:root {
  color-scheme: light;
  --background: #f9f9f7;
  --surface: #f5f4f0;
  --surface-elevated: #ffffff;
  --primary: #d67548;
  --primary-light: #f6e6de;
  --primary-dark: #c9724c;
  --secondary: #435e4b;
  --text-primary: #1a1a1a;
  --text-secondary: #666666;
  --text-tertiary: #9e9e9e;
  --border: #e0e0e0;
  --border-light: #efefef;
  --warning: #e5a84b;
  --error: #d64545;

  --radius-card: 20px;
  --radius-button: 14px;
  --radius-chip: 24px;
  --radius-control: 14px;

  --font-serif: 'New York', 'Iowan Old Style', 'Apple Garamond', 'Baskerville', 'Times New Roman', ui-serif, Georgia, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', system-ui, sans-serif;

  --shadow: 0 18px 40px rgba(214, 117, 72, 0.08);
  --shadow-control: 0 1px 2px rgba(26, 26, 26, 0.04);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--text-primary);
  background:
    radial-gradient(circle at 12% 0%, rgba(246, 230, 222, 0.9) 0%, transparent 42%),
    radial-gradient(circle at 88% 8%, rgba(67, 94, 75, 0.08) 0%, transparent 36%),
    var(--background);
  -webkit-font-smoothing: antialiased;
}

button,
input,
select,
textarea {
  font: inherit;
}

a {
  color: var(--primary);
}

#app {
  min-height: 100vh;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px;
}

.app-shell {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 24px 18px;
  background: var(--surface-elevated);
  border-right: 1px solid var(--border-light);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 8px;
}

.sidebar-brand strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.05rem;
}

.sidebar-brand span {
  color: var(--text-secondary);
  font-size: 0.82rem;
}

.sidebar-nav {
  display: grid;
  gap: 6px;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  border: none;
  background: transparent;
  color: var(--text-primary);
  padding: 12px 14px;
  border-radius: 14px;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s ease, color 0.15s ease;
}

.sidebar-link:hover,
.sidebar-link.active {
  background: var(--primary-light);
  color: var(--primary-dark);
}

.sidebar-link-muted {
  color: var(--text-secondary);
}

.sidebar-icon,
.icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.sidebar-link .sidebar-icon {
  opacity: 0.85;
}

.sidebar-loading {
  margin-top: auto;
  padding: 8px 14px;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.main-content {
  padding: 28px 32px 40px;
  width: 100%;
  min-width: 0;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.page-title {
  font-size: clamp(1.6rem, 2vw, 2rem);
}

.page-subtitle {
  margin-top: 6px;
}

.loading-pill {
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 0.82rem;
  font-weight: 600;
}

.sidebar-footer {
  margin-top: auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

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

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
  box-shadow: 0 8px 20px rgba(214, 117, 72, 0.18);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  display: block;
}

.brand h1 {
  font-size: 1.35rem;
}

.brand p {
  margin: 4px 0 0;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

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

.nav button {
  border: 1px solid var(--border);
  background: var(--surface-elevated);
  color: var(--text-primary);
  padding: 10px 16px;
  border-radius: var(--radius-chip);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease;
}

.nav button:hover {
  border-color: color-mix(in srgb, var(--primary) 30%, var(--border));
  transform: translateY(-1px);
}

.nav button.active {
  background: var(--primary-light);
  border-color: color-mix(in srgb, var(--primary) 35%, var(--border));
  color: var(--primary-dark);
}

.card {
  background: var(--surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  padding: 20px;
  box-shadow: var(--shadow);
}

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

.grid {
  display: grid;
  gap: 16px;
}

.grid.stats {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 16px;
}

.stats-hero .stat-hero {
  min-height: 132px;
}

.stat-hero .stat-value {
  font-size: 2.2rem;
}

.stat-pro { border-top: 3px solid var(--secondary); }
.stat-free { border-top: 3px solid var(--primary); }
.stat-active { border-top: 3px solid var(--warning); }

.metrics-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
  padding: 14px 18px;
}

.metric-inline {
  display: grid;
  gap: 4px;
  font-size: 0.92rem;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 16px;
}

.chart-card-wide {
  grid-row: span 2;
}

.chart-card-full {
  grid-column: 1 / -1;
}

.chart-card-side {
  display: flex;
  flex-direction: column;
}

.side-actions {
  display: grid;
  gap: 8px;
  margin-top: auto;
  padding-top: 12px;
}

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

.stat {
  padding: 16px;
  border-radius: 16px;
  background: var(--surface-elevated);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-control);
}

.stat-clickable {
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.stat-clickable:hover,
.stat-clickable:focus-visible {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--primary) 35%, var(--border));
  box-shadow: 0 10px 24px rgba(214, 117, 72, 0.12);
  outline: none;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.stat-value {
  margin-top: 8px;
  font-family: var(--font-serif);
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-hint {
  margin-top: 8px;
  font-size: 0.78rem;
  color: var(--primary);
}

.section-title {
  margin: 0;
  font-size: 1.05rem;
}

.user-title {
  margin: 16px 0;
}

.muted {
  color: var(--text-secondary);
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 0.78rem;
  font-weight: 600;
}

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: min(420px, 100%);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 8px;
}

.stack {
  display: grid;
  gap: 16px;
}

.control {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.control-grow {
  flex: 1 1 240px;
}

.control-actions {
  align-self: end;
}

.control-label {
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 600;
}

.control-shell,
.select-shell {
  position: relative;
}

.control-input,
.control-select,
.control-textarea {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--surface-elevated);
  color: var(--text-primary);
  border-radius: var(--radius-control);
  box-shadow: var(--shadow-control);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.control-input,
.control-select {
  min-height: 46px;
  padding: 0 14px;
}

.control-input-icon {
  padding-left: 42px;
}

.control-icon-svg {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-tertiary);
  pointer-events: none;
}

.control-textarea {
  padding: 12px 14px;
  resize: vertical;
  min-height: 96px;
}

.select-shell::after {
  content: "";
  position: absolute;
  right: 14px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--text-secondary);
  border-bottom: 2px solid var(--text-secondary);
  transform: translateY(-65%) rotate(45deg);
  pointer-events: none;
}

.control-select {
  appearance: none;
  padding-right: 40px;
  cursor: pointer;
}

.control-input:hover,
.control-select:hover,
.control-textarea:hover {
  border-color: color-mix(in srgb, var(--primary) 25%, var(--border));
}

.control-input:focus,
.control-select:focus,
.control-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent);
}

.control-input::placeholder,
.control-textarea::placeholder {
  color: var(--text-tertiary);
}

.btn {
  border: none;
  border-radius: var(--radius-button);
  padding: 12px 16px;
  min-height: 46px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.15s ease, transform 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
}

.btn:hover:not(:disabled) {
  transform: translateY(-1px);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
}

.card-flush {
  overflow: hidden;
}

.card-head-compact {
  margin-bottom: 0;
  padding-bottom: 0;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-block {
  width: 100%;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 700;
}

.table-wrap-wide {
  margin: 0 -4px;
}

.table-users {
  min-width: 960px;
}

.table-users .col-avatar {
  width: 52px;
  padding-right: 0;
}

.table-users .col-name {
  min-width: 120px;
  white-space: nowrap;
}

.table-users .col-email {
  min-width: 220px;
  width: 28%;
  white-space: normal;
  word-break: break-word;
  line-height: 1.45;
}

.table-users .col-tier {
  width: 84px;
}

.table-users .col-num {
  width: 64px;
  text-align: right;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.table-users .col-date {
  white-space: nowrap;
  font-size: 0.875rem;
}

.break-anywhere {
  overflow-wrap: anywhere;
}

.detail-layout {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(360px, 1.1fr);
  gap: 16px;
  align-items: start;
}

.detail-stack {
  display: grid;
  gap: 16px;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--primary-dark);
}

.btn-primary:disabled,
.btn-secondary:disabled,
.btn-danger:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: var(--surface-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
  border-color: color-mix(in srgb, var(--primary) 25%, var(--border));
  background: var(--surface);
}

.btn-danger {
  background: color-mix(in srgb, var(--error) 10%, var(--surface-elevated));
  color: var(--error);
  border: 1px solid color-mix(in srgb, var(--error) 25%, var(--border));
}

.toolbar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: end;
  margin-bottom: 16px;
  padding: 16px;
  border-radius: 16px;
  background: var(--surface);
  border: 1px solid var(--border-light);
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--border-light);
  vertical-align: top;
}

th {
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
}

.table-interactive tbody tr {
  cursor: pointer;
  transition: background 0.15s ease;
}

.table-interactive tbody tr:hover,
.table-interactive tbody tr:focus-visible {
  background: color-mix(in srgb, var(--primary-light) 45%, transparent);
  outline: none;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.badge.pro {
  background: color-mix(in srgb, var(--secondary) 12%, var(--surface-elevated));
  color: var(--secondary);
}

.badge.free {
  background: var(--primary-light);
  color: var(--primary-dark);
}

.linkish {
  color: var(--primary);
  font-weight: 600;
}

.chart-card svg {
  width: 100%;
  height: auto;
  display: block;
}

.chart-shell {
  position: relative;
}

.chart-tooltip {
  position: absolute;
  z-index: 2;
  transform: translate(-50%, -100%);
  padding: 6px 10px;
  border-radius: 10px;
  background: var(--text-primary);
  color: #fff;
  font-size: 0.78rem;
  white-space: nowrap;
  pointer-events: none;
}

.chart-bar,
.chart-point,
.donut-segment {
  cursor: pointer;
  transition: opacity 0.15s ease;
}

.chart-bar:hover,
.chart-point:hover,
.donut-segment:hover {
  opacity: 0.82;
}

.donut-wrap {
  display: flex;
  align-items: center;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.donut-wrap svg {
  width: min(220px, 100%);
  height: auto;
}

.donut-legend {
  display: grid;
  gap: 10px;
  min-width: 140px;
}

.donut-legend-item {
  display: grid;
  grid-template-columns: 12px 1fr auto;
  gap: 8px;
  align-items: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.donut-swatch {
  width: 12px;
  height: 12px;
  border-radius: 999px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.detail-block h3 {
  margin: 0 0 8px;
  font-size: 0.95rem;
}

.detail-block p {
  margin: 0 0 10px;
}

.detail-block .muted + p {
  margin-top: -6px;
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.actions-inline {
  margin-top: 0;
}

.error {
  margin-top: 12px;
  color: var(--error);
}

.success {
  margin-top: 12px;
  color: var(--secondary);
}

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

.empty {
  padding: 24px;
  text-align: center;
  color: var(--text-secondary);
}

.nested-card {
  margin-top: 16px;
  background: var(--surface);
  box-shadow: none;
}

.loading-bar {
  height: 3px;
  margin-top: 12px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  animation: loading 1.1s ease-in-out infinite;
}

@keyframes loading {
  0% { transform: translateX(-100%); opacity: 0.3; }
  50% { opacity: 1; }
  100% { transform: translateX(100%); opacity: 0.3; }
}

@media (max-width: 1100px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    border-right: none;
    border-bottom: 1px solid var(--border-light);
  }

  .sidebar-nav {
    display: flex;
    flex: 1;
  }

  .sidebar-footer {
    margin-top: 0;
  }

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

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

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

  .chart-card-wide {
    grid-column: auto;
    grid-row: auto;
  }

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

@media (max-width: 900px) {
  .charts-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .shell,
  .main-content {
    padding: 16px;
  }

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

  .toolbar {
    padding: 12px;
  }

  .control-actions {
    width: 100%;
  }

  .control-actions .btn {
    width: 100%;
  }
}