:root {
  --admin-sidebar: #101820;
  --admin-sidebar-2: #16222d;
  --admin-text: #eef3f7;
  --admin-muted: #95a3af;
}

body {
  background: #f3f5f7;
}

.admin-app {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}

.admin-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 22px 18px;
  color: var(--admin-text);
  background: linear-gradient(180deg, var(--admin-sidebar), var(--admin-sidebar-2));
}

.admin-brand {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 4px 4px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.admin-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  color: #161616;
  background: #ffce00;
  font-weight: 900;
}

.admin-brand h1 {
  color: var(--admin-text);
  font-size: 20px;
}

.admin-brand p {
  margin-top: 4px;
  color: var(--admin-muted);
  font-size: 13px;
}

.admin-nav {
  display: grid;
  gap: 10px;
}

.admin-nav-item {
  display: flex;
  min-height: 72px;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 5px;
  padding: 13px 14px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--admin-text);
  background: transparent;
  cursor: pointer;
  text-align: left;
}

.admin-nav-item:hover {
  background: rgba(255, 255, 255, 0.08);
}

.admin-nav-item.active {
  border-color: rgba(255, 206, 0, 0.48);
  background: rgba(255, 206, 0, 0.16);
}

.admin-nav-item span {
  font-size: 15px;
  font-weight: 750;
}

.admin-nav-item small {
  color: var(--admin-muted);
  font-size: 12px;
}

.admin-main {
  min-width: 0;
  overflow: auto;
}

.admin-page {
  display: none;
  min-height: 100vh;
}

.admin-page.active {
  display: grid;
  grid-template-rows: auto 1fr;
}

.admin-header {
  display: flex;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
}

.admin-header div {
  display: grid;
  gap: 4px;
}

.admin-header strong {
  font-size: 20px;
}

.admin-header span {
  color: var(--muted);
  font-size: 13px;
}

.admin-tool-grid {
  display: grid;
  min-height: 0;
}

.coupon-admin-grid,
.suncode-admin-grid,
.luck-admin-grid,
.halfprice-admin-grid,
.kingkong-admin-grid {
  grid-template-columns: 340px 1fr;
}

.coupon-sidebar.embedded,
.sidebar.embedded {
  min-height: 0;
  border-right: 1px solid var(--line);
  background: #fff;
}

.coupon-sidebar.embedded {
  gap: 16px;
  padding: 20px;
}

.coupon-workspace.embedded,
.workspace.embedded {
  min-height: 0;
  background: #f3f5f7;
}

.coupon-workspace.embedded {
  display: grid;
  grid-template-rows: auto 1fr;
}

.coupon-toolbar,
.toolbar {
  min-height: 60px;
}

.coupon-stage,
.canvas-wrap {
  min-height: calc(100vh - 138px);
}

.coupon-preview {
  width: min(100%, 760px);
  height: min(72vh, 760px);
  aspect-ratio: auto;
}

.coupon-preview svg {
  width: min(100%, 560px);
}

.preview {
  width: min(100%, 980px);
}

.luck-stage {
  display: grid;
  min-height: calc(100vh - 138px);
  padding: 24px;
  place-items: center;
}

.luck-preview {
  position: relative;
  width: min(100%, 428px);
  aspect-ratio: 428 / 644;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 48px rgba(23, 32, 38, 0.12);
  overflow: hidden;
}

.luck-slot {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
}

.luck-slot img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.luck-preview .empty-state {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}

.halfprice-stage {
  display: grid;
  min-height: calc(100vh - 138px);
  padding: 24px;
  place-items: center;
  align-content: start;
}

.halfprice-preview {
  position: relative;
  width: min(100%, 345px);
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(45deg, #edf2f5 25%, transparent 25%),
    linear-gradient(-45deg, #edf2f5 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #edf2f5 75%),
    linear-gradient(-45deg, transparent 75%, #edf2f5 75%);
  background-color: #fff;
  background-position:
    0 0,
    0 8px,
    8px -8px,
    -8px 0;
  background-size: 16px 16px;
  box-shadow: 0 18px 48px rgba(23, 32, 38, 0.12);
  overflow: hidden;
}

.halfprice-preview canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.halfprice-preview .empty-state {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}

.kingkong-template-grid {
  grid-template-columns: 1fr;
}

.kingkong-stage {
  display: grid;
  min-height: calc(100vh - 138px);
  padding: 24px;
  place-items: center;
}

.kingkong-preview {
  position: relative;
  width: min(100%, 294px);
  aspect-ratio: 294 / 345;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(45deg, #edf2f5 25%, transparent 25%),
    linear-gradient(-45deg, #edf2f5 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #edf2f5 75%),
    linear-gradient(-45deg, transparent 75%, #edf2f5 75%);
  background-color: #fff;
  background-position:
    0 0,
    0 8px,
    8px -8px,
    -8px 0;
  background-size: 16px 16px;
  box-shadow: 0 18px 48px rgba(23, 32, 38, 0.12);
  overflow: hidden;
}

.kingkong-preview canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.kingkong-preview .empty-state {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}

.halfprice-preview.is-grid {
  width: 100%;
  max-width: none;
  aspect-ratio: auto;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  overflow: visible;
}

.halfprice-preview.is-grid .empty-state {
  position: static;
  min-height: 345px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(45deg, #edf2f5 25%, transparent 25%),
    linear-gradient(-45deg, #edf2f5 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #edf2f5 75%),
    linear-gradient(-45deg, transparent 75%, #edf2f5 75%);
  background-color: #fff;
  background-position:
    0 0,
    0 8px,
    8px -8px,
    -8px 0;
  background-size: 16px 16px;
}

.halfprice-preview-grid {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  align-items: start;
}

.halfprice-preview-card {
  min-width: 0;
  margin: 0;
}

.halfprice-preview-thumb {
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(45deg, #edf2f5 25%, transparent 25%),
    linear-gradient(-45deg, #edf2f5 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #edf2f5 75%),
    linear-gradient(-45deg, transparent 75%, #edf2f5 75%);
  background-color: #fff;
  background-position:
    0 0,
    0 8px,
    8px -8px,
    -8px 0;
  background-size: 16px 16px;
  box-shadow: 0 12px 30px rgba(23, 32, 38, 0.1);
  overflow: hidden;
}

.halfprice-preview-card figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (max-width: 980px) {
  .admin-app {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    position: sticky;
    top: 0;
    z-index: 10;
    gap: 12px;
    padding: 14px;
  }

  .admin-brand {
    padding-bottom: 12px;
  }

  .admin-nav {
    grid-template-columns: 1fr 1fr;
  }

  .coupon-admin-grid,
  .suncode-admin-grid,
  .luck-admin-grid,
  .halfprice-admin-grid,
  .kingkong-admin-grid {
    grid-template-columns: 1fr;
  }

  .coupon-sidebar.embedded,
  .sidebar.embedded {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .coupon-stage,
  .canvas-wrap,
  .luck-stage,
  .halfprice-stage,
  .kingkong-stage {
    min-height: 58vh;
  }
}

@media (max-width: 560px) {
  .admin-nav {
    grid-template-columns: 1fr;
  }
}