.app {
  min-height: 100vh;
}

.navbar {
  background-color: #2c3e50;
  color: white;
  padding: 1rem 0;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: flex-start;
}

@media (min-width: 768px) {
  .nav-container {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
    gap: 0;
  }
}

.nav-title {
  font-size: 1.25rem;
  font-weight: bold;
}

.nav-left {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nav-account {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-account-label {
  font-size: 0.9rem;
  opacity: 0.9;
  font-weight: 700;
}

.nav-account-select {
  width: auto;
  min-width: 180px;
  padding: 0.45rem 0.7rem;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.08);
  color: #fff;
  outline: none;
}

.nav-account-select option {
  color: #111;
}

@media (min-width: 768px) {
  .nav-title {
    font-size: 1.5rem;
  }
  .nav-left {
    flex-direction: row;
    align-items: center;
    gap: 1rem;
  }
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  width: 100%;
}

@media (min-width: 768px) {
  .nav-links {
    width: auto;
    gap: 2rem;
  }
}

.nav-links a {
  color: white;
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  transition: background-color 0.3s;
  font-size: 0.9rem;
  display: block;
  touch-action: manipulation;
}

@media (min-width: 768px) {
  .nav-links a {
    padding: 0.5rem 1rem;
    font-size: 1rem;
  }
}

.nav-links a:hover {
  background-color: #34495e;
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-user-name {
  font-size: 0.9rem;
  opacity: 0.9;
}

.nav-logout {
  padding: 0.45rem 0.75rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.08);
  color: white;
  cursor: pointer;
}

.nav-logout:hover {
  background: rgba(255, 255, 255, 0.14);
}

.main-content {
  max-width: 1200px;
  margin: 1rem auto;
  padding: 0 0.5rem;
}

@media (min-width: 768px) {
  .main-content {
    margin: 2rem auto;
    padding: 0 2rem;
  }
}