Separator

TSX
"use client";

import { Separator } from "@/components/ui/separator";

const sections = [
  {
    align: "start",
    label: "Profile",
    body: "Name, avatar, and the email address teammates see on shared projects.",
  },
  {
    align: "center",
    label: "Notifications",
    body: "Choose which activity sends a push alert and which waits for the daily digest.",
  },
  {
    align: "end",
    label: "Danger zone",
    body: "Transfer ownership of the workspace or delete it with all of its data.",
  },
] as const;

const textAlign = {
  start: "text-left",
  center: "text-center",
  end: "text-right",
};

export default function Separator01() {
  return (
    <div className="flex w-full max-w-md flex-col gap-6">
      {sections.map((section) => (
        <section
          key={section.label}
          aria-labelledby={`separator-01-${section.align}`}
          className="flex flex-col gap-2"
        >
          <div className="flex items-center gap-3">
            {section.align !== "start" && <Separator className="flex-1" />}
            <h3
              id={`separator-01-${section.align}`}
              className="shrink-0 text-xs font-medium tracking-wide text-muted-foreground uppercase"
            >
              {section.label}
            </h3>
            {section.align !== "end" && <Separator className="flex-1" />}
          </div>
          <p className={`text-sm text-balance ${textAlign[section.align]}`}>
            {section.body}
          </p>
        </section>
      ))}
    </div>
  );
}

TSX
"use client";

import { Separator } from "@/components/ui/separator";

const lines = [
  { label: "Team plan, 8 seats", amount: "$96.00" },
  { label: "Extra storage, 200 GB", amount: "$12.00" },
  { label: "Priority support", amount: "$25.00" },
];

const totals = [
  { label: "Subtotal", amount: "$133.00" },
  { label: "Annual discount", amount: "-$13.30" },
  { label: "Sales tax (8.25%)", amount: "$9.88" },
];

// Stroke variants built on the same primitive: the line is drawn with a
// border instead of the default background, so its style can change.
const dotted =
  "flex-1 self-end bg-transparent border-b-2 border-dotted border-border mb-1 data-[orientation=horizontal]:h-0 data-[orientation=horizontal]:w-auto";
const dashed =
  "bg-transparent border-t border-dashed border-border data-[orientation=horizontal]:h-0";
const double =
  "bg-transparent border-y border-foreground/70 data-[orientation=horizontal]:h-[3px]";

export default function Separator02() {
  return (
    <div className="w-full max-w-sm rounded-xl border bg-card p-5 text-card-foreground shadow-xs">
      <div className="flex items-baseline justify-between gap-4">
        <h3 className="font-medium">Invoice INV-2048</h3>
        <span className="text-xs text-muted-foreground">Sep 1, 2026</span>
      </div>
      <Separator className="my-4" />
      <ul className="flex flex-col gap-2.5 text-sm">
        {lines.map((line) => (
          <li key={line.label} className="flex items-baseline gap-2">
            <span className="min-w-0 truncate">{line.label}</span>
            <Separator className={dotted} />
            <span className="tabular-nums">{line.amount}</span>
          </li>
        ))}
      </ul>
      <Separator className={`my-4 ${dashed}`} />
      <dl className="flex flex-col gap-1.5 text-sm text-muted-foreground">
        {totals.map((row) => (
          <div key={row.label} className="flex justify-between gap-4">
            <dt>{row.label}</dt>
            <dd className="tabular-nums">{row.amount}</dd>
          </div>
        ))}
      </dl>
      <Separator className={`mt-4 mb-3 ${double}`} />
      <div className="flex items-baseline justify-between gap-4">
        <span className="font-medium">Amount due</span>
        <span className="text-lg font-semibold tabular-nums">$129.58</span>
      </div>
    </div>
  );
}

TSX
"use client";

import * as React from "react";

import { Separator } from "@/components/ui/separator";

const stats = [
  { label: "Weekly downloads", value: "184,302", change: "+12.4%" },
  { label: "Open issues", value: "37", change: "-8 this week" },
  { label: "Median response", value: "4h 12m", change: "Down from 6h" },
];

export default function Separator03() {
  return (
    <div className="@container w-full max-w-2xl">
      <div className="flex flex-col rounded-xl border bg-card text-card-foreground @lg:flex-row">
        {stats.map((stat, index) => (
          <React.Fragment key={stat.label}>
            {index > 0 && (
              <>
                {/* Stacked on narrow containers, side by side from @lg up. */}
                <Separator className="@lg:hidden" />
                <Separator
                  orientation="vertical"
                  className="hidden @lg:my-4 @lg:block"
                />
              </>
            )}
            <dl className="flex flex-1 flex-col gap-1 px-5 py-4">
              <dt className="text-sm text-muted-foreground">{stat.label}</dt>
              <dd className="text-2xl font-semibold tracking-tight tabular-nums">
                {stat.value}
              </dd>
              <dd className="text-xs text-muted-foreground">{stat.change}</dd>
            </dl>
          </React.Fragment>
        ))}
      </div>
    </div>
  );
}

TSX
"use client";

import * as React from "react";

import { Avatar, AvatarFallback } from "@/components/ui/avatar";
import { Separator } from "@/components/ui/separator";
import { ToggleGroup, ToggleGroupItem } from "@/components/ui/toggle-group";

type Inset = "full" | "inset" | "middle";

const insets: { value: Inset; label: string }[] = [
  { value: "full", label: "Full bleed" },
  { value: "inset", label: "Inset" },
  { value: "middle", label: "Middle" },
];

const members = [
  { name: "Maya Patel", role: "Engineering lead", initials: "MP" },
  { name: "Jonas Weber", role: "Product designer", initials: "JW" },
  { name: "Ava Thompson", role: "Support engineer", initials: "AT" },
  { name: "Leo Martins", role: "Data analyst", initials: "LM" },
];

// Each inset lines the separator up with a different edge of the row.
const insetClass: Record<Inset, string> = {
  full: "",
  // 16px row padding + 32px avatar + 12px gap = starts under the name.
  inset: "ml-15 data-[orientation=horizontal]:w-auto",
  middle: "mx-4 data-[orientation=horizontal]:w-auto",
};

export default function Separator04() {
  const [inset, setInset] = React.useState<Inset>("inset");

  return (
    <div className="flex w-full max-w-sm flex-col gap-3">
      <ToggleGroup
        aria-label="Separator inset"
        variant="outline"
        size="sm"
        spacing={0}
        value={[inset]}
        onValueChange={(next) => {
          // Keep one option selected at all times.
          if (next.length > 0) setInset(next[0] as Inset);
        }}
        className="w-full"
      >
        {insets.map((item) => (
          <ToggleGroupItem
            key={item.value}
            value={item.value}
            className="flex-1 aria-pressed:bg-accent aria-pressed:text-accent-foreground"
          >
            {item.label}
          </ToggleGroupItem>
        ))}
      </ToggleGroup>
      <ul
        aria-label="Workspace members"
        className="overflow-hidden rounded-xl border bg-card text-card-foreground"
      >
        {members.map((member, index) => (
          <li key={member.name}>
            {index > 0 && (
              <Separator
                className={`transition-[margin] duration-200 ease-out motion-reduce:transition-none ${insetClass[inset]}`}
              />
            )}
            <div className="flex items-center gap-3 px-4 py-3">
              <Avatar>
                <AvatarFallback>{member.initials}</AvatarFallback>
              </Avatar>
              <div className="flex min-w-0 flex-col">
                <span className="truncate text-sm font-medium">
                  {member.name}
                </span>
                <span className="truncate text-xs text-muted-foreground">
                  {member.role}
                </span>
              </div>
            </div>
          </li>
        ))}
      </ul>
    </div>
  );
}

TSX
"use client";

import {
  Bold,
  Italic,
  Link2,
  List,
  ListOrdered,
  Redo2,
  Underline,
  Undo2,
} from "lucide-react";
import * as React from "react";

import { Button } from "@/components/ui/button";
import { Separator } from "@/components/ui/separator";
import { Toggle } from "@/components/ui/toggle";

const marks = [
  { value: "bold", label: "Bold", icon: Bold },
  { value: "italic", label: "Italic", icon: Italic },
  { value: "underline", label: "Underline", icon: Underline },
];

const lists = [
  { value: "bullets", label: "Bulleted list", icon: List },
  { value: "numbers", label: "Numbered list", icon: ListOrdered },
];

export default function Separator05() {
  // Every formatting change is a history entry, so Undo and Redo walk it.
  const [history, setHistory] = React.useState({
    entries: [["bold"]] as string[][],
    index: 0,
  });
  const active = history.entries[history.index];
  const canUndo = history.index > 0;
  const canRedo = history.index < history.entries.length - 1;

  const toggle = (value: string, pressed: boolean) =>
    setHistory(({ entries, index }) => {
      const current = entries[index];
      const next = pressed
        ? [...current, value]
        : current.filter((item) => item !== value);
      return { entries: [...entries.slice(0, index + 1), next], index: index + 1 };
    });

  const step = (delta: number) =>
    setHistory(({ entries, index }) => ({
      entries,
      index: Math.min(Math.max(index + delta, 0), entries.length - 1),
    }));

  return (
    <div className="flex w-full max-w-md flex-col overflow-hidden rounded-xl border bg-card text-card-foreground">
      <fieldset
        aria-label="Formatting"
        className="m-0 flex h-11 min-w-0 items-center gap-0.5 border-0 px-1.5"
      >
        <Button
          variant="ghost"
          size="icon-sm"
          aria-label="Undo"
          disabled={!canUndo}
          onClick={() => step(-1)}
        >
          <Undo2 aria-hidden="true" />
        </Button>
        <Button
          variant="ghost"
          size="icon-sm"
          aria-label="Redo"
          disabled={!canRedo}
          onClick={() => step(1)}
        >
          <Redo2 aria-hidden="true" />
        </Button>
        {/* Inset vertical separators: shorter than the bar, centered. */}
        <Separator
          orientation="vertical"
          className="mx-1 h-5 data-[orientation=vertical]:self-center"
        />
        {marks.map((mark) => (
          <Toggle
            key={mark.value}
            size="sm"
            className="px-1.5"
            aria-label={mark.label}
            pressed={active.includes(mark.value)}
            onPressedChange={(pressed) => toggle(mark.value, pressed)}
          >
            <mark.icon aria-hidden="true" />
          </Toggle>
        ))}
        <Separator
          orientation="vertical"
          className="mx-1 h-5 data-[orientation=vertical]:self-center"
        />
        {lists.map((list) => (
          <Toggle
            key={list.value}
            size="sm"
            className="px-1.5"
            aria-label={list.label}
            pressed={active.includes(list.value)}
            onPressedChange={(pressed) => toggle(list.value, pressed)}
          >
            <list.icon aria-hidden="true" />
          </Toggle>
        ))}
        {/* Full-height separator: splits the bar into two regions. */}
        <Separator
          orientation="vertical"
          className="mx-1 ml-auto h-11 data-[orientation=vertical]:self-center"
        />
        <Button variant="ghost" size="icon-sm" aria-label="Insert link">
          <Link2 aria-hidden="true" />
        </Button>
      </fieldset>
      <Separator />
      <p
        className={[
          "px-4 py-3 text-sm leading-relaxed text-muted-foreground",
          active.includes("bold") && "font-semibold",
          active.includes("italic") && "italic",
          active.includes("underline") && "underline underline-offset-4",
        ]
          .filter(Boolean)
          .join(" ")}
      >
        Release notes for 3.2 ship Thursday. Call out the new export presets and
        the faster sync on large workspaces.
      </p>
    </div>
  );
}

TSX
"use client";

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

import { Avatar, AvatarFallback } from "@/components/ui/avatar";
import { Button } from "@/components/ui/button";
import { Separator } from "@/components/ui/separator";

const hidden = [
  {
    author: "Jonas Weber",
    initials: "JW",
    time: "Mon 10:12",
    body: "The export sheet still shows the old CSV presets.",
  },
  {
    author: "Maya Patel",
    initials: "MP",
    time: "Mon 11:40",
    body: "Confirmed. It reads from the cached schema, not the new one.",
  },
  {
    author: "Ava Thompson",
    initials: "AT",
    time: "Tue 09:05",
    body: "Two customers reported the same thing through support.",
  },
];

const first = {
  author: "Leo Martins",
  initials: "LM",
  time: "Mon 09:48",
  body: "Opening this to track the export preset regression from 3.1.",
};

const latest = {
  author: "Maya Patel",
  initials: "MP",
  time: "Today 14:20",
  body: "Fix is merged and the cache now invalidates on deploy. Closing.",
};

type Reply = typeof first;

function Comment({
  reply,
  ref,
}: {
  reply: Reply;
  ref?: React.Ref<HTMLLIElement>;
}) {
  return (
    <li
      ref={ref}
      tabIndex={ref ? -1 : undefined}
      className="flex gap-3 rounded-md py-3 outline-none focus-visible:ring-3 focus-visible:ring-ring/50"
    >
      <Avatar size="sm" className="mt-0.5">
        <AvatarFallback>{reply.initials}</AvatarFallback>
      </Avatar>
      <div className="flex min-w-0 flex-col gap-0.5">
        <p className="text-sm">
          <span className="font-medium">{reply.author}</span>{" "}
          <span className="text-xs text-muted-foreground">{reply.time}</span>
        </p>
        <p className="text-sm text-pretty text-muted-foreground">
          {reply.body}
        </p>
      </div>
    </li>
  );
}

export default function Separator06() {
  const [expanded, setExpanded] = React.useState(false);
  const listId = React.useId();
  const revealedRef = React.useRef<HTMLLIElement>(null);
  const expandRef = React.useRef<HTMLButtonElement>(null);
  const toggledRef = React.useRef(false);

  // Each trigger unmounts when pressed, so hand focus to what replaces it:
  // the first revealed reply on expand, the expand button on collapse.
  React.useEffect(() => {
    if (!toggledRef.current) return;
    if (expanded) revealedRef.current?.focus();
    else expandRef.current?.focus();
  }, [expanded]);

  const toggle = (next: boolean) => {
    toggledRef.current = true;
    setExpanded(next);
  };

  return (
    <div className="w-full max-w-md rounded-xl border bg-card px-4 py-1 text-card-foreground">
      <ul id={listId} aria-label="Issue comments">
        <Comment reply={first} />
        {expanded ? (
          hidden.map((reply, index) => (
            <Comment
              key={reply.time}
              reply={reply}
              ref={index === 0 ? revealedRef : undefined}
            />
          ))
        ) : (
          <li className="flex items-center gap-2 py-1">
            <Separator className="flex-1" />
            <Button
              ref={expandRef}
              variant="outline"
              size="xs"
              aria-expanded={expanded}
              aria-controls={listId}
              onClick={() => toggle(true)}
              className="rounded-full"
            >
              <ChevronsUpDown aria-hidden="true" />
              Show {hidden.length} earlier replies
            </Button>
            <Separator className="flex-1" />
          </li>
        )}
        <Comment reply={latest} />
      </ul>
      {expanded && (
        <>
          <Separator />
          <div className="flex justify-center py-2">
            <Button
              variant="ghost"
              size="xs"
              aria-expanded={expanded}
              aria-controls={listId}
              onClick={() => toggle(false)}
            >
              Collapse replies
            </Button>
          </div>
        </>
      )}
    </div>
  );
}

TSX
"use client";

import { Check, RotateCcw } from "lucide-react";
import * as React from "react";

import { Button } from "@/components/ui/button";
import { Separator } from "@/components/ui/separator";
import { Spinner } from "@/components/ui/spinner";

const stages = [
  { name: "Build", detail: "Compiled 412 modules in 38s" },
  { name: "Run tests", detail: "1,284 passed across 96 suites" },
  { name: "Deploy to staging", detail: "staging.acme.dev, region eu-west-1" },
  {
    name: "Promote to production",
    detail: "Requires release manager approval",
  },
];

type Status = "complete" | "running" | "pending";

const statusLabel: Record<Status, string> = {
  complete: "Complete",
  running: "In progress",
  pending: "Pending",
};

export default function Separator07() {
  // Index of the stage that is currently running; stages.length = all done.
  const [current, setCurrent] = React.useState(1);
  const done = current >= stages.length;

  return (
    <div className="flex w-full max-w-sm flex-col gap-4 rounded-xl border bg-card p-5 text-card-foreground">
      <div className="flex items-center justify-between gap-3">
        <h3 className="font-medium">Release v3.2.0</h3>
        <span className="text-xs text-muted-foreground" aria-live="polite">
          {done ? "Shipped" : `Stage ${current + 1} of ${stages.length}`}
        </span>
      </div>
      <ol aria-label="Pipeline stages">
        {stages.map((stage, index) => {
          const status: Status =
            index < current
              ? "complete"
              : index === current
                ? "running"
                : "pending";
          const isLast = index === stages.length - 1;

          return (
            <li key={stage.name} className="flex gap-3">
              <div className="flex flex-col items-center">
                <span
                  className={
                    status === "complete"
                      ? "flex size-6 items-center justify-center rounded-full bg-primary text-primary-foreground"
                      : status === "running"
                        ? "flex size-6 items-center justify-center rounded-full border border-primary text-primary"
                        : "flex size-6 items-center justify-center rounded-full border text-xs text-muted-foreground"
                  }
                >
                  {status === "complete" && (
                    <Check aria-hidden="true" className="size-3.5" />
                  )}
                  {status === "running" && (
                    <Spinner aria-hidden="true" className="size-3.5" />
                  )}
                  {status === "pending" && (
                    <span aria-hidden="true">{index + 1}</span>
                  )}
                </span>
                {!isLast && (
                  // The connector fills from the top once the stage above completes.
                  <Separator
                    orientation="vertical"
                    className={`relative my-1 min-h-6 flex-1 overflow-hidden rounded-full data-[orientation=vertical]:w-0.5 after:absolute after:inset-0 after:origin-top after:bg-primary after:transition-transform after:duration-500 after:ease-out motion-reduce:after:transition-none ${
                      status === "complete"
                        ? "after:scale-y-100"
                        : "after:scale-y-0"
                    }`}
                  />
                )}
              </div>
              <div className={isLast ? "pt-0.5" : "pt-0.5 pb-5"}>
                <p
                  className={
                    status === "pending"
                      ? "text-sm font-medium text-muted-foreground"
                      : "text-sm font-medium"
                  }
                >
                  {stage.name}
                  <span className="sr-only">, {statusLabel[status]}</span>
                </p>
                <p className="text-xs text-muted-foreground">{stage.detail}</p>
              </div>
            </li>
          );
        })}
      </ol>
      <div className="flex gap-2">
        <Button
          className="flex-1"
          disabled={done}
          onClick={() => setCurrent((value) => value + 1)}
        >
          {current === stages.length - 1 ? "Approve release" : "Complete stage"}
        </Button>
        <Button
          variant="outline"
          size="icon"
          aria-label="Restart pipeline"
          onClick={() => setCurrent(0)}
        >
          <RotateCcw aria-hidden="true" />
        </Button>
      </div>
    </div>
  );
}

TSX
"use client";

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

import { Checkbox } from "@/components/ui/checkbox";
import {
  Collapsible,
  CollapsibleContent,
  CollapsibleTrigger,
} from "@/components/ui/collapsible";
import { Separator } from "@/components/ui/separator";

const groups = [
  {
    id: "overdue",
    label: "Overdue",
    tone: "text-destructive",
    open: true,
    tasks: [
      { title: "Renew the SSL certificate for api.acme.dev", due: "Sep 22" },
      { title: "Send Q3 usage report to finance", due: "Sep 24" },
    ],
  },
  {
    id: "today",
    label: "Today",
    tone: "text-foreground",
    open: true,
    tasks: [
      { title: "Review the onboarding copy pull request", due: "11:00" },
      { title: "Pair with Jonas on the export preset fix", due: "14:30" },
      { title: "Draft release notes for 3.2", due: "17:00" },
    ],
  },
  {
    id: "done",
    label: "Completed",
    tone: "text-muted-foreground",
    open: false,
    tasks: [
      { title: "Rotate staging database credentials", due: "Sep 23" },
      { title: "Archive the legacy billing dashboard", due: "Sep 23" },
      { title: "Close out the Q3 hiring retro", due: "Sep 22" },
    ],
  },
];

export default function Separator08() {
  const id = React.useId();

  return (
    <div className="flex w-full max-w-md flex-col gap-1">
      {groups.map((group) => (
        <Collapsible key={group.id} defaultOpen={group.open}>
          <CollapsibleTrigger className="group flex w-full items-center gap-3 rounded-md py-2 text-left outline-none focus-visible:ring-3 focus-visible:ring-ring/50">
            <span className={`text-xs font-medium ${group.tone}`}>
              {group.label}
            </span>
            <span className="rounded-full bg-muted px-1.5 text-xs text-muted-foreground tabular-nums">
              {group.tasks.length}
            </span>
            {/* A span keeps the separator valid inside the trigger button. */}
            <Separator
              render={<span />}
              className="flex-1 transition-colors group-hover:bg-foreground/20"
            />
            <ChevronDown
              aria-hidden="true"
              className="size-4 text-muted-foreground transition-transform duration-200 group-data-[panel-open]:rotate-180 motion-reduce:transition-none"
            />
          </CollapsibleTrigger>
          <CollapsibleContent>
            <ul className="flex flex-col pb-2">
              {group.tasks.map((task, index) => (
                <li key={task.title}>
                  <label
                    htmlFor={`${id}-${group.id}-${index}`}
                    className="flex cursor-pointer items-start gap-3 rounded-md px-1 py-2 hover:bg-muted/50"
                  >
                    <Checkbox
                      id={`${id}-${group.id}-${index}`}
                      defaultChecked={group.id === "done"}
                      className="mt-0.5"
                    />
                    <span className="flex-1 text-sm peer-data-checked:text-muted-foreground peer-data-checked:line-through">
                      {task.title}
                    </span>
                    <span className="text-xs text-muted-foreground tabular-nums">
                      {task.due}
                    </span>
                  </label>
                </li>
              ))}
            </ul>
          </CollapsibleContent>
        </Collapsible>
      ))}
    </div>
  );
}

TSX
"use client";

import { Building2, KeyRound, MailCheck } from "lucide-react";
import * as React from "react";

import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";
import { Separator } from "@/components/ui/separator";

export default function Separator09() {
  const [email, setEmail] = React.useState("");
  const [sentTo, setSentTo] = React.useState<string | null>(null);
  const emailId = React.useId();

  const sendLink = (event: React.FormEvent<HTMLFormElement>) => {
    event.preventDefault();
    const value = email.trim();
    if (value) setSentTo(value);
  };

  return (
    <section
      aria-labelledby="separator-09-heading"
      className="w-full max-w-sm rounded-xl border bg-card text-card-foreground"
    >
      <div className="flex flex-col gap-5 p-6">
        <div className="flex flex-col gap-1 text-center">
          <h3 id="separator-09-heading" className="text-lg font-semibold">
            Sign in to Northwind
          </h3>
          <p className="text-sm text-balance text-muted-foreground">
            Use your company account or a one-time email link.
          </p>
        </div>

        <div className="grid gap-2">
          <Button variant="outline">
            <Building2 aria-hidden="true" data-icon="inline-start" />
            Continue with SSO
          </Button>
          <Button variant="outline">
            <KeyRound aria-hidden="true" data-icon="inline-start" />
            Continue with a passkey
          </Button>
        </div>

        {/* The label sits on the line; flex-1 separators fill either side. */}
        <div className="flex items-center gap-3">
          <Separator className="flex-1" />
          <span className="text-xs text-muted-foreground">or with email</span>
          <Separator className="flex-1" />
        </div>

        {sentTo ? (
          <div
            role="status"
            className="flex flex-col items-center gap-2 rounded-lg bg-muted px-4 py-5 text-center"
          >
            <MailCheck aria-hidden="true" className="size-5" />
            <p className="text-sm font-medium">Check your inbox</p>
            <p className="text-sm break-all text-muted-foreground">
              We sent a sign-in link to {sentTo}.
            </p>
            <Button variant="link" size="sm" onClick={() => setSentTo(null)}>
              Use a different email
            </Button>
          </div>
        ) : (
          <form onSubmit={sendLink} className="grid gap-3">
            <div className="grid gap-2">
              <Label htmlFor={emailId}>Work email</Label>
              <Input
                id={emailId}
                type="email"
                autoComplete="email"
                placeholder="you@company.com"
                required
                value={email}
                onChange={(event) => setEmail(event.target.value)}
              />
            </div>
            <Button type="submit">Email me a sign-in link</Button>
          </form>
        )}
      </div>

      <Separator />
      <p className="px-6 py-4 text-center text-sm text-muted-foreground">
        New to Northwind?{" "}
        <a
          href="#sign-up"
          className="rounded-sm font-medium whitespace-nowrap text-foreground underline-offset-4 outline-none hover:underline focus-visible:ring-3 focus-visible:ring-ring/50"
        >
          Create a workspace
        </a>
      </p>
    </section>
  );
}

TSX
"use client";

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

import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Separator } from "@/components/ui/separator";

type Message = {
  id: number;
  from: "agent" | "customer";
  text: string;
  time: string;
  day: "Yesterday" | "Today";
  unread?: boolean;
};

const initialMessages: Message[] = [
  {
    id: 1,
    from: "customer",
    text: "My invoice for September shows two charges for the Team plan.",
    time: "4:12 PM",
    day: "Yesterday",
  },
  {
    id: 2,
    from: "agent",
    text: "Thanks for flagging this. I'm checking with billing now.",
    time: "4:20 PM",
    day: "Yesterday",
  },
  {
    id: 3,
    from: "agent",
    text: "The duplicate charge has been refunded. It should reach your card in 3-5 business days.",
    time: "9:02 AM",
    day: "Today",
    unread: true,
  },
  {
    id: 4,
    from: "agent",
    text: "Anything else I can help with?",
    time: "9:03 AM",
    day: "Today",
    unread: true,
  },
];

function DayDivider({ label }: { label: string }) {
  return (
    <li className="flex items-center gap-3 py-1">
      <Separator className="flex-1" />
      <span className="text-xs text-muted-foreground">{label}</span>
      <Separator className="flex-1" />
    </li>
  );
}

function UnreadDivider({ count }: { count: number }) {
  return (
    <li className="flex items-center gap-3 py-1">
      <Separator className="flex-1 bg-destructive/60" />
      <span className="text-xs font-medium text-destructive">
        {count} new {count === 1 ? "message" : "messages"}
      </span>
      <Separator className="flex-1 bg-destructive/60" />
    </li>
  );
}

export default function Separator10() {
  const [messages, setMessages] = React.useState(initialMessages);
  const [draft, setDraft] = React.useState("");
  const firstUnread = messages.findIndex((message) => message.unread);
  const unreadCount = messages.filter((message) => message.unread).length;

  const send = (event: React.FormEvent) => {
    event.preventDefault();
    const text = draft.trim();
    if (!text) return;
    setMessages((current) => [
      ...current.map((message) => ({ ...message, unread: false })),
      { id: current.length + 1, from: "customer", text, time: "Now", day: "Today" },
    ]);
    setDraft("");
  };

  return (
    <section
      aria-labelledby="separator-10-heading"
      className="flex w-full max-w-sm flex-col rounded-xl border bg-card text-card-foreground"
    >
      <header className="flex items-center gap-3 px-4 py-3">
        <span aria-hidden="true" className="size-2 rounded-full bg-success" />
        <div className="min-w-0">
          <h3 id="separator-10-heading" className="text-sm font-medium">
            Billing support
          </h3>
          <p className="text-xs text-muted-foreground">
            Jordan from Acme usually replies in minutes
          </p>
        </div>
      </header>
      <Separator />

      <ol aria-label="Conversation" className="flex flex-col gap-3 p-4">
        {messages.map((message, index) => {
          const showDay = index === 0 || messages[index - 1].day !== message.day;
          const isCustomer = message.from === "customer";
          return (
            <React.Fragment key={message.id}>
              {showDay ? <DayDivider label={message.day} /> : null}
              {index === firstUnread ? (
                <UnreadDivider count={unreadCount} />
              ) : null}
              <li
                className={
                  isCustomer
                    ? "flex flex-col items-end gap-1"
                    : "flex flex-col items-start gap-1"
                }
              >
                <p
                  className={
                    isCustomer
                      ? "max-w-[85%] rounded-2xl rounded-br-md bg-primary px-3 py-2 text-sm text-primary-foreground"
                      : "max-w-[85%] rounded-2xl rounded-bl-md bg-muted px-3 py-2 text-sm"
                  }
                >
                  <span className="sr-only">
                    {isCustomer ? "You said: " : "Jordan said: "}
                  </span>
                  {message.text}
                </p>
                <span className="text-xs text-muted-foreground tabular-nums">
                  {message.time}
                </span>
              </li>
            </React.Fragment>
          );
        })}
      </ol>

      <Separator />
      <form onSubmit={send} className="flex items-center gap-2 p-3">
        <Input
          aria-label="Reply to billing support"
          placeholder="Write a reply..."
          value={draft}
          onChange={(event) => setDraft(event.target.value)}
        />
        <Button type="submit" size="icon" disabled={!draft.trim()}>
          <SendHorizontal aria-hidden="true" />
          <span className="sr-only">Send reply</span>
        </Button>
      </form>
    </section>
  );
}

TSX
"use client";

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

import { Button } from "@/components/ui/button";
import { Separator } from "@/components/ui/separator";

type AgendaEvent = {
  title: string;
  start: number;
  end: number;
  where: string;
  video?: boolean;
};

type AgendaDay = {
  key: string;
  label: string;
  date: string;
  now: number;
  events: AgendaEvent[];
};

// Minutes since midnight keep the "now" comparison simple.
const at = (hours: number, minutes = 0) => hours * 60 + minutes;

const days: AgendaDay[] = [
  {
    key: "mon",
    label: "Mon",
    date: "Monday, October 6",
    now: at(11, 40),
    events: [
      {
        title: "Design standup",
        start: at(9, 30),
        end: at(9, 45),
        where: "Studio room",
        video: false,
      },
      {
        title: "Checkout review with Finance",
        start: at(10, 30),
        end: at(11, 15),
        where: "Google Meet",
        video: true,
      },
      {
        title: "Lunch with Aiko",
        start: at(12, 30),
        end: at(13, 30),
        where: "Café Lumen",
      },
      {
        title: "Interview: Senior engineer",
        start: at(15),
        end: at(16),
        where: "Zoom",
        video: true,
      },
    ],
  },
  {
    key: "tue",
    label: "Tue",
    date: "Tuesday, October 7",
    now: at(8, 10),
    events: [
      {
        title: "Roadmap planning",
        start: at(10),
        end: at(11, 30),
        where: "Boardroom",
      },
      {
        title: "1:1 with Marcus",
        start: at(14),
        end: at(14, 30),
        where: "Google Meet",
        video: true,
      },
    ],
  },
  {
    key: "wed",
    label: "Wed",
    date: "Wednesday, October 8",
    now: at(17, 5),
    events: [
      {
        title: "Customer call: Harbor Labs",
        start: at(9),
        end: at(9, 45),
        where: "Zoom",
        video: true,
      },
      {
        title: "Sprint demo",
        start: at(16),
        end: at(17),
        where: "All-hands room",
      },
    ],
  },
];

function formatTime(minutes: number) {
  const hours = Math.floor(minutes / 60);
  const mins = minutes % 60;
  const suffix = hours >= 12 ? "PM" : "AM";
  const displayHours = hours % 12 === 0 ? 12 : hours % 12;
  return `${displayHours}:${mins.toString().padStart(2, "0")} ${suffix}`;
}

function NowIndicator({ minutes }: { minutes: number }) {
  return (
    <li className="flex items-center gap-2 py-1">
      <span className="w-16 shrink-0 text-right text-xs font-medium text-destructive tabular-nums">
        {formatTime(minutes)}
      </span>
      <span aria-hidden="true" className="size-2 shrink-0 rounded-full bg-destructive" />
      <Separator aria-label="Current time" className="flex-1 bg-destructive" />
    </li>
  );
}

export default function Separator11() {
  const [dayKey, setDayKey] = React.useState(days[0].key);
  const day = days.find((item) => item.key === dayKey) ?? days[0];
  const nowIndex = day.events.findIndex((event) => event.start > day.now);
  const insertAt = nowIndex === -1 ? day.events.length : nowIndex;

  return (
    <section
      aria-labelledby="separator-11-heading"
      className="w-full max-w-sm rounded-xl border bg-card text-card-foreground"
    >
      <header className="flex flex-wrap items-center justify-between gap-x-3 gap-y-2 px-4 py-3">
        <div className="min-w-0">
          <h3 id="separator-11-heading" className="text-sm font-medium">
            Agenda
          </h3>
          <p className="truncate text-xs text-muted-foreground" aria-live="polite">
            {day.date}
          </p>
        </div>
        <fieldset className="flex min-w-0 gap-1">
          <legend className="sr-only">Choose day</legend>
          {days.map((item) => (
            <Button
              key={item.key}
              size="sm"
              variant={item.key === dayKey ? "secondary" : "ghost"}
              aria-pressed={item.key === dayKey}
              onClick={() => setDayKey(item.key)}
            >
              {item.label}
            </Button>
          ))}
        </fieldset>
      </header>
      <Separator />

      <ol className="flex flex-col gap-1 p-3">
        {day.events.map((event, index) => {
          const past = event.end <= day.now;
          const current = event.start <= day.now && event.end > day.now;
          return (
            <React.Fragment key={event.title}>
              {index === insertAt ? <NowIndicator minutes={day.now} /> : null}
              <li
                className={
                  past
                    ? "flex items-stretch gap-2 rounded-md px-1 py-2 opacity-60"
                    : "flex items-stretch gap-2 rounded-md px-1 py-2"
                }
              >
                <span className="w-16 shrink-0 pt-0.5 text-right text-xs text-muted-foreground tabular-nums">
                  {formatTime(event.start)}
                </span>
                <Separator
                  orientation="vertical"
                  className={
                    current
                      ? "rounded-full bg-primary data-[orientation=vertical]:w-0.5"
                      : "rounded-full bg-chart-2 data-[orientation=vertical]:w-0.5"
                  }
                />
                <div className="min-w-0 flex-1">
                  <p className="text-sm font-medium text-pretty">{event.title}</p>
                  <p className="flex items-start gap-1 text-xs text-muted-foreground">
                    {event.video ? (
                      <Video aria-hidden="true" className="mt-0.5 size-3 shrink-0" />
                    ) : null}
                    <span>
                      {formatTime(event.start)} to {formatTime(event.end)} ·{" "}
                      {event.where}
                    </span>
                  </p>
                </div>
              </li>
            </React.Fragment>
          );
        })}
        {insertAt === day.events.length ? (
          <NowIndicator minutes={day.now} />
        ) : null}
      </ol>
    </section>
  );
}

TSX
"use client";

import { Check, Copy, RotateCw } from "lucide-react";
import * as React from "react";

import { Badge } from "@/components/ui/badge";
import { Button } from "@/components/ui/button";
import { Separator } from "@/components/ui/separator";
import {
  Tabs,
  TabsContent,
  TabsList,
  TabsTrigger,
} from "@/components/ui/tabs";

type Pane = "headers" | "body";

const panes: Pane[] = ["headers", "body"];

const request = {
  headers: [
    ["Authorization", "Bearer sk_live_•••• 4f2a"],
    ["Content-Type", "application/json"],
    ["Idempotency-Key", "ord_8Kq2-retry-1"],
  ],
  body: `{
  "amount": 12900,
  "currency": "usd",
  "customer": "cus_Nw81xLm"
}`,
};

const response = {
  headers: [
    ["Content-Type", "application/json"],
    ["X-Request-Id", "req_5hT0aQ9vB2"],
    ["RateLimit-Remaining", "98"],
  ],
  body: `{
  "id": "pay_3PzQe7",
  "status": "succeeded",
  "amount": 12900
}`,
};

function PaneContent({
  pane,
  data,
}: {
  pane: Pane;
  data: typeof request;
}) {
  if (pane === "body") {
    return (
      <pre className="overflow-x-auto rounded-md bg-muted p-3 font-mono text-xs leading-relaxed">
        <code>{data.body}</code>
      </pre>
    );
  }
  return (
    <dl className="text-xs">
      {data.headers.map(([name, value], index) => (
        <div key={name}>
          {index > 0 ? <Separator /> : null}
          <div className="flex flex-col gap-0.5 py-2">
            <dt className="text-muted-foreground">{name}</dt>
            <dd className="truncate font-mono">{value}</dd>
          </div>
        </div>
      ))}
    </dl>
  );
}

export default function Separator12() {
  const [pane, setPane] = React.useState<Pane>("headers");
  const [copied, setCopied] = React.useState(false);
  const [replay, setReplay] = React.useState({ count: 0, pending: false });

  React.useEffect(() => {
    if (!replay.pending) return;
    const timeout = window.setTimeout(
      () => setReplay((current) => ({ ...current, pending: false })),
      700,
    );
    return () => window.clearTimeout(timeout);
  }, [replay.pending]);

  // Each replay lands with a slightly different timing, as real calls do.
  const elapsed = [184, 162, 205, 171][replay.count % 4];

  React.useEffect(() => {
    if (!copied) return;
    const timeout = window.setTimeout(() => setCopied(false), 1600);
    return () => window.clearTimeout(timeout);
  }, [copied]);

  const copyCurl = () => {
    const command = `curl -X POST https://api.acme.dev/v1/payments -d '${request.body.replace(/\s+/g, "")}'`;
    navigator.clipboard?.writeText(command).catch(() => {});
    setCopied(true);
  };

  return (
    <section
      aria-labelledby="separator-12-heading"
      className="@container w-full max-w-2xl rounded-xl border bg-card text-card-foreground"
    >
      <header className="flex flex-wrap items-center gap-x-3 gap-y-2 px-4 py-3">
        <div className="flex min-w-0 flex-1 items-center gap-2">
          <Badge variant="outline" className="font-mono">
            POST
          </Badge>
          <h3
            id="separator-12-heading"
            className="truncate font-mono text-sm font-medium"
          >
            /v1/payments
          </h3>
        </div>
        <div className="flex items-center gap-1">
          <Button variant="ghost" size="sm" onClick={copyCurl}>
            {copied ? (
              <Check aria-hidden="true" data-icon="inline-start" />
            ) : (
              <Copy aria-hidden="true" data-icon="inline-start" />
            )}
            <span className="sr-only @sm:not-sr-only">
              {copied ? "Copied" : "Copy cURL"}
            </span>
          </Button>
          <Button
            variant="ghost"
            size="icon-sm"
            disabled={replay.pending}
            onClick={() =>
              setReplay((current) => ({
                count: current.count + 1,
                pending: true,
              }))
            }
          >
            <RotateCw
              aria-hidden="true"
              className={
                replay.pending
                  ? "animate-spin motion-reduce:animate-none"
                  : undefined
              }
            />
            <span className="sr-only">Replay request</span>
          </Button>
        </div>
      </header>

      <div className="flex h-9 items-stretch gap-2 overflow-x-auto border-y bg-muted/40 px-3 text-xs whitespace-nowrap">
        <dl className="flex items-center gap-1.5">
          <dt className="sr-only">Status</dt>
          <dd className="flex items-center gap-1.5 font-medium text-success">
            <span
              aria-hidden="true"
              className="size-1.5 shrink-0 rounded-full bg-success"
            />
            201 Created
          </dd>
        </dl>
        <Separator orientation="vertical" className="my-2.5" />
        <dl className="flex items-center gap-1">
          <dt className="text-muted-foreground">Time</dt>
          <dd className="tabular-nums" aria-live="polite">
            {replay.pending ? "Sending..." : `${elapsed} ms`}
          </dd>
        </dl>
        <Separator orientation="vertical" className="my-2.5" />
        <dl className="flex items-center gap-1">
          <dt className="text-muted-foreground">Size</dt>
          <dd className="tabular-nums">2.4 KB</dd>
        </dl>
      </div>

      <Tabs
        value={pane}
        onValueChange={(value) => setPane(value as Pane)}
        className="gap-0"
      >
        <div className="px-4 pt-3">
          <TabsList>
            <TabsTrigger value="headers">Headers</TabsTrigger>
            <TabsTrigger value="body">Body</TabsTrigger>
          </TabsList>
        </div>
        {panes.map((value) => (
          <TabsContent
            key={value}
            value={value}
            className="grid grid-cols-1 gap-3 p-4 @xl:grid-cols-[minmax(0,1fr)_auto_minmax(0,1fr)] @xl:gap-4"
          >
            <div className="min-w-0">
              <h4 className="mb-2 text-xs font-medium">Request</h4>
              <PaneContent pane={value} data={request} />
            </div>
            <Separator className="@xl:hidden" />
            <Separator orientation="vertical" className="hidden @xl:block" />
            <div className="min-w-0">
              <h4 className="mb-2 text-xs font-medium">Response</h4>
              <PaneContent pane={value} data={response} />
            </div>
          </TabsContent>
        ))}
      </Tabs>
    </section>
  );
}

TSX
"use client";

import { Bookmark, Clock, Eye, MessageSquare } from "lucide-react";
import * as React from "react";

import { Avatar, AvatarFallback } from "@/components/ui/avatar";
import { Badge } from "@/components/ui/badge";
import { Button } from "@/components/ui/button";
import { Separator } from "@/components/ui/separator";

const meta = [
  { icon: null, label: "Sep 18, 2026" },
  { icon: Clock, label: "9 min read" },
  { icon: Eye, label: "4.2k views" },
  { icon: MessageSquare, label: "38 comments" },
];

export default function Separator13() {
  const [saved, setSaved] = React.useState(false);

  return (
    <article
      aria-labelledby="separator-13-heading"
      className="w-full max-w-lg rounded-xl border bg-card p-5 text-card-foreground"
    >
      <Badge variant="secondary">Engineering</Badge>
      <h3
        id="separator-13-heading"
        className="mt-3 text-lg leading-snug font-semibold text-balance"
      >
        How we cut cold starts by 60% by moving session checks to the edge
      </h3>

      {/*
        Each item carries its own leading separator. The list is pulled left
        by gap + 1px inside a clipping wrapper, so whichever item starts a
        line hides its separator and wrapped lines never begin with a rule.
      */}
      <div className="mt-3 overflow-hidden">
        <ul className="-ml-[calc(0.75rem+1px)] flex flex-wrap items-center gap-x-3 gap-y-1.5 text-sm text-muted-foreground">
          <li className="flex items-center gap-3">
            <Separator
              orientation="vertical"
              className="h-4 data-[orientation=vertical]:self-center"
            />
            <span className="flex items-center gap-2">
              <Avatar size="sm">
                <AvatarFallback>NO</AvatarFallback>
              </Avatar>
              <span className="font-medium text-foreground">Nadia Osei</span>
            </span>
          </li>
          {meta.map((item) => (
            <li key={item.label} className="flex items-center gap-3">
              <Separator
                orientation="vertical"
                className="h-4 data-[orientation=vertical]:self-center"
              />
              <span className="flex items-center gap-1.5 whitespace-nowrap tabular-nums">
                {item.icon ? (
                  <item.icon aria-hidden="true" className="size-3.5" />
                ) : null}
                {item.label}
              </span>
            </li>
          ))}
        </ul>
      </div>

      <p className="mt-4 text-sm leading-relaxed text-pretty text-muted-foreground">
        Every request used to wait on a round trip to the auth service in{" "}
        <span className="whitespace-nowrap">us-east-1</span>. Verifying signed session tokens in the edge runtime removed
        that hop for 94% of traffic, and taught us where caching still hurts.
      </p>

      <Separator className="my-4" />

      <div className="flex items-center justify-between gap-3">
        <a
          href="#read-article"
          className="rounded-sm text-sm font-medium underline-offset-4 outline-none hover:underline focus-visible:ring-3 focus-visible:ring-ring/50"
        >
          Read article
        </a>
        <Button
          variant="ghost"
          size="sm"
          aria-pressed={saved}
          onClick={() => setSaved((value) => !value)}
        >
          <Bookmark
            aria-hidden="true"
            data-icon="inline-start"
            className={saved ? "fill-current" : undefined}
          />
          {saved ? "Saved" : "Save"}
        </Button>
      </div>
    </article>
  );
}