* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: #f3f5f9;
  color: #121826;
}

.app {
  max-width: 920px;
  margin: 0 auto;
  padding: 16px;
  display: grid;
  gap: 16px;
}

.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: #ffffff;
  border-radius: 12px;
  border: 1px solid #d7deea;
  padding: 18px;
}

.auth-subtitle {
  margin: 6px 0 14px;
  color: #4c576f;
}

.auth-form {
  display: grid;
  gap: 8px;
}

.auth-form input {
  border: 1px solid #bac4d8;
  border-radius: 8px;
  padding: 10px;
  font-size: 16px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.actions {
  display: flex;
  gap: 8px;
}

h1, h2 {
  margin: 0;
}

.panel {
  background: #ffffff;
  border-radius: 12px;
  border: 1px solid #d7deea;
  padding: 14px;
}

.menu-list {
  display: grid;
  gap: 10px;
  margin-top: 10px;
}

.menu-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
  border: 1px solid #d7deea;
  border-radius: 10px;
  padding: 10px;
}

.meta {
  display: grid;
  gap: 3px;
}

.name {
  font-weight: 700;
}

.price {
  font-size: 14px;
  color: #4c576f;
}

.qty {
  width: 92px;
  padding: 8px;
  font-size: 18px;
  border-radius: 8px;
  border: 1px solid #bac4d8;
}

.summary {
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 22px;
}

button {
  border: 0;
  border-radius: 10px;
  padding: 12px 14px;
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
}

.primary {
  width: 100%;
  margin-top: 12px;
  background: #1f6feb;
  color: #ffffff;
}

.primary:disabled {
  background: #9cb3d8;
  cursor: not-allowed;
}

.secondary {
  background: #eaf0fb;
  color: #24324a;
}

.status {
  min-height: 20px;
  margin: 10px 0 0;
  color: #1a335b;
  font-weight: 600;
}

.balances {
  margin-top: 10px;
  display: grid;
  gap: 8px;
}

.balance-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid #edf1f7;
}

@media (max-width: 640px) {
  .summary {
    font-size: 20px;
  }
}