:root {
  --bg: #f6f3ff;
  --card: #ffffff;
  --ink: #1f2140;
  --muted: #6b6f8f;
  --accent: #6c63ff;
  --accent-ink: #ffffff;
  --line: rgba(31, 33, 64, 0.1);
  --good: #18a058;
  --bad: #d03050;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15162a;
    --card: #1f2140;
    --ink: #f1f0ff;
    --muted: #a6a9c9;
    --line: rgba(255, 255, 255, 0.12);
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 18px/1.4 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

button {
  font: inherit;
  cursor: pointer;
  border: 0;
  border-radius: 14px;
  padding: 12px 20px;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.primary {
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
}

.quiet {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 6px 20px rgba(17, 24, 39, 0.06);
}

.error {
  color: var(--bad);
  margin: 0;
}

.login {
  display: grid;
  place-items: center;
  gap: 24px;
  min-height: 70vh;
}

.brand {
  font-size: 40px;
  font-weight: 800;
}

.login-card {
  display: grid;
  gap: 14px;
  width: min(420px, 100%);
  padding: 28px;
}

.login-card label {
  font-weight: 700;
}

.login-card input {
  font: inherit;
  font-size: 22px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 2px solid var(--line);
  background: transparent;
  color: inherit;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.who {
  font-size: 26px;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.balance {
  color: var(--muted);
}

.balance span {
  color: var(--accent);
  font-size: 30px;
  font-weight: 800;
}

.banner {
  background: #fff4d6;
  color: #6b4e00;
  padding: 12px 16px;
  border-radius: 14px;
}

.items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 16px;
}

.item {
  display: grid;
  gap: 6px;
  padding: 14px;
  text-align: left;
  color: inherit;
}

.item img,
.placeholder {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  border-radius: 12px;
  background: rgba(108, 99, 255, 0.06);
}

.placeholder {
  display: grid;
  place-items: center;
  font-size: 56px;
}

.item-name {
  font-weight: 700;
}

.price {
  color: var(--accent);
  font-weight: 800;
}

.stock {
  color: var(--muted);
  font-size: 15px;
}

.stock.out {
  color: var(--bad);
  font-weight: 700;
}

h2 {
  margin: 36px 0 12px;
}

h2.category {
  margin: 28px 0 12px;
  font-size: 1.15rem;
}

#items > h2.category:first-child {
  margin-top: 8px;
}

.orders {
  display: grid;
  gap: 10px;
}

.order {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 12px;
  padding: 12px 16px;
}

.order-status {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 15px;
}

.order.picked_up .order-status {
  color: var(--good);
}

.order.cancelled {
  opacity: 0.6;
}

.empty {
  color: var(--muted);
}

dialog {
  border: 0;
  border-radius: 22px;
  padding: 24px;
  width: min(380px, calc(100% - 32px));
  background: var(--card);
  color: var(--ink);
}

dialog::backdrop {
  background: rgba(15, 16, 32, 0.5);
}

#buy-form {
  display: grid;
  gap: 14px;
  text-align: center;
}

#buy-image {
  width: 140px;
  height: 140px;
  object-fit: contain;
  margin: 0 auto;
}

#buy-form h3 {
  margin: 0;
  font-size: 24px;
}

.stepper {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 18px;
  font-size: 28px;
  font-weight: 800;
}

.stepper button {
  width: 52px;
  height: 52px;
  padding: 0;
  font-size: 28px;
  background: rgba(108, 99, 255, 0.12);
  color: var(--accent);
}

.total {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}