:root {
  --ink: #172033;
  --muted: #627084;
  --line: #d8dee8;
  --soft: #f6f7f9;
  --blue: #005dab;
  --red: #c41230;
  --green: #1f7a4d;
  --gold: #a66b00;
  --panel: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: #eef2f6;
  font-family: Arial, "Microsoft YaHei", "Noto Sans JP", sans-serif;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}

button:hover {
  border-color: var(--blue);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 28px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--red);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: 28px;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 18px;
}

.nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.top-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

.auth-status {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.auth-status button {
  min-height: 32px;
  padding: 0 10px;
}

.language-switch {
  display: flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.lang-button {
  min-height: 32px;
  padding: 0 10px;
  border: 0;
  background: transparent;
  color: var(--muted);
}

.lang-button.active {
  background: #fff;
  color: var(--blue);
  box-shadow: 0 0 0 1px var(--line);
}

.nav-button {
  padding: 0 14px;
}

.nav-button.active,
.primary {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}

main {
  width: min(1280px, 100%);
  margin: 0 auto;
  padding: 22px;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.controls {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(170px, 240px) minmax(150px, 200px) 96px;
  gap: 12px;
  align-items: end;
  margin-bottom: 14px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
}

input,
select {
  height: 42px;
  padding: 0 12px;
}

textarea {
  padding: 10px 12px;
  resize: vertical;
}

.summary-line {
  display: flex;
  gap: 8px;
  align-items: baseline;
  margin: 12px 0 18px;
  color: var(--muted);
}

.recommend-section,
.category-section,
.group-section {
  margin: 18px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

.recommended-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 12px;
}

.group-section {
  padding: 16px;
  border: 1px solid #bdd3e8;
  border-radius: 8px;
  background: #f3f8fc;
}

.group-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}

.group-card {
  display: grid;
  gap: 12px;
  padding: 14px;
  border: 1px solid #b9cfe5;
  border-radius: 8px;
  background: #fff;
}

.group-card header,
.group-foot,
.group-stats {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.group-share {
  align-self: start;
  color: var(--red);
  font-size: 18px;
  font-weight: 800;
}

.group-product {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  margin-top: 8px;
}

.group-product img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  background: #fff;
}

.group-progress {
  overflow: hidden;
  height: 10px;
  border-radius: 999px;
  background: #e2e8f0;
}

.group-progress span {
  display: block;
  height: 100%;
  background: var(--green);
}

.group-stats,
.group-foot {
  color: var(--muted);
  font-size: 13px;
}

.category-pills {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.category-pill {
  flex: 0 0 auto;
  min-height: 38px;
  padding: 0 12px;
  white-space: nowrap;
}

.category-pill.active {
  border-color: var(--blue);
  background: #e8f2fb;
  color: var(--blue);
}

.category-pill span {
  color: var(--muted);
  font-size: 12px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 14px;
}

.load-more-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin: 22px 0 8px;
}

.load-more-row button {
  min-width: 160px;
}

.product-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.product-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: #fff;
}

.product-card.compact img {
  aspect-ratio: 1 / 1;
}

.product-body {
  display: grid;
  gap: 10px;
  padding: 12px;
}

.product-name {
  min-height: 44px;
  font-size: 15px;
  line-height: 1.45;
}

.product-alt {
  display: grid;
  gap: 3px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.35;
}

.product-alt span {
  color: var(--blue);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.product-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.price {
  color: var(--red);
  font-size: 20px;
  font-weight: 800;
}

.rating {
  color: var(--gold);
  font-size: 13px;
}

.tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  min-height: 24px;
}

.tag {
  padding: 3px 7px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--muted);
  font-size: 12px;
}

.product-actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.manual-section {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  margin: 22px 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.manual-form {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) 110px 180px auto;
  gap: 10px;
}

.manual-form textarea {
  grid-column: 1 / 4;
}

.manual-form button {
  grid-column: 4;
  grid-row: 1 / 3;
}

.checkout-layout,
.admin-grid,
.my-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 16px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 16px;
}

.cart-items,
.orders-list,
.purchase-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.cart-row,
.order-row,
.purchase-row {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.cart-row {
  grid-template-columns: 64px minmax(0, 1fr) 96px;
  align-items: center;
}

.cart-row img {
  width: 64px;
  height: 64px;
  object-fit: contain;
}

.cart-placeholder {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.quantity {
  display: grid;
  grid-template-columns: 32px 32px 32px;
  gap: 4px;
  align-items: center;
  text-align: center;
}

.quantity button {
  min-height: 32px;
}

.cart-total {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 14px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 18px;
}

.cart-total small {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 12px;
}

.order-form {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.auth-panel {
  display: grid;
  gap: 10px;
  margin-top: 14px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.auth-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 8px;
}

.auth-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.delivery-box {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.delivery-box legend {
  padding: 0 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.check-row,
.radio-row {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
}

.check-row input,
.radio-row input {
  width: 18px;
  height: 18px;
}

.address-fields {
  display: grid;
  gap: 10px;
  padding-top: 4px;
}

.delivery-quote {
  display: grid;
  gap: 4px;
  min-height: 22px;
  color: var(--green);
  font-size: 13px;
  line-height: 1.5;
}

.maps-link {
  color: var(--blue);
  font-weight: 700;
  text-decoration: none;
}

.maps-link:hover {
  text-decoration: underline;
}

.message {
  min-height: 20px;
  margin: 0;
  color: var(--green);
  font-weight: 700;
}

.admin-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}

.admin-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.admin-tools select {
  min-width: 150px;
}

.deadline-panel {
  margin-bottom: 14px;
}

.deadline-tools {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) 140px 110px;
  gap: 10px;
  align-items: end;
  margin-top: 12px;
}

.inline-control {
  display: grid;
  grid-template-columns: 90px minmax(160px, 1fr);
  align-items: center;
}

.status-control {
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.member-list {
  display: grid;
  gap: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.member-row {
  display: grid;
  grid-template-columns: minmax(130px, 1fr) 80px 80px 90px;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}

.empty.compact {
  padding: 12px;
}

.order-row header,
.purchase-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.small {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.empty {
  padding: 28px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 820px) {
  .topbar,
  .admin-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .top-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .controls,
  .manual-section,
  .manual-form,
  .checkout-layout,
  .admin-grid,
  .my-grid {
    grid-template-columns: 1fr;
  }

  .manual-form textarea,
  .manual-form button {
    grid-column: auto;
    grid-row: auto;
  }

  .member-row,
  .inline-control,
  .deadline-tools {
    grid-template-columns: 1fr;
  }

  main {
    padding: 14px;
  }

  .cart-row {
    grid-template-columns: 56px minmax(0, 1fr);
  }

  .quantity {
    grid-column: 1 / -1;
  }
}