/**
 * 《健身记录 | Fitness Record》全局设计系统与核心样式
 */

:root {
  /* 基础主色板 - 默认浅色 */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.85);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;

  /* 运动与热力主题色 */
  --brand-red: #ef4444;
  --brand-red-dark: #dc2626;
  --brand-red-light: #fee2e2;
  --brand-accent: #f97316;
  --brand-green: #10b981;
  
  /* 肌肉底模轮廓 */
  --muscle-silhouette: #cbd5e1;
  --muscle-empty: rgba(226, 232, 240, 0.8);
  --muscle-stroke: #cbd5e1;

  /* 阴影 */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 0 15px rgba(239, 68, 68, 0.35);

  /* 圆角 */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* 安全距离 */
  --safe-bottom: env(safe-area-inset-bottom, 16px);
  --safe-top: env(safe-area-inset-top, 0px);
}

/* 深色模式变量 */
[data-theme="dark"] {
  --bg-primary: #090d16;
  --bg-secondary: #111827;
  --bg-tertiary: #1f2937;
  --bg-card: #151e2e;
  --bg-glass: rgba(17, 24, 39, 0.88);

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --border-color: #27354a;
  --border-light: #1e293b;

  --brand-red-light: rgba(239, 68, 68, 0.15);

  --muscle-silhouette: #334155;
  --muscle-empty: rgba(51, 65, 85, 0.5);
  --muscle-stroke: #475569;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 20px -3px rgba(0, 0, 0, 0.6);
}

/* 媒体查询系统暗色匹配 */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-primary: #090d16;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    --bg-card: #151e2e;
    --bg-glass: rgba(17, 24, 39, 0.88);

    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --border-color: #27354a;
    --border-light: #1e293b;

    --brand-red-light: rgba(239, 68, 68, 0.15);

    --muscle-silhouette: #334155;
    --muscle-empty: rgba(51, 65, 85, 0.5);
    --muscle-stroke: #475569;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 20px -3px rgba(0, 0, 0, 0.6);
  }
}

/* 全局重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  padding-top: var(--safe-top);
  padding-bottom: calc(var(--safe-bottom) + 24px);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 顶部导航条 */
.app-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 18px;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  font-size: 1.5rem;
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.brand-title .en-sub {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-left: 6px;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all 0.2s ease;
}

.icon-btn:hover {
  background: var(--border-color);
  color: var(--text-primary);
}

/* 主内容布局：桌面端双栏响应式，移动端流式单栏 */
.main-layout {
  max-width: 1360px;
  margin: 0 auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

@media (min-width: 900px) {
  .main-layout {
    display: grid;
    grid-template-columns: 530px 1fr;
    grid-template-rows: auto 1fr;
    align-items: start;
    gap: 24px;
    padding: 24px 20px;
  }

  .calendar-section-col {
    grid-column: 1 / -1;
  }

  .muscle-viewer-col {
    grid-column: 1 / 2;
    position: sticky;
    top: 76px;
  }

  .workout-feed-col {
    grid-column: 2 / 3;
  }
}

@media (min-width: 1200px) {
  .main-layout {
    grid-template-columns: 580px 1fr;
  }
}

/* 人体图卡片容器 */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s ease;
}

.card-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 10px;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 时间视角切换胶囊 */
.time-scope-tabs {
  display: inline-flex;
  background: var(--bg-tertiary);
  padding: 3px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
}

.scope-tab {
  background: transparent;
  border: none;
  padding: 4px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.2s ease;
}

.scope-tab.active {
  background: var(--bg-card);
  color: var(--brand-red);
  box-shadow: var(--shadow-sm);
}

/* 人体图显示视角模式切换栏 */
.body-view-controls-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
  background: var(--bg-tertiary);
  padding: 6px 10px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.body-view-tabs {
  display: inline-flex;
  background: var(--bg-card);
  padding: 2px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
}

.body-view-btn {
  background: transparent;
  border: none;
  padding: 5px 13px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.2s ease;
}

.body-view-btn.active {
  background: var(--brand-red);
  color: #ffffff;
  box-shadow: 0 1px 3px rgba(239, 68, 68, 0.4);
}

.body-hint-tag {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* 人体双联 SVG 容器 (大幅提升尺寸与点击准确度) */
.muscle-views-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 18px;
  padding: 8px 0;
  min-height: 480px;
  transition: all 0.25s ease;
}

.muscle-view-card {
  flex: 1;
  max-width: 270px;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: all 0.25s ease;
}

.human-body-svg {
  width: 100%;
  height: auto;
  max-height: 520px;
  filter: drop-shadow(0 2px 5px rgba(0,0,0,0.08));
}

/* 单视角放大模式：正面大图 / 背面大图 */
.muscle-views-wrapper.mode-front .back-view-card,
.muscle-views-wrapper.mode-back .front-view-card {
  display: none !important;
}

.muscle-views-wrapper.mode-front .front-view-card,
.muscle-views-wrapper.mode-back .back-view-card {
  max-width: 480px;
  width: 100%;
}

.muscle-views-wrapper.mode-front .human-body-svg,
.muscle-views-wrapper.mode-back .human-body-svg {
  max-height: 660px;
}

.body-base-silhouette path,
.body-base-silhouette ellipse,
.cosmetic-part {
  fill: var(--muscle-silhouette);
  stroke: var(--muscle-stroke);
  stroke-width: 1.2px;
  opacity: 0.85;
  pointer-events: none;
}

.svg-label {
  font-size: 38px;
  fill: var(--text-secondary);
  font-weight: 700;
  letter-spacing: 2px;
  user-select: none;
}

/* 可交互肌肉路径 */
.muscle-group-item {
  cursor: pointer;
  outline: none;
}

.muscle-path {
  cursor: pointer;
  transition: fill 0.25s ease, stroke 0.25s ease, filter 0.25s ease;
  outline: none;
}

.muscle-group-item:hover .muscle-path {
  filter: brightness(1.28);
  stroke: #f87171 !important;
  stroke-width: 2.5px !important;
}

/* 锁定/选中的肌肉超强高亮轮廓 (防止鼠标移开时丢失) */
.muscle-group-item.active-pinned .muscle-path {
  stroke: #ffffff !important;
  stroke-width: 3.5px !important;
  filter: drop-shadow(0 0 10px #ef4444) brightness(1.28);
}

[data-theme="dark"] .muscle-group-item.active-pinned .muscle-path {
  stroke: #ffffff !important;
  stroke-width: 3.5px !important;
  filter: drop-shadow(0 0 12px #f87171) brightness(1.35);
}

.over-achieved-glow {
  filter: drop-shadow(0 0 5px #ef4444);
  stroke: #fca5a5 !important;
}

@keyframes pulse-red {
  0%, 100% {
    fill: #ef4444;
    filter: drop-shadow(0 0 2px #ef4444);
  }
  50% {
    fill: #f87171;
    filter: drop-shadow(0 0 8px #ef4444);
  }
}

.preview-primary-pulse {
  animation: pulse-red 1.2s infinite ease-in-out;
}

/* 热力图图例栏 */
.heatmap-legend-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px dashed var(--border-color);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.legend-gradient-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  max-width: 240px;
  margin: 0 10px;
}

.legend-bar-track {
  height: 8px;
  flex: 1;
  border-radius: var(--radius-full);
  background: linear-gradient(to right, var(--muscle-empty), #fca5a5, #ef4444, #991b1b);
}

/* 训练记录流水区 */
.workout-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.date-status-badge {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.date-status-badge .highlight-volume {
  color: var(--brand-red);
  font-weight: 700;
  margin-left: 4px;
}

.primary-add-btn {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: #ffffff;
  border: none;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.35);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.primary-add-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.45);
}

.primary-add-btn:active {
  transform: translateY(0);
}

/* 空状态卡片 */
.empty-workout-state {
  text-align: center;
  padding: 40px 16px;
  color: var(--text-muted);
}

.empty-workout-state .empty-icon {
  font-size: 3rem;
  margin-bottom: 12px;
  opacity: 0.8;
}

.empty-workout-state p {
  font-size: 0.95rem;
  margin-bottom: 16px;
}

/* 单条动作记录卡片 */
.exercise-record-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  margin-bottom: 12px;
  transition: all 0.2s ease;
}

.record-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 10px;
}

.record-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.record-muscle-tag {
  background: var(--brand-red-light);
  color: var(--brand-red);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.record-exercise-name {
  font-size: 1rem;
  font-weight: 700;
}

.record-actions {
  display: flex;
  gap: 6px;
}

.mini-icon-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  font-size: 0.9rem;
}

.mini-icon-btn:hover {
  color: var(--brand-red);
  background: var(--border-color);
}

/* 组数列表简表 */
.sets-pills-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.set-pill {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 500;
}

.record-footer-vol {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px dashed var(--border-color);
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
}

.vol-number {
  color: var(--brand-red);
  font-weight: 700;
}

/* iOS PWA 引导条 */
.ios-pwa-tip-banner {
  background: linear-gradient(90deg, #1e293b, #0f172a);
  color: #fff;
  border-radius: var(--radius-md);
  padding: 12px 16px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  box-shadow: var(--shadow-md);
  border: 1px solid #334155;
}

.ios-tip-text {
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.ios-share-icon {
  font-size: 1.1rem;
  color: #38bdf8;
}

.close-banner-btn {
  background: transparent;
  border: none;
  color: #94a3b8;
  font-size: 1.1rem;
  cursor: pointer;
}