value };
    case "OPEN_ADD_WORKER":
      return {
        ...state,
        editingWorker: null,
        workerName: "",
        workerRole: "worker",
        workerLang: "en",
        workerActive: true,
        workerError: null,
        resetPinResult: null,
        showWorkerModal: true,
      };
    case "OPEN_EDIT_WORKER":
      return {
        ...state,
        editingWorker: action.worker,
        workerName: action.worker.name,
        workerRole: action.worker.role,
        workerLang: action.worker.lang,
        workerActive: action.worker.active,
        workerError: null,
        resetPinResult: null,
        showWorkerModal: true,
      };
    case "CLOSE_WORKER_MODAL":
      return { ...state, showWorkerModal: false };
    case "SET_WORKER_NAME":
      return { ...state, workerName: action.value };
    case "SET_WORKER_ROLE":
      return { ...state, workerRole: action.value };
    case "SET_WORKER_LANG":
      return { ...state, workerLang: action.value };
    case "SET_WORKER_ACTIVE":
      return { ...state, workerActive: action.value };
    case "SET_RESET_PIN_RESULT":
      return { ...state, resetPinResult: action.value };
    case "SET_WORKER_ERROR":
      return { ...state, workerError: action.value };
    case "SET_SUBMITTING":
      return { ...state, submitting: action.value };
    case "OPEN_ADD_TASK":
      return {
        ...state,
        editingTask: null,
        taskName: "",
        taskNameEs: "",
        taskUnit: "hours",
        taskActive: true,
        taskSortOrder: 0,
        taskError: null,
        showTaskModal: true,
      };
    case "OPEN_EDIT_TASK":
      return {
        ...state,
        editingTask: action.task,
        taskName: action.task.name,
        taskNameEs: action.task.name_es ?? "",
        taskUnit: action.task.unit,
        taskActive: action.task.active,
        taskSortOrder: action.task.sort_order,
        taskError: null,
        showTaskModal: true,
      };
    case "CLOSE_TASK_MODAL":
      return { ...state, showTaskModal: false };
    case "SET_TASK_NAME":
      return { ...state, taskName: action.value };
    case "SET_TASK_NAME_ES":
      return { ...state, taskNameEs: action.value };
    case "SET_TASK_UNIT":
      return { ...state, taskUnit: action.value };
    case "SET_TASK_ACTIVE":
      return { ...state, taskActive: action.value };
    case "SET_TASK_SORT_ORDER":
      return { ...state, taskSortOrder: action.value };
    case "SET_TASK_ERROR":
      return { ...state, taskError: action.value };
  }
}

// ── Accordion wrapper (kept untouched) ─────────────────────────────────────

type AccordionProps = {
  title: string;
  id?: string;
  description?: string;
  defaultOpen?: boolean;
  accentColor?: "emerald" | "violet" | "amber" | "stone";
  children: React.ReactNode;
};

function Accordion({ title, id, description, defaultOpen = false, accentColor = "stone", children }: AccordionProps) {
  const [open, setOpen] = useState(defaultOpen);
  const accent = {
    emerald: "bg-emerald-50 text-emerald-700 border-emerald-200",
    violet: "bg-violet-50 text-violet-700 border-violet-200",
    amber: "bg-amber-50 text-amber-700 border-amber-200",
    stone: "bg-stone-50 text-stone-700 border-stone-200",
  }[accentColor];
  const borderColor = open ? "border-stone-300" : "border-stone-200";

  return (
    <div id={id} className={`rounded-xl border ${borderColor} bg-white shadow-sm overflow-hidden transition-all duration-200`}>
      <button type="button"
        onClick={() => setOpen(!open)}
        className="w-full flex items-center justify-between px-5 py-4 hover:bg-stone-50 transition-colors"
        aria-expanded={open}
       aria-label=")}">
        <div className="flex items-center gap-3">
          <span className="text-sm font-semibold text-stone-900">{title}</span>
          {description && (
            <span className="text-xs text-stone-500 hidden sm:block">{description}</span>
          )}
        </div>
        <div className="flex items-center gap-3">
          <span className={`text-xs font-medium px-2 py-1 rounded-md ${accent}`}>
            {open ? "Open" : "Closed"}
          </span>
          <svg
            className={`w-4 h-4 text-stone-400 transition-transform duration-200 ${open ? "rotate-180" : ""}`}
            fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}
          >
            <path strokeLinecap="round" strokeLinejoin="round" d="M19.5 8.25l-7.5 7.5-7.5-7.5" />
          </svg>
        </div>
      </button>
      <div className={`transition-all duration-200 ${open ? "block" : "hidden"}`}>
        <div className="px-5 pb-5 pt-2">{children}</div>
      </div>
    </div>
  );
}

// ──────────────────────────────────────────────────────────────────────────
// Main component
// ──────────────────────────────────────────────────────────────────────────

type Props = {
  brandId: string;
  workersOnly?: boolean;
  tasksOnly?: boolean;
};

export default function SettingsSections({ brandId, workersOnly, tasksOnly }: Props) {
  const [state, dispatch] = useReducer(reducer, initialState);

  // Refs for values that don't need to trigger re-renders
  const overtimeMultiplierRef = useRef(1.5);
  const overtimeNotificationsRef = useRef(true);
  const dailyAlertThresholdRef = useRef(80);
  const weeklyAlertThresholdRef = useRef(80);
  const sendEndOfPeriodSummaryRef = useRef(true);
  const brandNameRef = useRef("Farm");

  // Sync the non-rendered ref values when fresh settings arrive. The
  // form-state portion of the reducer is hydrated atomically by the
  // SET_LOADED_SETTINGS action above, so there's no stale-frame window
  // for fields the user sees — these refs only hold values used at
  // save time and don't need to drive a re-render.
  useEffect(() => {
    if (state.loadedSettings) {
      overtimeMultiplierRef.current = state.loadedSettings.overtime_multiplier;
      overtimeNotificationsRef.current = state.loadedSettings.overtime_notifications;
      dailyAlertThresholdRef.current = Math.round((state.loadedSettings.daily_alert_threshold ?? 0.80) * 100);
      weeklyAlertThresholdRef.current = Math.round((state.loadedSettings.weekly_alert_threshold ?? 0.80) * 100);
      sendEndOfPeriodSummaryRef.current = state.loadedSettings.send_end_of_period_summary ?? true;
      brandNameRef.current = state.loadedSettings.brand_name ?? "Farm";
    }
  }, [state.loadedSettings]);

  const load = useCallback(async () => {
    dispatch({ type: "SET_LOADING", value: true });
    const [w, t, s] = await Promise.all([
      getTimeTrackingWorkers(brandId),
      getTimeTrackingTasks(brandId, false),
      getTimeTrackingSettings(brandId),
    ]);
    dispatch({ type: "SET_WORKERS", value: w });
    dispatch({ type: "SET_TASKS", value: t });
    dispatch({ type: "SET_LOADED_SETTINGS", value: s });
    dispatch({ type: "SET_LOADING", value: false });
  }, [brandId]);

  useEffect(() => {
    void load();
  }, [load]);

  const handleSaveNotifications = async () => {
    dispatch({ type: "SET_SETTINGS_SAVING", value: true });
    dispatch({ type: "SET_SETTINGS_ERROR", value: null });
    dispatch({ type: "SET_SETTINGS_SAVED", value: false });
    const result = await updateTimeTrackingSettings(brandId, {
      pay_period_start_day: state.payPeriodStartDay,
      pay_period_length_days: state.payPeriodLength,
      daily_overtime_threshold: state.dailyOvertimeThreshold,
      weekly_overtime_threshold: state.weeklyOvertimeThreshold,
      overtime_multiplier: overtimeMultiplierRef.current,
      overtime_notifications: overtimeNotificationsRef.current,
      notification_emails: state.notificationEmails,
      notification_sms_numbers: state.notificationSmsNumbers,
      enable_daily_alerts: state.enableDailyAlerts,
      enable_weekly_alerts: state.enableWeeklyAlerts,
      daily_alert_threshold: dailyAlertThresholdRef.current / 100,
      weekly_alert_threshold: weeklyAlertThresholdRef.current / 100,
      send_end_of_period_summary: sendEndOfPeriodSummaryRef.current,
      brand_name: brandNameRef.current,
    });
    dispatch({ type: "SET_SETTINGS_SAVING", value: false });
    if (!result.success) {
      dispatch({ type: "SET_SETTINGS_ERROR", value: result.error ?? "Failed to save" });
      return;
    }
    dispatch({ type: "SET_SETTINGS_SAVED", value: true });
    setTimeout(() => dispatch({ type: "SET_SETTINGS_SAVED", value: false }), 3000);
    load();
  };

  const handleSaveWorker = async () => {
    if (!state.workerName.trim()) {
      dispatch({ type: "SET_WORKER_ERROR", value: "Name is required" });
      return;
    }
    dispatch({ type: "SET_SUBMITTING", value: true });
    dispatch({ type: "SET_WORKER_ERROR", value: null });
    if (state.editingWorker) {
      const result = await updateTimeWorker(
        state.editingWorker.id,
        state.workerName.trim(),
        state.workerRole,
        state.workerLang,
        state.workerActive
      );
      if (!result.success) {
        dispatch({ type: "SET_WORKER_ERROR", value: result.error ?? "Failed" });
        dispatch({ type: "SET_SUBMITTING", value: false });
        return;
      }
    } else {
      const result = await createTimeWorker(
        brandId,
        state.workerName.trim(),
        state.workerRole,
        state.workerLang
      );
      if (!result.success) {
        dispatch({ type: "SET_WORKER_ERROR", value: result.error ?? "Failed" });
        dispatch({ type: "SET_SUBMITTING", value: false });
        return;
      }
    }
    dispatch({ type: "SET_SUBMITTING", value: false });
    dispatch({ type: "CLOSE_WORKER_MODAL" });
    load();
  };

  const handleResetPin = async (workerId: string) => {
    const result = await resetTimeWorkerPin(workerId);
    if (result.success && result.pin) {
      dispatch({ type: "SET_RESET_PIN_RESULT", value: result.pin });
    } else {
      dispatch({ type: "SET_WORKER_ERROR", value: result.error ?? "Failed to reset PIN" });
    }
  };

  const handleDeleteWorker = async (workerId: string) => {
    if (!confirm("Delete this worker? This cannot be undone.")) return;
    const result = await deleteTimeWorker(workerId);
    if (!result.success) {
      dispatch({ type: "SET_WORKER_ERROR", value: result.error ?? "Failed" });
      return;
    }
    load();
  };

  const handleSaveTask = async () => {
    if (!state.taskName.trim()) {
      dispatch({ type: "SET_TASK_ERROR", value: "Name is required" });
      return;
    }
    dispatch({ type: "SET_SUBMITTING", value: true });
    dispatch({ type: "SET_TASK_ERROR", value: null });
    if (state.editingTask) {
      const result = await updateTimeTask(
        state.editingTask.id,
        state.taskName.trim(),
        state.taskNameEs,
        state.taskUnit,
        state.taskActive,
        state.taskSortOrder
      );
      if (!result.success) {
        dispatch({ type: "SET_TASK_ERROR", value: result.error ?? "Failed" });
        dispatch({ type: "SET_SUBMITTING", value: false });
        return;
      }
    } else {
      const result = await createTimeTask(
        brandId,
        state.taskName.trim(),
        state.taskNameEs || null,
        state.taskUnit,
        state.taskSortOrder
      );
      if (!result.success) {
        dispatch({ type: "SET_TASK_ERROR", value: result.error ?? "Failed" });
        dispatch({ type: "SET_SUBMITTING", value: false });
        return;
      }
    }
    dispatch({ type: "SET_SUBMITTING", value: false });
    dispatch({ type: "CLOSE_TASK_MODAL" });
    load();
  };

  const handleDeleteTask = async (taskId: string) => {
    if (!confirm("Delete this task?")) return;
    const result = await deleteTimeTask(taskId);
    if (!result.success) {
      dispatch({ type: "SET_TASK_ERROR", value: result.error ?? "Failed" });
      return;
    }
    load();
  };

  if (state.loading) {
    return <LoadingState />;
  }

  return (
    <div className="space-y-4">
      {!workersOnly && !tasksOnly && (
        <GeneralSettingsAccordion
          payPeriodStartDay={state.payPeriodStartDay}
          payPeriodLength={state.payPeriodLength}
          dailyOvertimeThreshold={state.dailyOvertimeThreshold}
          weeklyOvertimeThreshold={state.weeklyOvertimeThreshold}
          enableDailyAlerts={state.enableDailyAlerts}
          enableWeeklyAlerts={state.enableWeeklyAlerts}
          notificationEmails={state.notificationEmails}
          notificationSmsNumbers={state.notificationSmsNumbers}
          newEmail={state.newEmail}
          newSms={state.newSms}
          settingsSaving={state.settingsSaving}
          settingsSaved={state.settingsSaved}
          settingsError={state.settingsError}
          onSetPayPeriodStartDay={(v) => dispatch({ type: "SET_PAY_PERIOD_START_DAY", value: v })}
          onSetPayPeriodLength={(v) => dispatch({ type: "SET_PAY_PERIOD_LENGTH", value: v })}
          onSetDailyOvertimeThreshold={(v) => dispatch({ type: "SET_DAILY_OVERTIME_THRESHOLD", value: v })}
          onSetWeeklyOvertimeThreshold={(v) => dispatch({ type: "SET_WEEKLY_OVERTIME_THRESHOLD", value: v })}
          onSetEnableDailyAlerts={(v) => dispatch({ type: "SET_ENABLE_DAILY_ALERTS", value: v })}
          onSetEnableWeeklyAlerts={(v) => dispatch({ type: "SET_ENABLE_WEEKLY_ALERTS", value: v })}
          onSetNewEmail={(v) => dispatch({ type: "SET_NEW_EMAIL", value: v })}
          onSetNewSms={(v) => dispatch({ type: "SET_NEW_SMS", value: v })}
          onAddEmail={() => dispatch({ type: "ADD_EMAIL", value: state.newEmail.trim() })}
          onRemoveEmail={(e) => dispatch({ type: "REMOVE_EMAIL", value: e })}
          onAddSms={() =>
            dispatch({ type: "ADD_SMS", value: state.newSms.replace(/[^0-9+]/g, "") })
          }
          onRemoveSms={(n) => dispatch({ type: "REMOVE_SMS", value: n })}
          onSave={handleSaveNotifications}
        />
      )}

      {(workersOnly || (!workersOnly && !tasksOnly)) && (
        <WorkersAccordion
          workers={state.workers}
          defaultOpen={workersOnly}
          onAdd={() => dispatch({ type: "OPEN_ADD_WORKER" })}
          onEdit={(w) => dispatch({ type: "OPEN_EDIT_WORKER", worker: w })}
          onResetPin={handleResetPin}
          onDelete={handleDeleteWorker}
        />
      )}

      {(tasksOnly || (!workersOnly && !tasksOnly)) && (
        <TasksAccordion
          tasks={state.tasks}
          defaultOpen={tasksOnly}
          onAdd={() => dispatch({ type: "OPEN_ADD_TASK" })}
          onEdit={(t) => dispatch({ type: "OPEN_EDIT_TASK", task: t })}
          onDelete={handleDeleteTask}
        />
      )}

      {state.showWorkerModal && (
        <WorkerModal
          editingWorker={state.editingWorker}
          workerName={state.workerName}
          workerRole={state.workerRole}
          workerLang={state.workerLang}
          workerActive={state.workerActive}
          resetPinResult={state.resetPinResult}
          workerError={state.workerError}
          submitting={state.submitting}
          onSetWorkerName={(v) => dispatch({ type: "SET_WORKER_NAME", value: v })}
          onSetWorkerRole={(v) => dispatch({ type: "SET_WORKER_ROLE", value: v })}
          onSetWorkerLang={(v) => dispatch({ type: "SET_WORKER_LANG", value: v })}
          onSetWorkerActive={(v) => dispatch({ type: "SET_WORKER_ACTIVE", value: v })}
          onResetPin={() => state.editingWorker && handleResetPin(state.editingWorker.id)}
          onClose={() => dispatch({ type: "CLOSE_WORKER_MODAL" })}
          onSave={handleSaveWorker}
        />
      )}

      {state.showTaskModal && (
        <TaskModal
          editingTask={state.editingTask}
          taskName={state.taskName}
          taskNameEs={state.taskNameEs}
          taskUnit={state.taskUnit}
          taskActive={state.taskActive}
          taskSortOrder={state.taskSortOrder}
          taskError={state.taskError}
          submitting={state.submitting}
          onSetTaskName={(v) => dispatch({ type: "SET_TASK_NAME", value: v })}
          onSetTaskNameEs={(v) => dispatch({ type: "SET_TASK_NAME_ES", value: v })}
          onSetTaskUnit={(v) => dispatch({ type: "SET_TASK_UNIT", value: v })}
          onSetTaskActive={(v) => dispatch({ type: "SET_TASK_ACTIVE", value: v })}
          onSetTaskSortOrder={(v) => dispatch({ type: "SET_TASK_SORT_ORDER", value: v })}
          onClose={() => dispatch({ type: "CLOSE_TASK_MODAL" })}
          onSave={handleSaveTask}
        />
      )}
    </div>
  );
}

// ── LoadingState subcomponent ──────────────────────────────────────────────

function LoadingState() {
  return (
    <div className="flex items-center justify-center py-20">
      <div className="flex items-center gap-3 text-stone-500 text-sm">
        <svg className="animate-spin w-4 h-4" fill="none" viewBox="0 0 24 24">
          <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
          <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z" />
        </svg>
        Loading settings...
      </div>
    </div>
  );
}

// ── GeneralSettingsAccordion subcomponent ──────────────────────────────────

function GeneralSettingsAccordion({
  payPeriodStartDay,
  payPeriodLength,
  dailyOvertimeThreshold,
  weeklyOvertimeThreshold,
  enableDailyAlerts,
  enableWeeklyAlerts,
  notificationEmails,
  notificationSmsNumbers,
  newEmail,
  newSms,
  settingsSaving,
  settingsSaved,
  settingsError,
  onSetPayPeriodStartDay,
  onSetPayPeriodLength,
  onSetDailyOvertimeThreshold,
  onSetWeeklyOvertimeThreshold,
  onSetEnableDailyAlerts,
  onSetEnableWeeklyAlerts,
  onSetNewEmail,
  onSetNewSms,
  onAddEmail,
  onRemoveEmail,
  onAddSms,
  onRemoveSms,
  onSave,
}: {
  payPeriodStartDay: number;
  payPeriodLength: number;
  dailyOvertimeThreshold: number;
  weeklyOvertimeThreshold: number;
  enableDailyAlerts: boolean;
  enableWeeklyAlerts: boolean;
  notificationEmails: string[];
  notificationSmsNumbers: string[];
  newEmail: string;
  newSms: string;
  settingsSaving: boolean;
  settingsSaved: boolean;
  settingsError: string | null;
  onSetPayPeriodStartDay: (v: number) => void;
  onSetPayPeriodLength: (v: number) => void;
  onSetDailyOvertimeThreshold: (v: number) => void;
  onSetWeeklyOvertimeThreshold: (v: number) => void;
  onSetEnableDailyAlerts: (v: boolean) => void;
  onSetEnableWeeklyAlerts: (v: boolean) => void;
  onSetNewEmail: (v: string) => void;
  onSetNewSms: (v: string) => void;
  onAddEmail: () => void;
  onRemoveEmail: (e: string) => void;
  onAddSms: () => void;
  onRemoveSms: (n: string) => void;
  onSave: () => void;
}) {
  return (
    <Accordion
      id="general"
      title="General Settings"
      description="Pay period, overtime, alerts"
      defaultOpen={true}
      accentColor="stone"
    >
      <div className="space-y-5">
        {/* Pay Period & Overtime */}
        <div className="bg-stone-50 border border-stone-200 rounded-xl p-5">
          <h3 className="text-sm font-semibold text-stone-800 mb-4">Pay Period & Overtime</h3>
          <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
            <div>
              <label htmlFor="fld-1-work-week-starts-on"  className="block text-xs font-semibold uppercase tracking-widest text-stone-500 mb-2">Work week starts on</label>
              <select id="fld-1-work-week-starts-on"  aria-label="Select" value={payPeriodStartDay} onChange={e => onSetPayPeriodStartDay(Number(e.target.value))}
                className="w-full px-4 py-3 rounded-xl border border-stone-200 bg-white text-stone-900 focus:outline-none focus:border-emerald-500 transition-colors">
                {DAYS.map((d, i) => <option key={d} value={i}>{d}</option>)}
              </select>
            </div>
            <div>
              <label className="block text-xs font-semibold uppercase tracking-widest text-stone-500 mb-2" htmlFor="fld-pay-period-length">Pay period length</label>
              <div className="flex items-center gap-3">
                <input id="fld-pay-period-length" aria-label="Number" type="number" min={1} max={31} value={payPeriodLength}
                  onChange={e => onSetPayPeriodLength(Number(e.target.value))}
                  className="flex-1 px-4 py-3 rounded-xl border border-stone-200 bg-white text-stone-900 focus:outline-none focus:border-emerald-500 transition-colors" />
                <span className="text-sm text-stone-500">days</span>
              </div>
            </div>
            <div>
              <label className="block text-xs font-semibold uppercase tracking-widest text-stone-500 mb-2" htmlFor="fld-daily-overtime-threshold">Daily overtime threshold</label>
              <div className="flex items-center gap-3">
                <input id="fld-daily-overtime-threshold" aria-label="Number" type="number" min={1} max={24} value={dailyOvertimeThreshold}
                  onChange={e => onSetDailyOvertimeThreshold(Number(e.target.value))}
                  className="flex-1 px-4 py-3 rounded-xl border border-stone-200 bg-white text-stone-900 focus:outline-none focus:border-emerald-500 transition-colors" />
                <span className="text-sm text-stone-500">hrs</span>
              </div>
            </div>
            <div>
              <label className="block text-xs font-semibold uppercase tracking-widest text-stone-500 mb-2" htmlFor="fld-weekly-overtime-threshold">Weekly overtime threshold</label>
              <div className="flex items-center gap-3">
                <input id="fld-weekly-overtime-threshold" aria-label="Number" type="number" min={1} max={80} value={weeklyOvertimeThreshold}
                  onChange={e => onSetWeeklyOvertimeThreshold(Number(e.target.value))}
                  className="flex-1 px-4 py-3 rounded-xl border border-stone-200 bg-white text-stone-900 focus:outline-none focus:border-emerald-500 transition-colors" />
                <span className="text-sm text-stone-500">hrs</span>
              </div>
            </div>
          </div>
        </div>

        {/* Colorado notice */}
        <div className="bg-amber-50 border border-amber-200 rounded-xl p-4">
          <div className="flex items-start gap-3">
            <svg className="h-5 w-5 text-amber-600 shrink-0 mt-0.5" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
              <path strokeLinecap="round" strokeLinejoin="round" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z" />
            </svg>
            <div>
              <p className="text-sm font-semibold text-amber-800">Colorado Overtime Law</p>
              <p className="text-xs text-amber-700 mt-1">Colorado requires daily overtime (1.5×) after 12 hours in a workday, or weekly overtime after 40 hours in a workweek.</p>
            </div>
          </div>
        </div>

        {/* Alert Settings */}
        <div className="bg-stone-50 border border-stone-200 rounded-xl p-5">
          <h3 className="text-sm font-semibold text-stone-800 mb-4">Alert Settings</h3>
          <div className="space-y-4">
            <div className="flex items-center justify-between p-4 rounded-xl bg-white border border-[var(--admin-border)]">
              <div>
                <p className="text-sm text-[var(--admin-text-primary)] font-medium">Daily overtime alerts</p>
                <p className="text-xs text-[var(--admin-text-muted)]">Notify when worker hits daily limit</p>
              </div>
              <AdminToggle
                checked={enableDailyAlerts}
                onChange={onSetEnableDailyAlerts}
              />
            </div>
            <div className="flex items-center justify-between p-4 rounded-xl bg-white border border-[var(--admin-border)]">
              <div>
                <p className="text-sm text-[var(--admin-text-primary)] font-medium">Weekly overtime alerts</p>
                <p className="text-xs text-[var(--admin-text-muted)]">Notify when worker hits weekly limit</p>
              </div>
              <AdminToggle
                checked={enableWeeklyAlerts}
                onChange={onSetEnableWeeklyAlerts}
              />
            </div>
          </div>
        </div>

        {/* Notification Recipients */}
        <div className="bg-stone-50 border border-stone-200 rounded-xl p-5">
          <h3 className="text-sm font-semibold text-stone-800 mb-4">Notification Recipients</h3>
          <div className="space-y-4">
            <div>
              <label className="block text-xs font-semibold uppercase tracking-widest text-stone-500 mb-2" htmlFor="fld-email-addresses">Email addresses</label>
              <div className="flex gap-2">
                <input id="fld-email-addresses" aria-label="Manager@farm.com" value={newEmail}
                  onChange={e => onSetNewEmail(e.target.value)}
                  onKeyDown={e => e.key === "Enter" && (onAddEmail(), e.preventDefault())}
                  className="flex-1 px-4 py-3 rounded-xl border border-stone-200 bg-white text-stone-900 placeholder:text-stone-400 focus:outline-none focus:border-emerald-500"
                  placeholder="manager@farm.com" />
                <button type="button" onClick={onAddEmail} className="px-5 py-3 rounded-xl bg-emerald-600 hover:bg-emerald-500 text-white font-semibold text-sm" aria-label="Add">Add</button>
              </div>
              <div className="flex flex-wrap gap-2 mt-2">
                {notificationEmails.map(e => (
                  <span key={e} className="inline-flex items-center gap-1.5 bg-stone-100 text-stone-700 text-xs px-2.5 py-1 rounded-lg">
                    {e}
                    <button type="button" onClick={() => onRemoveEmail(e)} className="text-stone-400 hover:text-red-500 ml-1" aria-label="Close">
                      <svg className="h-3 w-3" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
                        <path strokeLinecap="round" strokeLinejoin="round" d="M6 18L18 6M6 6l12 12" />
                      </svg>
                    </button>
                  </span>
                ))}
              </div>
            </div>
            <div>
              <label className="block text-xs font-semibold uppercase tracking-widest text-stone-500 mb-2" htmlFor="fld-sms-numbers">SMS numbers</label>
              <div className="flex gap-2">
                <input id="fld-sms-numbers" aria-label="+1234567890" value={newSms}
                  onChange={e => onSetNewSms(e.target.value)}
                  onKeyDown={e => e.key === "Enter" && (onAddSms(), e.preventDefault())}
                  className="flex-1 px-4 py-3 rounded-xl border border-stone-200 bg-white text-stone-900 placeholder:text-stone-400 focus:outline-none focus:border-emerald-500"
                  placeholder="+1234567890" />
                <button type="button" onClick={onAddSms} className="px-5 py-3 rounded-xl bg-emerald-600 hover:bg-emerald-500 text-white font-semibold text-sm" aria-label="Add">Add</button>
              </div>
              <div className="flex flex-wrap gap-2 mt-2">
                {notificationSmsNumbers.map(n => (
                  <span key={n} className="inline-flex items-center gap-1.5 bg-stone-100 text-stone-700 text-xs px-2.5 py-1 rounded-lg">
                    {n}
                    <button type="button" onClick={() => onRemoveSms(n)} className="text-stone-400 hover:text-red-500 ml-1" aria-label="Close">
                      <svg className="h-3 w-3" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
                        <path strokeLinecap="round" strokeLinejoin="round" d="M6 18L18 6M6 6l12 12" />
                      </svg>
                    </button>
                  </span>
                ))}
              </div>
            </div>
          </div>
        </div>

        {settingsError && (
          <div className="rounded-xl border border-[var(--admin-danger)]/30 bg-[var(--admin-danger)]/10 px-4 py-3 text-sm text-[var(--admin-danger)] flex items-center gap-3">
            <svg className="w-5 h-5 shrink-0" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
              <path strokeLinecap="round" strokeLinejoin="round" d="M12 9v3.75m-9.303 3.376c-.866 1.5.217 3.374 1.948 3.374h14.71c1.73 0 2.813-1.874 1.948-3.374L13.949 3.378c-.866-1.5-3.032-1.5-3.898 0L2.697 16.126zM12 15.75h.007v.008H12v-.008z" />
            </svg>
            {settingsError}
          </div>
        )}
        {settingsSaved && (
          <div className="rounded-xl border border-[var(--admin-success)]/30 bg-[var(--admin-success)]/10 px-4 py-3 text-sm text-[var(--admin-success)] flex items-center gap-3">
            <svg className="w-5 h-5 shrink-0" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
              <path strokeLinecap="round" strokeLinejoin="round" d="M9 12.75L11.25 15 15 9.75M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
            </svg>
            Settings saved successfully!
          </div>
        )}
        <div className="flex items-center gap-3">
          <AdminButton
            variant="primary"
            size="md"
            onClick={onSave}
            disabled={settingsSaving}
          >
            {settingsSaving ? (
              <span className="flex items-center gap-2">
                <span className="h-4 w-4 rounded-full border-2 border-current border-t-transparent animate-spin" />
                Saving...
              </span>
            ) : (
              <>
                <svg className="w-4 h-4 mr-1" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
                  <path strokeLinecap="round" strokeLinejoin="round" d="M4.5 12.75l6 6 9-13.5" />
                </svg>
                Save Settings
              </>
            )}
          </AdminButton>
        </div>
      </div>
    </Accordion>
  );
}

// ── WorkersAccordion subcomponent ──────────────────────────────────────────

function WorkersAccordion({
  workers,
  defaultOpen,
  onAdd,
  onEdit,
  onResetPin,
  onDelete,
}: {
  workers: TimeWorker[];
  defaultOpen?: boolean;
  onAdd: () => void;
  onEdit: (w: TimeWorker) => void;
  onResetPin: (id: string) => void;
  onDelete: (id: string) => void;
}) {
  return (
    <Accordion
      id="workers"
      title="Workers & PINs"
      description={`${workers.length} worker${workers.length !== 1 ? "s" : ""}`}
      defaultOpen={defaultOpen}
      accentColor="emerald"
    >
      <div>
        <div className="flex items-center justify-between mb-4">
          <p className="text-xs text-stone-500">Manage time tracking workers and PIN codes.</p>
          <button type="button" onClick={onAdd}
            className="text-xs bg-emerald-600 hover:bg-emerald-500 text-white px-3 py-1.5 rounded-lg font-semibold transition-all" aria-label="+ Add Worker">+ Add Worker</button>
        </div>
        <div className="bg-white border border-stone-200 rounded-xl overflow-hidden">
          <table className="w-full text-sm">
            <thead>
              <tr className="text-xs text-stone-500 uppercase tracking-widest border-b border-stone-100">
                <th className="text-left px-4 py-3 font-medium">Name</th>
                <th className="text-left px-4 py-3 font-medium">Role</th>
                <th className="text-left px-4 py-3 font-medium hidden sm:table-cell">Lang</th>
                <th className="text-left px-4 py-3 font-medium">Status</th>
                <th className="text-left px-4 py-3 font-medium hidden md:table-cell">Last Used</th>
                <th className="text-right px-4 py-3 font-medium">Actions</th>
              </tr>
            </thead>
            <tbody>
              {workers.length === 0 ? (
                <tr><td colSpan={6} className="px-4 py-10 text-center text-stone-400 text-sm">No workers yet — add one to get started.</td></tr>
              ) : workers.map(w => (
                <tr key={w.id} className="border-t border-stone-100 hover:bg-stone-50 transition-colors">
                  <td className="px-4 py-3.5 text-stone-900 font-medium">{w.name}</td>
                  <td className="px-4 py-3.5 text-stone-500 capitalize text-xs">{w.role}</td>
                  <td className="px-4 py-3.5 text-stone-400 uppercase text-xs font-mono hidden sm:table-cell">{w.lang}</td>
                  <td className="px-4 py-3.5">
                    <span className={`inline-flex items-center rounded-full px-2 py-0.5 text-xs font-semibold ${w.active ? "bg-emerald-100 text-emerald-700" : "bg-stone-100 text-stone-500"}`}>
                      {w.active ? "Active" : "Inactive"}
                    </span>
                  </td>
                  <td className="px-4 py-3.5 text-stone-400 text-xs hidden md:table-cell">{w.last_used_at ? new Date(w.last_used_at).toLocaleDateString() : "—"}</td>
                  <td className="px-4 py-3.5 text-right">
                    <div className="flex items-center justify-end gap-1">
                      <button type="button" onClick={() => onEdit(w)} className="text-xs text-stone-500 hover:text-stone-900 px-2 py-1 rounded-lg hover:bg-stone-100 transition-all" aria-label="Edit">Edit</button>
                      <button type="button" onClick={() => onResetPin(w.id)} className="text-xs text-amber-600 hover:text-amber-800 px-2 py-1 rounded-lg hover:bg-amber-50 transition-all" aria-label="Reset PIN">Reset PIN</button>
                      <button type="button" onClick={() => onDelete(w.id)} className="text-xs text-red-500 hover:text-red-700 px-2 py-1 rounded-lg hover:bg-red-50 transition-all" aria-label="Delete">Delete</button>
                    </div>
                  </td>
                </tr>
              ))}
            </tbody>
          </table>
        </div>
      </div>
    </Accordion>
  );
}

// ── TasksAccordion subcomponent ────────────────────────────────────────────

function TasksAccordion({
  tasks,
  defaultOpen,
  onAdd,
  onEdit,
  onDelete,
}: {
  tasks: TimeTask[];
  defaultOpen?: boolean;
  onAdd: () => void;
  onEdit: (t: TimeTask) => void;
  onDelete: (id: string) => void;
}) {
  return (
    <Accordion
      id="tasks"
      title="Tasks"
      description={`${tasks.length} task${tasks.length !== 1 ? "s" : ""}`}
      defaultOpen={defaultOpen}
      accentColor="amber"
    >
      <div>
        <div className="flex items-center justify-between mb-4">
          <p className="text-xs text-stone-500">Define tasks workers can clock into.</p>
          <button type="button" onClick={onAdd}
            className="text-xs bg-amber-500 hover:bg-amber-600 text-white px-3 py-1.5 rounded-lg font-semibold transition-all" aria-label="+ Add Task">+ Add Task</button>
        </div>
        <div className="bg-white border border-stone-200 rounded-xl overflow-hidden">
          <table className="w-full text-sm">
            <thead>
              <tr className="text-xs text-stone-500 uppercase tracking-widest border-b border-stone-100">
                <th className="text-left px-4 py-3 font-medium">Name (EN)</th>
                <th className="text-left px-4 py-3 font-medium hidden sm:table-cell">Name (ES)</th>
                <th className="text-left px-4 py-3 font-medium">Unit</th>
                <th className="text-left px-4 py-3 font-medium hidden md:table-cell">Sort</th>
                <th className="text-left px-4 py-3 font-medium">Status</th>
                <th className="text-right px-4 py-3 font-medium">Actions</th>
              </tr>
            </thead>
            <tbody>
              {tasks.length === 0 ? (
                <tr><td colSpan={6} className="px-4 py-10 text-center text-stone-400 text-sm">No tasks yet — add one to get started.</td></tr>
              ) : tasks.map(t => (
                <tr key={t.id} className="border-t border-stone-100 hover:bg-stone-50 transition-colors">
                  <td className="px-4 py-3.5 text-stone-900 font-medium">{t.name}</td>
                  <td className="px-4 py-3.5 text-stone-500 text-xs hidden sm:table-cell">{t.name_es ?? "—"}</td>
                  <td className="px-4 py-3.5 text-stone-400 text-xs font-mono">{t.unit}</td>
                  <td className="px-4 py-3.5 text-stone-400 text-xs hidden md:table-cell">{t.sort_order}</td>
                  <td className="px-4 py-3.5">
                    <span className={`inline-flex items-center rounded-full px-2 py-0.5 text-xs font-semibold ${t.active ? "bg-emerald-100 text-emerald-700" : "bg-stone-100 text-stone-500"}`}>
                      {t.active ? "Active" : "Inactive"}
                    </span>
                  </td>
                  <td className="px-4 py-3.5 text-right">
                    <div className="flex items-center justify-end gap-1">
                      <button type="button" onClick={() => onEdit(t)} className="text-xs text-stone-500 hover:text-stone-900 px-2 py-1 rounded-lg hover:bg-stone-100 transition-all" aria-label="Edit">Edit</button>
                      <button type="button" onClick={() => onDelete(t.id)} className="text-xs text-red-500 hover:text-red-700 px-2 py-1 rounded-lg hover:bg-red-50 transition-all" aria-label="Delete">Delete</button>
                    </div>
                  </td>
                </tr>
              ))}
            </tbody>
          </table>
        </div>
      </div>
    </Accordion>
  );
}

// ── WorkerModal subcomponent ───────────────────────────────────────────────

function WorkerModal({
  editingWorker,
  workerName,
  workerRole,
  workerLang,
  workerActive,
  resetPinResult,
  workerError,
  submitting,
  onSetWorkerName,
  onSetWorkerRole,
  onSetWorkerLang,
  onSetWorkerActive,
  onResetPin,
  onClose,
  onSave,
}: {
  editingWorker: TimeWorker | null;
  workerName: string;
  workerRole: string;
  workerLang: string;
  workerActive: boolean;
  resetPinResult: string | null;
  workerError: string | null;
  submitting: boolean;
  onSetWorkerName: (v: string) => void;
  onSetWorkerRole: (v: string) => void;
  onSetWorkerLang: (v: string) => void;
  onSetWorkerActive: (v: boolean) => void;
  onResetPin: () => void;
  onClose: () => void;
  onSave: () => void;
}) {
  return (
    <div className="fixed inset-0 z-50 flex items-center justify-center p-4 bg-black/40 backdrop-blur-sm">
      <div className="bg-white border border-stone-200 rounded-2xl w-full max-w-md shadow-xl">
        <div className="px-6 py-4 border-b border-stone-100 flex items-center justify-between">
          <h3 className="text-lg font-bold text-stone-900">{editingWorker ? "Edit Worker" : "Add Worker"}</h3>
          <button type="button" onClick={onClose} className="text-stone-400 hover:text-stone-600" aria-label="Close">
            <svg className="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
              <path strokeLinecap="round" strokeLinejoin="round" d="M6 18L18 6M6 6l12 12" />
            </svg>
          </button>
        </div>
        <div className="p-6 space-y-4">
          {workerError && <div className="bg-red-50 border border-red-200 rounded-xl py-3 px-4 text-red-700 text-sm">{workerError}</div>}
          {resetPinResult && (
            <div className="bg-emerald-50 border border-emerald-200 rounded-xl py-3 px-4">
              <p className="text-emerald-700 text-sm font-semibold mb-1">New PIN:</p>
              <p className="text-2xl font-mono font-bold text-stone-900">{resetPinResult}</p>
              <p className="text-stone-500 text-xs mt-1">Show this to the worker — it will not be shown again.</p>
            </div>
          )}
          <div>
            <label htmlFor="fld-2-name"  className="block text-xs font-semibold uppercase tracking-widest text-stone-500 mb-1.5">Name *</label>
            <input id="fld-2-name"  aria-label="Worker Name" value={workerName} onChange={e => onSetWorkerName(e.target.value)}
              className="w-full px-4 py-3 rounded-xl border border-stone-200 bg-white text-stone-900 placeholder:text-stone-400 focus:outline-none focus:border-emerald-500 transition-colors"
              placeholder="Worker name" />
          </div>
          <div className="grid grid-cols-2 gap-3">
            <div>
              <label htmlFor="fld-3-role"  className="block text-xs font-semibold uppercase tracking-widest text-stone-500 mb-1.5">Role</label>
              <select id="fld-3-role"  aria-label="Select" value={workerRole} onChange={e => onSetWorkerRole(e.target.value)}
                className="w-full px-4 py-3 rounded-xl border border-stone-200 bg-white text-stone-900 focus:outline-none focus:border-emerald-500 transition-colors">
                <option value="worker">Worker</option>
                <option value="time_admin">Time Admin</option>
              </select>
            </div>
            <div>
              <label htmlFor="fld-4-lang"  className="block text-xs font-semibold uppercase tracking-widest text-stone-500 mb-1.5">Lang</label>
              <select id="fld-4-lang"  aria-label="Select" value={workerLang} onChange={e => onSetWorkerLang(e.target.value)}
                className="w-full px-4 py-3 rounded-xl border border-stone-200 bg-white text-stone-900 focus:outline-none focus:border-emerald-500 transition-colors">
                <option value="en">English</option>
                <option value="es">Español</option>
              </select>
            </div>
          </div>
          <div className="flex items-center gap-3">
            <input aria-label="WorkerActive" type="checkbox" id="workerActive" checked={workerActive} onChange={e => onSetWorkerActive(e.target.checked)}
              className="w-4 h-4 rounded border-stone-300 bg-white text-emerald-600" />
            <label htmlFor="workerActive" className="text-sm text-stone-700">Active</label>
          </div>
          {editingWorker && (
            <div className="pt-2 border-t border-stone-100">
              <button type="button" onClick={onResetPin} className="text-xs text-amber-600 hover:text-amber-800 font-semibold underline underline-offset-2" aria-label="Reset PIN for this worker">
                Reset PIN for this worker
              </button>
            </div>
          )}
          <div className="flex gap-3 pt-2">
            <button type="button" onClick={onClose}
              className="flex-1 py-3 rounded-xl font-semibold text-sm text-stone-500 hover:text-stone-700 border border-stone-200 hover:border-stone-300 transition-all" aria-label="Cancel">
              Cancel
            </button>
            <button type="button" onClick={onSave} disabled={submitting}
              className="flex-1 py-3 rounded-xl font-bold text-sm bg-emerald-600 hover:bg-emerald-500 disabled:opacity-40 text-white transition-all">
              {submitting ? "..." : editingWorker ? "Save" : "Add Worker"}
            </button>
          </div>
        </div>
      </div>
    </div>
  );
}

// ── TaskModal subcomponent ─────────────────────────────────────────────────

function TaskModal({
  editingTask,
  taskName,
  taskNameEs,
  taskUnit,
  taskActive,
  taskSortOrder,
  taskError,
  submitting,
  onSetTaskName,
  onSetTaskNameEs,
  onSetTaskUnit,
  onSetTaskActive,
  onSetTaskSortOrder,
  onClose,
  onSave,
}: {
  editingTask: TimeTask | null;
  taskName: string;
  taskNameEs: string;
  taskUnit: string;
  taskActive: boolean;
  taskSortOrder: number;
  taskError: string | null;
  submitting: boolean;
  onSetTaskName: (v: string) => void;
  onSetTaskNameEs: (v: string) => void;
  onSetTaskUnit: (v: string) => void;
  onSetTaskActive: (v: boolean) => void;
  onSetTaskSortOrder: (v: number) => void;
  onClose: () => void;
  onSave: () => void;
}) {
  return (
    <div className="fixed inset-0 z-50 flex items-center justify-center p-4 bg-black/40 backdrop-blur-sm">
      <div className="bg-white border border-stone-200 rounded-2xl w-full max-w-md shadow-xl">
        <div className="px-6 py-4 border-b border-stone-100 flex items-center justify-between">
          <h3 className="text-lg font-bold text-stone-900">{editingTask ? "Edit Task" : "Add Task"}</h3>
          <button type="button" onClick={onClose} className="text-stone-400 hover:text-stone-600" aria-label="Close">
            <svg className="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
              <path strokeLinecap="round" strokeLinejoin="round" d="M6 18L18 6M6 6l12 12" />
            </svg>
          </button>
        </div>
        <div className="p-6 space-y-4">
          {taskError && <div className="bg-red-50 border border-red-200 rounded-xl py-3 px-4 text-red-700 text-sm">{taskError}</div>}
          <div>
            <label htmlFor="fld-5-name-en"  className="block text-xs font-semibold uppercase tracking-widest text-stone-500 mb-1.5">Name (EN) *</label>
            <input id="fld-5-name-en"  aria-label=". Harvesting" value={taskName} onChange={e => onSetTaskName(e.target.value)}
              className="w-full px-4 py-3 rounded-xl border border-stone-200 bg-white text-stone-900 placeholder:text-stone-400 focus:outline-none focus:border-emerald-500 transition-colors"
              placeholder="e.g. Harvesting" />
          </div>
          <div>
            <label htmlFor="fld-6-name-es"  className="block text-xs font-semibold uppercase tracking-widest text-stone-500 mb-1.5">Name (ES)</label>
            <input id="fld-6-name-es"  aria-label=". Cosecha" value={taskNameEs} onChange={e => onSetTaskNameEs(e.target.value)}
              className="w-full px-4 py-3 rounded-xl border border-stone-200 bg-white text-stone-900 placeholder:text-stone-400 focus:outline-none focus:border-emerald-500 transition-colors"
              placeholder="e.g. Cosecha" />
          </div>
          <div className="grid grid-cols-2 gap-3">
            <div>
              <label htmlFor="fld-7-unit"  className="block text-xs font-semibold uppercase tracking-widest text-stone-500 mb-1.5">Unit</label>
              <select id="fld-7-unit"  aria-label="Select" value={taskUnit} onChange={e => onSetTaskUnit(e.target.value)}
                className="w-full px-4 py-3 rounded-xl border border-stone-200 bg-white text-stone-900 focus:outline-none focus:border-emerald-500 transition-colors">
                <option value="hours">Hours</option>
                <option value="pieces">Pieces</option>
                <option value="units">Units</option>
              </select>
            </div>
            <div>
              <label htmlFor="fld-8-sort-order"  className="block text-xs font-semibold uppercase tracking-widest text-stone-500 mb-1.5">Sort Order</label>
              <input id="fld-8-sort-order"  aria-label="Number" type="number" value={taskSortOrder} onChange={e => onSetTaskSortOrder(parseInt(e.target.value) || 0)}
                className="w-full px-4 py-3 rounded-xl border border-stone-200 bg-white text-stone-900 focus:outline-none focus:border-emerald-500 transition-colors" />
            </div>
          </div>
          <div className="flex items-center gap-3">
            <input aria-label="TaskActive" type="checkbox" id="taskActive" checked={taskActive} onChange={e => onSetTaskActive(e.target.checked)}
              className="w-4 h-4 rounded border-stone-300 bg-white text-emerald-600" />
            <label htmlFor="taskActive" className="text-sm text-stone-700">Active</label>
          </div>
          <div className="flex gap-3 pt-2">
            <button type="button" onClick={onClose}
              className="flex-1 py-3 rounded-xl font-semibold text-sm text-stone-500 hover:text-stone-700 border border-stone-200 hover:border-stone-300 transition-all" aria-label="Cancel">
              Cancel
            </button>
            <button type="button" onClick={onSave} disabled={submitting}
              className="flex-1 py-3 rounded-xl font-bold text-sm bg-emerald-600 hover:bg-emerald-500 disabled:opacity-40 text-white transition-all">
              {submitting ? "..." : editingTask ? "Save" : "Add Task"}
            </button>
          </div>
        </div>
      </div>
    </div>
  );
}