:root {
  --bg: #f3f4f6;
  --bg-2: #e5e7eb;
  --card: rgba(255, 255, 255, 0.82);
  --card-solid: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --primary: #0f766e;
  --primary-hover: #0e857b;
  --border: rgba(15, 23, 42, 0.12);
  --shadow: 0 16px 34px rgba(15, 23, 42, 0.11);
  --shadow-soft: 0 6px 16px rgba(15, 23, 42, 0.07);
}

body.dark {
  --bg: #111827;
  --bg-2: #1f2937;
  --card: rgba(17, 24, 39, 0.84);
  --card-solid: #111827;
  --text: #f8fafc;
  --muted: #94a3b8;
  --primary: #14b8a6;
  --primary-hover: #2dd4bf;
  --border: rgba(148, 163, 184, 0.28);
  --shadow: 0 22px 44px rgba(2, 8, 23, 0.5);
  --shadow-soft: 0 8px 22px rgba(2, 8, 23, 0.32);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "IBM Plex Sans", "PingFang SC", "Segoe UI", sans-serif;
  background:
    radial-gradient(1000px 480px at -10% -10%, rgba(15, 118, 110, 0.16), transparent 60%),
    radial-gradient(980px 440px at 110% -20%, rgba(15, 23, 42, 0.14), transparent 62%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
  transition: background 0.28s ease, color 0.28s ease;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px 20px 36px;
}

.card {
  position: relative;
  margin-top: 16px;
  padding: 20px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.card h1,
.card h2,
.card h3 {
  margin-top: 0;
}

.hero-card h1 {
  font-size: 1.65rem;
  letter-spacing: 0.2px;
  margin-bottom: 10px;
}

.notice {
  margin: 8px 0 10px;
  padding: 8px 10px;
  border-radius: 10px;
  color: #fff;
  background: linear-gradient(180deg, #ef4444, #dc2626);
  font-size: 0.9rem;
}

.notice-success {
  background: linear-gradient(180deg, #0f766e, #0d9488);
}

.notice-info {
  background: linear-gradient(180deg, #2563eb, #1d4ed8);
}

.notice-loading {
  background: linear-gradient(180deg, #0f766e, #0f766e);
}

.action-card,
.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.top-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.top-strip-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.list-title {
  margin-bottom: 6px;
  font-size: 1.3rem;
}

.search-intro {
  margin: 0 0 12px;
}

.search-primary {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 10px;
}

.search-main {
  margin-top: 0;
  flex: 1 1 auto;
  font-size: 1.04rem;
  padding: 12px 13px;
}

.search-btn {
  min-width: 114px;
}

.filter-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.filter-panel {
  border: 1px solid color-mix(in srgb, var(--border) 92%, transparent);
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 14px;
  background: color-mix(in srgb, var(--card-solid) 94%, transparent);
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.field-wrap input,
.field-wrap select {
  margin-top: 6px;
}

.field-label {
  display: inline-block;
  font-size: 0.84rem;
  color: var(--muted);
}

.sort-note {
  margin: 10px 0;
}

.post-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.grow {
  flex: 1 1 280px;
}

.compact {
  width: 160px;
}

button {
  border: none;
  border-radius: 12px;
  background: linear-gradient(180deg, var(--primary), var(--primary-hover));
  color: #fff;
  font-weight: 600;
  letter-spacing: 0.2px;
  padding: 9px 14px;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.18s ease, filter 0.18s ease;
  box-shadow: 0 8px 16px rgba(10, 132, 255, 0.28);
}

button:hover {
  transform: translateY(-1px);
  filter: brightness(1.04);
}

button:active {
  transform: translateY(0);
}

button:disabled {
  opacity: 0.48;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  background: linear-gradient(180deg, #64748b, #4b5563);
  box-shadow: 0 7px 14px rgba(71, 85, 105, 0.26);
}

.btn-small {
  padding: 6px 10px;
  border-radius: 10px;
}

.btn-danger {
  background: linear-gradient(180deg, #ef4444, #dc2626);
  box-shadow: 0 7px 14px rgba(220, 38, 38, 0.26);
}

input,
textarea,
select {
  width: 100%;
  margin-top: 8px;
  padding: 10px 11px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--card-solid) 88%, transparent);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
textarea:focus,
select:focus {
  border-color: color-mix(in srgb, var(--primary) 65%, #ffffff);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 26%, transparent);
}

.post-card {
  margin-bottom: 0;
  padding: 14px;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--border) 90%, transparent);
  background: color-mix(in srgb, var(--card-solid) 92%, transparent);
  box-shadow: 0 3px 10px rgba(15, 23, 42, 0.05);
}

.post-card.pinned {
  border-color: rgba(245, 158, 11, 0.62);
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.2), 0 8px 18px rgba(245, 158, 11, 0.16);
}

.post-card h3 {
  margin: 0;
  font-size: 1.06rem;
}

.post-head {
  margin-bottom: 6px;
}

.post-excerpt {
  margin: 0 0 10px;
  color: color-mix(in srgb, var(--text) 84%, var(--muted));
  line-height: 1.7;
}

.post-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

.meta-chip {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 0.8rem;
  color: color-mix(in srgb, var(--text) 88%, #ffffff);
  background: color-mix(in srgb, var(--card-solid) 78%, var(--bg));
  border: 1px solid color-mix(in srgb, var(--border) 88%, transparent);
}

.badge-pinned {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 7px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #9a3412;
  background: #fed7aa;
}

.post-meta {
  margin-top: 4px;
}

.preview {
  min-height: 92px;
  border-radius: 14px;
  border: 1px dashed color-mix(in srgb, var(--muted) 38%, transparent);
  background: color-mix(in srgb, var(--card-solid) 90%, transparent);
  padding: 16px 18px;
  line-height: 1.75;
  word-break: break-word;
  overflow-wrap: break-word;
}

.detail-preview {
  max-width: 760px;
  margin: 0 auto;
}

.preview > *:first-child { margin-top: 0; }
.preview > *:last-child  { margin-bottom: 0; }

.preview h1,
.preview h2,
.preview h3,
.preview h4,
.preview h5,
.preview h6 {
  margin: 1.2em 0 0.5em;
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
}
.preview h1 { font-size: 1.7rem; border-bottom: 2px solid var(--border); padding-bottom: 0.3em; }
.preview h2 { font-size: 1.35rem; border-bottom: 1px solid var(--border); padding-bottom: 0.2em; }
.preview h3 { font-size: 1.15rem; }
.preview h4 { font-size: 1.05rem; }
.preview h5,
.preview h6 { font-size: 0.98rem; color: var(--muted); }

.preview p { margin: 0.75em 0; }

.preview ul,
.preview ol { padding-left: 1.6em; margin: 0.6em 0; }
.preview li { margin: 0.3em 0; }
.preview li > p { margin: 0.3em 0; }

.preview blockquote {
  margin: 0.9em 0;
  padding: 0.5em 1em;
  border-left: 4px solid var(--primary);
  background: color-mix(in srgb, var(--card-solid) 82%, transparent);
  color: var(--muted);
  border-radius: 0 8px 8px 0;
}
.preview blockquote > p { margin: 0; }

.preview code {
  font-family: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;
  font-size: 0.87em;
  background: color-mix(in srgb, var(--bg-2) 85%, transparent);
  padding: 0.15em 0.45em;
  border-radius: 5px;
}
.preview pre {
  margin: 0.9em 0;
  border-radius: 10px;
  overflow-x: auto;
}
.preview pre code {
  background: transparent;
  padding: 0;
  font-size: 0.9rem;
  border-radius: 0;
}

.preview table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.9em 0;
  font-size: 0.95rem;
}
.preview th,
.preview td {
  padding: 7px 12px;
  border: 1px solid var(--border);
  text-align: left;
}
.preview th {
  background: color-mix(in srgb, var(--card-solid) 78%, var(--bg));
  font-weight: 600;
}
.preview tr:nth-child(even) td {
  background: color-mix(in srgb, var(--card-solid) 92%, var(--bg));
}

.preview a {
  color: var(--primary);
  text-decoration: none;
}
.preview a:hover { text-decoration: underline; }

.preview hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.4em 0;
}

.preview img {
  max-width: 100%;
  border-radius: 8px;
}

.label {
  font-size: 0.86rem;
  color: var(--muted);
}

.comment-box {
  margin: 8px 0;
  padding: 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--card-solid) 92%, transparent);
}

.comment-section {
  margin-top: 16px;
}

.comment-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.comment-editor {
  margin-top: 12px;
}

.comment-form-hint {
  margin-bottom: 8px;
}

.comment-status {
  color: var(--muted);
}

.comment-editor-collapsed {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px dashed color-mix(in srgb, var(--muted) 48%, transparent);
  color: var(--muted);
  background: color-mix(in srgb, var(--card-solid) 88%, transparent);
  cursor: text;
  font-size: 0.95rem;
  transition: border-color 0.18s ease, background 0.18s ease;
}

.comment-editor-collapsed:hover {
  border-color: color-mix(in srgb, var(--primary) 55%, transparent);
  background: color-mix(in srgb, var(--card-solid) 94%, transparent);
}

.load-more-row {
  margin-top: 12px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.toggle-line {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}

.toggle-line input[type="checkbox"] {
  width: auto;
  margin: 0;
}

.editor-shell {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.editor-toolbar {
  position: sticky;
  top: 12px;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid color-mix(in srgb, var(--border) 90%, transparent);
  background: color-mix(in srgb, var(--card-solid) 94%, transparent);
  box-shadow: var(--shadow-soft);
}

.editor-toolbar h2 {
  margin: 2px 0 6px;
}

.editor-intro {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.editor-toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.editor-status-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  padding: 0 4px;
}

.editor-grid {
  display: grid;
  gap: 14px;
}

.editor-grid-split {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
}

.editor-grid-stacked {
  grid-template-columns: 1fr;
}

.editor-pane {
  min-width: 0;
  padding: 16px;
  border-radius: 16px;
  border: 1px solid color-mix(in srgb, var(--border) 90%, transparent);
  background: color-mix(in srgb, var(--card-solid) 92%, transparent);
  box-shadow: 0 3px 10px rgba(15, 23, 42, 0.05);
}

.editor-preview-pane {
  display: flex;
  flex-direction: column;
}

.editor-section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}

.editor-section-header h3 {
  margin-bottom: 0;
}

.editor-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.editor-field-wide {
  grid-column: 1 / -1;
}

.editor-textarea {
  min-height: 420px;
  resize: vertical;
}

.editor-preview {
  min-height: 420px;
}

.editor-toolbar-actions button {
  white-space: nowrap;
}

.hint-banner {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(37, 99, 235, 0.18);
  background: rgba(37, 99, 235, 0.08);
  color: color-mix(in srgb, var(--text) 92%, #ffffff);
  line-height: 1.6;
}

.hint-banner strong {
  flex-shrink: 0;
  color: #1d4ed8;
}

.hint-banner-subtle {
  border-color: color-mix(in srgb, var(--border) 88%, transparent);
  background: color-mix(in srgb, var(--card-solid) 94%, transparent);
}

.editor-empty-state {
  min-height: 220px;
}

.empty-state {
  padding: 16px;
  border-radius: 12px;
  border: 1px dashed color-mix(in srgb, var(--muted) 36%, transparent);
  color: var(--muted);
  background: color-mix(in srgb, var(--card-solid) 90%, transparent);
}

.empty-state-title {
  color: var(--text);
  font-weight: 700;
  margin-bottom: 6px;
}

.empty-state-body {
  line-height: 1.6;
}

.list-summary {
  margin: 2px 0 12px;
}

.detail-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.detail-hero {
  margin-bottom: 18px;
}

.detail-hero h2 {
  margin-bottom: 8px;
  font-size: clamp(1.5rem, 2.8vw, 2.1rem);
}

.detail-subtitle {
  margin: 0 0 12px;
  color: var(--muted);
  line-height: 1.6;
}

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

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 8px;
}

.pagination {
  margin-top: 12px;
  display: flex;
  gap: 8px;
}

@media (max-width: 768px) {
  .container {
    padding: 16px 12px 24px;
  }

  .card {
    padding: 14px;
    border-radius: 14px;
  }

  .search-primary {
    flex-direction: column;
    align-items: stretch;
  }

  .search-btn {
    width: 100%;
  }

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

  .top-strip {
    flex-direction: column;
    align-items: flex-start;
  }

  .compact,
  .grow {
    width: 100%;
    flex: 1 1 auto;
  }

  input,
  textarea {
    font-size: 14px;
  }

  button {
    padding: 8px 11px;
  }

  .detail-topbar,
  .section-heading,
  .comment-header,
  .editor-toolbar,
  .editor-section-header,
  .hint-banner {
    flex-direction: column;
    align-items: stretch;
  }

  .detail-preview {
    max-width: 100%;
    padding: 14px;
    font-size: 0.96rem;
  }

  .preview pre {
    margin-left: -2px;
    margin-right: -2px;
  }

  .preview table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  .comment-actions > * {
    flex: 1 1 100%;
  }

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

  .editor-toolbar {
    top: 8px;
    padding: 12px;
  }

  .editor-toolbar-actions > * {
    flex: 1 1 calc(50% - 8px);
  }

  .editor-textarea,
  .editor-preview {
    min-height: 280px;
  }
}

/* === Compact App Header === */
.app-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  margin-top: 0;
  position: relative;
  z-index: 300;
  overflow: visible;
}
.brand-cluster {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.brand-mark {
  font-weight: 700;
  font-size: 0.95rem;
  white-space: nowrap;
  color: var(--text);
  flex-shrink: 0;
}
.app-version-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 9px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2px;
  color: #0f766e;
  background: rgba(20, 184, 166, 0.14);
  border: 1px solid rgba(20, 184, 166, 0.26);
}
.page-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px dashed color-mix(in srgb, var(--border) 80%, transparent);
}
.center-search {
  flex: 1 1 auto;
  display: flex;
  gap: 8px;
  align-items: center;
}
.center-search-input {
  flex: 1 1 auto;
  margin-top: 0;
  font-size: 1rem;
  padding: 9px 12px;
}
.center-search-btn {
  flex-shrink: 0;
  min-width: 72px;
}
.user-area {
  position: relative;
  flex-shrink: 0;
}
.user-area-trigger {
  display: flex;
  align-items: center;
  gap: 7px;
  background: transparent;
  box-shadow: none;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 99px;
  color: var(--text);
}
.avatar-placeholder {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.user-status-text {
  font-size: 0.84rem;
  color: var(--text);
}
.user-popover {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 240px;
  background: var(--card-solid);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 14px;
  z-index: 200;
}
.popover-section {
  margin-bottom: 10px;
}
.popover-section:last-child {
  margin-bottom: 0;
}
.popover-section-label {
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 8px;
}
.secondary-actions {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.compact-note {
  margin: 8px 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}
.header-notice {
  position: absolute;
  bottom: -40px;
  left: 0;
  right: 0;
  margin: 0;
  border-radius: 0 0 12px 12px;
  z-index: 10;
}
@media (max-width: 768px) {
  .brand-mark {
    display: none;
  }
  .brand-cluster {
    min-width: 0;
  }
  .app-header {
    padding: 8px 10px;
    gap: 8px;
  }

  .center-search {
    min-width: 0;
  }

  .user-popover {
    right: 0;
    left: auto;
    width: min(280px, calc(100vw - 24px));
  }
}

@media (max-width: 414px) {
  .container {
    padding: 14px 10px 20px;
  }

  .app-header {
    flex-wrap: wrap;
  }

  .center-search {
    order: 3;
    width: 100%;
  }

  .center-search-btn,
  .search-btn,
  .load-more-row button,
  .section-heading button {
    width: 100%;
  }

  .detail-meta .meta-chip {
    width: 100%;
  }

  .editor-toolbar-actions > * {
    flex: 1 1 100%;
  }

  .page-meta-row {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 320px) {
  .card {
    padding: 12px;
  }

  .post-card {
    padding: 12px;
  }

  .user-status-text {
    max-width: 88px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}