:root {
  --dc-font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --dc-font-number: "Space Grotesk", "Noto Sans SC", sans-serif;
  --dc-font-display: var(--dc-font-number);
  --dc-ink: #26221d;
  --dc-muted: #6b645a;
  --dc-bg: #e9e0cf;
  --dc-panel: #f8f3e8;
  --dc-panel-2: #efe7d6;
  --dc-border: #d6c9b2;
  --dc-input-bg: #ffffff;
  --dc-input-border: #c3b499;
  --dc-accent: #e8622c;
  --dc-accent-hover: #d4541f;
  --dc-accent-2: #1f7a8c;
  --dc-accent-3: #f2c94c;
  --dc-slate: #1f2a33;
  --dc-slate-2: #243140;
  --dc-slate-3: #2d3b4b;
  --dc-white: #ffffff;
  --dc-radius: 12px;
  --dc-radius-sm: 8px;
  --dc-shadow: 0 1px 3px rgba(46, 36, 25, 0.07);
  --dc-control-height: 2.55rem;
}

html {
  font-size: 15px;
}

@media (min-width: 992px) {
  html {
    font-size: 16px;
  }
}

* {
  box-sizing: border-box;
}

body {
  font-family: var(--dc-font-body);
  color: var(--dc-ink);
  background: var(--dc-bg);
  min-height: 100vh;
}

a {
  color: inherit;
}

.text-muted {
  color: var(--dc-muted) !important;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
  font-family: var(--dc-font-body);
  font-weight: 600;
}

.navbar {
  border-bottom: 1px solid var(--dc-border);
  background: var(--dc-panel);
}

.navbar-brand {
  font-family: var(--dc-font-number);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border-radius: var(--dc-radius-sm);
  padding: 0.5rem 1rem;
  min-height: var(--dc-control-height);
  line-height: 1.4;
  white-space: nowrap;
}

.btn-sm {
  min-height: 0;
  padding: 0.3rem 0.65rem;
  white-space: normal;
}

.btn-lg {
  min-height: 0;
  padding: 0.65rem 1.25rem;
}

.btn-accent {
  background: var(--dc-accent);
  border: 1px solid var(--dc-accent);
  color: #fff;
}

.btn-accent:hover,
.btn-accent:focus {
  background: var(--dc-accent-hover);
  border-color: var(--dc-accent-hover);
  color: #fff;
}

.btn-accent:disabled {
  background: var(--dc-accent);
  border-color: var(--dc-accent);
  color: #fff;
  opacity: 0.6;
}

.btn-outline-accent {
  border: 1px solid var(--dc-accent);
  color: var(--dc-accent);
  background: transparent;
}

.btn-outline-accent:hover,
.btn-outline-accent:focus {
  background: var(--dc-accent);
  border-color: var(--dc-accent);
  color: #fff;
}

.btn-outline-secondary {
  border: 1px solid var(--dc-input-border);
  color: var(--dc-ink);
  background: transparent;
}

.btn-outline-secondary:hover,
.btn-outline-secondary:focus {
  background: var(--dc-panel-2);
  border-color: #a99a7d;
  color: var(--dc-ink);
}

.hero {
  padding: 3.5rem 0 2.5rem;
}

.hero-title {
  font-size: clamp(1.9rem, 2vw + 1.4rem, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
}

.hero-card {
  background: var(--dc-panel);
  border: 1px solid var(--dc-border);
  border-radius: var(--dc-radius);
  padding: 1.5rem;
  box-shadow: var(--dc-shadow);
}

.feature-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.feature-tile {
  background: var(--dc-panel);
  border: 1px solid var(--dc-border);
  border-radius: var(--dc-radius);
  padding: 1.25rem;
  box-shadow: var(--dc-shadow);
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--dc-radius-sm);
  display: grid;
  place-items: center;
  background: rgba(31, 122, 140, 0.12);
  color: var(--dc-accent-2);
  font-size: 1.1rem;
  margin-bottom: 0.85rem;
}

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 248px;
  flex: 0 0 auto;
  background: var(--dc-slate);
  color: #d5dde6;
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.sidebar .brand {
  font-family: var(--dc-font-number);
  font-weight: 700;
  font-size: 1.2rem;
  color: #fff;
  text-decoration: none;
}

.sidebar .tagline {
  color: #8b99a8;
  font-size: 0.8rem;
}

.sidebar .nav-link {
  color: #c3cedb;
  border-radius: var(--dc-radius-sm);
  padding: 0.55rem 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
}

.menu-unread-dot,
.message-unread-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #ef4444;
  display: inline-block;
  flex: 0 0 auto;
}

.sidebar .nav-link.active,
.sidebar .nav-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.sidebar .nav-section-title {
  font-size: 0.72rem;
  color: #7b8a9a;
}

.shell-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--dc-border);
  background: var(--dc-panel);
}

.topbar-title {
  font-weight: 600;
  font-size: 1.15rem;
}

.topbar .btn {
  min-height: 0;
}

.content-area {
  flex: 1;
  padding: 1.5rem;
  min-width: 0;
}

.stat-card {
  background: var(--dc-panel);
  border: 1px solid var(--dc-border);
  border-radius: var(--dc-radius);
  padding: 1.25rem;
  box-shadow: var(--dc-shadow);
  min-width: 0;
}

.stat-label {
  color: var(--dc-muted);
  font-size: 0.88rem;
}

.stat-value {
  font-family: var(--dc-font-number);
  font-size: clamp(1.5rem, 1rem + 1.2vw, 1.9rem);
  margin: 0.35rem 0;
  overflow-wrap: anywhere;
}

.panel {
  background: var(--dc-panel);
  border: 1px solid var(--dc-border);
  border-radius: var(--dc-radius);
  padding: 1.25rem;
  box-shadow: var(--dc-shadow);
  min-width: 0;
}

.document-markdown h1,
.document-markdown h2,
.document-markdown h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

.document-markdown p,
.document-markdown li {
  line-height: 1.8;
}

.document-markdown ul {
  padding-left: 1.25rem;
}

.document-markdown pre {
  overflow-x: auto;
}

.document-markdown table {
  display: block;
  overflow-x: auto;
}

.quota-mini-card,
.quota-day-card,
.quota-overview-item {
  background: var(--dc-panel-2);
  border: 1px solid var(--dc-border);
  border-radius: 10px;
  padding: 0.9rem 1rem;
  min-width: 0;
}

.quota-mini-label,
.quota-progress-label {
  color: var(--dc-muted);
  font-size: 0.82rem;
}

.quota-mini-value,
.quota-group-highlight {
  font-family: var(--dc-font-number);
  font-size: 1.4rem;
  margin: 0.3rem 0;
  overflow-wrap: anywhere;
}

.quota-progress-alt {
  background: var(--dc-accent-2);
}

.chart-shell {
  position: relative;
  min-height: 320px;
}

.analytics-filter-row .form-label {
  margin-bottom: 0.5rem;
}

.analytics-superadmin-table .dataTables_wrapper .dataTables_filter input,
.analytics-superadmin-table .dataTables_wrapper .dataTables_length select,
.app-management-table .dataTables_wrapper .dataTables_filter input,
.app-management-table .dataTables_wrapper .dataTables_length select {
  border-radius: var(--dc-radius-sm);
  border: 1px solid var(--dc-input-border);
  background: var(--dc-input-bg);
  color: var(--dc-ink);
}

.analytics-superadmin-table .dataTables_wrapper .dataTables_filter input,
.app-management-table .dataTables_wrapper .dataTables_filter input {
  padding: 0.4rem 0.7rem;
}

.analytics-superadmin-table .dataTables_wrapper .dataTables_info,
.analytics-superadmin-table .dataTables_wrapper .dataTables_length,
.analytics-superadmin-table .dataTables_wrapper .dataTables_filter,
.app-management-table .dataTables_wrapper .dataTables_info,
.app-management-table .dataTables_wrapper .dataTables_length,
.app-management-table .dataTables_wrapper .dataTables_filter {
  color: var(--dc-muted);
  margin-bottom: 0.9rem;
}

.analytics-superadmin-table .dataTables_wrapper .dataTables_paginate .paginate_button,
.app-management-table .dataTables_wrapper .dataTables_paginate .paginate_button {
  border-radius: var(--dc-radius-sm);
  border: 1px solid transparent;
}

.analytics-superadmin-table .dataTables_wrapper .dataTables_paginate .paginate_button.current,
.analytics-superadmin-table .dataTables_wrapper .dataTables_paginate .paginate_button.current:hover,
.app-management-table .dataTables_wrapper .dataTables_paginate .paginate_button.current,
.app-management-table .dataTables_wrapper .dataTables_paginate .paginate_button.current:hover {
  background: var(--dc-panel-2);
  border-color: var(--dc-border);
  color: var(--dc-ink) !important;
}

.app-management-table .dataTables_wrapper .dataTables_paginate .paginate_button:hover,
.analytics-superadmin-table .dataTables_wrapper .dataTables_paginate .paginate_button:hover {
  background: rgba(232, 98, 44, 0.1);
  border-color: rgba(232, 98, 44, 0.25);
  color: var(--dc-ink) !important;
}

.app-management-table .dataTables_wrapper .dataTables_processing {
  border-radius: 10px;
  border: 1px solid var(--dc-border);
  background: var(--dc-panel);
  color: var(--dc-ink);
}

.app-management-table .dataTables_wrapper .dataTables_filter label {
  width: 100%;
}

.app-management-table .dataTables_wrapper .dataTables_filter input {
  width: min(100%, 300px);
  margin-left: 0;
}

.panel-subtle {
  background: var(--dc-panel-2);
  border: 1px dashed var(--dc-border);
  box-shadow: none;
}

.analytics-app-link {
  font-weight: 600;
  color: var(--dc-accent-2);
}

.analytics-app-link:hover {
  color: var(--dc-accent);
}

.analytics-app-detail-grid .fw-semibold {
  overflow-wrap: anywhere;
}

.review-action-cell {
  min-width: 300px;
}

.review-action-stack {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.review-action-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.5rem;
  align-items: center;
}

.review-action-row-top {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.review-action-row .form-control {
  min-width: 0;
}

.review-action-row .form-select {
  min-width: 0;
}

.review-action-row .review-template-select {
  grid-column: 1 / -1;
}

.review-link-row {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.review-link-action {
  padding: 0.25rem 0.5rem;
  line-height: 1;
  flex: 0 0 auto;
}

@media (max-width: 767px) {
  .review-action-cell {
    min-width: 260px;
  }

  .review-action-row {
    grid-template-columns: 1fr;
  }

  .review-action-row button,
  .review-action-row-top button,
  .review-action-row-top form {
    width: 100%;
  }

  .review-action-row-top {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}

.progress {
  background: rgba(232, 98, 44, 0.14);
}

.progress-bar {
  background: var(--dc-accent);
}

.badge-soft,
.badge-ok,
.badge-warn,
.badge-danger,
.badge-muted,
.badge-disabled {
  display: inline-block;
  border-radius: 999px;
  padding: 0.25rem 0.65rem;
  font-weight: 600;
  font-size: 0.82rem;
  white-space: nowrap;
}

.badge-soft {
  background: rgba(31, 122, 140, 0.14);
  color: var(--dc-accent-2);
}

.badge-ok {
  background: rgba(52, 211, 153, 0.18);
  color: #0f766e;
}

.badge-warn {
  background: rgba(242, 201, 76, 0.28);
  color: #8a6104;
}

.badge-danger {
  background: rgba(244, 63, 94, 0.16);
  color: #be123c;
}

.badge-muted {
  background: rgba(148, 163, 184, 0.25);
  color: #4b5563;
}

.badge-disabled {
  background: rgba(15, 23, 42, 0.18);
  color: #0f172a;
}

.app-id-chip {
  background: var(--dc-panel-2);
  border: 1px solid var(--dc-border);
  border-radius: 999px;
  padding: 0.2rem 0.65rem;
  font-weight: 600;
  font-size: 0.85rem;
  white-space: nowrap;
}

.table {
  margin-bottom: 0;
}

.table thead th {
  color: var(--dc-muted);
  font-weight: 600;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--dc-border);
  white-space: nowrap;
}

.table tbody tr {
  border-bottom: 1px solid rgba(214, 201, 178, 0.65);
}

.table td {
  overflow-wrap: anywhere;
}

.form-control,
.form-select {
  border-radius: var(--dc-radius-sm);
  border: 1px solid var(--dc-input-border);
  padding: 0.5rem 0.85rem;
  min-height: var(--dc-control-height);
  background-color: var(--dc-input-bg);
  color: var(--dc-ink);
}

.form-control:focus,
.form-select:focus {
  border-color: rgba(232, 98, 44, 0.55);
  box-shadow: 0 0 0 0.2rem rgba(232, 98, 44, 0.12);
}

textarea.form-control {
  min-height: 0;
}

.form-control-sm,
.form-select-sm {
  min-height: 0;
  padding: 0.3rem 0.6rem;
}

.text-prewrap {
  white-space: pre-wrap;
}

.message-conversation-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.message-conversation-item {
  display: block;
  padding: 0.9rem 1rem;
  border: 1px solid var(--dc-border);
  border-radius: var(--dc-radius);
  background: var(--dc-panel-2);
  transition: border-color 0.15s ease;
  text-decoration: none;
}

.message-conversation-item:hover {
  border-color: rgba(232, 98, 44, 0.45);
}

.message-thread {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.message-bubble-row {
  display: flex;
}

.message-bubble-row.mine {
  justify-content: flex-end;
}

.message-bubble-row.theirs {
  justify-content: flex-start;
}

.message-bubble {
  width: min(100%, 680px);
  border-radius: var(--dc-radius);
  padding: 0.9rem 1rem;
  border: 1px solid var(--dc-border);
  min-width: 0;
}

.message-bubble.mine {
  background: #fdf1e8;
}

.message-bubble.theirs {
  background: #f4f9fa;
}

.message-markdown > :last-child {
  margin-bottom: 0;
}

.message-markdown pre {
  background: #1f2a33;
  color: #e5edf5;
  padding: 0.85rem 1rem;
  border-radius: var(--dc-radius-sm);
  overflow-x: auto;
}

.message-markdown code {
  font-size: 0.92em;
}

.message-markdown blockquote {
  border-left: 3px solid var(--dc-accent);
  padding-left: 0.9rem;
  color: var(--dc-muted);
  margin-left: 0;
}

.message-markdown img {
  display: none;
}

.alert {
  border-radius: 10px;
  border: 1px solid rgba(214, 201, 178, 0.9);
}

.modal-content {
  border-radius: var(--dc-radius);
  border: 1px solid var(--dc-border);
}

.dropdown-menu {
  border-radius: 10px;
  border: 1px solid var(--dc-border);
  box-shadow: 0 8px 24px rgba(46, 36, 25, 0.12);
}

.shell-footer {
  padding: 1rem 1.5rem 1.5rem;
  color: var(--dc-muted);
  font-size: 0.85rem;
}

.offcanvas.sidebar-offcanvas {
  background: var(--dc-slate);
  color: #d5dde6;
}

.offcanvas.sidebar-offcanvas .nav-link {
  color: #d5dde6;
  border-radius: var(--dc-radius-sm);
}

.offcanvas.sidebar-offcanvas .nav-link.active,
.offcanvas.sidebar-offcanvas .nav-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.pagination {
  gap: 0.25rem;
}

.pagination .page-link {
  border-radius: var(--dc-radius-sm);
  border: 1px solid var(--dc-border);
  color: var(--dc-ink);
  background: var(--dc-panel);
  padding: 0.4rem 0.75rem;
}

.pagination .page-link:hover {
  background: var(--dc-panel-2);
  color: var(--dc-ink);
}

.pagination .page-item.active .page-link {
  background: var(--dc-accent);
  border-color: var(--dc-accent);
  color: #fff;
}

.pagination .page-item.disabled .page-link {
  background: var(--dc-panel);
  color: var(--dc-muted);
}

.audit-log-card {
  background: var(--dc-panel);
  border: 1px solid var(--dc-border);
  border-radius: var(--dc-radius);
  padding: 1rem 1.25rem;
  box-shadow: var(--dc-shadow);
  min-width: 0;
}

.review-tabs {
  border-bottom: 1px solid var(--dc-border);
}

.review-tabs .nav-link {
  color: var(--dc-muted);
  border: 1px solid transparent;
  border-radius: var(--dc-radius-sm) var(--dc-radius-sm) 0 0;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
}

.review-tabs .nav-link:hover {
  color: var(--dc-ink);
  background: var(--dc-panel-2);
  border-color: transparent;
}

.review-tabs .nav-link.active {
  color: var(--dc-ink);
  font-weight: 600;
  background: var(--dc-panel-2);
  border-color: var(--dc-border) var(--dc-border) transparent;
}

@media (max-width: 991px) {
  .sidebar {
    display: none;
  }

  .content-area {
    padding: 1rem;
  }

  .topbar {
    padding: 0.75rem 1rem;
  }

  .topbar-user {
    display: none;
  }
}

@media (max-width: 575px) {
  .panel,
  .stat-card,
  .audit-log-card {
    padding: 1rem;
  }

  .content-area {
    padding: 0.75rem;
  }

  .app-management-table .dataTables_wrapper .dataTables_filter input {
    width: 100%;
    margin-top: 0.5rem;
  }
}