/* Material Design 3 - 完整设计令牌系统 */
:root {
  /* ========== 1. 色彩系统 ========== */
  /* 动态色彩 - 通过JS注入 */
  --m3-sys-primary: #6750A4;
  --m3-sys-on-primary: #FFFFFF;
  --m3-sys-primary-container: #EADDFF;
  --m3-sys-on-primary-container: #21005D;
  
  --m3-sys-secondary: #625B71;
  --m3-sys-on-secondary: #FFFFFF;
  --m3-sys-secondary-container: #E8DEF8;
  --m3-sys-on-secondary-container: #1D192B;
  
  --m3-sys-tertiary: #7D5260;
  --m3-sys-on-tertiary: #FFFFFF;
  --m3-sys-tertiary-container: #FFD8E4;
  --m3-sys-on-tertiary-container: #31111D;
  
  --m3-sys-error: #BA1A1A;
  --m3-sys-on-error: #FFFFFF;
  --m3-sys-error-container: #FFDAD6;
  --m3-sys-on-error-container: #410002;
  
  /* 表面色系 */
  --m3-sys-surface: #FFFBFE;
  --m3-sys-surface-dim: #DED8E1;
  --m3-sys-surface-bright: #FFFBFE;
  --m3-sys-surface-container-lowest: #FFFFFF;
  --m3-sys-surface-container-low: #F7F2FA;
  --m3-sys-surface-container: #F3EDF7;
  --m3-sys-surface-container-high: #ECE6F0;
  --m3-sys-surface-container-highest: #E6E0E9;
  
  --m3-sys-on-surface: #1C1B1F;
  --m3-sys-on-surface-variant: #49454F;
  --m3-sys-outline: #79747E;
  --m3-sys-outline-variant: #CAC4D0;
  
  /* 反转色 */
  --m3-sys-inverse-surface: #313033;
  --m3-sys-inverse-on-surface: #F4EFF4;
  --m3-sys-inverse-primary: #D0BCFF;
  
  /* 固定色 */
  --m3-fixed-dim: #141218;
  --m3-fixed-bright: #E6E0E9;
  
  /* ========== 2. 排版系统 ========== */
  --m3-typescale-family: 'Roboto', -apple-system, sans-serif;
  
  /* Display */
  --m3-typescale-display-large-size: 57px;
  --m3-typescale-display-large-line-height: 64px;
  --m3-typescale-display-large-weight: 400;
  --m3-typescale-display-large-tracking: -0.25px;
  
  --m3-typescale-display-medium-size: 45px;
  --m3-typescale-display-medium-line-height: 52px;
  --m3-typescale-display-medium-weight: 400;
  --m3-typescale-display-medium-tracking: 0;
  
  --m3-typescale-display-small-size: 36px;
  --m3-typescale-display-small-line-height: 44px;
  --m3-typescale-display-small-weight: 400;
  --m3-typescale-display-small-tracking: 0;
  
  /* Headline */
  --m3-typescale-headline-large-size: 32px;
  --m3-typescale-headline-large-line-height: 40px;
  --m3-typescale-headline-large-weight: 400;
  --m3-typescale-headline-large-tracking: 0;
  
  --m3-typescale-headline-medium-size: 28px;
  --m3-typescale-headline-medium-line-height: 36px;
  --m3-typescale-headline-medium-weight: 400;
  --m3-typescale-headline-medium-tracking: 0;
  
  --m3-typescale-headline-small-size: 24px;
  --m3-typescale-headline-small-line-height: 32px;
  --m3-typescale-headline-small-weight: 400;
  --m3-typescale-headline-small-tracking: 0;
  
  /* Title */
  --m3-typescale-title-large-size: 22px;
  --m3-typescale-title-large-line-height: 28px;
  --m3-typescale-title-large-weight: 400;
  --m3-typescale-title-large-tracking: 0;
  
  --m3-typescale-title-medium-size: 16px;
  --m3-typescale-title-medium-line-height: 24px;
  --m3-typescale-title-medium-weight: 500;
  --m3-typescale-title-medium-tracking: 0.15px;
  
  --m3-typescale-title-small-size: 14px;
  --m3-typescale-title-small-line-height: 20px;
  --m3-typescale-title-small-weight: 500;
  --m3-typescale-title-small-tracking: 0.1px;
  
  /* Body */
  --m3-typescale-body-large-size: 16px;
  --m3-typescale-body-large-line-height: 24px;
  --m3-typescale-body-large-weight: 400;
  --m3-typescale-body-large-tracking: 0.5px;
  
  --m3-typescale-body-medium-size: 14px;
  --m3-typescale-body-medium-line-height: 20px;
  --m3-typescale-body-medium-weight: 400;
  --m3-typescale-body-medium-tracking: 0.25px;
  
  --m3-typescale-body-small-size: 12px;
  --m3-typescale-body-small-line-height: 16px;
  --m3-typescale-body-small-weight: 400;
  --m3-typescale-body-small-tracking: 0.4px;
  
  /* Label */
  --m3-typescale-label-large-size: 14px;
  --m3-typescale-label-large-line-height: 20px;
  --m3-typescale-label-large-weight: 500;
  --m3-typescale-label-large-tracking: 0.1px;
  
  --m3-typescale-label-medium-size: 12px;
  --m3-typescale-label-medium-line-height: 16px;
  --m3-typescale-label-medium-weight: 500;
  --m3-typescale-label-medium-tracking: 0.5px;
  
  --m3-typescale-label-small-size: 11px;
  --m3-typescale-label-small-line-height: 16px;
  --m3-typescale-label-small-weight: 500;
  --m3-typescale-label-small-tracking: 0.5px;
  
  /* ========== 3. 形状系统 ========== */
  --m3-shape-corner-extra-small: 4px;
  --m3-shape-corner-small: 8px;
  --m3-shape-corner-medium: 12px;
  --m3-shape-corner-large: 16px;
  --m3-shape-corner-extra-large: 28px;
  --m3-shape-corner-full: 9999px;
  
  /* 组件特定形状 */
  --m3-shape-corner-button: var(--m3-shape-corner-full);
  --m3-shape-corner-card: var(--m3-shape-corner-medium);
  --m3-shape-corner-chip: var(--m3-shape-corner-full);
  --m3-shape-corner-fab-small: var(--m3-shape-corner-medium);
  --m3-shape-corner-fab-large: var(--m3-shape-corner-extra-large);
  
  /* ========== 4. 高度系统 ========== */
  --m3-elevation-0: none;
  --m3-elevation-1: 
    0px 1px 2px rgba(0, 0, 0, 0.3),
    0px 1px 3px 1px rgba(0, 0, 0, 0.15);
  --m3-elevation-2: 
    0px 2px 2px rgba(0, 0, 0, 0.3),
    0px 2px 6px 2px rgba(0, 0, 0, 0.15);
  --m3-elevation-3: 
    0px 4px 4px rgba(0, 0, 0, 0.3),
    0px 4px 8px 3px rgba(0, 0, 0, 0.15);
  --m3-elevation-4: 
    0px 6px 6px rgba(0, 0, 0, 0.3),
    0px 6px 10px 4px rgba(0, 0, 0, 0.15);
  --m3-elevation-5: 
    0px 8px 8px rgba(0, 0, 0, 0.3),
    0px 8px 12px 6px rgba(0, 0, 0, 0.15);
  
  /* ========== 5. 运动系统 ========== */
  --m3-motion-duration-short-1: 50ms;
  --m3-motion-duration-short-2: 100ms;
  --m3-motion-duration-medium-1: 150ms;
  --m3-motion-duration-medium-2: 200ms;
  --m3-motion-duration-medium-3: 250ms;
  --m3-motion-duration-medium-4: 300ms;
  --m3-motion-duration-long-1: 350ms;
  --m3-motion-duration-long-2: 400ms;
  --m3-motion-duration-long-3: 450ms;
  --m3-motion-duration-long-4: 500ms;
  --m3-motion-duration-extra-long-1: 550ms;
  --m3-motion-duration-extra-long-2: 600ms;
  
  --m3-motion-easing-standard: cubic-bezier(0.2, 0, 0, 1);
  --m3-motion-easing-standard-accelerate: cubic-bezier(0.3, 0, 1, 1);
  --m3-motion-easing-standard-decelerate: cubic-bezier(0, 0, 0, 1);
  --m3-motion-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --m3-motion-easing-emphasized-accelerate: cubic-bezier(0.3, 0, 0.8, 0.15);
  --m3-motion-easing-emphasized-decelerate: cubic-bezier(0.05, 0.7, 0.1, 1);
  
  /* ========== 6. 状态层 ========== */
  --m3-state-hover: 0.08;
  --m3-state-focus: 0.12;
  --m3-state-pressed: 0.12;
  --m3-state-dragged: 0.16;
  --m3-state-disabled: 0.38;
  --m3-state-disabled-container: 0.12;
  
  /* ========== 7. 组件尺寸 ========== */
  --m3-size-button-height-medium: 40px;
  --m3-size-button-height-small: 32px;
  --m3-size-fab-small: 40px;
  --m3-size-fab-medium: 56px;
  --m3-size-fab-large: 72px;
  --m3-size-chip-height: 32px;
  --m3-size-nav-bar-height: 80px;
  --m3-size-bottom-app-bar-height: 80px;
  --m3-size-nav-rail-width: 80px;
  --m3-size-nav-drawer-width: 360px;
}

/* 深色主题覆盖 */
[data-theme="dark"] {
  --m3-sys-primary: #D0BCFF;
  --m3-sys-on-primary: #381E72;
  --m3-sys-primary-container: #4F378B;
  --m3-sys-on-primary-container: #EADDFF;
  
  --m3-sys-secondary: #CCC2DC;
  --m3-sys-on-secondary: #332D41;
  --m3-sys-secondary-container: #4A4458;
  --m3-sys-on-secondary-container: #E8DEF8;
  
  --m3-sys-tertiary: #EFB8C8;
  --m3-sys-on-tertiary: #492532;
  --m3-sys-tertiary-container: #633B48;
  --m3-sys-on-tertiary-container: #FFD8E4;
  
  --m3-sys-error: #F2B8B5;
  --m3-sys-on-error: #601410;
  --m3-sys-error-container: #8C1D18;
  --m3-sys-on-error-container: #F9DEDC;
  
  --m3-sys-surface: #1C1B1F;
  --m3-sys-surface-dim: #141218;
  --m3-sys-surface-bright: #36343B;
  --m3-sys-surface-container-lowest: #0F0D13;
  --m3-sys-surface-container-low: #1D1B20;
  --m3-sys-surface-container: #211F26;
  --m3-sys-surface-container-high: #2B2930;
  --m3-sys-surface-container-highest: #36343B;
  
  --m3-sys-on-surface: #E6E0E9;
  --m3-sys-on-surface-variant: #CAC4D0;
  --m3-sys-outline: #938F99;
  --m3-sys-outline-variant: #49454F;
  
  --m3-sys-inverse-surface: #E6E0E9;
  --m3-sys-inverse-on-surface: #313033;
  --m3-sys-inverse-primary: #6750A4;
}