:root {
  --black: #111111;
  --white: #ffffff;
  --paper: #fbfaf7;
  --muted: #666666;
  --line: #dedbd4;
  --gold: #9b7a3a;
  --gold-soft: #f7f5f1;
  --danger: #b42318;
  --success: #146c43;
  --shadow: 0 20px 60px rgba(0,0,0,.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px 1fr;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--black);
  background: #f4f2ed;
}

button, input, select {
  font: inherit;
}

.admin-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  background: #111;
  color: #fff;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.admin-brand strong {
  display: block;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 30px;
  font-weight: 500;
  letter-spacing: -.05em;
}

.admin-brand span {
  display: block;
  color: #c8aa74;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-top: 4px;
}

.admin-nav {
  display: grid;
  gap: 8px;
}

.nav-item {
  width: 100%;
  height: 46px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 8px;
  background: rgba(255,255,255,.04);
  color: #fff;
  text-align: left;
  padding: 0 14px;
  font-weight: 800;
  cursor: pointer;
}

.nav-item:hover,
.nav-item.active {
  background: #fff;
  color: #111;
}

.sidebar-note {
  margin-top: auto;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 8px;
  padding: 16px;
  background: rgba(255,255,255,.04);
}

.sidebar-note span {
  color: #c8aa74;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-weight: 900;
}

.sidebar-note strong {
  display: block;
  margin-top: 4px;
}

.sidebar-note p {
  color: rgba(255,255,255,.72);
  font-size: 13px;
  line-height: 1.45;
}

.admin-app {
  padding: 32px;
}

.admin-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .14em;
}

h1, h2, h3 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
  letter-spacing: -.045em;
}

h1 {
  margin: 0;
  font-size: clamp(38px, 5vw, 68px);
}

h2 {
  margin: 0;
  font-size: 30px;
}

h3 {
  margin: 0;
  font-size: 24px;
}

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

.primary-btn,
.ghost-btn,
.card-actions button,
.card-actions a {
  min-height: 42px;
  border-radius: 8px;
  padding: 0 16px;
  font-weight: 900;
  cursor: pointer;
}

.primary-btn {
  border: 0;
  background: #111;
  color: #fff;
}

.ghost-btn {
  border: 1px solid #111;
  background: #fff;
  color: #111;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 22px;
}

.kpi-grid article,
.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.kpi-grid article {
  padding: 22px;
}

.kpi-grid span {
  display: block;
  font-size: 44px;
  font-weight: 900;
  letter-spacing: -.06em;
}

.kpi-grid strong {
  display: block;
  margin-top: 5px;
}

.kpi-grid p,
.panel p {
  color: var(--muted);
  line-height: 1.45;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 22px;
}

.panel {
  padding: 24px;
}

.panel-heading {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  margin-bottom: 22px;
}

.action-list {
  display: grid;
  gap: 12px;
}

.action-list article,
.billing-policy,
.billing-result {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  background: var(--paper);
}

.action-list strong {
  display: block;
}

.action-list p,
.billing-policy p {
  margin: 6px 0 0;
}

.split-layout {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 22px;
  align-items: start;
}

.wide-panel {
  min-width: 0;
}

.admin-form {
  display: grid;
  gap: 14px;
}

.admin-form label,
.settings-panel label {
  display: grid;
  gap: 7px;
  font-size: 13px;
  font-weight: 900;
}

.admin-form input,
.admin-form select,
.settings-panel input {
  width: 100%;
  min-height: 46px;
  border: 1px solid #cfcac0;
  border-radius: 8px;
  background: #fff;
  padding: 0 12px;
}

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

.card-grid.compact {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.admin-card {
  border: 2px solid #111;
  border-radius: 8px;
  background: #fff;
  padding: 18px;
  display: grid;
  gap: 14px;
}

.admin-card-head {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
}

.admin-card .badge {
  display: inline-flex;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 900;
  background: var(--gold-soft);
  color: #5f4e33;
}

.admin-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.admin-card dl {
  display: grid;
  gap: 8px;
  margin: 0;
}

.admin-card dl div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid #eee9df;
  padding-top: 8px;
}

.admin-card dt {
  color: var(--muted);
  font-size: 12px;
}

.admin-card dd {
  margin: 0;
  font-weight: 900;
  text-align: right;
}

.card-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.card-actions button {
  border: 1px solid #111;
  background: #fff;
}

.card-actions button.danger {
  border-color: var(--danger);
  color: var(--danger);
}

.table-list {
  display: grid;
  gap: 10px;
}

.table-row {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr 1.2fr auto;
  gap: 12px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: var(--paper);
}

.table-row strong {
  display: block;
}

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

.table-row button {
  border: 1px solid var(--danger);
  color: var(--danger);
  background: #fff;
  border-radius: 8px;
  min-height: 36px;
  font-weight: 900;
  cursor: pointer;
}

.billing-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 24px;
}

.billing-result {
  display: grid;
  align-content: center;
  min-height: 260px;
  text-align: center;
}

.billing-result span {
  color: var(--muted);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .1em;
  font-size: 12px;
}

.billing-result strong {
  display: block;
  font-size: clamp(42px, 8vw, 78px);
  letter-spacing: -.06em;
  margin: 8px 0;
}

.settings-panel {
  max-width: 680px;
  display: grid;
  gap: 16px;
}

.empty-state {
  border: 1px dashed #cfcac0;
  border-radius: 8px;
  padding: 24px;
  color: var(--muted);
  text-align: center;
  background: var(--paper);
}

@media (max-width: 1200px) {
  .kpi-grid,
  .card-grid.compact {
    grid-template-columns: repeat(2, 1fr);
  }

  .split-layout,
  .dashboard-grid,
  .billing-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  body {
    grid-template-columns: 1fr;
  }

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

  .admin-app {
    padding: 20px;
  }

  .admin-topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .topbar-actions,
  .card-actions {
    width: 100%;
    grid-template-columns: 1fr;
    display: grid;
  }

  .kpi-grid,
  .card-grid.compact {
    grid-template-columns: 1fr;
  }

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