/* ========================================
   auth.css — 登录/注册页样式
   ======================================== */

.auth-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  min-height: 100dvh;
  padding: var(--spacing-lg);
}

.auth-hero {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.auth-logo {
  font-size: 64px;
  margin-bottom: var(--spacing-sm);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.auth-title {
  font-size: var(--font-size-xxl);
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

.auth-form-wrapper {
  width: 100%;
  max-width: 360px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-lg);
}

.auth-tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: var(--spacing-sm);
}

.auth-tab {
  flex: 1;
  padding: var(--spacing-sm);
  text-align: center;
  color: var(--text-muted);
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.auth-tab.active {
  color: var(--color-primary);
  background: rgba(79, 195, 247, 0.1);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-group label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-weight: 500;
}

.form-group input {
  padding: 10px var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-md);
}

.auth-error {
  font-size: var(--font-size-sm);
  color: var(--hp-low);
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  background: rgba(244, 67, 54, 0.1);
  text-align: center;
}

.auth-footer {
  margin-top: var(--spacing-xl);
  text-align: center;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

/* Loading screen */
.loading-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  gap: var(--spacing-md);
}

.loading-icon {
  font-size: 48px;
  animation: float 2s ease-in-out infinite;
}

.loading-text {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  font-family: var(--font-pixel);
  letter-spacing: 2px;
}