body {
  font-family: 'Poppins', sans-serif;
  
  color: #222;
  margin: 0;
  padding: 0;
}

.container12 {
  max-width: 1000px;
  margin: 40px auto;
  background: white;
  padding: 25px;
  border-radius: 15px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

h1, h2 {
  text-align: center;
  color: #4a148c;
}

.main-content {
  display: flex;
  justify-content: space-between;
  gap: 30px;
}

.left-panel, .right-panel {
  flex: 1;
}

.menu-items {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.item {
  background-color: #7b1fa2;
  color: rgba(17, 15, 15, 0.902);
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  cursor: pointer;
  transition: 0.3s;
}

.item:hover {
  background-color: #b425ce;
}

.order-summary table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
}

.order-summary th, .order-summary td {
  border: 3px #4a148c;
  text-align: center;
  padding: 8px;
}

.total {
  text-align: right;
  margin-top: 10px;
  font-weight: bold;
  font-size: 1.2em;
}

.payment {
  text-align: center;
  margin-top: 20px;
}

.payment input {
  padding: 8px;
  width: 60%;
  margin-bottom: 10px;
}

#pay-btn {
  background-color: #4a148c;
  color: white;
  border: none;
  padding: 10px 25px;
  border-radius: 8px;
  cursor: pointer;
}

#pay-btn:hover {
  background-color: #6a1b9a;
}

#reset1 {
 background-color: #4a148c;
  color: white;
  border: none;
  padding: 10px 25px;
  border-radius: 8px;
  cursor: pointer;
}

#reset1:hover{
  background-color: #6a1b9a;
}

#resetagain {
 background-color: #4a148c;
  color: white;
  border: none;
  padding: 10px 25px;
  border-radius: 8px;
  cursor: pointer;
}

#resetagain:hover{
  background-color: #6a1b9a;
}
#change {
  margin-top: 10px;
  font-size: 1.1em;
  font-weight: bold;
}

/* Receipt Panel */
.right-panel {
  background: #120334;
  border-radius: 12px;
  border-color: #7b1fa2;
  padding: 15px;
  box-shadow: inset 0 0 8px rgba(0,0,0,0.1);
  min-height: 300px;
}

#receipt-content {
  background: white;
  padding: 10px;
  border-radius: 8px;
  min-height: 200px;
  font-size: 0.95em;
  color: #333;
}

#receipt-content p {
  margin: 5px 0;
  line-height: 1.4em;
}

.receipt-item {
  display: flex;
  justify-content: space-between;
}

/* --- DEMONSTRATION SECTION --- */
.overview-demo {
    margin-top: 25px;
    text-align: left;
    
}

.overview-demo .demo-title {
    color: var(--text-medium);
    font-size: 1.4em;
    margin-bottom: 15px;
    
}

.overview-demo .video-wrapper {
    max-width: 1000px;
    margin: 0 auto;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 15px;
}

.overview-demo .demo-video {
    width: 100%;
    border-radius: 10px;
}

.overview-demo .video-caption {
    color: var(--text-medium);
    font-size: 0.95em;
    margin-top: 10px;
}

/* --- CONCLUSION SECTION --- */
.overview-conclusion {
    margin-top: 25px;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
}

.overview-conclusion .conclusion-title {
    color: var(--text-medium);
    font-size: 1.4em;
    margin-bottom: 10px;
}

.overview-conclusion .conclusion-text {
    color: var(--text-medium);
    line-height: 1.6;
    font-size: 1em;
    text-align: justify;
}