:root {
  --ucar-blue: #003f7d;
  --ucar-deep-blue: #002f5e;
  --ucar-gold: #f0b323;
  --ucar-light: #f6f8fb;
  --ucar-text: #1f2933;
  --ucar-muted: #657484;
  --ucar-border: #d9e2ec;
  --white: #ffffff;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--ucar-light);
  color: var(--ucar-text);
}
a { color: inherit; }
.store-header {
  background: var(--white);
  border-bottom: 5px solid var(--ucar-gold);
  box-shadow: 0 2px 14px rgba(0,0,0,.08);
}
.store-wrap {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}
.store-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0;
}
.logo-block {
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
}
.logo-block img {
  width: 225px;
  max-width: 58vw;
  height: auto;
}
.logo-text {
  border-left: 1px solid var(--ucar-border);
  padding-left: 16px;
}
.logo-text strong {
  display: block;
  color: var(--ucar-blue);
  font-size: 20px;
  letter-spacing: .02em;
}
.logo-text span {
  display: block;
  margin-top: 3px;
  color: var(--ucar-muted);
  font-size: 14px;
}
.top-link {
  color: var(--ucar-blue);
  font-weight: 700;
  text-decoration: none;
}
.hero {
  background: linear-gradient(135deg, var(--ucar-blue), var(--ucar-deep-blue));
  color: var(--white);
  padding: 44px 0;
}
.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(28px, 5vw, 46px);
}
.hero p {
  margin: 0;
  max-width: 720px;
  line-height: 1.6;
  color: rgba(255,255,255,.9);
}
.content {
  padding: 34px 0 56px;
}
.notice {
  background: #fff8e5;
  border: 1px solid #f1d38a;
  padding: 14px 16px;
  border-radius: 10px;
  margin-bottom: 22px;
  color: #5f4613;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.product-card {
  background: var(--white);
  border: 1px solid var(--ucar-border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 5px 18px rgba(0,0,0,.06);
  display: flex;
  flex-direction: column;
}
.product-image {
  background: #eef3f8;
  height: 230px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-placeholder {
  color: var(--ucar-muted);
  font-weight: 700;
}
.product-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.category {
  color: var(--ucar-muted);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.product-body h2, .detail-info h1 {
  margin: 0;
  color: var(--ucar-blue);
}
.price {
  color: var(--ucar-text);
  font-size: 22px;
  font-weight: 800;
}
.description {
  color: var(--ucar-muted);
  line-height: 1.55;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--ucar-blue);
  color: var(--white);
  text-decoration: none;
  font-weight: 800;
  border: 0;
  cursor: pointer;
}
.btn.gold {
  background: var(--ucar-gold);
  color: #2c250d;
}
.btn.light {
  background: var(--white);
  color: var(--ucar-blue);
  border: 1px solid var(--ucar-border);
}
.card-actions {
  margin-top: auto;
}
.detail-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px;
  background: var(--white);
  border: 1px solid var(--ucar-border);
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 5px 18px rgba(0,0,0,.06);
}
.detail-image {
  background: #eef3f8;
  border-radius: 12px;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.detail-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.detail-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.qty-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 8px 0 4px;
}
.qty-row input {
  width: 80px;
  padding: 10px;
  border: 1px solid var(--ucar-border);
  border-radius: 8px;
  font-size: 16px;
}
.empty {
  background: var(--white);
  border: 1px dashed var(--ucar-border);
  border-radius: 14px;
  padding: 28px;
  color: var(--ucar-muted);
}
.footer {
  border-top: 1px solid var(--ucar-border);
  background: var(--white);
  padding: 20px 0;
  color: var(--ucar-muted);
  font-size: 14px;
}
@media (max-width: 850px) {
  .product-grid, .detail-layout { grid-template-columns: 1fr; }
  .store-top { align-items: flex-start; flex-direction: column; }
  .logo-text { border-left: 0; padding-left: 0; }
  .logo-block { align-items: flex-start; flex-direction: column; }
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.inline-form {
  display: inline-flex;
  margin: 0;
}
.card-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.page-title-row {
  background: var(--white);
  border: 1px solid var(--ucar-border);
  border-radius: 14px;
  padding: 22px 24px;
  margin-bottom: 22px;
  box-shadow: 0 5px 18px rgba(0,0,0,.04);
}
.page-title-row h1 {
  margin: 0 0 6px;
  color: var(--ucar-blue);
}
.page-title-row p {
  margin: 0;
  color: var(--ucar-muted);
}
.cart-card {
  background: var(--white);
  border: 1px solid var(--ucar-border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 5px 18px rgba(0,0,0,.06);
}
.cart-row {
  display: grid;
  grid-template-columns: 96px 1fr 90px 120px 80px;
  gap: 18px;
  align-items: center;
  padding: 18px;
  border-bottom: 1px solid var(--ucar-border);
}
.cart-row:last-child {
  border-bottom: 0;
}
.cart-thumb {
  width: 96px;
  height: 76px;
  background: #eef3f8;
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ucar-muted);
  font-weight: 800;
}
.cart-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.cart-main h2 {
  margin: 4px 0 6px;
  color: var(--ucar-blue);
  font-size: 20px;
}
.cart-qty label {
  display: block;
  color: var(--ucar-muted);
  font-size: 13px;
  margin-bottom: 5px;
}
.cart-qty input {
  width: 74px;
  padding: 10px;
  border: 1px solid var(--ucar-border);
  border-radius: 8px;
  font-size: 16px;
}
.cart-line-total {
  font-weight: 800;
  font-size: 18px;
  text-align: right;
}
.link-button {
  border: 0;
  background: transparent;
  color: var(--ucar-blue);
  font-weight: 800;
  text-decoration: underline;
  cursor: pointer;
  padding: 0;
  font: inherit;
}
.cart-summary {
  background: var(--white);
  border: 1px solid var(--ucar-border);
  border-radius: 14px;
  padding: 20px;
  margin-top: 20px;
  max-width: 520px;
  margin-left: auto;
  box-shadow: 0 5px 18px rgba(0,0,0,.04);
}
.summary-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 22px;
}
.summary-note {
  color: var(--ucar-muted);
  margin: 12px 0 18px;
  line-height: 1.5;
}
.cart-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.clear-cart-form {
  max-width: 520px;
  margin: 14px 0 0 auto;
  text-align: right;
}
button:disabled,
.btn:disabled {
  opacity: .65;
  cursor: not-allowed;
}
@media (max-width: 850px) {
  .cart-row {
    grid-template-columns: 80px 1fr;
  }
  .cart-thumb {
    width: 80px;
    height: 70px;
  }
  .cart-qty,
  .cart-line-total,
  .cart-remove {
    grid-column: 2;
  }
  .cart-line-total {
    text-align: left;
  }
  .cart-summary,
  .clear-cart-form {
    max-width: none;
    margin-left: 0;
  }
}

.error-box {
  background: #fff0f0;
  border: 1px solid #e2a5a5;
  color: #7a1f1f;
  padding: 14px 18px;
  border-radius: 8px;
  margin-bottom: 22px;
}

.checkout-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 24px;
  align-items: start;
}

.form-card,
.order-summary-card,
.complete-card {
  background: #fff;
  border: 1px solid #dbe3ee;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 8px 24px rgba(0,0,0,.05);
}

.form-card h2,
.order-summary-card h2 {
  margin-top: 0;
  color: #003f73;
}

.form-card label {
  display: block;
  font-weight: 700;
  margin: 16px 0 6px;
  color: #27384a;
}

.form-card input,
.form-card textarea {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid #c8d3df;
  border-radius: 8px;
  padding: 11px 12px;
  font-size: 16px;
}

.form-card textarea {
  resize: vertical;
}

.form-card .btn {
  margin-top: 18px;
}

.summary-item,
.summary-line {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid #edf1f5;
}

.summary-line.total {
  font-size: 20px;
  border-bottom: 0;
  color: #003f73;
}

.order-summary-card.full {
  max-width: 720px;
  margin-top: 24px;
}

.complete-card h1 {
  margin-top: 0;
  color: #003f73;
}

.order-number {
  display: inline-block;
  margin-top: 8px;
  padding: 10px 14px;
  border-radius: 8px;
  background: #f5f8fb;
  border: 1px solid #dbe3ee;
  font-weight: 800;
  color: #003f73;
}

@media (max-width: 800px) {
  .checkout-layout {
    grid-template-columns: 1fr;
  }
}