UIコンポーネント簡単

Comics — Issue Cover Page

A bold comic-book issue cover for the fictional Neon Ronin #42, built entirely in HTML and CSS. A 3D outlined Bangers logo, publisher line, and accent tagline sit over a halftone sky with conic speed lines and a CSS-drawn caped hero scene, while a rotated issue badge, cover-artist credit, price block, and a striped barcode finish the trade dress. A variant switcher flips between Standard, Midnight Foil, and Gold incentive editions, swapping accent color, tagline, and treatment, plus a save-to-collection toggle with toast feedback.

Labで開く

html css vanilla-js

ターゲット: JS HTML

コード

:root {
  --ink: #0e0e12;
  --ink-2: #23232b;
  --paper: #fdfcf7;
  --panel: #ffffff;
  --accent: #ff2e4d;
  --accent-2: #ffd23f;
  --accent-blue: #2e6bff;
  --muted: #6b6b78;
  --line: rgba(14, 14, 18, 0.14);
  --line-2: rgba(14, 14, 18, 0.28);
  --halftone: radial-gradient(circle, rgba(14, 14, 18, 0.18) 1px, transparent 1.6px);
  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 18px;

  /* per-edition tokens (overridden on .cover[data-variant]) */
  --sky-1: #2e6bff;
  --sky-2: #7fb0ff;
  --edge: var(--ink);
  --foil: transparent;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", system-ui, sans-serif;
  line-height: 1.5;
  color: var(--ink);
  background-color: var(--paper);
  background-image: var(--halftone);
  background-size: 6px 6px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  justify-content: center;
  padding: 28px 18px 48px;
}

.stage {
  width: 100%;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* ---------- toolbar ---------- */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
}

.toolbar__group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.variant {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 11px;
  font: 600 12.5px/1 "Inter", sans-serif;
  letter-spacing: 0.01em;
  background: var(--panel);
  color: var(--ink);
  border: 2px solid var(--ink);
  border-radius: var(--r-sm);
  box-shadow: 2px 2px 0 var(--ink);
  cursor: pointer;
  transition: transform 0.08s ease, box-shadow 0.08s ease, background 0.12s ease;
}

.variant:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 var(--ink);
}

.variant:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 var(--ink);
}

.variant:focus-visible {
  outline: 3px solid var(--accent-blue);
  outline-offset: 2px;
}

.variant.is-active {
  background: var(--accent-2);
  box-shadow: 3px 3px 0 var(--ink);
}

.variant__swatch {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 2px solid var(--ink);
  background: var(--accent);
}

.variant[data-variant="midnight"] .variant__swatch {
  background: #9b6bff;
}

.variant[data-variant="goldfoil"] .variant__swatch {
  background: linear-gradient(135deg, #ffd23f, #f59e0b);
}

.collect {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 12px;
  font: 700 12.5px/1 "Inter", sans-serif;
  background: var(--ink);
  color: var(--paper);
  border: 2px solid var(--ink);
  border-radius: var(--r-sm);
  box-shadow: 2px 2px 0 var(--accent);
  cursor: pointer;
  transition: transform 0.08s ease, box-shadow 0.08s ease, background 0.12s ease, color 0.12s ease;
}

.collect:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 var(--accent);
}

.collect:focus-visible {
  outline: 3px solid var(--accent-blue);
  outline-offset: 2px;
}

.collect__icon {
  font-size: 15px;
  line-height: 1;
}

.collect[aria-pressed="true"] {
  background: var(--accent-2);
  color: var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
}

.collect[aria-pressed="true"] .collect__icon {
  color: var(--accent);
  text-shadow: 0 0 0 var(--accent);
}

/* ---------- cover ---------- */
.cover {
  position: relative;
  aspect-ratio: 2 / 3;
  border: 3px solid var(--ink);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--panel);
  box-shadow: 7px 7px 0 var(--ink);
  isolation: isolate;
}

.cover.is-flipping {
  animation: flipIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

@keyframes flipIn {
  0% {
    transform: perspective(1100px) rotateY(-82deg) scale(0.94);
    opacity: 0;
  }
  60% {
    opacity: 1;
  }
  100% {
    transform: perspective(1100px) rotateY(0deg) scale(1);
    opacity: 1;
  }
}

/* sky / background */
.cover__sky {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(180deg, var(--sky-1) 0%, var(--sky-2) 62%, var(--paper) 100%);
}

.halftone {
  position: absolute;
  inset: 0;
  background-image: var(--halftone);
  background-size: 6px 6px;
  opacity: 0.5;
  mask-image: linear-gradient(180deg, #000 0%, transparent 70%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 70%);
}

.sun {
  position: absolute;
  top: 16%;
  left: 50%;
  width: 130px;
  height: 130px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-2) 0%, var(--accent-2) 55%, transparent 60%);
  opacity: 0.92;
}

.speedlines {
  position: absolute;
  inset: -20%;
  background: repeating-conic-gradient(
    from 0deg at 50% 30%,
    rgba(255, 255, 255, 0.42) 0deg 1.4deg,
    transparent 1.4deg 7deg
  );
  mask-image: radial-gradient(circle at 50% 30%, transparent 22%, #000 60%);
  -webkit-mask-image: radial-gradient(circle at 50% 30%, transparent 22%, #000 60%);
  opacity: 0.55;
}

/* ---------- CSS hero scene ---------- */
.scene {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.scene__skyline {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 23%;
  height: 26%;
  background:
    linear-gradient(var(--ink-2), var(--ink-2)) 8% 100% / 12% 60% no-repeat,
    linear-gradient(var(--ink-2), var(--ink-2)) 22% 100% / 9% 85% no-repeat,
    linear-gradient(var(--ink-2), var(--ink-2)) 34% 100% / 14% 45% no-repeat,
    linear-gradient(var(--ink-2), var(--ink-2)) 70% 100% / 11% 72% no-repeat,
    linear-gradient(var(--ink-2), var(--ink-2)) 84% 100% / 13% 52% no-repeat;
  opacity: 0.85;
}

.scene__ground {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 23%;
  background: var(--ink);
  border-top: 3px solid var(--ink);
}

.scene__hero {
  position: absolute;
  left: 50%;
  bottom: 21%;
  width: 130px;
  height: 230px;
  transform: translateX(-50%);
}

.hero__cape {
  position: absolute;
  left: 50%;
  top: 38px;
  width: 120px;
  height: 150px;
  transform: translateX(-52%) rotate(-3deg);
  background: var(--accent);
  border: 3px solid var(--ink);
  clip-path: polygon(50% 0, 100% 18%, 86% 100%, 50% 78%, 14% 100%, 0 18%);
}

.hero__body {
  position: absolute;
  left: 50%;
  top: 70px;
  width: 64px;
  height: 120px;
  transform: translateX(-50%);
  background: var(--ink);
  border: 3px solid var(--ink);
  border-radius: 14px 14px 4px 4px;
  clip-path: polygon(22% 0, 78% 0, 100% 60%, 80% 100%, 20% 100%, 0 60%);
}

.hero__head {
  position: absolute;
  left: 50%;
  top: 34px;
  width: 46px;
  height: 52px;
  transform: translateX(-50%);
  background: #d9b48f;
  border: 3px solid var(--ink);
  border-radius: 48% 48% 42% 42%;
}

.hero__visor {
  position: absolute;
  left: 50%;
  top: 50px;
  width: 46px;
  height: 13px;
  transform: translateX(-50%);
  background: var(--accent-blue);
  border: 3px solid var(--ink);
  border-radius: 3px;
  box-shadow: 0 0 10px var(--accent-blue);
}

.hero__blade {
  position: absolute;
  left: 96px;
  top: 8px;
  width: 9px;
  height: 150px;
  background: linear-gradient(180deg, #fff, var(--accent-2));
  border: 2px solid var(--ink);
  border-radius: 4px;
  transform: rotate(20deg);
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.6);
}

/* ---------- SFX ---------- */
.sfx {
  position: absolute;
  z-index: 2;
  font-family: "Bangers", system-ui, sans-serif;
  text-transform: uppercase;
  color: var(--accent-2);
  -webkit-text-stroke: 2px var(--ink);
  text-shadow: 3px 3px 0 var(--ink);
  pointer-events: none;
  line-height: 0.9;
}

.sfx--a {
  top: 30%;
  left: 6%;
  font-size: 38px;
  transform: rotate(-9deg);
}

.sfx--b {
  top: 46%;
  right: 5%;
  font-size: 28px;
  color: var(--paper);
  transform: rotate(7deg);
}

/* ---------- masthead ---------- */
.masthead {
  position: absolute;
  z-index: 3;
  top: 16px;
  left: 16px;
  right: 16px;
  text-align: center;
}

.publisher {
  margin: 0;
  font: 800 11px/1 "Inter", sans-serif;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--paper);
  text-shadow: 1px 1px 0 var(--ink);
}

.logo {
  margin: 2px 0 4px;
  font-family: "Bangers", system-ui, sans-serif;
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 0.82;
  text-transform: uppercase;
}

.logo__line {
  display: block;
  color: var(--paper);
  -webkit-text-stroke: 3px var(--ink);
  text-shadow:
    4px 4px 0 var(--ink),
    6px 6px 0 var(--accent);
}

.logo__line--1 {
  font-size: 56px;
}

.logo__line--2 {
  font-size: 74px;
  color: var(--accent);
  text-shadow:
    4px 4px 0 var(--ink),
    6px 6px 0 var(--paper);
}

.tagline {
  margin: 6px auto 0;
  max-width: 80%;
  font: 700 12px/1.25 "Inter", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink);
  background: var(--accent-2);
  border: 2px solid var(--ink);
  border-radius: var(--r-sm);
  padding: 4px 8px;
  box-shadow: 2px 2px 0 var(--ink);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

/* ---------- issue badge ---------- */
.issue {
  position: absolute;
  z-index: 3;
  top: 14px;
  right: 14px;
  width: 78px;
  height: 78px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  transform: rotate(-8deg);
  font-family: "Bangers", system-ui, sans-serif;
}

.issue__hash {
  position: absolute;
  top: 13px;
  left: 16px;
  font-size: 20px;
}

.issue__num {
  font-size: 40px;
  line-height: 1;
  -webkit-text-stroke: 1px var(--ink);
}

.issue__band {
  position: absolute;
  bottom: -8px;
  font: 800 8px/1 "Inter", sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--ink);
  color: var(--accent-2);
  padding: 3px 6px;
  border-radius: 999px;
  white-space: nowrap;
}

/* ---------- bottom strip ---------- */
.strip {
  position: absolute;
  z-index: 3;
  left: 0;
  right: 0;
  bottom: 0;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "credit price"
    "barcode barcode";
  gap: 8px 12px;
  align-items: end;
  padding: 12px 14px 14px;
  background: var(--paper);
  border-top: 3px solid var(--ink);
}

.credit {
  grid-area: credit;
  display: flex;
  flex-direction: column;
}

.credit__role {
  font: 700 9px/1 "Inter", sans-serif;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.credit__name {
  font: 800 14px/1.1 "Inter", sans-serif;
  color: var(--ink);
}

.price {
  grid-area: price;
  display: flex;
  align-items: baseline;
  gap: 3px;
  font-family: "Bangers", system-ui, sans-serif;
  color: var(--ink);
}

.price__cur {
  font-size: 16px;
}

.price__val {
  font-size: 24px;
  line-height: 1;
}

.price__rating {
  align-self: flex-end;
  margin-left: 6px;
  font: 800 8px/1 "Inter", sans-serif;
  letter-spacing: 0.06em;
  color: var(--paper);
  background: var(--ink);
  border-radius: var(--r-sm);
  padding: 3px 5px;
}

.barcode {
  grid-area: barcode;
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 34px;
  padding: 4px 8px 0;
  border: 2px solid var(--ink);
  border-radius: var(--r-sm);
  background: var(--panel);
}

.barcode span {
  display: block;
  width: 3px;
  height: 24px;
  background: var(--ink);
}

.barcode span:nth-child(2n) {
  width: 2px;
  height: 20px;
}

.barcode span:nth-child(3n) {
  width: 4px;
  height: 26px;
}

.barcode span:nth-child(5n) {
  width: 2px;
  height: 16px;
}

.barcode small {
  margin-left: auto;
  align-self: flex-end;
  font: 600 9px/1 "Inter", sans-serif;
  letter-spacing: 0.06em;
  color: var(--ink);
}

.hint {
  margin: 0;
  text-align: center;
  font-size: 12.5px;
  color: var(--muted);
}

/* ---------- foil overlay (variants) ---------- */
.cover::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 4;
  pointer-events: none;
  background: var(--foil);
  mix-blend-mode: screen;
  opacity: 0.6;
}

/* ---------- EDITION TOKENS ---------- */
.cover[data-variant="standard"] {
  --sky-1: #2e6bff;
  --sky-2: #9cc0ff;
  --foil: transparent;
}

.cover[data-variant="midnight"] {
  --sky-1: #1b1640;
  --sky-2: #4b2f8c;
  --accent: #9b6bff;
  --accent-2: #5ce1ff;
  --foil: linear-gradient(120deg, transparent 30%, rgba(92, 225, 255, 0.35) 50%, transparent 70%);
}

.cover[data-variant="goldfoil"] {
  --sky-1: #b8860b;
  --sky-2: #ffd23f;
  --accent: #d4302a;
  --accent-2: #fff3b0;
  --foil: linear-gradient(120deg, transparent 25%, rgba(255, 220, 120, 0.55) 50%, transparent 75%);
}

/* ---------- responsive ---------- */
@media (max-width: 520px) {
  body {
    padding: 18px 12px 36px;
  }

  .toolbar {
    justify-content: center;
  }

  .collect {
    flex: 1 1 100%;
    justify-content: center;
  }

  .logo__line--1 {
    font-size: 46px;
  }

  .logo__line--2 {
    font-size: 60px;
  }

  .sfx--a {
    font-size: 30px;
  }

  .issue {
    width: 64px;
    height: 64px;
  }

  .issue__num {
    font-size: 32px;
  }
}

/* ---------- toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%) translateY(140%);
  z-index: 50;
  max-width: 90vw;
  padding: 10px 16px;
  font: 700 13px/1.3 "Inter", sans-serif;
  color: var(--paper);
  background: var(--ink);
  border: 2px solid var(--ink);
  border-radius: var(--r-sm);
  box-shadow: 4px 4px 0 var(--accent);
  opacity: 0;
  transition: transform 0.32s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.32s ease;
}

.toast.is-show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .cover.is-flipping {
    animation: none;
  }

  .toast {
    transition: opacity 0.2s ease;
  }
}

(function () {
  "use strict";

  var cover = document.getElementById("cover");
  var tagline = document.getElementById("tagline");
  var artist = document.getElementById("artist");
  var collectBtn = document.getElementById("collect");
  var variantBtns = Array.prototype.slice.call(document.querySelectorAll(".variant"));
  var toastEl = document.getElementById("toast");

  // ---- edition data ----
  var EDITIONS = {
    standard: {
      label: "Standard Edition",
      tagline: "No master. No mercy. One last blade.",
      artist: "R. Tanaka & L. Vega",
    },
    midnight: {
      label: "Midnight Foil Variant",
      tagline: "When the neon dies, the ronin rises.",
      artist: "Kira Sol · Midnight Foil",
    },
    goldfoil: {
      label: "1:25 Gold Incentive",
      tagline: "The legend, struck in 24-karat ink.",
      artist: "Dario Quell · 1:25 Incentive",
    },
  };

  // ---- toast helper ----
  var toastTimer;
  function toast(msg) {
    if (!toastEl) return;
    toastEl.textContent = msg;
    toastEl.classList.add("is-show");
    clearTimeout(toastTimer);
    toastTimer = setTimeout(function () {
      toastEl.classList.remove("is-show");
    }, 2200);
  }

  // ---- variant switching ----
  var reduceMotion =
    window.matchMedia && window.matchMedia("(prefers-reduced-motion: reduce)").matches;

  function setVariant(key) {
    var data = EDITIONS[key];
    if (!data || cover.getAttribute("data-variant") === key) return;

    cover.setAttribute("data-variant", key);

    // swap tagline + credit with a quick fade
    tagline.style.opacity = "0";
    tagline.style.transform = "translateY(-4px)";
    setTimeout(function () {
      tagline.textContent = data.tagline;
      artist.textContent = data.artist;
      tagline.style.opacity = "";
      tagline.style.transform = "";
    }, 180);

    // flip-in animation
    if (!reduceMotion) {
      cover.classList.remove("is-flipping");
      // force reflow so the animation can replay
      void cover.offsetWidth;
      cover.classList.add("is-flipping");
    }

    // sync radio buttons
    variantBtns.forEach(function (b) {
      var active = b.getAttribute("data-variant") === key;
      b.classList.toggle("is-active", active);
      b.setAttribute("aria-checked", active ? "true" : "false");
    });

    toast("Now showing: " + data.label);
  }

  cover.addEventListener("animationend", function () {
    cover.classList.remove("is-flipping");
  });

  variantBtns.forEach(function (btn) {
    btn.addEventListener("click", function () {
      setVariant(btn.getAttribute("data-variant"));
    });
  });

  // keyboard: left/right arrows move between editions in the radiogroup
  var group = document.querySelector(".toolbar__group");
  if (group) {
    group.addEventListener("keydown", function (e) {
      var keys = ["ArrowRight", "ArrowDown", "ArrowLeft", "ArrowUp"];
      if (keys.indexOf(e.key) === -1) return;
      e.preventDefault();
      var idx = variantBtns.indexOf(document.activeElement);
      if (idx === -1) idx = 0;
      var dir = e.key === "ArrowRight" || e.key === "ArrowDown" ? 1 : -1;
      var next = (idx + dir + variantBtns.length) % variantBtns.length;
      variantBtns[next].focus();
      setVariant(variantBtns[next].getAttribute("data-variant"));
    });
  }

  // ---- save to collection toggle ----
  var saved = false;
  collectBtn.addEventListener("click", function () {
    saved = !saved;
    collectBtn.setAttribute("aria-pressed", saved ? "true" : "false");
    collectBtn.querySelector(".collect__text").textContent = saved
      ? "In your collection"
      : "Save to collection";
    var edition = EDITIONS[cover.getAttribute("data-variant")];
    toast(
      saved
        ? "Added Neon Ronin #42 (" + edition.label + ") to your pull list ★"
        : "Removed from your pull list"
    );
  });
})();

<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <title>Neon Ronin #42 — Issue Cover Page</title>
    <link rel="preconnect" href="https://fonts.googleapis.com" />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
    <link
      href="https://fonts.googleapis.com/css2?family=Bangers&family=Inter:wght@400;500;600;700;800&display=swap"
      rel="stylesheet"
    />
    <link rel="stylesheet" href="style.css" />
  </head>
  <body>
    <main class="stage">
      <!-- Variant + actions toolbar -->
      <section class="toolbar" aria-label="Cover editions">
        <div class="toolbar__group" role="radiogroup" aria-label="Variant cover">
          <button class="variant is-active" type="button" data-variant="standard" role="radio" aria-checked="true">
            <span class="variant__swatch" aria-hidden="true"></span>
            <span class="variant__label">Standard</span>
          </button>
          <button class="variant" type="button" data-variant="midnight" role="radio" aria-checked="false">
            <span class="variant__swatch" aria-hidden="true"></span>
            <span class="variant__label">Midnight Foil</span>
          </button>
          <button class="variant" type="button" data-variant="goldfoil" role="radio" aria-checked="false">
            <span class="variant__swatch" aria-hidden="true"></span>
            <span class="variant__label">1:25 Gold</span>
          </button>
        </div>
        <button class="collect" type="button" id="collect" aria-pressed="false">
          <span class="collect__icon" aria-hidden="true">★</span>
          <span class="collect__text">Save to collection</span>
        </button>
      </section>

      <!-- The cover -->
      <article class="cover" id="cover" data-variant="standard" aria-label="Comic issue cover, Neon Ronin issue 42">
        <div class="cover__sky" aria-hidden="true">
          <span class="speedlines"></span>
          <span class="halftone"></span>
          <span class="sun"></span>
        </div>

        <!-- CSS-drawn hero scene -->
        <div class="scene" aria-hidden="true">
          <span class="scene__skyline"></span>
          <span class="scene__hero">
            <span class="hero__cape"></span>
            <span class="hero__body"></span>
            <span class="hero__head"></span>
            <span class="hero__visor"></span>
            <span class="hero__blade"></span>
          </span>
          <span class="scene__ground"></span>
        </div>

        <!-- SFX lettering -->
        <span class="sfx sfx--a" aria-hidden="true">KRAKOOM</span>
        <span class="sfx sfx--b" aria-hidden="true">VWOOSH</span>

        <!-- Top masthead -->
        <header class="masthead">
          <p class="publisher">Vanguard Comics</p>
          <h1 class="logo">
            <span class="logo__line logo__line--1">Neon</span>
            <span class="logo__line logo__line--2">Ronin</span>
          </h1>
          <p class="tagline" id="tagline">No master. No mercy. One last blade.</p>
        </header>

        <!-- Issue badge -->
        <div class="issue" aria-label="Issue number 42">
          <span class="issue__hash">#</span><span class="issue__num">42</span>
          <span class="issue__band">SEASON FINALE</span>
        </div>

        <!-- Bottom strip: credit + price + barcode -->
        <footer class="strip">
          <div class="credit">
            <span class="credit__role">Cover by</span>
            <span class="credit__name" id="artist">R. Tanaka &amp; L. Vega</span>
          </div>
          <div class="price">
            <span class="price__cur">$</span><span class="price__val">4.99</span>
            <span class="price__rating">T+ TEEN</span>
          </div>
          <div class="barcode" aria-label="Barcode">
            <span></span><span></span><span></span><span></span><span></span>
            <span></span><span></span><span></span><span></span><span></span>
            <span></span><span></span><span></span><span></span>
            <small>0 71486 04299 4</small>
          </div>
        </footer>
      </article>

      <p class="hint">Pick an edition above to swap the cover treatment, or save it to your pull list.</p>
    </main>

    <div class="toast" id="toast" role="status" aria-live="polite"></div>
    <script src="script.js"></script>
  </body>
</html>

Issue Cover Page

A full single-issue comic cover for the fictional Neon Ronin #42, art-directed in classic newsstand trade dress. The masthead stacks a spaced-out publisher line above an oversized Bangers logo with a layered ink-and-accent 3D outline, finished with an uppercase tagline set on a yellow Ben-Day plate. Behind it, a gradient sky carries a conic-gradient burst of speed lines, a halftone dot wash, and a CSS-drawn hero — caped, visored, blade raised — standing on an inked skyline, with hand-lettered KRAKOOM and VWOOSH SFX punching across the art.

The lower trade dress is all detail: a rotated #42 issue badge with a “Season Finale” band, a cover-artist credit, a Bangers price block with a rating chip, and a striped barcode with a fictional UPC. Everything sits inside a thick ink border with a hard offset drop-shadow, so the whole thing reads like a book you could pull off a spinner rack.

The toolbar drives three variant covers — Standard, Midnight Foil, and a 1:25 Gold incentive — and selecting one re-themes the accent palette, swaps the tagline and artist credit, lays a foil sheen over the art, and plays a perspective flip-in. The control is a keyboard-navigable radio group (arrow keys move and switch editions), and a Save to collection button toggles your pull-list state with a star and toast confirmation. Motion respects prefers-reduced-motion.

Illustrative UI only — fictional series, characters, and data.