// ==========================================
// 统一 SCSS Mixins
// ==========================================

// ---- 卡片 ----
@mixin card-base {
  background: $bg-card-glass;
  border-radius: $radius-xl;
  padding: $spacing-lg;
  border: 1.5rpx solid $border-card;
  box-shadow: $shadow-card;
}

@mixin card-solid {
  background: $bg-card;
  border-radius: $radius-2xl;
  padding: $spacing-xl;
  box-shadow: $shadow-sm;
}

@mixin card-glass {
  background: $bg-card-glass;
  border-radius: $radius-xl;
  padding: $spacing-lg;
  border: 1.5rpx solid $border-card;
  box-shadow: $shadow-card;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

@mixin card-elevated {
  @include card-base;
  box-shadow: $shadow-md;
  border-color: $border-light;
}

@mixin card-subtle {
  background: $gradient-card-subtle;
  border-radius: $radius-md;
  padding: $spacing-lg;
  border: 1rpx solid $border-light;
  box-shadow: inset 0 1rpx 0 rgba(255, 255, 255, 0.9);
}

// ---- 按钮 ----
@mixin btn-base {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: $radius-full;
  font-weight: $font-weight-bold;
  transition: all $transition-fast;
}

@mixin btn-primary {
  @include btn-base;
  height: 96rpx;
  background: $gradient-primary;
  color: $text-inverse;
  font-size: $font-lg;
  box-shadow: $shadow-btn;
}

@mixin btn-secondary {
  @include btn-base;
  height: 96rpx;
  background: $bg-card;
  color: $text-primary;
  font-size: $font-lg;
  border: 2rpx solid $border-light;
  box-shadow: $shadow-sm;
}

@mixin btn-outline {
  @include btn-base;
  height: 96rpx;
  background: transparent;
  color: $color-primary-dark;
  font-size: $font-lg;
  border: 2rpx solid rgba($color-primary, 0.32);
}

@mixin btn-pill {
  @include btn-base;
  padding: $spacing-xs $spacing-lg;
  font-size: $font-sm;
  font-weight: $font-weight-semibold;
}

// ---- 标签/徽章 ----
@mixin chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: $spacing-xs $spacing-md;
  border-radius: $radius-full;
  font-size: $font-sm;
  font-weight: $font-weight-semibold;
}

@mixin chip-primary {
  @include chip;
  background: $color-primary-bg;
  color: $color-primary-dark;
  border: 1rpx solid $color-primary-border;
}

@mixin chip-muted {
  @include chip;
  background: $bg-muted;
  color: $text-muted;
}

@mixin badge {
  @include chip;
  font-size: $font-xs;
  padding: 6rpx 14rpx;
  background: $color-primary-bg;
  color: $color-primary-dark;
}

// ---- 进度条 ----
@mixin progress-bar($height: 10rpx) {
  height: $height;
  background: rgba($color-primary, 0.1);
  border-radius: $radius-full;
  overflow: hidden;
}

@mixin progress-fill {
  height: 100%;
  border-radius: $radius-full;
  background: linear-gradient(90deg, $color-primary, $color-primary-light);
  transition: width $transition-slow;
}

// ---- 圆环 ----
@mixin ring($size: 110rpx) {
  width: $size;
  height: $size;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

@mixin ring-inner {
  border-radius: 50%;
  background: $bg-card;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4rpx 12rpx $color-primary-shadow;
}

// ---- 布局 ----
@mixin flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

@mixin flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@mixin flex-col {
  display: flex;
  flex-direction: column;
}

// ---- 文字 ----
@mixin text-number {
  font-family: $font-family-number;
  font-weight: $font-weight-heavy;
}

@mixin text-heading {
  font-weight: $font-weight-bold;
  color: $text-primary;
}

@mixin text-label {
  font-size: $font-sm;
  color: $text-tertiary;
}

@mixin text-kicker {
  font-size: $font-xs;
  font-weight: $font-weight-semibold;
  color: $text-muted;
}

// ---- 动画骨架 ----
@mixin skeleton-shimmer {
  background: linear-gradient(90deg, #E5E7EB 25%, #F3F4F6 50%, #E5E7EB 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

// ---- 安全区域 ----
@mixin safe-area-bottom {
  padding-bottom: constant(safe-area-inset-bottom);
  padding-bottom: env(safe-area-inset-bottom);
}

// ---- 悬浮按钮 ----
@mixin fab {
  position: fixed;
  z-index: 100;
  border-radius: $radius-full;
  background: $gradient-primary;
  box-shadow: $shadow-fab;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fabFloat 3.6s ease-in-out infinite;
}

// ---- 空状态 ----
@mixin empty-state {
  @include flex-col;
  align-items: center;
  padding: 80rpx $spacing-xl;
  border-radius: $radius-2xl;
  background: $gradient-card;
  box-shadow: $shadow-md;
}

// ---- 菜单项 ----
@mixin menu-item {
  display: flex;
  align-items: center;
  gap: $spacing-lg;
  padding: $spacing-lg 0;
  background: transparent;
}

@mixin menu-icon($bg: $color-primary-soft) {
  width: 72rpx;
  height: 72rpx;
  border-radius: 50%;
  @include flex-center;
  flex-shrink: 0;
  background: $bg;
}