:root {
  --bg: #f6f4ef;
  --panel: #ffffff;
  --ink: #20211f;
  --muted: #6e6a62;
  --line: #e4ded2;
  --red: #c9252d;
  --green: #175b45;
  --gold: #b8893f;
  --soft: #fbfaf7;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 228px minmax(0, 1fr);
}

.hidden {
  display: none !important;
}

.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: #f3f1eb;
}

.login-box {
  width: min(380px, 100%);
  display: grid;
  gap: 16px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 50px rgba(28, 29, 27, .09);
}

.login-box h1,
.login-box p {
  text-align: center;
}

.login-box p {
  margin-top: -8px;
  color: var(--muted);
}

.login-seal {
  margin: 0 auto 4px;
}

.login-error {
  min-height: 20px;
  color: var(--red);
  font-size: 13px;
  text-align: center;
}

.remember-login {
  display: flex;
  align-items: center;
  gap: 8px;
  width: max-content;
  color: var(--ink);
}

.remember-login input {
  width: auto;
}

.form-error {
  min-height: 18px;
  color: var(--red);
  font-size: 13px;
}

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

.sidebar {
  background: #151817;
  color: #fff;
  padding: 24px 18px;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 32px;
}

.seal {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  background: var(--red);
  border-radius: 4px;
  font-weight: 800;
  font-size: 24px;
}

.brand strong, .brand small {
  display: block;
}

.brand small {
  color: #bcb7ae;
  margin-top: 3px;
}

.nav {
  width: 100%;
  border: 0;
  border-radius: 6px;
  margin-bottom: 8px;
  padding: 12px 14px;
  color: #d9d5cb;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.nav.active, .nav:hover {
  background: #232826;
  color: #fff;
}

.main {
  min-width: 0;
  padding: 26px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 22px;
}

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

h1, h2, p {
  margin: 0;
}

h1 {
  font-size: 24px;
}

h2 {
  font-size: 17px;
}

.topbar p, .sub, .name span, .empty {
  color: var(--muted);
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(5, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

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

.metric {
  padding: 18px;
}

.metric span {
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
}

.metric strong {
  font-size: 24px;
}

.panel {
  padding: 18px;
}

.panel-head, .toolbar, .form-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.panel-head {
  justify-content: space-between;
  margin-bottom: 12px;
}

.toolbar {
  margin-bottom: 14px;
}

.toolbar input {
  width: 320px;
}

.toolbar select {
  width: 150px;
}

.toolbar-divider {
  width: 1px;
  height: 28px;
  background: var(--line);
}

.split {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.form {
  display: grid;
  gap: 12px;
}

.product-layout {
  grid-template-columns: minmax(470px, 520px) minmax(620px, 1fr);
}

.category-layout {
  grid-template-columns: minmax(320px, 380px) minmax(480px, 1fr);
}

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

input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 11px;
  background: #fff;
  color: var(--ink);
}

.grid2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.checks {
  display: flex;
  gap: 16px;
}

.checks label {
  display: flex;
  align-items: center;
}

.checks input {
  width: auto;
}

.inline-check {
  display: flex;
  align-items: center;
  gap: 8px;
}

.inline-check input {
  width: auto;
}

button {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 14px;
  background: #fff;
  cursor: pointer;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 14px;
  text-decoration: none;
}

.primary {
  border-color: var(--red);
  background: var(--red);
  color: #fff;
}

.ghost {
  background: var(--soft);
  color: var(--ink);
}

.list {
  display: grid;
  gap: 8px;
}

.row {
  display: grid;
  gap: 12px;
  align-items: center;
  min-height: 58px;
  padding: 12px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.row.product {
  grid-template-columns: 24px 58px minmax(220px, 1fr) 112px 94px 76px 188px;
}

.row.order {
  grid-template-columns: 156px minmax(240px, 1fr) 112px 82px minmax(130px, 1fr) 218px;
}

.row.customer {
  grid-template-columns: 180px 160px 70px 70px minmax(180px, 1fr);
}

.name {
  display: grid;
  gap: 4px;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: max-content;
  min-width: 54px;
  border-radius: 999px;
  padding: 5px 9px;
  background: #e8f0eb;
  color: var(--green);
  font-size: 12px;
  font-weight: 700;
}

.badge.warn {
  background: #fff1d6;
  color: #8b5a00;
}

.badge.danger {
  background: #ffe4e4;
  color: var(--red);
}

.actions {
  display: flex;
  gap: 7px;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.actions button {
  padding: 8px 10px;
}

.order-confirm-action {
  min-width: 88px;
}

.order-confirm-action:disabled {
  cursor: wait;
  opacity: .68;
}

.danger-action {
  border-color: #efb6b6;
  background: #fff2f2;
  color: var(--red);
}

.product-check {
  width: 18px;
  height: 18px;
}

.thumb {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  flex: none;
  border: 1px solid var(--line);
  border-radius: 6px;
  object-fit: cover;
  background: #fff;
}

.thumb.placeholder {
  color: var(--red);
  font-weight: 800;
  font-size: 21px;
}

.danger-text {
  color: var(--red);
}

.category-row {
  grid-template-columns: 58px minmax(180px, 1fr) 84px 72px;
}

.field-title {
  color: var(--muted);
  font-size: 13px;
}

.upload-block {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--soft);
}

.upload-block small,
.variant-block small {
  color: var(--muted);
}

.upload-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.image-preview {
  width: 76px;
  height: 76px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
}

.upload-button {
  width: max-content;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 12px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}

.upload-button input {
  display: none;
}

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

.image-chip {
  position: relative;
}

.image-chip img {
  width: 72px;
  height: 72px;
  display: block;
  border: 1px solid var(--line);
  border-radius: 6px;
  object-fit: cover;
}

.image-chip button {
  position: absolute;
  top: -7px;
  right: -7px;
}

.variant-block {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  border-radius: 6px;
  padding: 14px;
  background: var(--soft);
}

.variant-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.variant-title-row h3 {
  margin: 0 0 4px;
  font-size: 15px;
}

.variant-summary {
  color: var(--muted);
  font-size: 12px;
}

.variant-add {
  flex: 0 0 auto;
  padding: 8px 11px;
}

.variant-head,
.variant-row {
  display: grid;
  grid-template-columns: minmax(110px, 1fr) 94px 94px 80px 34px;
  gap: 7px;
  align-items: center;
}

.variant-head {
  padding: 0 4px 6px;
  color: var(--muted);
  font-size: 12px;
}

.variant-rows {
  display: grid;
  gap: 7px;
}

.variant-field {
  min-width: 0;
}

.variant-field-label {
  display: none;
}

.variant-field input {
  min-width: 0;
  padding: 8px;
}

.icon-button,
.image-chip button {
  width: 30px;
  height: 30px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  padding: 0;
  background: #fff;
  color: var(--muted);
  font-size: 20px;
  line-height: 1;
}

.order-dialog {
  width: min(980px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  border: 0;
  border-radius: 8px;
  padding: 0;
  background: #fff;
  color: var(--ink);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .18);
}

.order-dialog::backdrop {
  background: rgba(15, 18, 17, .5);
}

.dialog-form {
  display: grid;
  gap: 18px;
  padding: 22px;
}

.dialog-head,
.dialog-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.dialog-head p {
  margin-top: 5px;
}

.order-form-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.order-form-grid .wide {
  grid-column: span 2;
}

.order-items-editor {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.order-item-head,
.order-item-row {
  min-width: 700px;
  grid-template-columns: minmax(220px, 1fr) 150px 90px 110px 110px;
}

.order-item-head {
  padding: 10px 12px;
  background: var(--soft);
}

.order-item-row {
  display: grid;
  gap: 8px;
  align-items: center;
  padding: 10px 12px;
  border-top: 1px solid var(--line);
}

.order-item-row input,
.order-item-row select {
  padding: 8px;
}

.dialog-summary {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.dialog-summary > span {
  color: var(--muted);
}

.dialog-summary strong {
  margin-left: 6px;
  color: var(--red);
  font-size: 20px;
}

.empty {
  padding: 24px;
  text-align: center;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  transform: translateY(20px);
  opacity: 0;
  pointer-events: none;
  background: #151817;
  color: #fff;
  padding: 12px 16px;
  border-radius: 6px;
  transition: .2s ease;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.service-panel p {
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.7;
}

.service-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.service-mode {
  display: grid;
  gap: 7px;
  margin-top: 18px;
  padding: 14px;
  border-left: 3px solid var(--green);
  background: var(--soft);
}

.service-mode span,
.service-steps {
  color: var(--muted);
  line-height: 1.7;
}

.service-steps {
  margin: 18px 0 0;
  padding-left: 22px;
}

.service-upgrade {
  margin-top: 16px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.notification-panel {
  margin-top: 16px;
}

.notification-panel .panel-head {
  align-items: flex-start;
}

.notification-panel .panel-head p {
  margin-top: 7px;
}

.notification-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: end;
  margin-top: 18px;
}

.notification-form small {
  color: var(--muted);
  line-height: 1.5;
}

.notification-form .form-actions {
  padding-bottom: 1px;
}

.notification-preview {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  padding: 12px 14px;
  border-left: 3px solid var(--gold);
  background: var(--soft);
}

.notification-preview span {
  color: var(--muted);
}

.security-form {
  width: min(520px, 100%);
}

.form-note {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.6;
}

.security-form small {
  color: var(--muted);
  line-height: 1.5;
}

@media (max-width: 1450px) {
  .product-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1100px) {
  .app-shell {
    grid-template-columns: 1fr;
  }
  .sidebar {
    display: flex;
    gap: 8px;
    align-items: center;
    overflow-x: auto;
    position: sticky;
    top: 0;
    z-index: 10;
    padding-top: max(16px, env(safe-area-inset-top));
  }
  .brand {
    margin: 0 16px 0 0;
    min-width: 180px;
  }
  .nav {
    width: auto;
    min-width: 84px;
    margin: 0;
  }
  .metrics, .split, .service-grid, .notification-form {
    grid-template-columns: 1fr;
  }
  .row.product, .row.order, .row.customer {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .login-screen {
    padding:
      max(16px, env(safe-area-inset-top))
      max(16px, env(safe-area-inset-right))
      max(16px, env(safe-area-inset-bottom))
      max(16px, env(safe-area-inset-left));
  }

  .login-box {
    padding: 24px 20px;
  }

  .sidebar {
    padding-right: max(12px, env(safe-area-inset-right));
    padding-left: max(12px, env(safe-area-inset-left));
  }

  .brand {
    min-width: 148px;
  }

  .brand small {
    display: none;
  }

  .main {
    padding: 18px max(14px, env(safe-area-inset-right)) max(22px, env(safe-area-inset-bottom)) max(14px, env(safe-area-inset-left));
  }

  .topbar {
    align-items: flex-start;
    gap: 12px;
  }

  .topbar h1 {
    font-size: 20px;
  }

  .top-actions {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .top-actions button {
    padding-right: 11px;
    padding-left: 11px;
  }

  .toolbar {
    align-items: stretch;
    flex-wrap: wrap;
  }

  .toolbar input {
    width: 100%;
  }

  .toolbar select {
    width: auto;
    min-width: 132px;
    flex: 1;
  }

  .toolbar-divider {
    display: none;
  }

  .batch-status {
    flex: 1;
  }

  .panel,
  .metric {
    padding: 14px;
  }

  .row.product {
    grid-template-columns: 22px 54px minmax(0, 1fr);
  }

  .row.product > :nth-child(n+4) {
    grid-column: 3;
  }

  .category-row {
    grid-template-columns: 54px minmax(0, 1fr);
  }

  .category-row > :nth-child(n+3) {
    grid-column: 2;
  }

  .variant-block {
    padding: 12px;
  }

  .variant-title-row {
    align-items: flex-start;
  }

  .variant-head {
    display: none;
  }

  .variant-row {
    position: relative;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: 11px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fff;
  }

  .variant-name {
    grid-column: 1 / -1;
    padding-right: 30px;
  }

  .variant-field-label {
    display: block;
    font-size: 11px;
  }

  .variant-row .remove-variant {
    position: absolute;
    top: 9px;
    right: 9px;
  }

  .product-layout,
  .product-layout > *,
  .product-layout .form > * {
    min-width: 0;
  }

  .variant-field input {
    padding: 8px;
    font-size: 12px;
  }

  .order-dialog {
    width: calc(100vw - 16px);
    max-height: calc(100dvh - 16px);
  }

  .dialog-form {
    padding: 16px;
  }

  .order-form-grid {
    grid-template-columns: 1fr 1fr;
  }

  .order-form-grid .wide {
    grid-column: 1 / -1;
  }

  .dialog-summary {
    align-items: stretch;
    flex-direction: column;
  }

  .service-actions,
  .service-upgrade,
  .notification-preview {
    align-items: stretch;
    flex-direction: column;
  }
}