.header {
  background: #ffffff;
  border-bottom: 1px solid #e2e8f0;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.08);
  padding: 24px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  max-width: 850px;
  margin: 0 auto;
  padding: 0 48px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

.header h1 {
  color: #1d1d1f;
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
  margin: 0;
}

.subtitle {
  color: #64748b;
  font-size: 13px;
  font-weight: 400;
  margin: 0;
  letter-spacing: 0.5px;
}

@media (max-width: 768px) {
  .header-content {
    padding: 0 20px;
  }

  .logo-section {
    gap: 12px;
  }

  .logo {
    width: 32px;
    height: 32px;
  }

  .header h1 {
    font-size: 20px;
  }

  .subtitle {
    font-size: 12px;
  }
}