Signal Fest — digital ticket

<!-- Original layout, SVG/CSS artwork and JavaScript © 2026 XXC Templates. MIT License.
Illustrative sample content and data; no real accounts, purchases or bookings. -->
<main>
  <header class="intro">
    <div>
      <div class="kicker">SIGNAL FEST / TICKET CONCEPT</div>
      <h1>Be part of the frequency.</h1>
      <p>An event checkout interaction without payment or account collection.</p>
    </div>
  </header>
  <section class="ticket">
    <div class="ticket-main">
      <div class="ticket-label">DESIGN × CODE × SOUND</div>
      <h2>SIGNAL<br /><em>FEST_</em></h2>
      <div class="ticket-meta">
        <span>24 OCT / 2026<br />18:00—LATE</span><span>WAREHOUSE 08<br />FICTIONAL VENUE</span>
      </div>
      <div class="barcode" aria-hidden="true"></div>
      <small>CONCEPT ARTWORK / NOT VALID FOR ENTRY</small>
    </div>
    <div class="ticket-stub">
      <span>YOUR TRANSMISSION</span
      ><label
        >Pass<select id="tier">
          <option value="39">General / $39</option>
          <option value="65">Studio / $65</option>
        </select></label
      ><label>Quantity<input id="quantity" type="number" value="1" min="1" max="6" /></label
      ><strong id="total">$39</strong
      ><button id="change" class="primary">Preview reservation ↗</button>
      <p>Demo only. No tickets are issued.</p>
    </div>
  </section>
  <output id="status" class="status" aria-live="polite"></output>
</main>

:root {
  --bg: #100c20;
  --panel: #1b1230;
  --text: #fbecff;
  --muted: #bb9ed3;
  --line: #4a285b;
  --accent: #ff70cc;
}
/* Original XXC Templates Studio collection. MIT; sample data only. */
* {
  box-sizing: border-box;
}
html {
  color-scheme: dark;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font:
    14px/1.6 system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  padding: clamp(18px, 4vw, 40px);
  min-height: 100vh;
}
h1,
h2,
h3,
p {
  margin: 0;
}
h1 {
  font-size: clamp(27px, 4.8vw, 46px);
  line-height: 1.07;
  letter-spacing: -0.055em;
  font-weight: 650;
}
h2 {
  font-size: 22px;
  letter-spacing: -0.025em;
  line-height: 1.2;
}
h3 {
  font-size: 15px;
}
p {
  color: var(--muted);
}
button,
input,
select {
  font: inherit;
}
button,
a,
input,
select,
summary {
  touch-action: manipulation;
}
button {
  cursor: pointer;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 9px 14px;
  font-size: 12px;
}
button:hover {
  border-color: var(--accent);
}
button[aria-pressed="true"],
button.active {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
button:disabled {
  opacity: 0.5;
  cursor: default;
}
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}
a {
  color: inherit;
  text-underline-offset: 4px;
}
input,
select {
  min-width: 0;
  max-width: 100%;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px;
}
input[type="range"] {
  accent-color: var(--accent);
  padding: 0;
}
input[type="checkbox"] {
  accent-color: var(--accent);
}
label {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 12px;
  color: var(--muted);
}
svg {
  max-width: 100%;
  display: block;
}
img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
main {
  max-width: 1120px;
  margin: auto;
  min-width: 0;
}
.kicker {
  text-transform: uppercase;
  letter-spacing: 0.17em;
  font:
    10px/1.6 ui-monospace,
    monospace;
  color: var(--accent);
}
.intro {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  margin-bottom: 25px;
}
.intro h1 {
  margin: 8px 0 10px;
}
.intro p {
  max-width: 470px;
  font-size: 13px;
}
.badge {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 50px;
  padding: 5px 10px;
  font:
    10px ui-monospace,
    monospace;
  color: var(--muted);
}
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
  min-width: 0;
}
.toolbar {
  display: flex;
  gap: 9px;
  flex-wrap: wrap;
  align-items: center;
  margin: 16px 0;
}
.primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 15px;
}
.muted {
  color: var(--muted);
}
.metric {
  font-size: 36px;
  letter-spacing: -0.05em;
  font-weight: 600;
}
.mono {
  font-family: ui-monospace, monospace;
}
.rule {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 20px 0;
}
footer,
.footnote {
  font-size: 10px;
  color: var(--muted);
  margin-top: 18px;
}
.status {
  display: block;
  min-height: 20px;
  margin-top: 10px;
  color: var(--accent);
  font-size: 12px;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}
[hidden] {
  display: none !important;
}
.data-table {
  margin-top: 16px;
  font-size: 11px;
  color: var(--muted);
}
.data-table summary {
  cursor: pointer;
}
.table-scroll {
  overflow: auto;
  max-width: 100%;
}
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 11px;
}
th,
td {
  text-align: left;
  border-bottom: 1px solid var(--line);
  padding: 9px;
  white-space: nowrap;
}
caption {
  text-align: left;
  color: var(--muted);
  padding: 8px 0;
}
.legend {
  display: flex;
  gap: 17px;
  flex-wrap: wrap;
  font-size: 11px;
  color: var(--muted);
}
.legend i {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c);
  margin-right: 6px;
}
dialog {
  max-width: calc(100vw - 36px);
  width: 460px;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 25px;
}
dialog::backdrop {
  background: #000a;
}
dialog p {
  margin: 12px 0;
}
.media-credit {
  font-size: 9px;
  margin-top: 16px;
  color: var(--muted);
}
.stage {
  position: relative;
  min-height: 290px;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
}
@media (max-width: 520px) {
  .intro {
    align-items: flex-start;
    flex-direction: column;
  }
  .grid {
    grid-template-columns: 1fr;
  }
  .panel {
    padding: 17px;
  }
  .toolbar label {
    flex-wrap: wrap;
  }
  .stage {
    min-height: 270px;
  }
  h1 {
    font-size: 32px;
  }
  .intro p {
    font-size: 12px;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *:before,
  *:after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}
html {
  color-scheme: dark;
}
.ticket {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  background: #20122b;
  border: 1px solid #63436f;
  border-radius: 18px;
  overflow: hidden;
}
.ticket-main {
  padding: 28px;
  border-right: 2px dashed #63436f;
  position: relative;
  background: radial-gradient(ellipse at 85% 0, #713c7133, transparent 65%);
}
.ticket-label {
  font:
    9px ui-monospace,
    monospace;
  letter-spacing: 2px;
  color: #dbaaec;
}
.ticket h2 {
  font-size: clamp(48px, 8vw, 78px);
  line-height: 0.85;
  font-weight: 900;
  letter-spacing: -4px;
  margin: 28px 0;
  color: #f1e1ff;
}
.ticket h2 em {
  font-style: normal;
  color: #ff81cc;
  text-shadow: 3px 2px #754de055;
}
.ticket-meta {
  display: flex;
  gap: 40px;
  font:
    9px/1.8 ui-monospace,
    monospace;
  color: #c6a9d6;
}
.barcode {
  height: 24px;
  max-width: 250px;
  margin-top: 26px;
  background: repeating-linear-gradient(
    90deg,
    #d6b1e6 0 2px,
    transparent 2px 5px,
    #d6b1e6 5px 6px,
    transparent 6px 10px,
    #d6b1e6 10px 14px,
    transparent 14px 17px
  );
}
.ticket-main small {
  display: block;
  font:
    6px ui-monospace,
    monospace;
  letter-spacing: 1px;
  margin-top: 9px;
  color: #a58bb8;
}
.ticket-stub {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.ticket-stub > span {
  font:
    8px ui-monospace,
    monospace;
  color: #c49fda;
  letter-spacing: 1px;
}
.ticket-stub label {
  flex-direction: column;
  align-items: stretch;
  font-size: 10px;
}
.ticket-stub strong {
  font-size: 42px;
  font-weight: 500;
  letter-spacing: -2px;
}
.ticket-stub p {
  font-size: 9px;
}
.ticket-stub button {
  font-size: 10px;
}
@media (max-width: 520px) {
  .ticket {
    grid-template-columns: 1fr;
  }
  .ticket-main {
    border-right: 0;
    border-bottom: 2px dashed #63436f;
  }
  .ticket-stub {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  .ticket-stub > span,
  .ticket-stub > button,
  .ticket-stub > p {
    grid-column: 1/-1;
  }
}

(() => {
  "use strict";
  const $ = (s) => document.querySelector(s),
    $$ = (s) => [...document.querySelectorAll(s)],
    status = (t) => {
      const el = $("#status");
      if (el) el.textContent = t;
    },
    clamp = (n, a, b) => Math.max(a, Math.min(b, n));
  const reduced = matchMedia("(prefers-reduced-motion: reduce)").matches;
  const ns = "http://www.w3.org/2000/svg";
  function svg(tag, attrs = {}, text) {
    const el = document.createElementNS(ns, tag);
    for (const [k, v] of Object.entries(attrs)) el.setAttribute(k, String(v));
    if (text !== undefined) el.textContent = text;
    return el;
  }
  function table(headers, rows) {
    const t = $("#data-table");
    if (!t) return;
    t.replaceChildren();
    const caption = document.createElement("caption");
    caption.textContent = "Illustrative sample data";
    t.append(caption);
    const head = t.createTHead().insertRow();
    headers.forEach((v) => {
      const th = document.createElement("th");
      th.scope = "col";
      th.textContent = v;
      head.append(th);
    });
    const body = t.createTBody();
    rows.forEach((row) => {
      const r = body.insertRow();
      row.forEach((v) => (r.insertCell().textContent = String(v)));
    });
  }
  function selectButtons(selector, callback) {
    $$(selector).forEach((b) =>
      b.addEventListener("click", () => {
        $$(selector).forEach((x) => x.setAttribute("aria-pressed", String(x === b)));
        callback(b);
      }),
    );
  }

  function update() {
    const n = clamp(Number($("#quantity").value) || 1, 1, 6),
      price = Number($("#tier").value);
    $("#total").textContent = "$" + n * price;
    return n;
  }
  $("#quantity").addEventListener("input", update);
  $("#quantity").addEventListener("change", () => ($("#quantity").value = update()));
  $("#tier").addEventListener("change", update);
  $("#change").addEventListener("click", () => {
    const n = update();
    $("#quantity").value = n;
    status(
      n +
        " " +
        (Number($("#tier").value) === 39 ? "General" : "Studio") +
        " pass" +
        (n === 1 ? "" : "es") +
        " / " +
        $("#total").textContent +
        ". Demo preview only — no ticket was issued.",
    );
  });
})();