.app {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 260px 1fr;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: var(--space-6);
  border-right: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
  background: color-mix(in oklab, var(--color-surface) 86%, var(--color-bg));
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: var(--space-8);
}

.mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--color-primary), color-mix(in oklab, var(--color-primary) 50%, white));
  color: white;
  box-shadow: var(--shadow-md);
}

.logo h1 {
  font: 700 var(--text-lg)/1 var(--font-display);
  letter-spacing: -.03em;
}

.logo p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: 4px;
}

.nav {
  margin-bottom: var(--space-6);
}

.nav h2 {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--color-text-faint);
  margin-bottom: 10px;
}

.nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  color: var(--color-text-muted);
}

.nav a:hover,
.nav a.active {
  background: var(--color-surface-2);
  color: var(--color-text);
}

.sidebar-card {
  margin-top: var(--space-8);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
}

.sidebar-card small {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--color-text-faint);
}

.sidebar-card p {
  margin-top: 10px;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.main {
  min-width: 0;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-4) var(--space-6);
  background: color-mix(in oklab, var(--color-bg) 84%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid color-mix(in oklab, var(--color-text) 8%, transparent);
}

.search {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 460px;
  flex: 1;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
  background: var(--color-surface);
  color: var(--color-text-muted);
}

.top-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.content {
  max-width: 1320px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-6) var(--space-16);
}

.footer {
  margin-top: var(--space-10);
  padding-top: var(--space-6);
  border-top: 1px solid color-mix(in oklab, var(--color-text) 8%, transparent);
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

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

  .sidebar {
    display: none;
  }

  .content,
  .topbar {
    padding-inline: var(--space-4);
  }
}