:root {
  --bg: #f7f7f4;
  --surface: #ffffff;
  --surface-soft: #f2f3ef;
  --surface-raised: #fbfbf9;
  --ink: #171918;
  --text: #171918;
  --muted: #707872;
  --subtle: #9ba39d;
  --line: #e4e5df;
  --line-strong: #d3d6ce;
  --primary: #285c4d;
  --primary-dark: #173d34;
  --blue: #2764c5;
  --orange: #a96716;
  --danger: #b42318;
  --warning-bg: #fff8e8;
  --success-bg: #eef7f1;
  --shadow: 0 1px 2px rgba(23, 25, 24, 0.05), 0 18px 40px rgba(23, 25, 24, 0.04);
  --shadow-soft: 0 10px 28px rgba(23, 25, 24, 0.06);
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 10px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(23, 184, 137, 0.16), transparent 32%),
    linear-gradient(135deg, #f6fbf8 0%, #eef5fb 100%);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", sans-serif;
}

.shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  padding: 28px;
  border-right: 1px solid rgba(220, 231, 240, 0.9);
  background: rgba(255, 255, 255, 0.76);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 15px;
  color: white;
  background: linear-gradient(135deg, #17b889, #2b7cff);
  font-weight: 800;
}

.brand-title {
  font-size: 18px;
  font-weight: 800;
}

.brand-sub,
.eyebrow,
.side-note,
p,
small,
span {
  color: var(--muted);
}

.nav {
  display: grid;
  gap: 8px;
  margin-top: 34px;
}

.nav-item {
  padding: 13px 14px;
  border-radius: 14px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
}

.nav-item.active,
.nav-item:hover {
  background: #e9faf4;
  color: var(--primary-dark);
}

.side-note {
  margin-top: 34px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #ffffff;
  line-height: 1.7;
}

.side-note-title {
  margin-bottom: 8px;
  color: var(--ink);
  font-weight: 800;
}

.main {
  min-width: 0;
  padding: 34px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  margin-top: 6px;
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: -0.04em;
}

h2 {
  font-size: 20px;
}

.admin-form {
  display: grid;
  grid-template-columns: repeat(4, minmax(150px, 1fr));
  gap: 10px;
  width: min(960px, 100%);
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.9);
}

.admin-form button {
  white-space: nowrap;
}

.captcha-row {
  display: grid;
  grid-template-columns: minmax(110px, 1fr) auto;
  gap: 8px;
}

.captcha-hint {
  grid-column: 1 / -1;
  padding: 0 4px;
  color: var(--muted);
  font-size: 12px;
}

input,
button {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  font: inherit;
}

input {
  padding: 0 13px;
  background: #f8fbfd;
}

button {
  padding: 0 16px;
  color: white;
  background: var(--primary);
  border-color: var(--primary);
  font-weight: 800;
  cursor: pointer;
}

.ghost-button {
  color: var(--primary-dark);
  background: #e9faf4;
  border-color: #c9eee2;
}

.status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  padding: 13px 16px;
  border-radius: 14px;
  background: #fff;
  color: var(--muted);
  border: 1px solid var(--line);
}

.status-action {
  display: none;
  min-height: 34px;
  padding: 0 12px;
  color: #b42318;
  background: #ffffff;
  border-color: #ffd1cc;
}

.status.ok {
  color: var(--primary-dark);
  background: #e9faf4;
  border-color: #c9eee2;
}

.status.error {
  color: #b42318;
  background: #fff1f0;
  border-color: #ffd1cc;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(150px, 1fr));
  gap: 14px;
}

.metric-card,
.panel {
  border: 1px solid rgba(220, 231, 240, 0.92);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
}

.metric-card {
  min-height: 142px;
  padding: 18px;
}

.metric-card.primary {
  color: white;
  background: linear-gradient(135deg, #17b889, #2b7cff);
}

.metric-card.primary span,
.metric-card.primary small {
  color: rgba(255, 255, 255, 0.82);
}

.metric-card.warning strong {
  color: var(--orange);
}

.metric-card span,
.metric-card small {
  display: block;
}

.metric-card strong {
  display: block;
  margin: 12px 0 8px;
  font-size: 38px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.7fr);
  gap: 16px;
  margin-top: 18px;
}

.panel {
  padding: 22px;
}

.panel.wide {
  grid-column: span 1;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.panel-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.mini-heading {
  margin: 4px 0 12px;
  color: var(--ink);
  font-size: 14px;
}

.mini-heading.spaced {
  margin-top: 20px;
}

.bar-list,
.stack-list,
.status-bars,
.insight-grid,
.operation-grid,
.export-grid {
  display: grid;
  gap: 12px;
}

.insight-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.insight-card {
  display: grid;
  gap: 8px;
  padding: 16px;
  border: 1px solid #eef3f7;
  border-radius: 18px;
  background: #fbfdff;
}

.insight-card strong {
  color: var(--ink);
}

.insight-card.ok {
  border-color: #c9eee2;
  background: #f2fcf8;
}

.insight-card.warning {
  border-color: #ffe0a8;
  background: #fff8eb;
}

.insight-card.info {
  border-color: #cfe1ff;
  background: #f3f7ff;
}

.export-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.operation-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 14px;
}

.warning-action {
  color: #9a4b00;
  border-color: #ffd796;
  background: #fff8eb;
}

.trend-chart {
  display: grid;
  grid-template-columns: repeat(14, minmax(34px, 1fr));
  gap: 12px;
  min-height: 220px;
  padding-top: 8px;
}

.trend-day {
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 8px;
  min-height: 190px;
}

.trend-bars {
  display: flex;
  align-items: end;
  justify-content: center;
  gap: 5px;
  min-height: 150px;
  padding: 8px 4px;
  border-radius: 14px;
  background: #f8fbfd;
}

.trend-bar {
  display: block;
  width: 11px;
  min-height: 4px;
  border-radius: 999px 999px 4px 4px;
}

.trend-bar.lesson {
  background: #2b7cff;
}

.trend-bar.record {
  background: #17b889;
}

.trend-day small {
  text-align: center;
  font-size: 12px;
}

.status-bar-row {
  display: grid;
  gap: 8px;
}

.status-bar-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.status-track {
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: #eaf1f6;
}

.status-fill {
  height: 100%;
  border-radius: inherit;
}

.status-fill.scheduled {
  background: #2b7cff;
}

.status-fill.completed {
  background: #17b889;
}

.status-fill.cancelled {
  background: #e58a18;
}

.bar-row {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(120px, 220px) auto 42px;
  gap: 14px;
  align-items: center;
  padding: 13px 0;
  border-bottom: 1px solid #eef3f7;
}

.mini-button {
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  color: var(--primary-dark);
  background: #e9faf4;
  border-color: #c9eee2;
  font-size: 13px;
}

.mini-button.danger {
  color: #991b1b;
  background: #fff1f2;
  border-color: #fecdd3;
}

.account-actions {
  display: grid;
  grid-template-columns: minmax(150px, 1fr) minmax(96px, 0.8fr) auto;
  gap: 8px;
}

.account-actions select {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #f8fbfd;
  padding: 0 10px;
  font: inherit;
}

.detail-toolbar {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto auto;
  gap: 10px;
  margin-bottom: 16px;
}

.audit-toolbar {
  display: grid;
  grid-template-columns: repeat(2, minmax(160px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.audit-toolbar button {
  min-height: 44px;
}

.compact-toolbar {
  grid-template-columns: repeat(2, minmax(140px, 1fr));
}

.section-hint {
  margin: -4px 0 12px;
  color: var(--muted);
  font-size: 13px;
}

.detail-stack {
  display: grid;
  gap: 14px;
}

.detail-hero {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 18px;
  border: 1px solid #cfe1ff;
  border-radius: 20px;
  background: linear-gradient(135deg, #f3f7ff, #f2fcf8);
}

.detail-hero span,
.detail-hero strong,
.detail-hero small,
.detail-metric span,
.detail-metric strong,
.detail-metric small {
  display: block;
}

.detail-hero strong {
  margin: 6px 0;
  color: var(--ink);
  font-size: 22px;
}

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

.detail-metric {
  padding: 15px;
  border: 1px solid #eef3f7;
  border-radius: 16px;
  background: #fbfdff;
}

.detail-metric strong {
  margin: 6px 0;
  color: var(--ink);
  font-size: 24px;
}

.detail-section {
  display: grid;
  gap: 10px;
}

.detail-section h3 {
  margin: 0;
  font-size: 16px;
}

.subscription-editor {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) minmax(160px, 1fr) auto;
  gap: 10px;
}

.subscription-editor button {
  min-height: 44px;
}

.detail-row {
  display: grid;
  grid-template-columns: minmax(160px, 0.35fr) minmax(0, 0.65fr);
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid #eef3f7;
}

.detail-row strong {
  color: var(--ink);
}

.bar-meta strong,
.bar-meta span,
.list-card strong,
.list-card span {
  display: block;
}

.bar-track {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: #eaf1f6;
}

.bar-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #17b889, #2b7cff);
}

.list-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px;
  border: 1px solid #eef3f7;
  border-radius: 16px;
  background: #fbfdff;
}

.list-card em {
  color: var(--primary-dark);
  font-style: normal;
  font-weight: 800;
  text-align: right;
}

.list-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  min-width: 190px;
}

.list-actions em {
  flex-basis: 100%;
}

.alert-card.critical {
  border-color: #ffd1cc;
  background: #fff7f5;
}

.alert-card.critical em {
  color: #b42318;
}

.alert-card.warning {
  border-color: #ffe1ae;
  background: #fffaf0;
}

.alert-card.warning em {
  color: var(--orange);
}

.table {
  overflow: auto;
}

.table-row {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr 1fr 90px;
  gap: 12px;
  min-width: 780px;
  padding: 13px 0;
  border-bottom: 1px solid #eef3f7;
}

.table-head span {
  color: var(--ink);
  font-weight: 800;
}

.status-pill {
  display: inline-flex;
  padding: 5px 10px;
  border-radius: 999px;
  color: var(--primary-dark);
  background: #e9faf4;
  font-style: normal;
  font-weight: 800;
}

.status-pill.warning {
  color: #9a5b00;
  background: #fff3d8;
}

.status-pill.success {
  color: var(--primary-dark);
  background: #e9faf4;
}

.manual-config-card {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin: 14px 0 16px;
  padding: 16px;
  border: 1px solid rgba(236, 180, 80, 0.24);
  border-radius: 18px;
  background: linear-gradient(135deg, #fffaf0 0%, #ffffff 100%);
}

.manual-config-card:empty {
  display: none;
}

.manual-config-card span,
.manual-config-card small,
.manual-config-card p {
  display: block;
}

.manual-config-card span {
  color: #9a5b00;
  font-size: 12px;
  font-weight: 800;
}

.manual-config-card strong {
  display: block;
  margin-top: 5px;
  color: var(--text);
  font-size: 18px;
}

.manual-config-card small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.manual-config-card p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.plan-config-group {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #ffffff;
}

.plan-config-group + .plan-config-group {
  margin-top: 14px;
}

.plan-config-head,
.plan-config-title {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.plan-config-head strong,
.plan-config-title strong {
  display: block;
  color: var(--text);
  font-size: 16px;
}

.plan-config-head small,
.plan-config-card span,
.plan-config-card small {
  display: block;
  color: var(--muted);
  font-weight: 700;
}

.plan-config-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.plan-config-card {
  min-width: 0;
  padding: 14px;
  border: 1px solid rgba(218, 227, 236, 0.9);
  border-radius: 16px;
  background: linear-gradient(135deg, #fbfdff 0%, #ffffff 100%);
}

.plan-config-price {
  margin-top: 12px;
  color: var(--primary);
  font-size: 24px;
  font-weight: 900;
}

.plan-config-price small {
  display: inline;
  margin-left: 8px;
}

.plan-config-quota {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.plan-config-quota small {
  padding: 5px 8px;
  border-radius: 999px;
  color: #475467;
  background: #f2f6fa;
}

.plan-config-features {
  margin-top: 10px;
}

.plan-config-features small {
  margin-top: 4px;
}

#subscriptionOrderList .table-row {
  grid-template-columns: minmax(160px, 1fr) minmax(190px, 1.1fr) minmax(150px, 0.8fr) minmax(160px, 0.9fr) minmax(220px, 1.1fr);
  min-width: 1040px;
}

.empty {
  padding: 28px;
  border-radius: 18px;
  color: var(--muted);
  background: #f8fbfd;
  text-align: center;
}

@media (max-width: 1180px) {
  .shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .metrics-grid,
  .content-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .topbar {
    display: grid;
  }
}

@media (max-width: 760px) {
  .main,
  .sidebar {
    padding: 20px;
  }

  .metrics-grid,
  .content-grid,
  .admin-form,
  .detail-toolbar,
  .audit-toolbar,
  .detail-hero,
  .detail-grid,
  .subscription-editor,
  .insight-grid,
  .operation-grid,
  .export-grid {
    grid-template-columns: 1fr;
  }

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

  .trend-chart {
    overflow-x: auto;
    grid-template-columns: repeat(14, 44px);
  }
}

/* Professional admin redesign layer */
html {
  scroll-behavior: smooth;
}

body {
  background:
    radial-gradient(circle at 18% 0%, rgba(40, 92, 77, 0.08), transparent 28%),
    linear-gradient(180deg, #fafaf8 0%, var(--bg) 100%);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  letter-spacing: -0.01em;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 20;
  transform: translateY(-160%);
  padding: 10px 14px;
  border-radius: 999px;
  color: #ffffff;
  background: var(--ink);
  text-decoration: none;
  font-weight: 800;
  transition: transform 0.18s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  grid-template-columns: 264px minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
  padding: 24px 20px;
  border-right: 1px solid var(--line);
  background: rgba(250, 250, 248, 0.92);
  backdrop-filter: blur(24px);
}

.brand {
  padding: 4px 4px 22px;
  border-bottom: 1px solid var(--line);
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: #171918;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.brand-title {
  font-size: 17px;
  letter-spacing: -0.03em;
}

.brand-sub {
  margin-top: 3px;
  color: var(--subtle);
  font-size: 12px;
  font-weight: 700;
}

.nav {
  gap: 20px;
  margin-top: 22px;
}

.nav-group {
  display: grid;
  gap: 4px;
}

.nav-group-title {
  padding: 0 12px 6px;
  color: var(--subtle);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-item {
  display: flex;
  align-items: center;
  min-height: 36px;
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: 11px;
  color: #4f5751;
  font-size: 14px;
  font-weight: 700;
  transition:
    background 0.16s ease,
    border-color 0.16s ease,
    color 0.16s ease,
    transform 0.16s ease;
}

.nav-item:hover {
  color: var(--ink);
  background: #eeefeb;
  transform: translateX(2px);
}

.nav-item.active {
  color: var(--primary-dark);
  background: #e9eee9;
  border-color: rgba(40, 92, 77, 0.12);
  box-shadow: inset 3px 0 0 var(--primary);
}

.side-note {
  margin-top: 24px;
  padding: 14px;
  border-radius: var(--radius-md);
  background: #f0f1ed;
  box-shadow: none;
  font-size: 13px;
}

.side-note-title {
  font-size: 13px;
}

.main {
  width: min(100%, 1500px);
  margin: 0 auto;
  padding: 32px;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 520px);
  align-items: start;
  gap: 28px;
  margin-bottom: 20px;
}

.page-title-block {
  padding-top: 4px;
}

.eyebrow {
  color: var(--primary);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin-top: 10px;
  color: var(--ink);
  font-size: clamp(31px, 4vw, 48px);
  line-height: 1.03;
  letter-spacing: -0.06em;
}

h2 {
  color: var(--ink);
  font-size: 18px;
  letter-spacing: -0.03em;
}

p,
small,
span {
  line-height: 1.55;
}

.topbar p {
  max-width: 700px;
  margin-top: 12px;
  color: var(--muted);
  font-size: 15px;
}

.connection-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.76);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.connection-panel summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 58px;
  padding: 0 16px 0 18px;
  cursor: pointer;
  user-select: none;
}

.connection-panel summary::-webkit-details-marker {
  display: none;
}

.connection-panel summary::after {
  content: "展开";
  padding: 5px 9px;
  border-radius: 999px;
  color: var(--muted);
  background: var(--surface-soft);
  font-size: 12px;
  font-weight: 800;
}

.connection-panel[open] summary::after {
  content: "收起";
}

.connection-panel summary span {
  color: var(--ink);
  font-weight: 900;
}

.connection-panel summary small {
  color: var(--subtle);
  font-size: 12px;
  font-weight: 700;
}

.admin-form {
  width: 100%;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 0 16px 16px;
  border: 0;
  border-top: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
}

input,
button,
select,
textarea {
  border-color: var(--line);
  border-radius: 11px;
  transition:
    border-color 0.16s ease,
    box-shadow 0.16s ease,
    background 0.16s ease,
    transform 0.16s ease;
}

input,
select,
textarea {
  min-height: 42px;
  color: var(--ink);
  background: #ffffff;
}

input::placeholder,
textarea::placeholder {
  color: #a2aaa4;
}

input:hover,
select:hover,
textarea:hover {
  border-color: var(--line-strong);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: rgba(40, 92, 77, 0.42);
  box-shadow: 0 0 0 4px rgba(40, 92, 77, 0.1);
}

button,
.mini-button {
  border-color: #171918;
  color: #ffffff;
  background: #171918;
  box-shadow: none;
}

button:hover,
.mini-button:hover {
  transform: translateY(-1px);
  background: #2a2d2b;
}

button:active,
.mini-button:active {
  transform: translateY(0);
}

button:disabled,
.mini-button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
  transform: none;
}

.ghost-button,
.status-action,
.mini-button {
  color: var(--ink);
  background: #ffffff;
  border-color: var(--line);
}

.ghost-button:hover,
.status-action:hover,
.mini-button:hover {
  color: var(--ink);
  background: var(--surface-soft);
  border-color: var(--line-strong);
}

.mini-button {
  min-height: 30px;
  padding: 0 10px;
  border-radius: 9px;
  font-size: 12px;
  font-weight: 800;
}

.mini-button.danger {
  color: var(--danger);
  background: #fff7f5;
  border-color: #f2c4bd;
}

.captcha-row {
  grid-template-columns: minmax(0, 1fr) auto;
}

.captcha-hint {
  color: var(--subtle);
}

.status {
  min-height: 48px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.76);
  box-shadow: none;
}

.status.ok {
  color: var(--primary-dark);
  background: var(--success-bg);
  border-color: #cdded2;
}

.status.error {
  color: var(--danger);
  background: #fff7f5;
  border-color: #f2c4bd;
}

.metrics-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.metric-card {
  min-height: 132px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.84);
  box-shadow: none;
}

.metric-card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow);
}

.metric-card span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.metric-card strong {
  color: var(--ink);
  font-size: 34px;
  line-height: 1.05;
  letter-spacing: -0.06em;
}

.metric-card small {
  color: var(--subtle);
  font-weight: 700;
}

.metric-card.primary {
  color: #ffffff;
  background:
    radial-gradient(circle at 88% 12%, rgba(255, 255, 255, 0.18), transparent 26%),
    #171918;
  border-color: #171918;
}

.metric-card.primary span,
.metric-card.primary strong,
.metric-card.primary small {
  color: #ffffff;
}

.metric-card.warning {
  background: var(--warning-bg);
  border-color: #efdfb9;
}

.content-grid {
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 18px;
}

.panel {
  grid-column: span 6;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: none;
}

.panel.wide {
  grid-column: span 12;
}

.panel:hover {
  border-color: var(--line-strong);
}

.panel-head {
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.panel-head p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.panel-actions {
  gap: 8px;
}

.audit-toolbar,
.detail-toolbar,
.subscription-editor,
.export-grid {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-raised);
}

.section-hint {
  margin: 12px 0;
  color: var(--subtle);
  font-size: 13px;
  font-weight: 700;
}

.insight-card,
.alert-card,
.list-card,
.detail-card,
.plan-config-group,
.plan-config-card,
.manual-config-card {
  border-color: var(--line);
  border-radius: var(--radius-md);
  background: #ffffff;
  box-shadow: none;
}

.insight-card:hover,
.alert-card:hover,
.list-card:hover,
.detail-card:hover,
.plan-config-card:hover {
  border-color: var(--line-strong);
}

.plan-config-card {
  background: #ffffff;
}

.plan-config-price {
  color: var(--primary);
  letter-spacing: -0.05em;
}

.plan-config-quota small {
  border-radius: 8px;
  color: var(--muted);
  background: var(--surface-soft);
}

.table {
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #ffffff;
}

.table-row {
  min-width: 820px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}

.table-row:last-child {
  border-bottom: 0;
}

.table-row:not(.table-head):hover {
  background: #fafaf7;
}

.table-head {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #f6f6f2;
}

.table-head span {
  color: #5d665f;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.06em;
}

.table-row span {
  min-width: 0;
}

.table-row small {
  display: block;
  margin-top: 4px;
  color: var(--subtle);
  font-size: 12px;
}

.status-pill {
  align-items: center;
  min-height: 24px;
  padding: 3px 8px;
  border: 1px solid #cdded2;
  border-radius: 8px;
  color: var(--primary-dark);
  background: var(--success-bg);
  font-size: 12px;
  font-weight: 900;
}

.status-pill.warning {
  border-color: #efd9a9;
  color: #8a520c;
  background: var(--warning-bg);
}

.status-pill.success {
  border-color: #cdded2;
  color: var(--primary-dark);
  background: var(--success-bg);
}

.empty {
  display: grid;
  place-items: center;
  min-height: 150px;
  padding: 32px 24px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-md);
  color: var(--muted);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(250, 250, 247, 0.94)),
    #ffffff;
  text-align: center;
}

.empty strong {
  display: block;
  color: var(--ink);
  font-size: 15px;
  letter-spacing: -0.02em;
}

.empty small {
  display: block;
  margin-top: 6px;
  color: var(--subtle);
  font-size: 12px;
}

.trend-chart {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #ffffff;
}

.bar-list,
.stack-list,
.detail-stack {
  gap: 10px;
}

.view-hidden {
  display: none !important;
}

.active-view-panel {
  grid-column: 1 / -1;
  animation: view-enter 180ms ease both;
}

#dashboard:not(.view-hidden) {
  animation: view-enter 180ms ease both;
}

@keyframes view-enter {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 1440px) {
  .metrics-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (max-width: 1180px) {
  .shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  .nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .metrics-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .panel {
    grid-column: span 12;
  }
}

@media (max-width: 760px) {
  .main,
  .sidebar {
    padding: 18px;
  }

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

  h1 {
    font-size: 32px;
  }

  .metrics-grid,
  .admin-form,
  .plan-config-grid {
    grid-template-columns: 1fr;
  }

  .metric-card {
    min-height: 118px;
  }

  .panel {
    padding: 16px;
  }

  .panel-head {
    display: grid;
  }
}