:root {
  --bg: #f7f8fb;
  --panel: #ffffff;
  --ink: #111827;
  --muted: #667085;
  --line: #d7dce3;
  --nav: #101828;
  --accent: #0f766e;
  --accent-soft: #ccfbf1;
  --warn: #b45309;
  --danger: #b42318;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.saas-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 250px 1fr;
}

.sidebar {
  padding: 18px 12px;
  background: var(--nav);
  color: #ffffff;
}

.brand {
  min-height: 52px;
  display: flex;
  align-items: center;
  padding: 0 10px;
  font-weight: 800;
}

.nav-button {
  width: 100%;
  min-height: 40px;
  margin-top: 6px;
  padding: 0 12px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #d0d5dd;
  text-align: left;
}

.nav-button.active,
.nav-button:hover {
  background: #1d2939;
  color: #ffffff;
}

.workspace {
  padding: 24px;
}

.topbar,
.metric-grid,
.content-grid,
.pricing-grid {
  display: grid;
  gap: 16px;
}

.topbar {
  grid-template-columns: 1fr auto;
  align-items: center;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

.metric-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 20px 0;
}

.card,
.metric-card,
.pricing-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.metric-card {
  padding: 16px;
}

.metric-card strong {
  display: block;
  font-size: 28px;
}

.metric-card span,
.muted,
td {
  color: var(--muted);
}

.content-grid {
  grid-template-columns: 1.3fr 0.7fr;
}

.card {
  padding: 18px;
}

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

th,
td {
  padding: 12px 8px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.badge {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  border-radius: 999px;
  padding: 0 8px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
}

.badge.warn {
  background: #fef3c7;
  color: var(--warn);
}

.badge.danger {
  background: #fee4e2;
  color: var(--danger);
}

.primary-action {
  min-height: 40px;
  border: 0;
  border-radius: 8px;
  padding: 0 14px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 800;
}

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

.pricing-card {
  padding: 18px;
}

@media (max-width: 860px) {
  .saas-shell,
  .topbar,
  .metric-grid,
  .content-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }
}