POS Quick Order Pad

:root {
  --cream: #f5f0e8;
  --cream-2: #ece4d4;
  --bone: #faf7f1;
  --terracotta: #c1714a;
  --terracotta-d: #a05a38;
  --forest: #2d4a3e;
  --forest-d: #1e3329;
  --gold: #c9a84c;
  --gold-light: #e6c97a;
  --ink: #2c1a0e;
  --ink-2: #4a3828;
  --warm-gray: #7a6a58;
  --success: #4f7a3a;
  --danger: #b3432a;
  --warning: #d99020;
  --font-display: "Playfair Display", Georgia, serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --shadow-1: 0 1px 2px rgba(44, 26, 14, 0.08), 0 2px 6px rgba(44, 26, 14, 0.06);
  --shadow-2: 0 8px 24px rgba(44, 26, 14, 0.12);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  height: 100%;
  overflow: hidden;
}
body {
  font-family: var(--font-body);
  background: var(--cream);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

.pos {
  height: 100vh;
  display: grid;
  grid-template-columns: 180px 1fr 340px;
}

/* ── Categories sidebar ── */
.cats {
  background: var(--forest);
  color: var(--bone);
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--forest-d);
}
.cats-head {
  padding: 18px 16px;
  border-bottom: 1px solid rgba(250, 247, 241, 0.12);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.005em;
}
.terminal {
  font-size: 0.7rem;
  color: var(--gold-light);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.cats-list {
  flex: 1;
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
}
.cat-btn {
  background: transparent;
  border: none;
  color: var(--bone);
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  text-align: left;
  padding: 14px 14px;
  border-radius: var(--r-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: background 0.15s, color 0.15s;
}
.cat-btn:hover {
  background: rgba(250, 247, 241, 0.08);
}
.cat-btn.is-active {
  background: var(--bone);
  color: var(--forest-d);
}
.cat-icon {
  font-size: 1.2rem;
}
.cat-btn.is-active .cat-icon {
  filter: none;
}
.cats-foot {
  padding: 12px;
  border-top: 1px solid rgba(250, 247, 241, 0.12);
  display: flex;
  gap: 8px;
}
.util-btn {
  flex: 1;
  background: rgba(250, 247, 241, 0.08);
  border: 1px solid rgba(250, 247, 241, 0.18);
  color: var(--bone);
  border-radius: var(--r-sm);
  padding: 10px 6px;
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.util-btn:hover {
  background: rgba(250, 247, 241, 0.16);
}

/* ── Grid centre ── */
.grid-wrap {
  background: var(--cream);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.grid-head {
  padding: 18px 22px 12px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid rgba(44, 26, 14, 0.08);
}
.grid-head h1 {
  font-family: var(--font-display, var(--font-body));
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.grid-hint {
  font-size: 0.78rem;
  color: var(--warm-gray);
  font-style: italic;
}
.grid {
  flex: 1;
  overflow-y: auto;
  padding: 18px 22px 24px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
  align-content: start;
}
.tile {
  background: var(--bone);
  border: 1px solid rgba(44, 26, 14, 0.08);
  border-radius: var(--r-md);
  padding: 14px 12px;
  cursor: pointer;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 96px;
  font-family: inherit;
  color: var(--ink);
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
}
.tile:hover {
  border-color: var(--terracotta);
  background: var(--bone);
}
.tile:active {
  transform: scale(0.97);
  background: var(--cream-2);
}
.tile.is-flash {
  animation: flash 0.45s ease;
}
@keyframes flash {
  0% {
    background: var(--gold);
    border-color: var(--gold);
  }
  100% {
    background: var(--bone);
    border-color: rgba(44, 26, 14, 0.08);
  }
}
.tile-name {
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.005em;
}
.tile-price {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--terracotta-d);
  margin-top: auto;
}

/* ── Ticket sidebar ── */
.ticket {
  background: var(--bone);
  border-left: 1px solid rgba(44, 26, 14, 0.1);
  display: flex;
  flex-direction: column;
}
.ticket-head {
  padding: 18px 18px 12px;
  border-bottom: 1px dashed rgba(44, 26, 14, 0.2);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.ticket-table {
  font-family: var(--font-display, var(--font-body));
  font-weight: 800;
  font-size: 1.2rem;
}
.ticket-meta {
  font-size: 0.75rem;
  color: var(--warm-gray);
  margin-top: 2px;
}
.clear-btn {
  background: transparent;
  border: 1px solid rgba(44, 26, 14, 0.16);
  border-radius: 999px;
  padding: 6px 12px;
  font-family: inherit;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--warm-gray);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.clear-btn:hover {
  border-color: var(--danger);
  color: var(--danger);
}

.lines {
  flex: 1;
  overflow-y: auto;
  list-style: none;
  padding: 8px 18px;
}
.line {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(44, 26, 14, 0.06);
  animation: lineIn 0.15s ease;
}
.line:last-child {
  border-bottom: none;
}
@keyframes lineIn {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.line-qty {
  display: inline-flex;
  align-items: center;
  background: var(--cream);
  border: 1px solid rgba(44, 26, 14, 0.12);
  border-radius: 999px;
  padding: 2px;
  gap: 2px;
}
.line-qty button {
  width: 26px;
  height: 26px;
  border-radius: 999px;
  border: none;
  background: transparent;
  color: var(--ink-2);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  display: grid;
  place-items: center;
  line-height: 1;
}
.line-qty button:hover {
  background: var(--cream-2);
  color: var(--terracotta-d);
}
.line-qty span {
  min-width: 22px;
  text-align: center;
  font-weight: 700;
  font-size: 0.86rem;
  font-variant-numeric: tabular-nums;
}
.line-name {
  flex: 1;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink);
}
.line-price {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.empty {
  text-align: center;
  font-style: italic;
  color: var(--warm-gray);
  padding: 32px 18px;
  font-size: 0.88rem;
}

.ticket-foot {
  padding: 14px 18px 18px;
  border-top: 1px solid rgba(44, 26, 14, 0.1);
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--cream);
}
.totals {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.total-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--ink-2);
}
.total-row span:last-child {
  font-family: var(--font-mono);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.total-row--big {
  margin-top: 4px;
  padding-top: 8px;
  border-top: 1px solid rgba(44, 26, 14, 0.16);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
}
.total-row--big span:last-child {
  font-size: 1.2rem;
}

.actions {
  display: flex;
  gap: 8px;
}
.ghost {
  background: transparent;
  border: 1px solid rgba(44, 26, 14, 0.18);
  color: var(--ink-2);
  border-radius: 999px;
  padding: 12px 16px;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}
.ghost:hover {
  background: var(--cream-2);
  color: var(--ink);
}
.primary {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: var(--forest);
  color: var(--bone);
  border: none;
  border-radius: 999px;
  padding: 12px 18px;
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s;
}
.primary:hover:not(:disabled) {
  background: var(--forest-d);
}
.primary:disabled {
  background: var(--warm-gray);
  cursor: not-allowed;
  opacity: 0.7;
}
.pay-total {
  font-family: var(--font-mono);
  font-weight: 700;
  background: rgba(250, 247, 241, 0.18);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.85rem;
}

/* ── Smaller terminals ── */
@media (max-width: 900px) {
  .pos {
    grid-template-columns: 140px 1fr 300px;
  }
}
@media (max-width: 720px) {
  .pos {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
    height: auto;
  }
  html,
  body {
    overflow: auto;
  }
  .cats {
    flex-direction: row;
    border-right: none;
    border-bottom: 1px solid var(--forest-d);
  }
  .cats-head {
    display: none;
  }
  .cats-list {
    flex-direction: row;
    flex-wrap: wrap;
    padding: 10px;
  }
  .cats-foot {
    display: none;
  }
  .ticket {
    border-left: none;
    border-top: 1px solid rgba(44, 26, 14, 0.1);
  }
}

const TAX_RATE = 0.0825;

const MENU = {
  entradas: {
    title: "Entradas",
    icon: "🥖",
    items: [
      { id: "pan", name: "Pan masa madre", price: 8 },
      { id: "burrata", name: "Burrata", price: 16 },
      { id: "pulpo", name: "Pulpo brasa", price: 19 },
      { id: "croquetas", name: "Croquetas jamón", price: 14 },
      { id: "ensalada", name: "Ensalada huerta", price: 13 },
      { id: "anchoas", name: "Anchoas Cantábrico", price: 17 },
    ],
  },
  principales: {
    title: "Principales",
    icon: "🥩",
    items: [
      { id: "ribeye", name: "Ribeye 14oz", price: 48 },
      { id: "branzino", name: "Branzino entero", price: 38 },
      { id: "risotto", name: "Risotto hongos", price: 26 },
      { id: "pollo", name: "Pollo carbón", price: 28 },
      { id: "pappardelle", name: "Pappardelle ragú", price: 24 },
      { id: "salmon", name: "Salmón a la plancha", price: 32 },
      { id: "cordero", name: "Costilla cordero", price: 42 },
      { id: "vegetariano", name: "Plato del huerto", price: 22 },
    ],
  },
  postres: {
    title: "Postres",
    icon: "🍰",
    items: [
      { id: "tarta", name: "Tarta de queso", price: 11 },
      { id: "olive", name: "Olive oil cake", price: 10 },
      { id: "ganache", name: "Chocolate ganache", price: 12 },
      { id: "sorbete", name: "Sorbete cítrico", price: 9 },
    ],
  },
  bebidas: {
    title: "Bebidas",
    icon: "🍷",
    items: [
      { id: "vermut", name: "Vermut casa", price: 9 },
      { id: "negroni", name: "Negroni sbagliato", price: 14 },
      { id: "spritz", name: "Spritz", price: 13 },
      { id: "tinto", name: "Tinto natural", price: 12 },
      { id: "blanco", name: "Blanco copa", price: 11 },
      { id: "agua", name: "Agua mineral", price: 5 },
      { id: "cafe", name: "Café espresso", price: 4 },
    ],
  },
};

const catsEl = document.getElementById("cats");
const gridEl = document.getElementById("grid");
const catTitle = document.getElementById("catTitle");
const linesEl = document.getElementById("lines");
const emptyEl = document.getElementById("empty");
const ticketMeta = document.getElementById("ticketMeta");
const subtotalEl = document.getElementById("subtotal");
const taxEl = document.getElementById("tax");
const totalEl = document.getElementById("total");
const payTotalEl = document.getElementById("payTotal");
const payBtn = document.getElementById("pay");
const clearBtn = document.getElementById("clear");
const holdBtn = document.getElementById("hold");

let activeCat = "entradas";
let ticket = []; // { id, name, price, qty }

function money(v) {
  return `$${v.toFixed(2)}`;
}

function renderCats() {
  catsEl.innerHTML = Object.entries(MENU)
    .map(
      ([key, c]) => `
      <button class="cat-btn ${key === activeCat ? "is-active" : ""}" data-cat="${key}">
        <span class="cat-icon">${c.icon}</span>
        <span>${c.title}</span>
      </button>`
    )
    .join("");
}

function renderGrid() {
  const cat = MENU[activeCat];
  catTitle.textContent = cat.title;
  gridEl.innerHTML = cat.items
    .map(
      (item) => `
      <button class="tile" data-item="${item.id}" data-name="${item.name}" data-price="${item.price}">
        <span class="tile-name">${item.name}</span>
        <span class="tile-price">$${item.price.toFixed(2)}</span>
      </button>`
    )
    .join("");
}

function renderTicket() {
  const itemCount = ticket.reduce((n, l) => n + l.qty, 0);
  ticketMeta.textContent = `${itemCount} ${itemCount === 1 ? "item" : "items"}`;

  if (ticket.length === 0) {
    linesEl.innerHTML = "";
    emptyEl.style.display = "";
  } else {
    emptyEl.style.display = "none";
    linesEl.innerHTML = ticket
      .map(
        (l) => `
        <li class="line" data-id="${l.id}">
          <div class="line-qty">
            <button data-action="dec" aria-label="Decrease">−</button>
            <span>${l.qty}</span>
            <button data-action="inc" aria-label="Increase">+</button>
          </div>
          <span class="line-name">${l.name}</span>
          <span class="line-price">${money(l.price * l.qty)}</span>
        </li>`
      )
      .join("");
  }

  const subtotal = ticket.reduce((s, l) => s + l.price * l.qty, 0);
  const tax = subtotal * TAX_RATE;
  const total = subtotal + tax;

  subtotalEl.textContent = money(subtotal);
  taxEl.textContent = money(tax);
  totalEl.textContent = money(total);
  payTotalEl.textContent = money(total);
  payBtn.disabled = ticket.length === 0;
}

function addItem(id, name, price, tile) {
  const existing = ticket.find((l) => l.id === id);
  if (existing) existing.qty += 1;
  else ticket.push({ id, name, price, qty: 1 });
  renderTicket();
  if (tile) {
    tile.classList.remove("is-flash");
    void tile.offsetWidth; // restart animation
    tile.classList.add("is-flash");
  }
}

catsEl.addEventListener("click", (e) => {
  const btn = e.target.closest("[data-cat]");
  if (!btn) return;
  activeCat = btn.dataset.cat;
  renderCats();
  renderGrid();
});

gridEl.addEventListener("click", (e) => {
  const tile = e.target.closest("[data-item]");
  if (!tile) return;
  addItem(tile.dataset.item, tile.dataset.name, Number(tile.dataset.price), tile);
});

linesEl.addEventListener("click", (e) => {
  const btn = e.target.closest("[data-action]");
  if (!btn) return;
  const li = btn.closest("[data-id]");
  if (!li) return;
  const line = ticket.find((l) => l.id === li.dataset.id);
  if (!line) return;
  if (btn.dataset.action === "inc") line.qty += 1;
  if (btn.dataset.action === "dec") {
    line.qty -= 1;
    if (line.qty <= 0) ticket = ticket.filter((l) => l.id !== line.id);
  }
  renderTicket();
});

clearBtn.addEventListener("click", () => {
  if (ticket.length === 0) return;
  ticket = [];
  renderTicket();
});

holdBtn.addEventListener("click", () => {
  holdBtn.textContent = "Held ✓";
  setTimeout(() => (holdBtn.textContent = "Hold"), 1400);
});

payBtn.addEventListener("click", () => {
  const txt = payBtn.querySelector("span").textContent;
  payBtn.querySelector("span").textContent = "Sent ✓";
  setTimeout(() => {
    payBtn.querySelector("span").textContent = txt;
    ticket = [];
    renderTicket();
  }, 900);
});

renderCats();
renderGrid();
renderTicket();

<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link rel="preconnect" href="https://fonts.googleapis.com" />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
    <link
      rel="stylesheet"
      href="https://fonts.googleapis.com/css2?family=Inter:wght@500;600;700;800&family=JetBrains+Mono:wght@500;700&display=swap"
    />
    <link rel="stylesheet" href="style.css" />
    <title>POS · Quick Pad</title>
  </head>
  <body>
    <main class="pos">
      <aside class="cats" aria-label="Categories">
        <header class="cats-head">
          <span class="logo">Casa Olivar</span>
          <span class="terminal">Terminal 02</span>
        </header>
        <nav class="cats-list" id="cats"></nav>
        <footer class="cats-foot">
          <button class="util-btn" type="button">Tables</button>
          <button class="util-btn" type="button">Search</button>
        </footer>
      </aside>

      <section class="grid-wrap">
        <header class="grid-head">
          <h1 id="catTitle">Entradas</h1>
          <span class="grid-hint">Tap to add to ticket</span>
        </header>
        <div class="grid" id="grid"></div>
      </section>

      <aside class="ticket" aria-label="Current ticket">
        <header class="ticket-head">
          <div>
            <p class="ticket-table">Table 7</p>
            <p class="ticket-meta" id="ticketMeta">0 items</p>
          </div>
          <button class="clear-btn" type="button" id="clear">Clear</button>
        </header>
        <ul class="lines" id="lines"></ul>
        <p class="empty" id="empty">Pick an item to start a ticket.</p>
        <footer class="ticket-foot">
          <div class="totals">
            <div class="total-row">
              <span>Subtotal</span><span id="subtotal">$0.00</span>
            </div>
            <div class="total-row">
              <span>Tax (8.25%)</span><span id="tax">$0.00</span>
            </div>
            <div class="total-row total-row--big">
              <span>Total</span><span id="total">$0.00</span>
            </div>
          </div>
          <div class="actions">
            <button class="ghost" type="button" id="hold">Hold</button>
            <button class="primary" type="button" id="pay" disabled>
              <span>Send · Pay</span>
              <span class="pay-total" id="payTotal">$0.00</span>
            </button>
          </div>
        </footer>
      </aside>
    </main>

    <script src="script.js"></script>
  </body>
</html>