* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Inknut Antiqua", serif;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  background: #493d3d;
  color: #3b2929;
  display: grid;
  grid-template-columns: minmax(140px, 200px) 1fr;
  grid-template-rows: auto 1fr;
  grid-template-areas:
    "top top"
    "side main";
}

.top-bar {
  grid-area: top;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  padding: clamp(0.75rem, 2vw, 1.25rem) clamp(1rem, 3vw, 1.5rem);
  background: #3b2929;
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
}

.top-bar #logo {
  width: clamp(40px, 10vw, 52px);
  height: clamp(40px, 10vw, 52px);
  object-fit: contain;
}

.top-bar h3 {
  font-size: clamp(1rem, 3vw, 1.35rem);
  font-weight: 400;
  flex: 1 1 auto;
  min-width: 0;
}

.top-bar a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  color: #fff;
  border-radius: 10px;
}

.top-bar a:hover {
  background: rgba(255, 255, 255, 0.12);
}

.top-bar .line {
  flex-basis: 100%;
  width: 100%;
  height: 3px;
  background: #eae9ba;
  border-radius: 2px;
  margin-top: 0.25rem;
}

.side-bar {
  grid-area: side;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: clamp(1rem, 3vw, 1.5rem) 0.75rem;
  background: #4c4141;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.box {
  padding: 0.75rem 0.5rem;
  text-align: center;
  font-size: clamp(0.65rem, 2vw, 0.8rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.85);
  border-radius: 10px;
  cursor: pointer;
  user-select: none;
}

.box:hover {
  background: rgba(255, 255, 255, 0.1);
}

.box.active {
  background: #eae9ba;
  color: #3b2929;
}

.view-order,
.payment,
.receipt {
  grid-area: main;
  display: none;
  margin: clamp(1rem, 3vw, 2rem);
  align-self: start;
  justify-self: center;
  width: calc(100% - 2 * clamp(1rem, 3vw, 2rem));
  max-width: 560px;
}

.view-order.panel--active,
.payment.panel--active,
.receipt.panel--active {
  display: block;
}

.view-order {
  background: #eae9ba;
  border-radius: 20px;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
  min-height: 200px;
}

.view-order:empty::before {
  content: "No items in your order yet. Add something from the menu.";
  display: block;
  color: #6e5252;
  font-size: clamp(0.95rem, 2.5vw, 1.1rem);
  line-height: 1.6;
  text-align: center;
  padding: 2rem 0.5rem;
}

.payment {
  background: #eae9ba;
  border-radius: 20px;
  padding: clamp(1.25rem, 4vw, 2rem);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
}

.payment form > div {
  margin-bottom: 1.25rem;
}

.payment h3 {
  font-size: clamp(0.9rem, 2.2vw, 1.05rem);
  margin-bottom: 0.35rem;
  color: #3b2929;
}

.payment input[type="text"] {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  border: 2px solid rgba(59, 41, 41, 0.25);
  border-radius: 10px;
  font-size: 1rem;
  font-family: Arial, Helvetica, sans-serif;
  outline: none;
  margin-top: 0.25rem;
}

.payment input[type="text"]:focus {
  border-color: #3b2929;
}

#payment-line2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 520px) {
  #payment-line2 {
    grid-template-columns: 1fr;
  }
}

.method-container h4 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  color: #3b2929;
}

#method {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

#method img {
  height: 36px;
  width: auto;
  max-width: 88px;
  object-fit: contain;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 8px;
  background: #fff;
  border: 2px solid transparent;
}

#method img.selected {
  border-color: #3b2929;
}

.receipt {
  background: #eae9ba;
  border-radius: 20px;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  text-align: center;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
}

.receipt h3 {
  color: #3b2929;
  font-size: clamp(1.25rem, 4vw, 1.65rem);
  margin-bottom: 1.25rem;
}

.receipt img {
  width: min(100%, 200px);
  height: auto;
  margin: 0 auto 1rem;
  display: block;
  border-radius: 8px;
}

#transID {
  font-family: "Courier New", monospace;
  font-size: 0.95rem;
  margin-bottom: 1rem;
  word-break: break-all;
}

#ty {
  font-size: clamp(0.85rem, 2.2vw, 0.95rem);
  line-height: 1.65;
  color: #555;
  margin-bottom: 1.5rem;
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
}

#rcpt-return {
  min-height: 48px;
  padding: 0 2rem;
  background: #3b2929;
  color: #fff;
  border: none;
  border-radius: 12px;
  font-family: inherit;
  font-size: 1rem;
  cursor: pointer;
}

#rcpt-return:hover {
  background: #5c3d3d;
}

@media (max-width: 768px) {
  body {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto 1fr;
    grid-template-areas:
      "top"
      "side"
      "main";
  }

  .side-bar {
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: stretch;
    gap: 0.35rem;
    padding: 0.65rem 0.5rem;
    overflow-x: auto;
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .box {
    flex: 1 1 0;
    min-width: 0;
    padding: 0.65rem 0.35rem;
  }

  .view-order,
  .payment,
  .receipt {
    margin: 1rem;
    width: calc(100% - 2rem);
  }
}