/* ========================================
   all.css — 合并后的单一CSS文件
   原 variables.css + base.css + layout.css + modal.css + animations.css + auth.css
   合并目的：减少渲染阻塞请求（6个→1个）
   ======================================== */


/* ════════════════════════════════════════
   ① variables.css — CSS变量中心
   ════════════════════════════════════════ */

:root {
  /* ---- 主题色 ---- */
  --color-primary: #4FC3F7;
  --color-accent: #FF6B35;
  --color-sakura: #FFB7C5;
  --color-purple: #BB86FC;
  --color-gold: #FFD700;

  /* ---- 背景 ---- */
  --bg-dark: #0a0a1a;
  --bg-card: #1a1a2e;
  --bg-card-hover: #222240;
  --bg-input: #16162b;
  --bg-secondary: #16213e;
  --bg-overlay: rgba(0, 0, 0, 0.75);

  /* ---- 文字 ---- */
  --text-primary: #e0e0e0;
  --text-secondary: #888;
  --text-muted: #555;
  --text-accent: var(--color-primary);

  /* ---- 进度条 ---- */
  --hp-high: #4CAF50;
  --hp-mid: #FF9800;
  --hp-low: #F44336;
  --mp-color: #4FC3F7;
  --exp-color: #BB86FC;

  /* ---- 成就品质 ---- */
  --tier-bronze: #CD7F32;
  --tier-silver: #C0C0C0;
  --tier-gold: #FFD700;
  --tier-legendary: #FF6B35;
  --tier-special: #BB86FC;

  /* ---- 尺寸 ---- */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;

  /* ---- 字体 ---- */
  --font-main: 'PingFang SC', 'HarmonyOS Sans SC', 'Noto Sans SC', 'Segoe UI', 'Microsoft YaHei', sans-serif;
  --font-pixel: 'Courier New', monospace;

  /* 字重 */
  --weight-regular: 400;
  --weight-medium: 500;

  /* 语义化字号 */
  --text-page-title: 18px;
  --text-section-title: 15px;
  --text-body: 13px;
  --text-small: 12px;
  --text-caption: 11px;
  --text-tiny: 10px;
  --text-micro: 9px;

  /* 原有字号（保留兼容） */
  --font-size-xs: 11px;
  --font-size-sm: 13px;
  --font-size-md: 15px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --font-size-xxl: 32px;

  /* ---- 状态色 ---- */
  --color-success: #66BB6A;
  --color-danger: #EF5350;
  --color-warning: #FFA726;

  /* ---- 按钮状态色 ---- */
  --color-primary-bg: rgba(79, 195, 247, 0.1);
  --color-primary-border: rgba(79, 195, 247, 0.2);
  --color-success-bg: rgba(76, 175, 80, 0.1);
  --color-success-border: rgba(76, 175, 80, 0.3);
  --color-warning-bg: rgba(255, 152, 0, 0.1);
  --color-warning-border: rgba(255, 152, 0, 0.2);
  --color-danger-bg: rgba(244, 67, 54, 0.1);
  --color-danger-border: rgba(244, 67, 54, 0.2);

  /* ---- 渐变 ---- */
  --gradient-y2k: linear-gradient(90deg, #FFB7C5, #BB86FC, #4FC3F7);
  --gradient-exp: linear-gradient(90deg, #FF6B35, #FFB7C5, #BB86FC, #4FC3F7);

  /* ---- 像素风边框 ---- */
  --pixel-border: 2px solid #4a4a6a;
  --pixel-border-light: 2px solid #7b7ba0;
  --pixel-shadow: 4px 4px 0px rgba(0, 0, 0, 0.3);

  /* ---- 动画 ---- */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
  --transition-bounce: 300ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* ---- 阴影 ---- */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(79, 195, 247, 0.3);

  /* ---- 布局 ---- */
  --nav-height: 60px;
  --header-height: 48px;
  --top-bar-height: 56px;
  --max-width: 480px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);

  /* ---- 第二轮补充变量 ---- */
  --text-sub: #ccc;
  --text-tertiary: #aaa;
  --text-done: #666;
  --text-faint: #444;

  --bg-modal: #1a1a2e;
  --bg-modal-gradient: linear-gradient(180deg, #1e1e38 0%, #1a1a2e 100%);
  --bg-subtle: rgba(255, 255, 255, 0.03);
  --bg-subtle-hover: rgba(255, 255, 255, 0.06);

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-card: rgba(255, 255, 255, 0.08);
  --border-input: rgba(255, 255, 255, 0.1);
  --border-medium: rgba(255, 255, 255, 0.2);

  --color-calendar: #a78bfa;
  --color-calendar-bg: rgba(167, 139, 250, 0.12);
  --color-calendar-border: rgba(167, 139, 250, 0.4);

  --color-success-text: #81C784;
  --color-streak: #FF9800;
  --color-badge: #FFD54F;
  --color-badge-bg: rgba(255, 215, 79, 0.12);

  --btn-primary-bg: linear-gradient(135deg, #4FC3F7 0%, #29B6F6 100%);
  --btn-primary-text: #0a0a1a;
  --btn-primary-solid: #4FC3F7;
}

/* ---- Light Theme ---- */
[data-theme="light"] {
  --color-primary: #e88d3f;
  --color-accent: #E05A2B;
  --color-sakura: #E8919F;
  --color-purple: #7B5EA7;
  --color-gold: #C8960C;

  --bg-dark: #F5EFE6;
  --bg-card: #FFFBF5;
  --bg-card-hover: #F0E8DA;
  --bg-input: #FFFBF5;
  --bg-secondary: #EDE6D8;
  --bg-overlay: rgba(0, 0, 0, 0.35);

  --text-primary: #2C2C2C;
  --text-secondary: #666666;
  --text-muted: #999999;
  --text-accent: var(--color-primary);

  --hp-high: #3D9140;
  --hp-mid: #E08600;
  --hp-low: #D93636;
  --mp-color: #e88d3f;
  --exp-color: #ffb347;

  --color-success: #4A9E4E;
  --color-danger: #D93636;
  --color-warning: #C87800;

  --color-primary-bg: rgba(232, 141, 63, 0.1);
  --color-primary-border: rgba(232, 141, 63, 0.2);
  --color-success-bg: rgba(74, 158, 78, 0.1);
  --color-success-border: rgba(74, 158, 78, 0.3);
  --color-warning-bg: rgba(200, 130, 0, 0.1);
  --color-warning-border: rgba(200, 130, 0, 0.2);
  --color-danger-bg: rgba(217, 54, 54, 0.1);
  --color-danger-border: rgba(217, 54, 54, 0.2);

  --gradient-y2k: linear-gradient(90deg, #E8919F, #ffb347, #e88d3f);
  --gradient-exp: linear-gradient(90deg, #e88d3f, #ffb347, #ffdc73, #fff4d4);

  --pixel-border: 2px solid #4A4A6A;
  --pixel-border-light: 2px solid #9090AA;
  --pixel-shadow: 3px 3px 0px rgba(0, 0, 0, 0.12);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.10);
  --shadow-glow: 0 0 16px rgba(232, 141, 63, 0.12);

  --text-sub: #555;
  --text-tertiary: #777;
  --text-done: #aaa;
  --text-faint: #bbb;

  --bg-modal: #FFFBF5;
  --bg-modal-gradient: linear-gradient(180deg, #FFFBF5 0%, #F5EFE6 100%);
  --bg-subtle: rgba(0, 0, 0, 0.02);
  --bg-subtle-hover: rgba(0, 0, 0, 0.04);

  --border-subtle: rgba(0, 0, 0, 0.06);
  --border-card: rgba(0, 0, 0, 0.08);
  --border-input: rgba(0, 0, 0, 0.12);
  --border-medium: rgba(0, 0, 0, 0.2);

  --color-calendar: #6D5BA8;
  --color-calendar-bg: rgba(109, 91, 168, 0.1);
  --color-calendar-border: rgba(109, 91, 168, 0.3);

  --color-success-text: #3D8B40;
  --color-streak: #E08600;
  --color-badge: #C89600;
  --color-badge-bg: rgba(200, 150, 0, 0.1);

  --tier-bronze: #fff4d4;
  --tier-silver: #ffeda4;
  --tier-gold: #ffdc73;
  --tier-legendary: #ffb347;
  --tier-special: #e88d3f;

  --btn-primary-bg: linear-gradient(135deg, #EDE6D8 0%, #E0D9CB 100%);
  --btn-primary-text: #4a3f2f;
  --btn-primary-solid: #EDE6D8;
}


/* ════════════════════════════════════════
   ② base.css — 基础样式重置 + 全局样式
   ════════════════════════════════════════ */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-main);
  font-size: var(--font-size-md);
  font-weight: 400;
  color: var(--text-primary);
  background: var(--bg-dark);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
  min-height: 100dvh;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  border: none;
  cursor: pointer;
  background: none;
  color: inherit;
}

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  outline: none;
  transition: border-color var(--transition-fast);
}

input:focus, select:focus, textarea:focus {
  border-color: var(--color-primary);
}

.btn-primary {
  background: var(--color-primary);
  color: var(--bg-dark);
  font-weight: 400;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.btn-primary:active {
  transform: scale(0.96);
  opacity: 0.9;
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.btn-secondary:active {
  background: rgba(79, 195, 247, 0.1);
}

.btn-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  font-size: var(--font-size-lg);
  transition: background var(--transition-fast);
}

.btn-icon:active {
  background: rgba(255, 255, 255, 0.1);
}

.btn-large {
  width: 100%;
  padding: var(--spacing-md);
  font-size: var(--font-size-lg);
}

.hidden { display: none !important; }
.empty-state {
  text-align: center;
  color: var(--text-muted);
  padding: var(--spacing-xl);
  font-size: var(--font-size-sm);
}
.text-warning { color: var(--hp-low); }
.text-muted { color: var(--text-muted); }

.page-title {
  font-size: var(--text-page-title);
  font-weight: var(--weight-regular);
  color: var(--text-primary);
  margin: 0;
}

.section-title {
  font-size: var(--text-section-title);
  font-weight: var(--weight-regular);
  color: var(--text-primary);
  margin: 0;
}

.body-text {
  font-size: var(--text-body);
  font-weight: var(--weight-regular);
  color: var(--text-primary);
  line-height: 1.5;
}

.caption-text {
  font-size: var(--text-caption);
  font-weight: var(--weight-regular);
  color: var(--text-secondary);
}

.empty-hint {
  text-align: center;
  color: var(--text-muted);
  font-size: var(--text-body);
  padding: var(--spacing-lg) var(--spacing-md);
}

.action-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid rgba(167, 139, 250, 0.3);
  background: rgba(167, 139, 250, 0.08);
  color: #a78bfa;
  border-radius: var(--radius-sm);
  font-size: var(--text-body);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.action-btn-primary:active {
  background: rgba(167, 139, 250, 0.2);
}

.action-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid rgba(76, 175, 80, 0.3);
  background: rgba(76, 175, 80, 0.08);
  color: #66BB6A;
  border-radius: var(--radius-sm);
  font-size: var(--text-body);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.action-btn-secondary:active {
  background: rgba(76, 175, 80, 0.2);
}

* {
  scrollbar-width: none;
  -ms-overflow-style: none;
}
*::-webkit-scrollbar {
  display: none;
}

[data-theme="light"] input,
[data-theme="light"] select,
[data-theme="light"] textarea {
  border: 1px solid rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .btn-icon:active {
  background: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .btn-secondary:active {
  background: rgba(232, 141, 63, 0.1);
}

[data-theme="light"] .action-btn-primary {
  border: 1px solid rgba(123, 94, 167, 0.3);
  background: rgba(123, 94, 167, 0.08);
  color: #6B4F96;
}
[data-theme="light"] .action-btn-primary:active {
  background: rgba(123, 94, 167, 0.18);
}

[data-theme="light"] .action-btn-secondary {
  border: 1px solid rgba(74, 158, 78, 0.3);
  background: rgba(74, 158, 78, 0.08);
  color: #3D8B40;
}
[data-theme="light"] .action-btn-secondary:active {
  background: rgba(74, 158, 78, 0.18);
}


/* ════════════════════════════════════════
   ③ layout.css — 布局系统
   ════════════════════════════════════════ */

#app {
  max-width: var(--max-width);
  margin: 0 auto;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  position: relative;
}

#page-container {
  flex: 1;
  overflow-y: auto;
  padding-bottom: calc(var(--nav-height) + var(--safe-bottom) + var(--spacing-md));
  transition: opacity var(--transition-fast);
}

.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: var(--max-width);
  height: calc(var(--nav-height) + var(--safe-bottom));
  padding-bottom: var(--safe-bottom);
  background: var(--bg-card);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-around;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: var(--spacing-xs) var(--spacing-sm);
  color: var(--text-muted);
  transition: color var(--transition-fast);
  flex: 1;
}

.nav-btn.active {
  color: var(--color-primary);
}

.nav-icon {
  font-size: 20px;
}

.nav-label {
  font-size: var(--font-size-xs);
}

.page {
  padding: var(--spacing-md);
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) 0 var(--spacing-md);
}

.page-header h1 {
  font-size: var(--font-size-xl);
  font-weight: 400;
}

.section-title {
  font-size: var(--font-size-md);
  font-weight: 400;
  margin: var(--spacing-lg) 0 var(--spacing-sm);
  color: var(--text-secondary);
}

.quest-tree {
  margin-bottom: var(--spacing-lg);
}

.quest-node {
  margin-left: var(--spacing-md);
  border-left: 2px solid rgba(255, 255, 255, 0.08);
  padding-left: var(--spacing-md);
}

.quest-node.quest-life {
  margin-left: 0;
  border-left: none;
  padding-left: 0;
}

.quest-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
  cursor: pointer;
}

.quest-name {
  flex: 1;
  font-weight: 400;
}

.quest-badge {
  font-size: var(--font-size-xs);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(79, 195, 247, 0.15);
  color: var(--color-primary);
}

.quest-life > .quest-header .quest-badge { background: rgba(255, 215, 0, 0.15); color: var(--color-gold); }
.quest-main > .quest-header .quest-badge { background: rgba(255, 107, 53, 0.15); color: var(--color-accent); }
.quest-side > .quest-header .quest-badge { background: rgba(187, 134, 252, 0.15); color: var(--color-purple); }

.habit-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.habit-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  transition: all var(--transition-fast);
}

.habit-card.checked {
  opacity: 0.6;
  background: rgba(76, 175, 80, 0.08);
}

.habit-main {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.habit-icon {
  font-size: 24px;
  width: 36px;
  text-align: center;
}

.habit-info {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.habit-name {
  font-weight: 400;
}

.habit-streak {
  font-size: var(--font-size-xs);
  color: var(--color-accent);
}

.habit-exp {
  font-size: var(--font-size-sm);
  color: var(--color-purple);
  font-family: var(--font-pixel);
}

.habit-actions {
  margin-top: var(--spacing-sm);
  display: flex;
  justify-content: flex-end;
}

.btn-checkin {
  background: var(--color-primary);
  color: var(--bg-dark);
  font-weight: 400;
  padding: var(--spacing-xs) var(--spacing-lg);
  border-radius: var(--radius-full);
  transition: all var(--transition-bounce);
}

.btn-checkin:active {
  transform: scale(0.92);
}

.btn-checked {
  background: rgba(76, 175, 80, 0.2);
  color: var(--hp-high);
  padding: var(--spacing-xs) var(--spacing-lg);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
}

.character-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.avatar-frame {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary), var(--color-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  position: relative;
}

.level-badge {
  position: absolute;
  bottom: -4px;
  right: -4px;
  background: var(--color-accent);
  color: white;
  font-size: var(--font-size-xs);
  font-weight: 400;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  font-family: var(--font-pixel);
}

.character-name { font-size: var(--font-size-lg); font-weight: 400; }
.character-title { color: var(--color-purple); font-size: var(--font-size-sm); }
.character-since { color: var(--text-muted); font-size: var(--font-size-xs); }

.vital-bars {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.progress-bar-wrapper {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.progress-label {
  font-size: var(--font-size-sm);
  width: 50px;
  text-align: left;
  flex-shrink: 0;
}

.progress-track {
  flex: 1;
  height: 12px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.progress-sm .progress-track { height: 8px; }
.progress-lg .progress-track { height: 16px; }

.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  position: relative;
  min-width: 2px;
}

.progress-fill.animated {
  transition: width var(--transition-slow);
}

.progress-numbers {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  font-family: var(--font-pixel);
  width: 60px;
  flex-shrink: 0;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.stat-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  text-align: center;
}

.stat-number {
  font-size: var(--font-size-xl);
  font-weight: 400;
  font-family: var(--font-pixel);
  color: var(--color-primary);
}

.stat-label {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
}

.habit-stat-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.habit-stat-details {
  display: flex;
  gap: var(--spacing-md);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  margin-left: auto;
}

.calendar-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-sm) 0;
}

.cal-month-label {
  font-size: var(--font-size-lg);
  font-weight: 400;
  min-width: 120px;
  text-align: center;
}

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  padding: var(--spacing-sm) 0;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  margin-bottom: var(--spacing-md);
}

.cal-day {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: background var(--transition-fast);
  position: relative;
}

.cal-day.empty { cursor: default; }
.cal-day.today { border: 1px solid var(--color-primary); }
.cal-day.selected { background: rgba(79, 195, 247, 0.2); }

.cal-day.heat-0 { background: transparent; }
.cal-day.heat-1 { background: rgba(79, 195, 247, 0.1); }
.cal-day.heat-2 { background: rgba(79, 195, 247, 0.25); }
.cal-day.heat-3 { background: rgba(79, 195, 247, 0.45); }

.day-dots {
  font-size: 8px;
  line-height: 1;
  color: var(--color-primary);
}

.day-detail {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
}

.detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-xs) 0;
  font-size: var(--font-size-sm);
}

.detail-time {
  color: var(--text-muted);
  font-family: var(--font-pixel);
}

.achievement-progress {
  margin-bottom: var(--spacing-lg);
}

.progress-text {
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
}

.tier-section {
  margin-bottom: var(--spacing-lg);
}

.tier-title {
  font-size: var(--font-size-md);
  font-weight: 400;
  margin-bottom: var(--spacing-sm);
}

.achievement-grid {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.achievement-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  transition: all var(--transition-fast);
}

.achievement-card.locked {
  opacity: 0.4;
}

.achievement-card.unlocked {
  border-left: 3px solid var(--tier-bronze);
}

.achievement-card[data-tier="silver"].unlocked { border-left-color: var(--tier-silver); }
.achievement-card[data-tier="gold"].unlocked { border-left-color: var(--tier-gold); }
.achievement-card[data-tier="legendary"].unlocked { border-left-color: var(--tier-legendary); }
.achievement-card[data-tier="special"].unlocked { border-left-color: var(--tier-special); }

.achievement-icon {
  font-size: 28px;
  width: 40px;
  text-align: center;
}

.achievement-name { font-weight: 400; }
.achievement-desc { font-size: var(--font-size-sm); color: var(--text-secondary); }
.achievement-date { font-size: var(--font-size-xs); color: var(--text-muted); margin-top: 2px; }

.settings-section {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.settings-section .section-title {
  margin: 0 0 var(--spacing-sm);
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.setting-row:last-child { border-bottom: none; }

.setting-input {
  width: 160px;
  text-align: right;
}

.setting-input-sm {
  width: 80px;
}

.setting-info {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-xs) 0;
  font-size: var(--font-size-sm);
}

.setting-warning {
  color: var(--hp-low);
  font-size: var(--font-size-sm);
  padding: var(--spacing-sm) 0;
}

.setting-buttons {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

.setting-buttons .btn-primary,
.setting-buttons .btn-secondary {
  flex: 1;
  text-align: center;
  cursor: pointer;
}

.toggle {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  cursor: pointer;
}

.toggle input { opacity: 0; width: 0; height: 0; }

.toggle-slider {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
}

.toggle-slider::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: white;
  top: 3px;
  left: 3px;
  transition: transform var(--transition-fast);
}

.toggle input:checked + .toggle-slider {
  background: var(--color-primary);
}

.toggle input:checked + .toggle-slider::after {
  transform: translateX(20px);
}

.timer-entry {
  margin-top: var(--spacing-lg);
}

[data-theme="light"] .bottom-nav {
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .quest-node {
  border-left: 2px solid rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .quest-badge {
  background: rgba(232, 141, 63, 0.12);
}
[data-theme="light"] .quest-life > .quest-header .quest-badge {
  background: rgba(200, 150, 12, 0.12);
}
[data-theme="light"] .quest-main > .quest-header .quest-badge {
  background: rgba(224, 90, 43, 0.12);
}
[data-theme="light"] .quest-side > .quest-header .quest-badge {
  background: rgba(123, 94, 167, 0.12);
}

[data-theme="light"] .progress-track {
  background: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .habit-stat-row {
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .cal-day.selected {
  background: rgba(232, 141, 63, 0.15);
}
[data-theme="light"] .cal-day.heat-1 { background: rgba(232, 141, 63, 0.08); }
[data-theme="light"] .cal-day.heat-2 { background: rgba(232, 141, 63, 0.18); }
[data-theme="light"] .cal-day.heat-3 { background: rgba(232, 141, 63, 0.30); }

[data-theme="light"] .setting-row {
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .toggle-slider {
  background: rgba(0, 0, 0, 0.15);
}


/* ════════════════════════════════════════
   ④ modal.css — 弹窗 + Toast样式
   ════════════════════════════════════════ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  transition: opacity var(--transition-normal);
  backdrop-filter: blur(8px);
}

.modal-overlay.hidden {
  pointer-events: none;
  opacity: 0;
}

.modal-overlay.visible {
  opacity: 1;
}

.modal-inner {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl) var(--spacing-lg);
  max-width: 360px;
  width: 90%;
  text-align: center;
  position: relative;
  overflow: hidden;
  transform: scale(0.8) translateY(20px);
  opacity: 0;
  transition: all var(--transition-bounce);
}

.modal-inner.modal-enter {
  transform: scale(1) translateY(0);
  opacity: 1;
}

.modal-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.modal-particles::before,
.modal-particles::after {
  content: '✨';
  position: absolute;
  font-size: 16px;
  animation: particle-float 2s ease-in-out infinite;
}

.modal-particles::before {
  top: 10%;
  left: 15%;
  animation-delay: 0s;
}

.modal-particles::after {
  top: 20%;
  right: 15%;
  animation-delay: 0.5s;
}

.modal-icon-large {
  font-size: 48px;
  margin-bottom: var(--spacing-md);
  animation: icon-bounce 0.6s var(--transition-bounce);
}

.modal-title {
  font-size: var(--font-size-xxl);
  font-weight: 400;
  margin-bottom: var(--spacing-sm);
  background: linear-gradient(135deg, var(--color-primary), var(--color-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.modal-habit-name {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.modal-stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.modal-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-value {
  font-size: var(--font-size-xl);
  font-weight: 400;
  font-family: var(--font-pixel);
  color: var(--color-primary);
}

.modal-stat.combo .stat-value {
  color: var(--color-accent);
}

.modal-achievement {
  border: 2px solid var(--tier-color, #FFD700);
  box-shadow: 0 0 30px var(--tier-glow, rgba(255, 215, 0, 0.3));
}

.modal-badge {
  position: relative;
  margin-bottom: var(--spacing-md);
}

.badge-glow {
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--tier-glow) 0%, transparent 70%);
  animation: badge-pulse 2s ease-in-out infinite;
}

.badge-icon {
  position: relative;
  font-size: 56px;
  z-index: 1;
}

.achievement-name {
  font-size: var(--font-size-lg);
  color: var(--color-gold);
  margin-bottom: var(--spacing-xs);
}

.achievement-tier {
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-sm);
}

.modal-levelup {
  border: 2px solid var(--color-accent);
  box-shadow: 0 0 40px rgba(255, 107, 53, 0.4);
}

.level-display {
  margin-bottom: var(--spacing-md);
}

.level-number {
  font-size: 48px;
  font-weight: 400;
  font-family: var(--font-pixel);
  color: var(--color-accent);
  display: block;
}

.level-title {
  font-size: var(--font-size-md);
  color: var(--color-purple);
}

.rewards-list {
  margin-bottom: var(--spacing-md);
}

.reward-item {
  padding: var(--spacing-xs) 0;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.modal-line {
  font-style: italic;
  color: var(--color-sakura);
  font-size: var(--font-size-sm);
  margin: var(--spacing-md) 0;
  min-height: 1em;
}

.modal-close-btn {
  background: var(--color-primary);
  color: var(--bg-dark);
  font-weight: 400;
  padding: var(--spacing-sm) var(--spacing-xl);
  border-radius: var(--radius-full);
  margin-top: var(--spacing-sm);
  transition: all var(--transition-fast);
}

.modal-close-btn:active {
  transform: scale(0.95);
}

.modal-overlay.modal-exit {
  opacity: 0;
}

.modal-overlay.modal-exit .modal-inner {
  transform: scale(0.8) translateY(20px);
  opacity: 0;
}

.toast-notification {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  background: var(--bg-card);
  border: 1px solid var(--border-input);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  z-index: 2000;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-bounce);
  max-width: 90%;
}

.toast-notification.toast-enter {
  transform: translateX(-50%) translateY(0);
}

.toast-notification.toast-exit {
  transform: translateX(-50%) translateY(-100px);
  opacity: 0;
}

.toast-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.toast-title {
  font-weight: 400;
  font-size: var(--font-size-sm);
}

.toast-message {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}


/* ════════════════════════════════════════
   ⑤ animations.css — 动画库
   ════════════════════════════════════════ */

@keyframes particle-float {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
    opacity: 0.6;
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
    opacity: 1;
  }
}

@keyframes icon-bounce {
  0% {
    transform: scale(0) rotate(-15deg);
    opacity: 0;
  }
  50% {
    transform: scale(1.2) rotate(5deg);
  }
  100% {
    transform: scale(1) rotate(0);
    opacity: 1;
  }
}

@keyframes badge-pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.3);
    opacity: 0.8;
  }
}

.progress-pulse {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  animation: hp-pulse 1s ease-in-out infinite;
}

@keyframes hp-pulse {
  0%, 100% {
    box-shadow: 0 0 4px var(--hp-low);
    opacity: 0.6;
  }
  50% {
    box-shadow: 0 0 12px var(--hp-low);
    opacity: 1;
  }
}

.habit-card {
  animation: card-in 0.3s ease-out;
}

@keyframes card-in {
  from {
    opacity: 0;
    transform: translateX(-10px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

#page-container {
  animation: page-fade 0.15s ease-out;
}

@keyframes page-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

.achievement-card.unlocked {
  animation: unlock-shine 1s ease-out;
}

@keyframes unlock-shine {
  0% {
    box-shadow: 0 0 0 transparent;
  }
  50% {
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
  }
  100% {
    box-shadow: none;
  }
}

.legendary_explosion::before,
.legendary_explosion::after {
  content: '🔥';
  animation: explode 1.5s ease-out infinite;
}

.legendary_explosion::before {
  top: 30%;
  left: 20%;
  animation-delay: 0.2s;
}

.legendary_explosion::after {
  bottom: 30%;
  right: 20%;
  animation-delay: 0.7s;
}

@keyframes explode {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  30% {
    transform: scale(1.5);
    opacity: 1;
  }
  100% {
    transform: scale(2) translateY(-30px);
    opacity: 0;
  }
}

.special_rainbow::before {
  content: '✨';
  animation: rainbow-spin 3s linear infinite;
}

@keyframes rainbow-spin {
  0% {
    filter: hue-rotate(0deg);
    transform: rotate(0deg);
  }
  100% {
    filter: hue-rotate(360deg);
    transform: rotate(360deg);
  }
}

.toast-notification {
  animation: none;
}

.cal-day:not(.empty):hover {
  background: rgba(232, 141, 63, 0.15) !important;
  transition: background var(--transition-fast);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .progress-fill.animated {
    transition: none;
  }
}


/* ════════════════════════════════════════
   ⑥ 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 var(--border-card);
  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 {
  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;
}