Alert

TSX
"use client";

import {
  CircleAlertIcon,
  CircleCheckIcon,
  InfoIcon,
  TriangleAlertIcon,
} from "lucide-react";

import { Alert, AlertDescription, AlertTitle } from "@/components/ui/alert";

export default function Alert01() {
  return (
    <div className="grid w-full max-w-md gap-3">
      <Alert role="status" className="border-chart-2/30 bg-chart-2/5">
        <InfoIcon aria-hidden="true" className="text-chart-2!" />
        <AlertTitle>Scheduled maintenance on Sunday</AlertTitle>
        <AlertDescription>
          The dashboard will be read-only from 02:00 to 03:30 UTC.
        </AlertDescription>
      </Alert>
      <Alert role="status" className="border-success/30 bg-success/5">
        <CircleCheckIcon aria-hidden="true" className="text-success!" />
        <AlertTitle>Domain verified</AlertTitle>
        <AlertDescription>
          acme.com is now sending mail with DKIM and SPF records.
        </AlertDescription>
      </Alert>
      <Alert className="border-warning/40 bg-warning/5">
        <TriangleAlertIcon aria-hidden="true" className="text-warning!" />
        <AlertTitle>You have used 92% of your storage</AlertTitle>
        <AlertDescription>
          Uploads will pause at 100 GB. Archive old projects or upgrade.
        </AlertDescription>
      </Alert>
      <Alert
        variant="destructive"
        className="border-destructive/30 bg-destructive/5"
      >
        <CircleAlertIcon aria-hidden="true" />
        <AlertTitle>Payment failed</AlertTitle>
        <AlertDescription>
          Your card ending in 4242 was declined. Update it to keep your plan.
        </AlertDescription>
      </Alert>
    </div>
  );
}

TSX
"use client";

import { CloudIcon } from "lucide-react";

import { Alert, AlertDescription, AlertTitle } from "@/components/ui/alert";

const densities = [
  {
    label: "Compact",
    className: "gap-0 px-2 py-1.5 text-xs",
    iconClassName: "size-3.5",
    titleClassName: "text-xs",
    descriptionClassName: "text-xs",
  },
  {
    label: "Default",
    className: "",
    iconClassName: "size-4",
    titleClassName: "",
    descriptionClassName: "",
  },
  {
    label: "Comfortable",
    className: "gap-1 px-4 py-3.5 has-[>svg]:gap-x-3",
    iconClassName: "size-5",
    titleClassName: "text-base",
    descriptionClassName: "",
  },
];

export default function Alert02() {
  return (
    <div className="grid w-full max-w-md gap-5">
      {densities.map((density) => (
        <div key={density.label} className="grid gap-1.5">
          <span className="text-xs font-medium text-muted-foreground">
            {density.label}
          </span>
          <Alert role="status" className={density.className}>
            <CloudIcon aria-hidden="true" className={density.iconClassName} />
            <AlertTitle className={density.titleClassName}>
              Sync paused on this device
            </AlertTitle>
            <AlertDescription className={density.descriptionClassName}>
              Changes are saved locally and upload once you are back online.
            </AlertDescription>
          </Alert>
        </div>
      ))}
    </div>
  );
}

TSX
"use client";

import { ShieldAlertIcon } from "lucide-react";

import { Alert, AlertDescription, AlertTitle } from "@/components/ui/alert";

const emphasis = [
  {
    label: "Filled",
    className: "border-primary bg-primary text-primary-foreground",
    descriptionClassName: "text-primary-foreground/80",
  },
  {
    label: "Subtle",
    className: "border-transparent bg-muted",
    descriptionClassName: "",
  },
  {
    label: "Outline",
    className: "bg-transparent",
    descriptionClassName: "",
  },
  {
    label: "Ghost",
    className: "border-transparent bg-transparent px-0",
    descriptionClassName: "",
  },
];

export default function Alert03() {
  return (
    <div className="grid w-full max-w-md gap-5">
      {emphasis.map((item) => (
        <div key={item.label} className="grid gap-1.5">
          <span className="text-xs font-medium text-muted-foreground">
            {item.label}
          </span>
          <Alert className={item.className}>
            <ShieldAlertIcon aria-hidden="true" />
            <AlertTitle>Two-factor authentication is off</AlertTitle>
            <AlertDescription className={item.descriptionClassName}>
              Protect your workspace with an authenticator app or security key.
            </AlertDescription>
          </Alert>
        </div>
      ))}
    </div>
  );
}

TSX
"use client";

import * as React from "react";
import { CloudOffIcon, WifiOffIcon } from "lucide-react";

import { Alert, AlertDescription, AlertTitle } from "@/components/ui/alert";
import { Button } from "@/components/ui/button";
import { Spinner } from "@/components/ui/spinner";

type Mode = "offline" | "retrying" | "local";

export default function Alert04() {
  const [mode, setMode] = React.useState<Mode>("offline");
  const [attempts, setAttempts] = React.useState(0);

  React.useEffect(() => {
    if (mode !== "retrying") return;
    // The server stays unreachable so the offline state can be replayed.
    const timer = setTimeout(() => setMode("offline"), 1200);
    return () => clearTimeout(timer);
  }, [mode]);

  if (mode === "local") {
    return (
      <Alert
        role="status"
        className="w-full max-w-sm grid-cols-[auto_1fr_auto] items-center gap-x-2"
      >
        <CloudOffIcon aria-hidden="true" className="row-span-1! translate-y-0!" />
        <AlertTitle className="col-start-2">Working offline</AlertTitle>
        <Button
          size="xs"
          variant="outline"
          className="col-start-3 row-start-1"
          onClick={() => setMode("retrying")}
        >
          Reconnect
        </Button>
      </Alert>
    );
  }

  const retrying = mode === "retrying";

  return (
    <Alert className="w-full max-w-sm justify-items-center gap-1 px-6 py-8 text-center shadow-sm">
      <div className="mb-3 flex size-11 items-center justify-center rounded-full bg-muted">
        <WifiOffIcon aria-hidden="true" className="size-5 text-foreground" />
      </div>
      <AlertTitle className="text-base">You are offline</AlertTitle>
      <AlertDescription className="max-w-64" aria-live="polite">
        {retrying
          ? "Trying to reach the server…"
          : attempts > 0
            ? "Still no connection. Your draft is safe and will sync when the connection returns."
            : "We could not reach the server. Your draft is safe and will sync when the connection returns."}
      </AlertDescription>
      <div className="mt-4 flex w-full flex-col gap-2 sm:flex-row sm:justify-center">
        <Button
          size="sm"
          disabled={retrying}
          onClick={() => {
            setAttempts((count) => count + 1);
            setMode("retrying");
          }}
        >
          {retrying ? <Spinner data-icon="inline-start" aria-hidden="true" /> : null}
          {retrying ? "Retrying" : "Try again"}
        </Button>
        <Button
          size="sm"
          variant="ghost"
          disabled={retrying}
          onClick={() => setMode("local")}
        >
          Work offline
        </Button>
      </div>
    </Alert>
  );
}

TSX
"use client";

import * as React from "react";
import { MegaphoneIcon, RotateCcwIcon, XIcon } from "lucide-react";

import {
  Alert,
  AlertAction,
  AlertDescription,
  AlertTitle,
} from "@/components/ui/alert";
import { Button } from "@/components/ui/button";

export default function Alert05() {
  const [open, setOpen] = React.useState(true);

  return (
    <div className="grid w-full max-w-md gap-3">
      {open ? (
        <Alert role="status">
          <MegaphoneIcon aria-hidden="true" />
          <AlertTitle>Workflows now run in parallel</AlertTitle>
          <AlertDescription>
            Independent steps start at the same time, cutting average run time
            by 40%. <a href="#changelog">Read the changelog</a>
          </AlertDescription>
          <AlertAction>
            <Button
              variant="ghost"
              size="icon-xs"
              aria-label="Dismiss announcement"
              onClick={() => setOpen(false)}
            >
              <XIcon aria-hidden="true" />
            </Button>
          </AlertAction>
        </Alert>
      ) : (
        <div className="flex items-center justify-between gap-3 rounded-lg border border-dashed px-2.5 py-2 text-sm text-muted-foreground">
          <span>Announcement dismissed.</span>
          <Button variant="outline" size="xs" onClick={() => setOpen(true)}>
            <RotateCcwIcon aria-hidden="true" data-icon="inline-start" />
            Show again
          </Button>
        </div>
      )}
    </div>
  );
}

TSX
"use client";

import { Alert, AlertDescription, AlertTitle } from "@/components/ui/alert";
import {
  Avatar,
  AvatarFallback,
  AvatarImage,
} from "@/components/ui/avatar";
import { Button } from "@/components/ui/button";

export default function Alert06() {
  return (
    <Alert
      role="status"
      className="w-full max-w-md grid-cols-[auto_1fr] gap-x-3 px-3 py-3"
    >
      <Avatar className="row-span-3">
        <AvatarImage src="/placeholder.svg" alt="" />
        <AvatarFallback>MR</AvatarFallback>
      </Avatar>
      <AlertTitle className="col-start-2">
        Maya Ruiz requested your review
      </AlertTitle>
      <AlertDescription className="col-start-2">
        Pull request 482 &ldquo;Migrate billing webhooks to queue
        workers&rdquo; is waiting on you. Due today.
      </AlertDescription>
      <div className="col-start-2 mt-2 flex flex-wrap gap-2">
        <Button size="xs">Start review</Button>
        <Button size="xs" variant="outline">
          Reassign
        </Button>
      </div>
    </Alert>
  );
}

TSX
"use client";

import * as React from "react";
import { CircleAlertIcon, CircleCheckIcon } from "lucide-react";

import { Alert, AlertDescription, AlertTitle } from "@/components/ui/alert";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";

const fields = [
  {
    id: "alert-07-company",
    name: "company",
    label: "Company name",
    autoComplete: "organization",
    validate: (value: string) =>
      value.trim().length < 2 ? "Enter your company name" : null,
  },
  {
    id: "alert-07-vat",
    name: "vat",
    label: "VAT number",
    autoComplete: "off",
    validate: (value: string) =>
      /^[A-Z]{2}[0-9A-Z]{8,12}$/.test(value.trim().toUpperCase())
        ? null
        : "Enter a VAT number that starts with a country code, like DE123456789",
  },
  {
    id: "alert-07-email",
    name: "email",
    label: "Billing email",
    autoComplete: "email",
    validate: (value: string) =>
      /^\S+@\S+\.\S+$/.test(value.trim())
        ? null
        : "Enter an email address like finance@company.com",
  },
];

type Values = Record<string, string>;

function validateAll(values: Values) {
  return fields.flatMap((field) => {
    const message = field.validate(values[field.name] ?? "");
    return message ? [{ id: field.id, message }] : [];
  });
}

const initialValues: Values = {
  company: "Brightline Studio",
  vat: "123456",
  email: "finance@brightline",
};

export default function Alert07() {
  const summaryRef = React.useRef<HTMLDivElement>(null);
  const [values, setValues] = React.useState<Values>(initialValues);
  const [errors, setErrors] = React.useState<{ id: string; message: string }[]>(
    () => validateAll(initialValues),
  );
  const [saved, setSaved] = React.useState(false);

  function submit(event: React.FormEvent<HTMLFormElement>) {
    event.preventDefault();
    const next = validateAll(values);
    setErrors(next);
    setSaved(next.length === 0);
    if (next.length > 0) {
      requestAnimationFrame(() => summaryRef.current?.focus());
    }
  }

  function errorFor(id: string) {
    return errors.find((error) => error.id === id)?.message;
  }

  return (
    <form noValidate onSubmit={submit} className="grid w-full max-w-sm gap-4">
      <div className="grid gap-1">
        <h3 className="font-medium">Billing details</h3>
        <p className="text-sm text-muted-foreground">
          These appear on every invoice we send you.
        </p>
      </div>
      {errors.length > 0 && (
        <Alert
          ref={summaryRef}
          tabIndex={-1}
          variant="destructive"
          className="border-destructive/30 outline-none focus-visible:ring-3 focus-visible:ring-destructive/20"
        >
          <CircleAlertIcon aria-hidden="true" />
          <AlertTitle>
            Fix {errors.length} {errors.length === 1 ? "field" : "fields"} to
            save
          </AlertTitle>
          <AlertDescription>
            <ul className="mt-1 grid gap-1">
              {errors.map((error) => (
                <li key={error.id}>
                  <a
                    href={`#${error.id}`}
                    className="rounded-sm text-destructive outline-none focus-visible:ring-3 focus-visible:ring-destructive/30"
                    onClick={(event) => {
                      event.preventDefault();
                      document.getElementById(error.id)?.focus();
                    }}
                  >
                    {error.message}
                  </a>
                </li>
              ))}
            </ul>
          </AlertDescription>
        </Alert>
      )}
      {saved && (
        <Alert role="status">
          <CircleCheckIcon aria-hidden="true" className="text-success!" />
          <AlertTitle>Billing details saved</AlertTitle>
          <AlertDescription>
            Your next invoice will use these details.
          </AlertDescription>
        </Alert>
      )}
      {fields.map((field) => {
        const message = errorFor(field.id);
        return (
          <div key={field.id} className="grid gap-2">
            <Label htmlFor={field.id}>{field.label}</Label>
            <Input
              id={field.id}
              autoComplete={field.autoComplete}
              value={values[field.name]}
              aria-invalid={message ? true : undefined}
              aria-describedby={message ? `${field.id}-error` : undefined}
              onChange={(event) => {
                setSaved(false);
                setValues((current) => ({
                  ...current,
                  [field.name]: event.target.value,
                }));
              }}
            />
            {message && (
              <p id={`${field.id}-error`} className="text-xs text-destructive">
                {message}
              </p>
            )}
          </div>
        );
      })}
      <Button type="submit" className="w-full sm:w-auto sm:justify-self-end">
        Save details
      </Button>
    </form>
  );
}

TSX
"use client";

import * as React from "react";
import { cn } from "cn";
import { ChevronDownIcon, FileWarningIcon } from "lucide-react";

import { Alert, AlertDescription, AlertTitle } from "@/components/ui/alert";
import {
  Collapsible,
  CollapsibleContent,
  CollapsibleTrigger,
} from "@/components/ui/collapsible";

const issues = [
  { row: 14, field: "email", message: "“jordan@” is not a valid address" },
  { row: 37, field: "plan", message: "“Enterprize” does not match a plan" },
  { row: 52, field: "seats", message: "Must be a whole number, got 2.5" },
];

export default function Alert08() {
  const [open, setOpen] = React.useState(false);

  return (
    <Alert variant="destructive" className="w-full max-w-md">
      <FileWarningIcon aria-hidden="true" />
      <AlertTitle>3 of 120 rows were skipped</AlertTitle>
      <AlertDescription>
        <div>The rest of customers.csv imported successfully.</div>
        <Collapsible open={open} onOpenChange={setOpen}>
          <CollapsibleTrigger className="-mx-1 mt-1 inline-flex items-center gap-1 rounded-sm px-1 font-medium text-destructive outline-none hover:underline focus-visible:ring-3 focus-visible:ring-destructive/30">
            {open ? "Hide details" : "Show details"}
            <ChevronDownIcon
              aria-hidden="true"
              className={cn(
                "size-3.5 transition-transform duration-200",
                open && "rotate-180",
              )}
            />
          </CollapsibleTrigger>
          <CollapsibleContent>
            <ul className="mt-2 divide-y divide-destructive/15 rounded-md border border-destructive/20 text-xs">
              {issues.map((issue) => (
                <li key={issue.row} className="grid gap-0.5 px-2.5 py-2">
                  <span className="font-medium tabular-nums">
                    Row {issue.row} &middot;{" "}
                    <code className="font-mono">{issue.field}</code>
                  </span>
                  <span>{issue.message}</span>
                </li>
              ))}
            </ul>
          </CollapsibleContent>
        </Collapsible>
      </AlertDescription>
    </Alert>
  );
}

TSX
"use client";

import * as React from "react";
import { CircleCheckIcon, DatabaseBackupIcon } from "lucide-react";

import {
  Alert,
  AlertAction,
  AlertDescription,
  AlertTitle,
} from "@/components/ui/alert";
import { Button } from "@/components/ui/button";
import { Progress } from "@/components/ui/progress";
import { Spinner } from "@/components/ui/spinner";

type Phase = "idle" | "running" | "done";

export default function Alert09() {
  const [phase, setPhase] = React.useState<Phase>("idle");
  const [value, setValue] = React.useState(0);

  React.useEffect(() => {
    if (phase !== "running") return;
    const id = window.setInterval(() => {
      setValue((current) => Math.min(current + 8, 100));
    }, 250);
    return () => window.clearInterval(id);
  }, [phase]);

  React.useEffect(() => {
    if (phase === "running" && value >= 100) setPhase("done");
  }, [phase, value]);

  function start() {
    setValue(0);
    setPhase("running");
  }

  return (
    <div className="w-full max-w-md">
      {phase === "idle" && (
        <Alert role="status">
          <DatabaseBackupIcon aria-hidden="true" />
          <AlertTitle>Restore point from 08:00 is ready</AlertTitle>
          <AlertDescription>
            Restoring replaces 1,284 records changed since this morning.
          </AlertDescription>
          <AlertAction>
            <Button size="xs" onClick={start}>
              Restore
            </Button>
          </AlertAction>
        </Alert>
      )}
      {phase === "running" && (
        <Alert role="status" aria-busy="true">
          <Spinner aria-hidden="true" />
          <AlertTitle>Restoring your data</AlertTitle>
          <AlertDescription className="grid gap-2">
            <span className="tabular-nums">
              {Math.round((value / 100) * 1284).toLocaleString("en-US")} of
              1,284 records
            </span>
            <Progress value={value} aria-label="Restore progress" />
          </AlertDescription>
        </Alert>
      )}
      {phase === "done" && (
        <Alert role="status" className="border-success/30 bg-success/5">
          <CircleCheckIcon aria-hidden="true" className="text-success!" />
          <AlertTitle>Restore complete</AlertTitle>
          <AlertDescription>
            All 1,284 records match the 08:00 restore point.
          </AlertDescription>
          <AlertAction>
            <Button size="xs" variant="outline" onClick={() => setPhase("idle")}>
              Done
            </Button>
          </AlertAction>
        </Alert>
      )}
    </div>
  );
}

TSX
"use client";

import * as React from "react";
import {
  ChevronLeftIcon,
  ChevronRightIcon,
  KeyRoundIcon,
  ServerCrashIcon,
  UsersIcon,
} from "lucide-react";

import {
  Alert,
  AlertAction,
  AlertDescription,
  AlertTitle,
} from "@/components/ui/alert";
import { Button } from "@/components/ui/button";

const notices = [
  {
    id: "incident",
    icon: ServerCrashIcon,
    title: "Elevated API latency in eu-west",
    description: "Requests are slower than usual. Engineers are investigating.",
  },
  {
    id: "keys",
    icon: KeyRoundIcon,
    title: "2 API keys expire in 7 days",
    description: "Rotate the production and staging keys before September 30.",
  },
  {
    id: "seats",
    icon: UsersIcon,
    title: "All 25 seats are in use",
    description: "New invites will wait for approval until you add seats.",
  },
];

export default function Alert10() {
  const [index, setIndex] = React.useState(0);
  const notice = notices[index];
  const Icon = notice.icon;
  const remaining = notices.length - 1 - index;

  return (
    <section
      aria-label="Account notices"
      className="relative w-full max-w-md pb-3"
    >
      {remaining > 0 && (
        <div
          aria-hidden="true"
          className="absolute inset-x-3 bottom-1.5 h-4 rounded-lg border bg-card"
        />
      )}
      {remaining > 1 && (
        <div
          aria-hidden="true"
          className="absolute inset-x-6 bottom-0 h-4 rounded-lg border bg-card"
        />
      )}
      <Alert
        key={notice.id}
        role="status"
        className="relative z-10 pr-24! shadow-sm"
      >
        <Icon aria-hidden="true" />
        <AlertTitle>{notice.title}</AlertTitle>
        <AlertDescription>{notice.description}</AlertDescription>
        <AlertAction className="flex items-center gap-0.5">
          <Button
            variant="ghost"
            size="icon-xs"
            aria-label="Previous notice"
            disabled={index === 0}
            onClick={() => setIndex((i) => i - 1)}
          >
            <ChevronLeftIcon aria-hidden="true" />
          </Button>
          <span className="min-w-8 text-center text-xs text-muted-foreground tabular-nums">
            {index + 1}/{notices.length}
          </span>
          <Button
            variant="ghost"
            size="icon-xs"
            aria-label="Next notice"
            disabled={index === notices.length - 1}
            onClick={() => setIndex((i) => i + 1)}
          >
            <ChevronRightIcon aria-hidden="true" />
          </Button>
        </AlertAction>
      </Alert>
    </section>
  );
}

TSX
"use client";

import * as React from "react";
import { CreditCardIcon, RefreshCwIcon } from "lucide-react";

import {
  Alert,
  AlertAction,
  AlertDescription,
  AlertTitle,
} from "@/components/ui/alert";
import { Button } from "@/components/ui/button";
import {
  Card,
  CardContent,
  CardDescription,
  CardFooter,
  CardHeader,
  CardTitle,
} from "@/components/ui/card";

const plan = {
  name: "Team plan",
  price: "$96.00",
  cycle: "Billed monthly for 8 seats",
  card: "Visa ending in 4242",
  failedOn: "Sep 22",
  retryOn: "Sep 29",
};

export default function Alert11() {
  const [retried, setRetried] = React.useState(false);

  return (
    <Card className="w-full max-w-md">
      <CardHeader>
        <CardTitle>{plan.name}</CardTitle>
        <CardDescription>{plan.cycle}</CardDescription>
      </CardHeader>
      <CardContent className="grid gap-4">
        {retried ? (
          <Alert aria-live="polite">
            <RefreshCwIcon aria-hidden="true" />
            <AlertTitle>Retry scheduled</AlertTitle>
            <AlertDescription>
              We will charge {plan.card} again within the next hour and email
              the receipt to billing@northwind.io.
            </AlertDescription>
            <AlertAction>
              <Button size="xs" variant="ghost" onClick={() => setRetried(false)}>
                Cancel
              </Button>
            </AlertAction>
          </Alert>
        ) : (
          <Alert variant="destructive">
            <CreditCardIcon aria-hidden="true" />
            <AlertTitle>Your {plan.failedOn} payment was declined</AlertTitle>
            <AlertDescription>
              <p>
                The bank declined the {plan.price} charge to {plan.card}. Update
                your card before {plan.retryOn} to keep all 8 seats active.
              </p>
            </AlertDescription>
            <div className="col-start-2 mt-2 flex flex-wrap gap-2">
              <Button size="sm">Update payment method</Button>
              <Button size="sm" variant="outline" onClick={() => setRetried(true)}>
                Retry charge
              </Button>
            </div>
          </Alert>
        )}
        <dl className="grid grid-cols-2 gap-y-2 text-sm">
          <dt className="text-muted-foreground">Amount due</dt>
          <dd className="text-right font-medium tabular-nums">{plan.price}</dd>
          <dt className="text-muted-foreground">Next attempt</dt>
          <dd className="text-right tabular-nums">{plan.retryOn}</dd>
        </dl>
      </CardContent>
      <CardFooter className="border-t text-xs text-muted-foreground">
        Seats become read-only if the balance stays unpaid for 14 days.
      </CardFooter>
    </Card>
  );
}

TSX
"use client";

import * as React from "react";
import { CircleDotIcon } from "lucide-react";

import {
  Alert,
  AlertAction,
  AlertDescription,
  AlertTitle,
} from "@/components/ui/alert";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";

const saved = {
  name: "Daniel Okafor",
  email: "daniel@lumen.studio",
  title: "Product designer",
};

type Profile = typeof saved;

export default function Alert12() {
  const [committed, setCommitted] = React.useState<Profile>(saved);
  const [draft, setDraft] = React.useState<Profile>({
    ...saved,
    title: "Senior product designer",
  });

  const changed = (Object.keys(draft) as (keyof Profile)[]).filter(
    (key) => draft[key] !== committed[key],
  );

  const update =
    (key: keyof Profile) => (event: React.ChangeEvent<HTMLInputElement>) =>
      setDraft((current) => ({ ...current, [key]: event.target.value }));

  return (
    <form
      className="grid w-full max-w-md gap-4"
      onSubmit={(event) => {
        event.preventDefault();
        setCommitted(draft);
      }}
    >
      <div className="grid gap-1">
        <h3 className="font-medium">Profile</h3>
        <p className="text-sm text-muted-foreground">
          How teammates see you across the workspace.
        </p>
      </div>
      <div className="grid gap-2">
        <Label htmlFor="alert-12-name">Full name</Label>
        <Input id="alert-12-name" value={draft.name} onChange={update("name")} />
      </div>
      <div className="grid gap-2">
        <Label htmlFor="alert-12-email">Email</Label>
        <Input
          id="alert-12-email"
          type="email"
          value={draft.email}
          onChange={update("email")}
        />
      </div>
      <div className="grid gap-2">
        <Label htmlFor="alert-12-title">Job title</Label>
        <Input
          id="alert-12-title"
          value={draft.title}
          onChange={update("title")}
        />
      </div>
      <div aria-live="polite">
        {changed.length > 0 ? (
          <Alert className="bg-muted/60 has-data-[slot=alert-action]:pr-2.5 sm:has-data-[slot=alert-action]:pr-52">
            <CircleDotIcon aria-hidden="true" className="text-primary!" />
            <AlertTitle>
              {changed.length} unsaved {changed.length === 1 ? "change" : "changes"}
            </AlertTitle>
            <AlertDescription>
              Edited: {changed.join(", ")}.
            </AlertDescription>
            <AlertAction className="static col-start-2 mt-2 flex gap-2 sm:absolute sm:top-1/2 sm:mt-0 sm:-translate-y-1/2">
              <Button
                type="button"
                size="sm"
                variant="ghost"
                onClick={() => setDraft(committed)}
              >
                Discard
              </Button>
              <Button type="submit" size="sm">
                Save changes
              </Button>
            </AlertAction>
          </Alert>
        ) : (
          <p className="text-sm text-muted-foreground">All changes saved.</p>
        )}
      </div>
    </form>
  );
}

TSX
"use client";

import * as React from "react";
import { UsersRoundIcon } from "lucide-react";

import {
  Alert,
  AlertDescription,
  AlertTitle,
} from "@/components/ui/alert";
import { Avatar, AvatarFallback } from "@/components/ui/avatar";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";

const INCLUDED_SEATS = 5;

const initialMembers = [
  { name: "Ava Chen", email: "ava@orbitlabs.dev", role: "Owner" },
  { name: "Jonah Reyes", email: "jonah@orbitlabs.dev", role: "Admin" },
  { name: "Priya Nair", email: "priya@orbitlabs.dev", role: "Member" },
  { name: "Leo Martins", email: "leo@orbitlabs.dev", role: "Member" },
];

function initials(name: string) {
  return name
    .split(" ")
    .map((part) => part[0])
    .join("");
}

export default function Alert13() {
  const [members, setMembers] = React.useState([
    ...initialMembers,
    { name: "Sam Patel", email: "sam@orbitlabs.dev", role: "Invited" },
  ]);
  const [seatLimit, setSeatLimit] = React.useState(INCLUDED_SEATS);
  const [email, setEmail] = React.useState("");
  const [error, setError] = React.useState<string | null>(null);
  const full = members.length >= seatLimit;

  function invite(event: React.FormEvent<HTMLFormElement>) {
    event.preventDefault();
    const address = email.trim();
    if (!address || full) return;
    if (
      members.some(
        (member) => member.email.toLowerCase() === address.toLowerCase(),
      )
    ) {
      setError(`${address} is already on the team.`);
      return;
    }
    setError(null);
    setMembers((current) => [
      ...current,
      { name: address.split("@")[0], email: address, role: "Invited" },
    ]);
    setEmail("");
  }

  return (
    <section
      aria-labelledby="alert-13-heading"
      className="grid w-full max-w-md gap-4 rounded-xl border bg-card p-4"
    >
      <div className="flex items-baseline justify-between gap-2">
        <h3 id="alert-13-heading" className="font-medium">
          Team members
        </h3>
        <span className="text-sm text-muted-foreground tabular-nums">
          {members.length} of {seatLimit} seats
        </span>
      </div>
      <ul className="grid gap-3">
        {members.map((member) => (
          <li key={member.email} className="flex items-center gap-3">
            <Avatar size="sm">
              <AvatarFallback>{initials(member.name)}</AvatarFallback>
            </Avatar>
            <div className="min-w-0 flex-1">
              <p className="truncate text-sm font-medium">{member.name}</p>
              <p className="truncate text-xs text-muted-foreground">
                {member.email}
              </p>
            </div>
            <span className="text-xs text-muted-foreground">{member.role}</span>
          </li>
        ))}
      </ul>
      {full ? (
        <Alert aria-live="polite">
          <UsersRoundIcon aria-hidden="true" />
          <AlertTitle>All {seatLimit} seats are in use</AlertTitle>
          <AlertDescription>
            Remove a member or add a seat for $12 a month to invite
            more people.
          </AlertDescription>
          <div className="col-start-2 mt-2 flex flex-wrap gap-2">
            <Button size="sm" onClick={() => setSeatLimit((limit) => limit + 1)}>
              Add a seat
            </Button>
            <Button
              size="sm"
              variant="ghost"
              disabled={!members.some((member) => member.role === "Invited")}
              onClick={() =>
                setMembers((current) => {
                  const last = current
                    .map((member) => member.role)
                    .lastIndexOf("Invited");
                  return current.filter((_, index) => index !== last);
                })
              }
            >
              Remove last invite
            </Button>
          </div>
        </Alert>
      ) : (
        <form onSubmit={invite} className="grid gap-2">
          <Label htmlFor="alert-13-email">Invite by email</Label>
          <div className="flex gap-2">
            <Input
              id="alert-13-email"
              type="email"
              placeholder="name@orbitlabs.dev"
              value={email}
              onChange={(event) => {
                setEmail(event.target.value);
                setError(null);
              }}
              aria-invalid={error ? true : undefined}
              aria-describedby="alert-13-hint"
              required
            />
            <Button type="submit">Invite</Button>
          </div>
          <p
            id="alert-13-hint"
            aria-live="polite"
            className={
              error ? "text-xs text-destructive" : "text-xs text-muted-foreground"
            }
          >
            {error ??
              `${seatLimit - members.length} seat${
                seatLimit - members.length === 1 ? "" : "s"
              } left on your plan.`}
          </p>
        </form>
      )}
    </section>
  );
}

TSX
"use client";

import * as React from "react";
import { CheckIcon, CopyIcon, KeyRoundIcon, LockIcon } from "lucide-react";

import {
  Alert,
  AlertDescription,
  AlertTitle,
} from "@/components/ui/alert";
import { Button } from "@/components/ui/button";

const firstSecret = "ak_live_51Hx9QeLmT7vRk2aPz0cN8wYbF3uJd";

const alphabet =
  "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";

function rollSecret() {
  let body = "";
  for (let i = 0; i < 30; i++) {
    body += alphabet[Math.floor(Math.random() * alphabet.length)];
  }
  return `ak_live_${body}`;
}

export default function Alert14() {
  const [copied, setCopied] = React.useState(false);
  const [stored, setStored] = React.useState(false);
  const [secret, setSecret] = React.useState(firstSecret);
  const timeout = React.useRef<ReturnType<typeof setTimeout> | null>(null);

  React.useEffect(() => {
    return () => {
      if (timeout.current) clearTimeout(timeout.current);
    };
  }, []);

  async function copy() {
    try {
      await navigator.clipboard.writeText(secret);
    } catch {
      // Clipboard access can be blocked; the key stays selectable below.
    }
    setCopied(true);
    if (timeout.current) clearTimeout(timeout.current);
    timeout.current = setTimeout(() => setCopied(false), 2000);
  }

  return (
    <section
      aria-labelledby="alert-14-heading"
      className="grid w-full max-w-md gap-4 rounded-xl border bg-card p-4"
    >
      <div className="grid gap-1">
        <h3 id="alert-14-heading" className="font-medium">
          Production API key created
        </h3>
        <p className="text-sm text-muted-foreground">
          Name: checkout-service · Scope: payments:write
        </p>
      </div>
      {stored ? (
        <Alert role="status">
          <LockIcon aria-hidden="true" />
          <AlertTitle>Key hidden for good</AlertTitle>
          <AlertDescription>
            It now shows as{" "}
            <code className="font-mono text-xs whitespace-nowrap">
              ak_live_…{secret.slice(-4)}
            </code>
            . Roll a new key if you ever lose it.
          </AlertDescription>
        </Alert>
      ) : (
        <Alert className="bg-muted/50">
          <KeyRoundIcon aria-hidden="true" />
          <AlertTitle>Copy this key now</AlertTitle>
          <AlertDescription>
            For your security we only show it once. Store it in your secrets
            manager; if you lose it, roll a new key.
          </AlertDescription>
          <div className="col-start-2 mt-3 flex min-w-0 items-center gap-1 rounded-md border bg-background py-1 pr-1 pl-2.5">
            <code className="min-w-0 flex-1 truncate font-mono text-xs select-all">
              {secret}
            </code>
            <Button
              size="icon-sm"
              variant="ghost"
              onClick={copy}
              aria-label={copied ? "Copied" : "Copy API key"}
            >
              {copied ? <CheckIcon aria-hidden="true" /> : <CopyIcon aria-hidden="true" />}
            </Button>
          </div>
          <span className="sr-only" aria-live="polite">
            {copied ? "API key copied to clipboard" : ""}
          </span>
        </Alert>
      )}
      <div className="flex justify-end">
        {stored ? (
          <Button
            variant="outline"
            onClick={() => {
              setSecret(rollSecret());
              setStored(false);
            }}
          >
            Roll a new key
          </Button>
        ) : (
          <Button
            onClick={() => {
              setCopied(false);
              setStored(true);
            }}
          >
            I have saved my key
          </Button>
        )}
      </div>
    </section>
  );
}

TSX
"use client";

import * as React from "react";
import { CalendarCheckIcon, CalendarClockIcon, CheckIcon } from "lucide-react";

import {
  Alert,
  AlertDescription,
  AlertTitle,
} from "@/components/ui/alert";
import { Button } from "@/components/ui/button";
import { ToggleGroup, ToggleGroupItem } from "@/components/ui/toggle-group";

const requested = "2:00 PM";

const openSlots = ["3:30 PM", "4:00 PM", "4:30 PM"];

export default function Alert15() {
  const [time, setTime] = React.useState(requested);
  const [sent, setSent] = React.useState(false);
  const conflict = time === requested;

  return (
    <section
      aria-labelledby="alert-15-heading"
      className="grid w-full max-w-md gap-4 rounded-xl border bg-card p-4"
    >
      <div className="grid gap-1">
        <h3 id="alert-15-heading" className="font-medium">
          Quarterly roadmap sync
        </h3>
        <p className="text-sm text-muted-foreground">
          Tuesday, Oct 7 · 45 min · 6 guests
        </p>
      </div>
      <div aria-live="polite">
        {conflict ? (
          <Alert variant="destructive">
            <CalendarClockIcon aria-hidden="true" />
            <AlertTitle>3 guests are busy at {requested}</AlertTitle>
            <AlertDescription>
              Dana, Marcus, and Ines have “Design review” until 3:00&nbsp;PM. Pick a
              time when everyone is free.
            </AlertDescription>
          </Alert>
        ) : (
          <Alert>
            <CalendarCheckIcon aria-hidden="true" className="text-success!" />
            <AlertTitle>
              {sent ? `Invite sent for ${time}` : `Everyone is free at ${time}`}
            </AlertTitle>
            <AlertDescription>
              {sent
                ? "All 6 guests got an email. Pick another time to send an update."
                : "All 6 guests accepted similar slots this week."}
            </AlertDescription>
          </Alert>
        )}
      </div>
      <div className="grid gap-2">
        <p id="alert-15-slots" className="text-sm font-medium">
          Start time
        </p>
        <ToggleGroup
          aria-labelledby="alert-15-slots"
          variant="outline"
          size="sm"
          className="flex-wrap"
          value={[time]}
          onValueChange={(value) => {
            if (!value[0] || value[0] === time) return;
            setTime(value[0] as string);
            setSent(false);
          }}
        >
          {[requested, ...openSlots].map((slot) => (
            <ToggleGroupItem
              key={slot}
              value={slot}
              className="tabular-nums"
            >
              {slot}
              {slot === requested ? (
                <span className="sr-only"> (conflict)</span>
              ) : null}
            </ToggleGroupItem>
          ))}
        </ToggleGroup>
      </div>
      <Button disabled={conflict || sent} onClick={() => setSent(true)}>
        {sent ? (
          <>
            <CheckIcon aria-hidden="true" data-icon="inline-start" />
            Invite sent
          </>
        ) : (
          "Send invite"
        )}
      </Button>
    </section>
  );
}

TSX
"use client";

import * as React from "react";
import { CircleCheckIcon, GlobeIcon, TriangleAlertIcon } from "lucide-react";

import {
  Alert,
  AlertDescription,
  AlertTitle,
} from "@/components/ui/alert";
import { Button } from "@/components/ui/button";
import { Spinner } from "@/components/ui/spinner";

const records = [
  { type: "TXT", host: "_verify", value: "sevn-site-verification=8f3a2c91" },
  { type: "CNAME", host: "www", value: "edge.acme-hosting.net" },
];

type Status = "pending" | "checking" | "failed" | "verified";

export default function Alert16() {
  const [status, setStatus] = React.useState<Status>("pending");
  const [attempts, setAttempts] = React.useState(0);

  React.useEffect(() => {
    if (status !== "checking") return;
    // The first lookup misses so the failure path is visible; the second passes.
    const timer = setTimeout(
      () => setStatus(attempts > 1 ? "verified" : "failed"),
      1400,
    );
    return () => clearTimeout(timer);
  }, [status, attempts]);

  function check() {
    setAttempts((count) => count + 1);
    setStatus("checking");
  }

  return (
    <section
      aria-labelledby="alert-16-heading"
      className="grid w-full max-w-md gap-4 rounded-xl border bg-card p-4"
    >
      <div className="grid gap-1">
        <h3 id="alert-16-heading" className="font-medium">
          Connect harborcoffee.com
        </h3>
        <p className="text-sm text-muted-foreground">
          Add these records at your DNS provider, then check the connection.
        </p>
      </div>
      <div className="overflow-hidden rounded-lg border">
        <table className="w-full table-fixed text-left text-xs">
          <thead className="bg-muted/60 text-muted-foreground">
            <tr>
              <th scope="col" className="w-16 px-2.5 py-1.5 font-medium">
                Type
              </th>
              <th scope="col" className="w-20 px-2.5 py-1.5 font-medium">
                Host
              </th>
              <th scope="col" className="px-2.5 py-1.5 font-medium">
                Value
              </th>
            </tr>
          </thead>
          <tbody className="font-mono">
            {records.map((record) => (
              <tr key={record.type} className="border-t">
                <td className="px-2.5 py-2">{record.type}</td>
                <td className="px-2.5 py-2">{record.host}</td>
                <td className="px-2.5 py-2 break-all select-all" title={record.value}>
                  {record.value}
                </td>
              </tr>
            ))}
          </tbody>
        </table>
      </div>
      <div aria-live="polite">
        {status === "pending" && (
          <Alert>
            <GlobeIcon aria-hidden="true" />
            <AlertTitle>Waiting for DNS records</AlertTitle>
            <AlertDescription>
              Most providers publish changes within 10 minutes; some take up to
              48 hours.
            </AlertDescription>
          </Alert>
        )}
        {status === "checking" && (
          <Alert>
            <Spinner aria-hidden="true" role="presentation" />
            <AlertTitle>Looking up harborcoffee.com…</AlertTitle>
            <AlertDescription>Querying public resolvers.</AlertDescription>
          </Alert>
        )}
        {status === "failed" && (
          <Alert variant="destructive">
            <TriangleAlertIcon aria-hidden="true" />
            <AlertTitle>TXT record not found yet</AlertTitle>
            <AlertDescription>
              We found the CNAME but not _verify. Check the host name has no
              trailing domain, then try again.
            </AlertDescription>
          </Alert>
        )}
        {status === "verified" && (
          <Alert>
            <CircleCheckIcon aria-hidden="true" className="text-success!" />
            <AlertTitle>harborcoffee.com is connected</AlertTitle>
            <AlertDescription>
              HTTPS certificate issued. Your site is live on the new domain.
            </AlertDescription>
          </Alert>
        )}
      </div>
      <div className="flex justify-end gap-2">
        {status === "verified" ? (
          <Button variant="outline">
            Continue to site settings
          </Button>
        ) : (
          <Button onClick={check} disabled={status === "checking"}>
            {status === "failed" ? "Check again" : "Verify records"}
          </Button>
        )}
      </div>
    </section>
  );
}

TSX
"use client";

import * as React from "react";
import { ActivityIcon, BellRingIcon } from "lucide-react";

import {
  Alert,
  AlertDescription,
  AlertTitle,
} from "@/components/ui/alert";
import { Badge } from "@/components/ui/badge";
import { Label } from "@/components/ui/label";
import { Switch } from "@/components/ui/switch";

const services = [
  { name: "API", latency: "84 ms", status: "Operational" },
  { name: "Webhooks", latency: "2.4 s", status: "Degraded" },
  { name: "Dashboard", latency: "120 ms", status: "Operational" },
];

const updates = [
  {
    time: "14:52 UTC",
    stage: "Monitoring",
    body: "A fix is deployed. Queued webhooks are draining; backlog is at 12%.",
  },
  {
    time: "14:31 UTC",
    stage: "Identified",
    body: "A saturated queue worker in eu-west-1 is delaying deliveries.",
  },
  {
    time: "14:10 UTC",
    stage: "Investigating",
    body: "We are seeing delayed webhook deliveries for some accounts.",
  },
];

export default function Alert17() {
  const [subscribed, setSubscribed] = React.useState(false);

  return (
    <section
      aria-labelledby="alert-17-heading"
      className="grid w-full max-w-md gap-4 rounded-xl border bg-card p-4"
    >
      <div className="flex items-center justify-between gap-2">
        <h3 id="alert-17-heading" className="font-medium">
          System status
        </h3>
        <span className="text-xs text-muted-foreground">Updated 1 min ago</span>
      </div>
      <Alert className="border-warning/40 bg-warning/10">
        <ActivityIcon aria-hidden="true" className="text-warning!" />
        <AlertTitle>Webhook deliveries are delayed</AlertTitle>
        <AlertDescription className="text-foreground/80">
          Events are not lost; they arrive late while the queue recovers. API
          requests are unaffected.
        </AlertDescription>
        <ol className="col-start-2 mt-3 grid gap-3 border-l pl-3">
          {updates.map((update, index) => (
            <li key={update.time} className="grid gap-0.5 text-xs">
              <span className="flex flex-wrap items-center gap-x-2">
                <span
                  className={
                    index === 0 ? "font-medium text-foreground" : "font-medium"
                  }
                >
                  {update.stage}
                </span>
                <time className="text-muted-foreground tabular-nums">
                  {update.time}
                </time>
              </span>
              <span className="text-muted-foreground">{update.body}</span>
            </li>
          ))}
        </ol>
      </Alert>
      <ul className="divide-y rounded-lg border">
        {services.map((service) => (
          <li
            key={service.name}
            className="flex items-center gap-3 px-3 py-2 text-sm"
          >
            <span className="min-w-0 flex-1 truncate font-medium">{service.name}</span>
            <span className="shrink-0 text-muted-foreground tabular-nums">
              {service.latency}
            </span>
            <Badge variant={service.status === "Degraded" ? "outline" : "secondary"}>
              {service.status}
            </Badge>
          </li>
        ))}
      </ul>
      <div className="flex items-center justify-between gap-3">
        <Label htmlFor="alert-17-subscribe" className="flex items-center gap-2 font-normal">
          <BellRingIcon aria-hidden="true" className="size-4 text-muted-foreground" />
          Email me when this is resolved
        </Label>
        <Switch
          id="alert-17-subscribe"
          checked={subscribed}
          onCheckedChange={setSubscribed}
        />
      </div>
    </section>
  );
}