* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text-main);
  font-family: "Pretendard", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

body.has-quiz-admin-context {
  padding: 16px;
}

.hidden {
  display: none !important;
}

.loading-screen,
.auth-overlay {
  position: fixed;
  inset: 0;
  z-index: 9000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: var(--bg);
  color: var(--text-main);
  text-align: center;
}

.auth-overlay {
  z-index: 8000;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 999px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.auth-card {
  width: min(100%, 400px);
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
  box-shadow: var(--shadow-lg, 0 18px 45px rgba(15, 23, 42, 0.18));
}

.auth-icon {
  margin-bottom: 16px;
  font-size: 2.5rem;
}

#main-content {
  max-width: 1220px;
  margin: 0 auto;
}

.share-hero,
.toolbar-panel,
.metric-card,
.list-panel,
.preview-panel {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
  box-shadow: var(--shadow-sm, 0 8px 24px rgba(15, 23, 42, 0.08));
}

.share-hero {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-top: 14px;
  padding: 18px;
}

.eyebrow {
  margin-bottom: 6px;
  color: var(--primary);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.share-hero h1,
.panel-head h2 {
  margin: 0;
}

.share-hero h1 {
  font-size: clamp(1.6rem, 2.6vw, 2.25rem);
  line-height: 1.1;
}

.share-hero p,
.panel-head p,
.metric-label,
.post-meta,
.post-description,
.preview-meta,
.question-answer,
.status-line {
  color: var(--text-sub);
}

.share-hero p {
  max-width: 680px;
  margin: 8px 0 0;
  line-height: 1.55;
}

.share-hero__actions,
.preview-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.share-hero__actions {
  justify-content: flex-end;
}

.primary-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 13px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

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

.secondary-btn {
  background: var(--card-bg);
  color: var(--text-main);
}

.primary-btn:disabled,
.secondary-btn:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.toolbar-panel {
  display: grid;
  grid-template-columns: minmax(280px, 1.5fr) repeat(4, minmax(140px, 1fr));
  gap: 10px;
  margin-top: 12px;
  padding: 12px;
}

.search-field,
.filter-field {
  display: grid;
  gap: 6px;
}

.search-field label,
.filter-field label {
  color: var(--text-sub);
  font-size: 0.76rem;
  font-weight: 800;
}

.search-field input,
.filter-field select {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg, var(--bg));
  color: var(--text-main);
  font: inherit;
  padding: 8px 10px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.metric-card {
  padding: 13px;
}

.metric-value {
  display: block;
  font-size: 1.55rem;
  font-weight: 900;
}

.metric-label {
  display: block;
  margin-top: 2px;
  font-size: 0.82rem;
  font-weight: 700;
}

.status-line {
  min-height: 22px;
  margin: 10px 2px;
  font-size: 0.9rem;
  font-weight: 700;
}

.status-line.error {
  color: #dc2626;
}

.share-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.9fr);
  gap: 12px;
  align-items: start;
}

.list-panel,
.preview-panel {
  min-width: 0;
  padding: 14px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.panel-head h2 {
  font-size: 1.04rem;
}

.panel-head p {
  margin: 4px 0 0;
  font-size: 0.86rem;
}

.share-list {
  display: grid;
  gap: 8px;
  max-height: 64vh;
  overflow: auto;
  padding-right: 2px;
}

.share-list.empty,
.preview-area.empty {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 180px;
  border: 1px dashed var(--border);
  border-radius: 8px;
  color: var(--text-sub);
  text-align: center;
}

.post-card {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text-main);
  padding: 12px;
  text-align: left;
  cursor: pointer;
}

.post-card.is-selected {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 22%, transparent);
}

.post-title-row,
.post-foot-row,
.preview-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.post-title,
.preview-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 900;
  line-height: 1.35;
}

.status-chip,
.tag-chip {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card-bg);
  font-size: 0.75rem;
  font-weight: 800;
  white-space: nowrap;
}

.status-chip.is-imported {
  border-color: color-mix(in srgb, var(--primary) 44%, var(--border));
  color: var(--primary);
}

.status-chip.is-update {
  border-color: #f59e0b;
  color: #b45309;
}

.post-meta,
.preview-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  margin-top: 7px;
  font-size: 0.8rem;
  font-weight: 700;
}

.post-description {
  margin: 8px 0 0;
  line-height: 1.45;
  font-size: 0.86rem;
}

.post-foot-row {
  margin-top: 10px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.preview-area {
  display: grid;
  gap: 10px;
}

.preview-summary,
.question-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  padding: 12px;
}

.preview-description {
  margin: 10px 0 0;
  line-height: 1.55;
}

.question-list {
  display: grid;
  gap: 8px;
  max-height: 46vh;
  overflow: auto;
}

.question-title {
  margin: 0 0 8px;
  font-weight: 900;
  line-height: 1.4;
}

.question-options {
  margin: 0;
  padding-left: 20px;
}

.question-options li {
  margin-top: 3px;
}

.question-answer {
  margin-top: 8px;
  font-size: 0.82rem;
  font-weight: 800;
}

.preview-actions {
  margin-top: 12px;
}

.theme-toggle-btn {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  cursor: pointer;
  font-size: 1.5rem;
}

@media (max-width: 1100px) {
  .toolbar-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .search-field {
    grid-column: 1 / -1;
  }

  .share-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  body.has-quiz-admin-context {
    padding: 10px;
  }

  .share-hero,
  .toolbar-panel,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .share-hero {
    flex-direction: column;
  }

  .share-hero__actions,
  .preview-actions {
    width: 100%;
  }

  .primary-btn,
  .secondary-btn {
    flex: 1 1 auto;
  }
}