.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

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

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-premium);
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.brand-text span:first-child {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  letter-spacing: -0.01em;
}

.brand-text span:last-child {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 500;
}
.user-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  background: var(--primary-light);
  border-radius: 999px;
  border: 1px solid rgba(37, 99, 235, 0.1);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
}

.user-info {
  display: flex;
  flex-direction: column;
  font-size: 0.8rem;
  line-height: 1.2;
}

.user-info span:first-child {
  font-weight: 600;
  color: var(--text);
}

.user-info span:last-child {
  color: var(--muted);
  font-weight: 500;
}
.layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  padding: 24px 32px 40px;
  gap: 28px;
  flex: 1;
}