Aspect Ratio

TSX
"use client";

import { AspectRatio } from "@/components/ui/aspect-ratio";

const presets = [
  { label: "1:1", ratio: 1, use: "Avatars, product tiles" },
  { label: "4:3", ratio: 4 / 3, use: "Photos, slides" },
  { label: "16:9", ratio: 16 / 9, use: "Video, hero banners" },
  { label: "21:9", ratio: 21 / 9, use: "Cinematic headers" },
];

export default function AspectRatio01() {
  return (
    <ul className="grid w-full max-w-md grid-cols-2 items-end gap-x-4 gap-y-5">
      {presets.map((preset) => (
        <li key={preset.label} className="flex flex-col gap-2">
          <AspectRatio
            ratio={preset.ratio}
            className="flex items-center justify-center rounded-lg border border-dashed border-border bg-muted/50"
          >
            <span className="text-sm font-medium tabular-nums text-foreground">
              {preset.label}
            </span>
          </AspectRatio>
          <span className="text-xs text-muted-foreground">{preset.use}</span>
        </li>
      ))}
    </ul>
  );
}

TSX
"use client";

import { Clock } from "lucide-react";

import { AspectRatio } from "@/components/ui/aspect-ratio";
import { Badge } from "@/components/ui/badge";
import {
  Card,
  CardContent,
  CardDescription,
  CardHeader,
  CardTitle,
} from "@/components/ui/card";

const related = [
  { title: "Choosing a type scale for dense dashboards", minutes: 6 },
  { title: "Motion that respects reduced-motion settings", minutes: 4 },
];

export default function AspectRatio02() {
  return (
    <div className="flex w-full max-w-sm flex-col gap-4">
      <Card className="pt-0">
        <AspectRatio ratio={16 / 9} className="bg-muted">
          <img
            src="/placeholder.svg"
            alt="Side-by-side light and dark versions of a settings screen"
            className="absolute inset-0 size-full object-cover"
          />
        </AspectRatio>
        <CardHeader>
          <Badge variant="secondary" className="mb-1">
            Design systems
          </Badge>
          <CardTitle>Designing dark mode without inverting everything</CardTitle>
          <CardDescription>
            Why elevation, not brightness, should drive your dark palette.
          </CardDescription>
        </CardHeader>
      </Card>
      <ul className="flex flex-col gap-3">
        {related.map((item) => (
          <li key={item.title}>
            <Card size="sm" className="flex-row items-center gap-3 px-3">
              <AspectRatio
                ratio={1}
                className="w-16 shrink-0 overflow-hidden rounded-md bg-muted"
              >
                <img
                  src="/placeholder.svg"
                  alt=""
                  className="absolute inset-0 size-full object-cover"
                />
              </AspectRatio>
              <CardContent className="flex min-w-0 flex-col gap-1 px-0">
                <span className="text-sm leading-snug font-medium">
                  {item.title}
                </span>
                <span className="flex items-center gap-1 text-xs text-muted-foreground">
                  <Clock aria-hidden="true" className="size-3" />
                  {item.minutes} min read
                </span>
              </CardContent>
            </Card>
          </li>
        ))}
      </ul>
    </div>
  );
}

TSX
"use client";

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

import { AspectRatio } from "@/components/ui/aspect-ratio";
import { Button } from "@/components/ui/button";
import { Skeleton } from "@/components/ui/skeleton";
import { Spinner } from "@/components/ui/spinner";
import { ToggleGroup, ToggleGroupItem } from "@/components/ui/toggle-group";

type MediaState = "loading" | "error" | "ready";

const states: { value: MediaState; label: string }[] = [
  { value: "loading", label: "Loading" },
  { value: "error", label: "Error" },
  { value: "ready", label: "Ready" },
];

const statusText: Record<MediaState, string> = {
  loading: "Loading cover image.",
  error: "The cover image failed to load.",
  ready: "Cover image loaded.",
};

export default function AspectRatio03() {
  const [state, setState] = React.useState<MediaState>("loading");
  const [retrying, setRetrying] = React.useState(false);

  React.useEffect(() => {
    if (!retrying) return;
    const timer = window.setTimeout(() => {
      setRetrying(false);
      setState("ready");
    }, 1200);
    return () => window.clearTimeout(timer);
  }, [retrying]);

  return (
    <div className="flex w-full max-w-md flex-col gap-4">
      <div className="flex flex-col items-start gap-2 sm:flex-row sm:items-center sm:justify-between sm:gap-3">
        <span id="aspect-ratio-03-label" className="text-sm font-medium">
          Preview state
        </span>
        <ToggleGroup
          aria-labelledby="aspect-ratio-03-label"
          variant="outline"
          size="sm"
          spacing={0}
          value={[state]}
          onValueChange={(next) => {
            if (next.length === 0) return;
            setRetrying(false);
            setState(next[0] as MediaState);
          }}
        >
          {states.map((item) => (
            <ToggleGroupItem
              key={item.value}
              value={item.value}
              className="aria-pressed:bg-accent aria-pressed:text-accent-foreground"
            >
              {item.label}
            </ToggleGroupItem>
          ))}
        </ToggleGroup>
      </div>

      <AspectRatio
        ratio={3 / 2}
        aria-busy={state === "loading"}
        className="overflow-hidden rounded-xl border border-border bg-muted"
      >
        {state === "loading" && (
          <>
            <Skeleton className="absolute inset-0 rounded-none" />
            <div className="absolute inset-0 flex items-center justify-center text-muted-foreground">
              <Spinner className="size-5" />
            </div>
          </>
        )}
        {state === "error" && (
          <div className="absolute inset-0 flex flex-col items-center justify-center gap-2 p-4 text-center sm:gap-3 sm:p-6">
            <ImageOff
              aria-hidden="true"
              className="size-6 text-muted-foreground"
            />
            <div className="flex flex-col gap-1">
              <p className="text-sm font-medium">Couldn't load the cover</p>
              <p className="hidden text-xs text-muted-foreground sm:block">
                The file may have moved. Try again or upload a new one.
              </p>
            </div>
            <Button
              variant="outline"
              size="sm"
              disabled={retrying}
              onClick={() => {
                setRetrying(true);
                setState("loading");
              }}
            >
              <RotateCw aria-hidden="true" data-icon="inline-start" />
              Retry
            </Button>
          </div>
        )}
        {state === "ready" && (
          <img
            src="/placeholder.svg"
            alt="Harbor at dusk with fishing boats moored along the pier"
            className="absolute inset-0 size-full object-cover"
          />
        )}
      </AspectRatio>
      <p className="sr-only" aria-live="polite">
        {statusText[state]}
      </p>
    </div>
  );
}

TSX
"use client";

import * as React from "react";

import { AspectRatio } from "@/components/ui/aspect-ratio";
import { Label } from "@/components/ui/label";
import {
  NumberField,
  NumberFieldDecrement,
  NumberFieldGroup,
  NumberFieldIncrement,
  NumberFieldInput,
} from "@/components/ui/number-field";

// Tallest the preview may grow, in pixels, so portrait ratios stay compact.
const MAX_PREVIEW_HEIGHT = 220;

const named: { ratio: number; name: string }[] = [
  { ratio: 1, name: "Square" },
  { ratio: 4 / 3, name: "Standard" },
  { ratio: 3 / 2, name: "Classic photo" },
  { ratio: 16 / 9, name: "Widescreen" },
  { ratio: 21 / 9, name: "Ultrawide" },
  { ratio: 4 / 5, name: "Portrait post" },
  { ratio: 9 / 16, name: "Vertical story" },
];

function describe(ratio: number) {
  const match = named.find((item) => Math.abs(item.ratio - ratio) < 0.01);
  return match ? match.name : "Custom";
}

export default function AspectRatio04() {
  const [width, setWidth] = React.useState(16);
  const [height, setHeight] = React.useState(9);
  const ratio = width / height;

  const fields = [
    { id: "aspect-ratio-04-width", label: "Width", value: width, set: setWidth },
    {
      id: "aspect-ratio-04-height",
      label: "Height",
      value: height,
      set: setHeight,
    },
  ];

  return (
    <div className="flex w-full max-w-md flex-col gap-5">
      <div className="flex flex-wrap items-end gap-4">
        {fields.map((field) => (
          <div key={field.id} className="flex flex-col gap-2">
            <Label htmlFor={field.id}>{field.label}</Label>
            <NumberField
              id={field.id}
              min={1}
              max={32}
              value={field.value}
              onValueChange={(next) => field.set(next ?? 1)}
            >
              <NumberFieldGroup>
                <NumberFieldDecrement />
                <NumberFieldInput className="w-12" />
                <NumberFieldIncrement />
              </NumberFieldGroup>
            </NumberField>
          </div>
        ))}
        <p className="ml-auto flex flex-col items-end text-right" aria-live="polite">
          <span className="text-sm font-medium tabular-nums">
            {ratio.toFixed(2)} : 1
          </span>
          <span className="text-xs text-muted-foreground">
            {describe(ratio)}
          </span>
        </p>
      </div>
      <div
        className="mx-auto w-full transition-[max-width] duration-300 ease-out motion-reduce:transition-none"
        style={{ maxWidth: `${MAX_PREVIEW_HEIGHT * ratio}px` }}
      >
        <AspectRatio
          ratio={ratio}
          className="flex items-center justify-center rounded-lg border border-dashed border-border bg-muted/50"
        >
          <span className="text-xs tabular-nums text-muted-foreground">
            {width} × {height}
          </span>
        </AspectRatio>
      </div>
    </div>
  );
}

TSX
"use client";

import { Pause, Play } from "lucide-react";
import * as React from "react";

import { AspectRatio } from "@/components/ui/aspect-ratio";
import { Badge } from "@/components/ui/badge";
import { Button } from "@/components/ui/button";

// Share of the episode already watched, in percent.
const WATCHED = 38;

export default function AspectRatio05() {
  const [playing, setPlaying] = React.useState(false);

  return (
    <figure className="flex w-full max-w-md flex-col gap-3">
      <AspectRatio
        ratio={16 / 9}
        className="group overflow-hidden rounded-xl bg-muted ring-1 ring-foreground/10"
      >
        <img
          src="/placeholder.svg"
          alt="Speaker on stage in front of a slide about incremental rendering"
          className="absolute inset-0 size-full object-cover transition-transform duration-500 ease-out group-hover:scale-105 motion-reduce:transition-none"
        />
        <Badge className="absolute top-3 left-3">
          {playing ? "Playing" : "Replay"}
        </Badge>
        <span className="absolute top-3 right-3 rounded-md bg-background/85 px-1.5 py-0.5 text-xs font-medium tabular-nums text-foreground">
          42:17
        </span>
        <div className="absolute inset-0 flex items-center justify-center">
          <Button
            size="icon-lg"
            aria-label={
              playing
                ? "Pause Streaming server components"
                : "Resume Streaming server components at 16:04"
            }
            onClick={() => setPlaying((value) => !value)}
            className="size-12 rounded-full shadow-lg transition-transform group-hover:scale-110 motion-reduce:transition-none"
          >
            {playing ? (
              <Pause aria-hidden="true" className="size-5 fill-current" />
            ) : (
              <Play aria-hidden="true" className="size-5 fill-current" />
            )}
          </Button>
        </div>
        <div
          aria-hidden="true"
          className="absolute inset-x-0 bottom-0 h-1 bg-background/60"
        >
          <div className="h-full bg-primary" style={{ width: `${WATCHED}%` }} />
        </div>
      </AspectRatio>
      <figcaption className="flex flex-col gap-0.5">
        <span className="text-sm font-medium">Streaming server components</span>
        <span className="text-xs text-muted-foreground">
          Frontend Summit 2026 ·{" "}
          {playing ? "Now playing from 16:04" : `${WATCHED}% watched, resumes at 16:04`}
        </span>
      </figcaption>
    </figure>
  );
}

TSX
"use client";

import { cn } from "cn";
import { Mic, MicOff, PhoneOff, Pin, Video, VideoOff } from "lucide-react";
import * as React from "react";

import { AspectRatio } from "@/components/ui/aspect-ratio";
import { Avatar, AvatarFallback } from "@/components/ui/avatar";
import { Button } from "@/components/ui/button";
import { Toggle } from "@/components/ui/toggle";

const participants = [
  { id: "maya", name: "Maya Chen", initials: "MC", camera: true, muted: false },
  { id: "jonas", name: "Jonas Weber", initials: "JW", camera: false, muted: true },
  { id: "amara", name: "Amara Osei", initials: "AO", camera: true, muted: true },
];

// The participant currently talking gets the speaking ring.
const SPEAKER_ID = "maya";

export default function AspectRatio06() {
  const [pinnedId, setPinnedId] = React.useState<string | null>(null);
  const [micOn, setMicOn] = React.useState(true);
  const [cameraOn, setCameraOn] = React.useState(true);
  const [left, setLeft] = React.useState(false);
  const leaveRef = React.useRef<HTMLButtonElement>(null);
  const rejoinRef = React.useRef<HTMLButtonElement>(null);
  const moveFocus = React.useRef(false);

  // Leaving or rejoining swaps the controls, so hand focus to the new button.
  React.useEffect(() => {
    if (!moveFocus.current) return;
    moveFocus.current = false;
    (left ? rejoinRef : leaveRef).current?.focus();
  }, [left]);

  const tiles = [
    ...participants,
    {
      id: "you",
      name: "You",
      initials: "SL",
      camera: cameraOn,
      muted: !micOn,
    },
  ];
  // The pinned tile moves to the front and spans the full row.
  const ordered = pinnedId
    ? [
        ...tiles.filter((tile) => tile.id === pinnedId),
        ...tiles.filter((tile) => tile.id !== pinnedId),
      ]
    : tiles;

  return (
    <section
      aria-labelledby="aspect-ratio-06-title"
      className="w-full max-w-lg rounded-xl border bg-card text-card-foreground"
    >
      <div className="px-4 pt-4 pb-3">
        <h3 id="aspect-ratio-06-title" className="truncate font-medium">
          Q3 roadmap review
        </h3>
        <p className="text-xs text-muted-foreground tabular-nums">
          {left
            ? `You left · ${participants.length} still in call`
            : `${tiles.length} in call · 24:08`}
        </p>
      </div>
      {left ? (
        <div className="flex flex-col items-center gap-3 px-4 pt-2 pb-6 text-center">
          <p className="text-sm text-muted-foreground" aria-live="polite">
            You left the call.
          </p>
          <Button
            ref={rejoinRef}
            size="sm"
            onClick={() => {
              moveFocus.current = true;
              setLeft(false);
            }}
          >
            Rejoin
          </Button>
        </div>
      ) : (
        <>
          <ul aria-label="Participants" className="grid grid-cols-2 gap-2 px-4">
            {ordered.map((tile) => {
              const pinned = tile.id === pinnedId;
              const speaking = tile.id === SPEAKER_ID && !tile.muted;
              return (
                <li key={tile.id} className={pinned ? "col-span-2" : undefined}>
                  <AspectRatio
                    ratio={16 / 9}
                    className={cn(
                      "group overflow-hidden rounded-lg bg-muted ring-1 ring-foreground/10 transition-shadow",
                      speaking && "ring-2 ring-primary",
                    )}
                  >
                    {tile.camera ? (
                      <img
                        src="/placeholder.svg"
                        alt=""
                        className="absolute inset-0 size-full object-cover"
                      />
                    ) : (
                      <div className="absolute inset-0 flex items-center justify-center">
                        <Avatar size={pinned ? "lg" : "default"}>
                          <AvatarFallback className="bg-background text-foreground">
                            {tile.initials}
                          </AvatarFallback>
                        </Avatar>
                      </div>
                    )}
                    <span className="absolute bottom-1.5 left-1.5 flex max-w-[calc(100%-0.75rem)] items-center gap-1 rounded-md bg-background/90 px-1.5 py-0.5 text-xs font-medium text-foreground">
                      {tile.muted ? (
                        <MicOff
                          aria-hidden="true"
                          className="size-3 shrink-0 text-destructive"
                        />
                      ) : null}
                      <span className="truncate">{tile.name}</span>
                      <span className="sr-only">
                        {tile.muted ? ", muted" : ""}
                        {tile.camera ? "" : ", camera off"}
                        {speaking ? ", speaking" : ""}
                      </span>
                    </span>
                    <Button
                      variant="outline"
                      size="icon-xs"
                      aria-label={
                        pinned ? `Unpin ${tile.name}` : `Pin ${tile.name}`
                      }
                      aria-pressed={pinned}
                      onClick={() => setPinnedId(pinned ? null : tile.id)}
                      className="absolute top-1.5 right-1.5 bg-background/90 dark:bg-background/90 opacity-0 group-hover:opacity-100 focus-visible:opacity-100 aria-pressed:opacity-100 pointer-coarse:opacity-100"
                    >
                      <Pin aria-hidden="true" />
                    </Button>
                  </AspectRatio>
                </li>
              );
            })}
          </ul>
          <div className="flex items-center justify-center gap-2 p-4">
            <Toggle
              variant="outline"
              aria-label="Microphone"
              pressed={micOn}
              onPressedChange={setMicOn}
            >
              {micOn ? <Mic aria-hidden="true" /> : <MicOff aria-hidden="true" />}
            </Toggle>
            <Toggle
              variant="outline"
              aria-label="Camera"
              pressed={cameraOn}
              onPressedChange={setCameraOn}
            >
              {cameraOn ? (
                <Video aria-hidden="true" />
              ) : (
                <VideoOff aria-hidden="true" />
              )}
            </Toggle>
            <Button
              ref={leaveRef}
              variant="destructive"
              size="sm"
              onClick={() => {
                moveFocus.current = true;
                setLeft(true);
                setPinnedId(null);
              }}
            >
              <PhoneOff aria-hidden="true" data-icon="inline-start" />
              Leave
            </Button>
          </div>
        </>
      )}
    </section>
  );
}

TSX
"use client";

import * as React from "react";

import { AspectRatio } from "@/components/ui/aspect-ratio";
import { Slider } from "@/components/ui/slider";

export default function AspectRatio07() {
  const [position, setPosition] = React.useState(50);

  return (
    <div className="flex w-full max-w-md flex-col gap-4">
      <AspectRatio
        ratio={3 / 2}
        className="overflow-hidden rounded-xl bg-muted ring-1 ring-foreground/10"
      >
        <img
          src="/placeholder.svg"
          alt="Living room after color grading, warm and balanced"
          className="absolute inset-0 size-full object-cover"
        />
        <img
          src="/placeholder.svg"
          alt="Living room before color grading, flat and desaturated"
          className="absolute inset-0 size-full object-cover grayscale"
          style={{ clipPath: `inset(0 ${100 - position}% 0 0)` }}
        />
        <div
          aria-hidden="true"
          className="absolute inset-y-0 w-0.5 -translate-x-1/2 bg-background shadow-sm"
          style={{ left: `${position}%` }}
        />
        <span className="absolute top-3 left-3 rounded-md bg-background/85 px-2 py-0.5 text-xs font-medium text-foreground">
          Before
        </span>
        <span className="absolute top-3 right-3 rounded-md bg-background/85 px-2 py-0.5 text-xs font-medium text-foreground">
          After
        </span>
      </AspectRatio>
      <div className="flex flex-col gap-2">
        <div className="flex items-center justify-between">
          <span id="aspect-ratio-07-label" className="text-sm font-medium">
            Compare edit
          </span>
          <span
            aria-hidden="true"
            className="text-sm tabular-nums text-muted-foreground"
          >
            {position}% original
          </span>
        </div>
        <Slider
          aria-labelledby="aspect-ratio-07-label"
          value={[position]}
          onValueChange={(value) =>
            setPosition(typeof value === "number" ? value : value[0])
          }
        />
      </div>
    </div>
  );
}

TSX
"use client";

import { Heart, ShoppingBag } from "lucide-react";
import * as React from "react";

import { AspectRatio } from "@/components/ui/aspect-ratio";
import { Badge } from "@/components/ui/badge";
import { Button } from "@/components/ui/button";

const colorways = [
  { id: "oat", label: "Oat", swatch: "bg-muted dark:bg-foreground" },
  { id: "charcoal", label: "Charcoal", swatch: "bg-foreground dark:bg-muted" },
  { id: "moss", label: "Moss", swatch: "bg-chart-2" },
];

export default function AspectRatio08() {
  const [colorway, setColorway] = React.useState(colorways[0]);
  const [saved, setSaved] = React.useState(false);
  const [added, setAdded] = React.useState(false);

  return (
    <article className="w-full max-w-72">
      <div className="relative overflow-hidden rounded-xl border bg-muted">
        <AspectRatio ratio={4 / 5}>
          <img
            src="/placeholder.svg"
            alt={`Merino crew sweater in ${colorway.label.toLowerCase()}, front view`}
            className="absolute inset-0 size-full object-cover"
          />
        </AspectRatio>
        <Badge className="absolute top-3 left-3">New season</Badge>
        <Button
          variant="outline"
          size="icon-sm"
          aria-label={saved ? "Remove from wishlist" : "Save to wishlist"}
          aria-pressed={saved}
          onClick={() => setSaved((value) => !value)}
          className="absolute top-3 right-3 rounded-full bg-background/90 dark:bg-background/90 dark:hover:bg-muted"
        >
          <Heart
            aria-hidden="true"
            className={saved ? "fill-current text-destructive" : undefined}
          />
        </Button>
      </div>
      <div className="mt-3 flex items-start justify-between gap-3">
        <div className="min-w-0">
          <h3 className="truncate text-sm font-medium">Merino Crew Sweater</h3>
          <p className="text-sm text-muted-foreground">{colorway.label}</p>
        </div>
        <p className="text-sm font-semibold tabular-nums">$128</p>
      </div>
      <fieldset className="mt-3">
        <legend className="sr-only">Color</legend>
        <div className="flex gap-2">
          {colorways.map((option) => (
            <button
              key={option.id}
              type="button"
              aria-label={option.label}
              aria-pressed={colorway.id === option.id}
              onClick={() => {
                setColorway(option);
                setAdded(false);
              }}
              className="flex size-7 items-center justify-center rounded-full border border-transparent outline-none transition-colors hover:border-border focus-visible:ring-3 focus-visible:ring-ring/50 aria-pressed:border-foreground"
            >
              <span
                className={`size-5 rounded-full border border-border ${option.swatch}`}
              />
            </button>
          ))}
        </div>
      </fieldset>
      <Button className="mt-4 w-full" onClick={() => setAdded(true)}>
        <ShoppingBag aria-hidden="true" data-icon="inline-start" />
        {added ? "Added to bag" : "Add to bag"}
      </Button>
      <p className="sr-only" aria-live="polite">
        {added ? `Merino Crew Sweater in ${colorway.label} added to bag.` : ""}
      </p>
    </article>
  );
}

TSX
"use client";

import { ImageUp, Trash2 } from "lucide-react";
import * as React from "react";

import { AspectRatio } from "@/components/ui/aspect-ratio";
import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar";
import { Button } from "@/components/ui/button";

export default function AspectRatio09() {
  const inputRef = React.useRef<HTMLInputElement>(null);
  const [cover, setCover] = React.useState<string | null>("/placeholder.svg");
  const [fileName, setFileName] = React.useState("team-offsite-lisbon.jpg");

  // Revoke object URLs created for local previews when they are replaced.
  React.useEffect(() => {
    return () => {
      if (cover?.startsWith("blob:")) URL.revokeObjectURL(cover);
    };
  }, [cover]);

  return (
    <section
      aria-labelledby="aspect-ratio-09-title"
      className="w-full max-w-lg rounded-xl border bg-card text-card-foreground"
    >
      <div className="border-b p-4">
        <h3 id="aspect-ratio-09-title" className="font-medium">
          Profile cover
        </h3>
        <p className="text-sm text-muted-foreground">
          Shown at the top of your public profile and in team directories.
        </p>
      </div>
      <div className="p-4">
        <div className="relative">
          <AspectRatio
            ratio={3 / 1}
            className="overflow-hidden rounded-lg border bg-muted"
          >
            {cover ? (
              <img
                src={cover}
                alt="Current profile cover"
                className="absolute inset-0 size-full object-cover"
              />
            ) : (
              <div className="absolute inset-0 flex items-center justify-center text-sm text-muted-foreground">
                No cover image
              </div>
            )}
          </AspectRatio>
          <Avatar className="absolute -bottom-7 left-4 size-16 ring-4 ring-card">
            <AvatarImage src="/placeholder.svg" alt="Priya Raman" />
            <AvatarFallback>PR</AvatarFallback>
          </Avatar>
        </div>
        <div className="mt-10 flex flex-wrap items-center justify-between gap-3">
          <div className="min-w-0 text-sm">
            <p className="truncate font-medium">
              {cover ? fileName : "Using the default cover"}
            </p>
            <p className="text-muted-foreground">
              3:1 ratio · 1500 × 500 px recommended · JPG or PNG up to 5 MB
            </p>
          </div>
          <div className="flex gap-2">
            <input
              ref={inputRef}
              id="aspect-ratio-09-file"
              type="file"
              accept="image/png, image/jpeg"
              className="sr-only"
              tabIndex={-1}
              aria-hidden="true"
              onChange={(event) => {
                const file = event.target.files?.[0];
                if (!file) return;
                setCover(URL.createObjectURL(file));
                setFileName(file.name);
                event.target.value = "";
              }}
            />
            <Button
              variant="outline"
              size="sm"
              onClick={() => inputRef.current?.click()}
            >
              <ImageUp aria-hidden="true" data-icon="inline-start" />
              {cover ? "Replace" : "Upload"}
            </Button>
            <Button
              variant="ghost"
              size="icon-sm"
              aria-label="Remove cover image"
              disabled={!cover}
              onClick={() => setCover(null)}
            >
              <Trash2 aria-hidden="true" />
            </Button>
          </div>
        </div>
      </div>
    </section>
  );
}

TSX
"use client";

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

import { AspectRatio } from "@/components/ui/aspect-ratio";
import {
  Dialog,
  DialogContent,
  DialogDescription,
  DialogHeader,
  DialogTitle,
} from "@/components/ui/dialog";

const photos = [
  { id: "box", caption: "Outer box, crushed corner" },
  { id: "lamp", caption: "Lamp shade, cracked rim" },
  { id: "base", caption: "Base plate, scratched finish" },
  { id: "label", caption: "Shipping label, order SR-48213" },
  { id: "cable", caption: "Power cable, bent connector" },
];

const visible = photos.slice(0, 3);
const hidden = photos.length - visible.length;

export default function AspectRatio10() {
  const [openIndex, setOpenIndex] = React.useState<number | null>(null);
  // Remember the last photo so the dialog keeps its content while it closes.
  const [lastIndex, setLastIndex] = React.useState(0);
  const shownIndex = openIndex ?? lastIndex;
  const active = photos[shownIndex];

  const openPhoto = (index: number) => {
    setLastIndex(index);
    setOpenIndex(index);
  };

  return (
    <div className="flex w-full max-w-sm flex-col gap-4">
      <div className="flex flex-col items-end gap-1">
        <div className="w-full max-w-64 rounded-2xl rounded-br-md bg-primary p-1 text-primary-foreground">
          <ul aria-label="Attached photos" className="grid grid-cols-2 gap-1">
            {visible.map((photo, index) => {
              const isLast = index === visible.length - 1 && hidden > 0;
              return (
                <li key={photo.id} className={index === 0 ? "col-span-2" : undefined}>
                  <button
                    type="button"
                    onClick={() => openPhoto(index)}
                    aria-label={
                      isLast
                        ? `Open ${photo.caption} and ${hidden} more photos`
                        : `Open ${photo.caption}`
                    }
                    className="block w-full overflow-hidden rounded-xl outline-none focus-visible:ring-3 focus-visible:ring-ring"
                  >
                    <AspectRatio ratio={index === 0 ? 2 / 1 : 1} className="bg-muted">
                      <img
                        src="/placeholder.svg"
                        alt=""
                        className="absolute inset-0 size-full object-cover"
                      />
                      {isLast ? (
                        <span className="absolute inset-0 flex items-center justify-center bg-foreground/60 text-lg font-semibold text-background">
                          +{hidden}
                        </span>
                      ) : null}
                    </AspectRatio>
                  </button>
                </li>
              );
            })}
          </ul>
          <p className="px-2.5 pt-2 pb-1.5 text-sm">
            The lamp arrived like this. Box was already crushed at delivery.
          </p>
        </div>
        <span className="text-xs text-muted-foreground">
          You · 9:41 AM · <Paperclip aria-hidden="true" className="inline size-3" />{" "}
          {photos.length} photos
        </span>
      </div>
      <div className="flex flex-col items-start gap-1">
        <p className="max-w-64 rounded-2xl rounded-bl-md bg-muted px-3 py-2 text-sm">
          Thanks, Daniel. The photos are clear enough to approve a replacement
          without a return. A new lamp ships today.
        </p>
        <span className="text-xs text-muted-foreground">Nora · Support · 9:43 AM</span>
      </div>

      <Dialog
        open={openIndex !== null}
        onOpenChange={(open) => {
          if (!open) setOpenIndex(null);
        }}
      >
        <DialogContent className="sm:max-w-lg">
          <DialogHeader>
            <DialogTitle>{active.caption}</DialogTitle>
            <DialogDescription>
              Photo {shownIndex + 1} of {photos.length} · Attached to
              ticket SR-7730
            </DialogDescription>
          </DialogHeader>
          <AspectRatio ratio={4 / 3} className="overflow-hidden rounded-lg bg-muted">
            <img
              src="/placeholder.svg"
              alt={active.caption}
              className="absolute inset-0 size-full object-contain"
            />
          </AspectRatio>
          <ul aria-label="All photos" className="grid grid-cols-5 gap-2">
            {photos.map((photo, index) => (
              <li key={photo.id}>
                <button
                  type="button"
                  aria-label={photo.caption}
                  aria-current={index === shownIndex ? "true" : undefined}
                  onClick={() => openPhoto(index)}
                  className="block w-full overflow-hidden rounded-md opacity-60 outline-none transition-opacity hover:opacity-100 focus-visible:ring-3 focus-visible:ring-ring/50 aria-[current=true]:opacity-100 aria-[current=true]:ring-2 aria-[current=true]:ring-primary"
                >
                  <AspectRatio ratio={1} className="bg-muted">
                    <img
                      src="/placeholder.svg"
                      alt=""
                      className="absolute inset-0 size-full object-cover"
                    />
                  </AspectRatio>
                </button>
              </li>
            ))}
          </ul>
        </DialogContent>
      </Dialog>
    </div>
  );
}

TSX
"use client";

import { Check, Download, FileText, Film, Trash2, X } from "lucide-react";
import * as React from "react";

import { AspectRatio } from "@/components/ui/aspect-ratio";
import { Button } from "@/components/ui/button";
import { Checkbox } from "@/components/ui/checkbox";

type FileKind = "image" | "video" | "document";

const initialFiles: { id: string; name: string; size: string; kind: FileKind }[] = [
  { id: "hero", name: "spring-hero.png", size: "2.4 MB", kind: "image" },
  { id: "teaser", name: "launch-teaser.mp4", size: "48.1 MB", kind: "video" },
  { id: "brief", name: "campaign-brief.pdf", size: "860 KB", kind: "document" },
  { id: "banner", name: "email-banner.jpg", size: "1.1 MB", kind: "image" },
  { id: "lookbook", name: "lookbook-cover.png", size: "3.7 MB", kind: "image" },
  { id: "copy", name: "product-copy.pdf", size: "212 KB", kind: "document" },
];

const kindIcon = { video: Film, document: FileText };

export default function AspectRatio11() {
  const [files, setFiles] = React.useState(initialFiles);
  const [selected, setSelected] = React.useState<string[]>(["hero", "banner"]);
  const [downloaded, setDownloaded] = React.useState(false);

  // The download confirmation clears itself after a moment.
  React.useEffect(() => {
    if (!downloaded) return;
    const timer = window.setTimeout(() => setDownloaded(false), 2000);
    return () => window.clearTimeout(timer);
  }, [downloaded]);

  const toggle = (id: string, checked: boolean) =>
    setSelected((current) =>
      checked ? [...current, id] : current.filter((value) => value !== id),
    );

  return (
    <section
      aria-label="Spring campaign assets"
      className="w-full max-w-xl rounded-xl border bg-card text-card-foreground"
    >
      <div className="flex min-h-14 items-center justify-between gap-2 border-b px-4 py-2">
        {selected.length > 0 ? (
          <>
            <p className="text-sm font-medium" aria-live="polite">
              {downloaded
                ? `Downloading ${selected.length} ${selected.length === 1 ? "file" : "files"}`
                : `${selected.length} selected`}
            </p>
            <div className="flex gap-1">
              <Button
                variant="ghost"
                size="icon-sm"
                aria-label="Download selected"
                onClick={() => setDownloaded(true)}
              >
                {downloaded ? (
                  <Check aria-hidden="true" />
                ) : (
                  <Download aria-hidden="true" />
                )}
              </Button>
              <Button
                variant="ghost"
                size="icon-sm"
                aria-label="Delete selected"
                onClick={() => {
                  setFiles((current) =>
                    current.filter((file) => !selected.includes(file.id)),
                  );
                  setSelected([]);
                  setDownloaded(false);
                }}
              >
                <Trash2 aria-hidden="true" />
              </Button>
              <Button
                variant="ghost"
                size="icon-sm"
                aria-label="Clear selection"
                onClick={() => {
                  setSelected([]);
                  setDownloaded(false);
                }}
              >
                <X aria-hidden="true" />
              </Button>
            </div>
          </>
        ) : (
          <div>
            <h3 className="text-sm font-medium">
              Spring campaign assets
            </h3>
            <p className="text-xs text-muted-foreground">
              {files.length} files · Shared with Marketing
            </p>
          </div>
        )}
      </div>
      {files.length === 0 ? (
        <div className="flex flex-col items-center gap-3 p-8 text-center">
          <p className="text-sm text-muted-foreground">
            This folder is empty. Drop files here to upload them.
          </p>
          <Button variant="outline" size="sm" onClick={() => setFiles(initialFiles)}>
            Restore files
          </Button>
        </div>
      ) : (
        <ul className="grid grid-cols-2 gap-3 p-4 sm:grid-cols-3">
          {files.map((file) => {
            const checked = selected.includes(file.id);
            const Icon = file.kind === "image" ? null : kindIcon[file.kind];
            const inputId = `aspect-ratio-11-${file.id}`;
            return (
              <li
                key={file.id}
                data-selected={checked || undefined}
                className="group relative rounded-lg border p-1.5 transition-colors hover:bg-muted/50 data-selected:border-primary data-selected:bg-primary/5"
              >
                <AspectRatio ratio={4 / 3} className="overflow-hidden rounded-md bg-muted">
                  {Icon ? (
                    <div className="absolute inset-0 flex items-center justify-center">
                      <Icon aria-hidden="true" className="size-8 text-muted-foreground" />
                    </div>
                  ) : (
                    <img
                      src="/placeholder.svg"
                      alt=""
                      className="absolute inset-0 size-full object-cover"
                    />
                  )}
                  <span className="absolute top-1.5 left-1.5 flex rounded-sm bg-background/90 p-0.5">
                    <Checkbox
                      id={inputId}
                      checked={checked}
                      onCheckedChange={(value) => toggle(file.id, value)}
                    />
                  </span>
                </AspectRatio>
                <label htmlFor={inputId} className="block cursor-pointer px-0.5 pt-1.5">
                  <span className="block truncate text-sm font-medium">{file.name}</span>
                  <span className="block text-xs text-muted-foreground tabular-nums">
                    {file.size}
                  </span>
                </label>
              </li>
            );
          })}
        </ul>
      )}
    </section>
  );
}

TSX
"use client";

import { Check, Heart, MessageCircle, Send } from "lucide-react";
import * as React from "react";

import { AspectRatio } from "@/components/ui/aspect-ratio";
import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar";
import { Button } from "@/components/ui/button";
import { ToggleGroup, ToggleGroupItem } from "@/components/ui/toggle-group";

const crops = [
  { id: "square", label: "Square", ratio: 1, export: "1080 × 1080" },
  { id: "portrait", label: "Portrait", ratio: 4 / 5, export: "1080 × 1350" },
  { id: "landscape", label: "Landscape", ratio: 1.91, export: "1200 × 628" },
];

export default function AspectRatio12() {
  const [cropId, setCropId] = React.useState("portrait");
  // The crop last applied to the post; Reset returns to it.
  const [appliedId, setAppliedId] = React.useState<string | null>(null);
  const baseline = appliedId ?? "portrait";
  const applied = appliedId === cropId;
  const crop = crops.find((option) => option.id === cropId) ?? crops[0];

  return (
    <section
      aria-labelledby="aspect-ratio-12-title"
      className="w-full max-w-sm rounded-xl border bg-card text-card-foreground"
    >
      <div className="grid gap-3 border-b p-4">
        <div className="flex flex-wrap items-baseline justify-between gap-x-2 gap-y-0.5">
          <h3 id="aspect-ratio-12-title" className="whitespace-nowrap font-medium">
            Crop for feed
          </h3>
          <span className="whitespace-nowrap text-xs text-muted-foreground tabular-nums">
            Exports at {crop.export} px
          </span>
        </div>
        <ToggleGroup
          aria-label="Crop ratio"
          variant="outline"
          size="sm"
          spacing={0}
          value={[cropId]}
          onValueChange={(next) => {
            if (next[0]) setCropId(next[0]);
          }}
          className="w-full"
        >
          {crops.map((option) => (
            <ToggleGroupItem key={option.id} value={option.id} className="flex-1">
              {option.label}
            </ToggleGroupItem>
          ))}
        </ToggleGroup>
      </div>
      <div className="bg-muted/40 p-4">
        <figure
          aria-label="Post preview"
          className="mx-auto w-full max-w-72 overflow-hidden rounded-lg border bg-background"
        >
          <div className="flex items-center gap-2 p-2.5">
            <Avatar className="size-7">
              <AvatarImage src="/placeholder.svg" alt="" />
              <AvatarFallback>FH</AvatarFallback>
            </Avatar>
            <div className="text-xs leading-tight">
              <p className="font-medium">fieldhouse.coffee</p>
              <p className="text-muted-foreground">Sponsored</p>
            </div>
          </div>
          <AspectRatio
            ratio={crop.ratio}
            className="overflow-hidden bg-muted transition-[aspect-ratio] duration-300 ease-out motion-reduce:transition-none"
          >
            <img
              src="/placeholder.svg"
              alt="Pour-over coffee on a wooden counter"
              className="absolute inset-0 size-full object-cover"
            />
          </AspectRatio>
          <div className="flex gap-1 px-1.5 pt-1.5" aria-hidden="true">
            <Heart className="m-1 size-4" />
            <MessageCircle className="m-1 size-4" />
            <Send className="m-1 size-4" />
          </div>
          <figcaption className="px-2.5 pt-1 pb-3 text-xs">
            <span className="font-medium">fieldhouse.coffee</span> New Ethiopian
            single origin lands Friday. Bright, floral, a little jammy.
          </figcaption>
        </figure>
      </div>
      <div className="flex justify-end gap-2 border-t p-3">
        <Button
          variant="ghost"
          size="sm"
          disabled={cropId === baseline}
          focusableWhenDisabled
          onClick={() => setCropId(baseline)}
        >
          Reset
        </Button>
        <Button
          size="sm"
          disabled={applied}
          focusableWhenDisabled
          onClick={() => setAppliedId(cropId)}
        >
          {applied ? (
            <>
              <Check aria-hidden="true" data-icon="inline-start" />
              Crop applied
            </>
          ) : (
            "Apply crop"
          )}
        </Button>
      </div>
    </section>
  );
}

TSX
"use client";

import { Check, Clock, MapPin, Navigation } from "lucide-react";
import * as React from "react";

import { AspectRatio } from "@/components/ui/aspect-ratio";
import { Badge } from "@/components/ui/badge";
import { Button } from "@/components/ui/button";

// Pin positions are percentages of the map, so they stay anchored at any width.
const stores = [
  {
    id: "mission",
    name: "Mission District",
    address: "2170 Mission St",
    hours: "Open until 8 PM",
    open: true,
    stock: "12 in stock",
    x: 38,
    y: 62,
  },
  {
    id: "hayes",
    name: "Hayes Valley",
    address: "451 Hayes St",
    hours: "Opens 10 AM",
    open: false,
    stock: "3 in stock",
    x: 30,
    y: 38,
  },
  {
    id: "embarcadero",
    name: "Embarcadero Center",
    address: "4 Embarcadero Ctr",
    hours: "Open until 7 PM",
    open: true,
    stock: "Low stock",
    x: 76,
    y: 24,
  },
];

export default function AspectRatio13() {
  const [activeId, setActiveId] = React.useState("mission");
  const [reservedId, setReservedId] = React.useState<string | null>(null);
  const active = stores.find((store) => store.id === activeId) ?? stores[0];
  const reserved = reservedId === active.id;
  const directionsHref = `https://www.google.com/maps/search/?api=1&query=${encodeURIComponent(`${active.address}, San Francisco, CA`)}`;

  return (
    <section
      aria-labelledby="aspect-ratio-13-title"
      className="w-full max-w-lg overflow-hidden rounded-xl border bg-card text-card-foreground"
    >
      <div className="p-4">
        <h3 id="aspect-ratio-13-title" className="font-medium">
          Pick up in store
        </h3>
        <p className="text-sm text-muted-foreground">
          Trail Runner 4 · Size 10 · Ready in 2 hours
        </p>
      </div>
      <AspectRatio ratio={16 / 9} className="border-y bg-muted">
        <img
          src="/placeholder.svg"
          alt="Map of San Francisco store locations"
          className="absolute inset-0 size-full object-cover opacity-70"
        />
        {stores.map((store) => {
          const selected = store.id === activeId;
          return (
            <button
              key={store.id}
              type="button"
              aria-label={`${store.name} on map`}
              aria-pressed={selected}
              onClick={() => setActiveId(store.id)}
              style={{ left: `${store.x}%`, top: `${store.y}%` }}
              className="absolute flex size-8 -translate-x-1/2 -translate-y-full items-center justify-center rounded-full border bg-background text-foreground shadow-md outline-none transition-transform hover:scale-110 focus-visible:ring-3 focus-visible:ring-ring/50 aria-pressed:z-10 aria-pressed:scale-110 aria-pressed:border-primary aria-pressed:bg-primary aria-pressed:text-primary-foreground"
            >
              <MapPin aria-hidden="true" className="size-4" />
            </button>
          );
        })}
      </AspectRatio>
      <ul aria-label="Nearby stores" className="divide-y">
        {stores.map((store) => {
          const selected = store.id === activeId;
          return (
            <li key={store.id}>
              <button
                type="button"
                aria-pressed={selected}
                onClick={() => setActiveId(store.id)}
                className="flex w-full items-start gap-3 px-4 py-3 text-left outline-none transition-colors hover:bg-muted/60 focus-visible:bg-muted focus-visible:ring-3 focus-visible:ring-ring/50 focus-visible:ring-inset aria-pressed:bg-muted"
              >
                <span
                  aria-hidden="true"
                  className={`mt-1.5 size-2 shrink-0 rounded-full ${selected ? "bg-primary" : "bg-border"}`}
                />
                <span className="min-w-0 flex-1">
                  <span className="block text-sm font-medium">{store.name}</span>
                  <span className="block truncate text-sm text-muted-foreground">
                    {store.address}
                  </span>
                  <span className="mt-1 flex items-center gap-1 text-xs text-muted-foreground">
                    <Clock aria-hidden="true" className="size-3" />
                    {store.hours}
                  </span>
                </span>
                <Badge variant={store.open ? "secondary" : "outline"}>{store.stock}</Badge>
              </button>
            </li>
          );
        })}
      </ul>
      <div className="flex flex-wrap items-center justify-between gap-2 border-t p-4">
        <p className="text-sm" aria-live="polite">
          <span className="text-muted-foreground">
            {reserved ? "Reserved at " : "Pickup at "}
          </span>
          <span className="font-medium">{active.name}</span>
        </p>
        <div className="flex gap-2">
          <Button
            variant="outline"
            size="sm"
            nativeButton={false}
            render={<a href={directionsHref} target="_blank" rel="noreferrer" />}
          >
            <Navigation aria-hidden="true" data-icon="inline-start" />
            Directions
          </Button>
          <Button
            size="sm"
            disabled={!active.open || reserved}
            focusableWhenDisabled
            onClick={() => setReservedId(active.id)}
          >
            {reserved ? (
              <>
                <Check aria-hidden="true" data-icon="inline-start" />
                Reserved
              </>
            ) : active.open ? (
              "Reserve"
            ) : (
              "Closed now"
            )}
          </Button>
        </div>
      </div>
    </section>
  );
}