body {
  background: var(--bg-cream);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.auth-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: calc(var(--nav-offset) + 2rem) 1.25rem 2.5rem;
}

.auth-box {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 2.5rem;
  width: 100%;
  max-width: 420px;
  border: 1px solid var(--border);
}

.auth-toggle {
  display: flex;
  margin-bottom: 2rem;
  border-radius: var(--radius-full);
  overflow: hidden;
  border: 1.5px solid var(--border);
  background: var(--bg-muted);
  padding: 4px;
  gap: 4px;
}

.tab-btn {
  flex: 1;
  padding: 0.65rem;
  background: transparent;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: all var(--transition);
}

.tab-btn.active {
  background: var(--primary);
  color: white;
  box-shadow: var(--shadow-sm);
}

.auth-form {
  display: none;
}

.auth-form.active {
  display: block;
}

.auth-form h2 {
  font-family: var(--font-display);
  text-align: center;
  margin: 0 0 1.5rem;
  color: var(--text-dark);
  font-size: 1.6rem;
  font-weight: 600;
}

.auth-form input {
  width: 100%;
  padding: 0.85rem 1rem;
  margin-bottom: 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text-dark);
  background: var(--bg-cream);
  box-sizing: border-box;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.auth-form input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(196, 92, 38, 0.12);
}

.auth-form button[type="submit"] {
  width: 100%;
  padding: 0.9rem;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.auth-form button[type="submit"]:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.auth-form button[type="submit"]:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}

.message {
  margin-top: 1rem;
  padding: 0.85rem;
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 0.9rem;
  display: none;
}

.message.success {
  background: #e8f5ec;
  color: #1e6b38;
  border: 1px solid #b8dfc8;
}

.message.error {
  background: #fdecea;
  color: #922b21;
  border: 1px solid #f5c6cb;
}

@media (max-width: 768px) {
  .auth-container {
    padding: calc(var(--nav-offset) + 1.5rem) 1rem 2rem;
    align-items: flex-start;
  }

  .auth-box {
    padding: 1.75rem 1.25rem;
    border-radius: var(--radius-md);
  }

  .auth-form h2 {
    font-size: 1.35rem;
  }

  .auth-form input,
  .auth-form button[type="submit"] {
    font-size: 16px;
    min-height: 48px;
  }
}