/* ========================================
   Base Styles — Design System v1.7
   Fonts, Variables, Reset
   ======================================== */

/* ─── Font Imports ─────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;700&display=swap');

@font-face {
  font-family: 'GenSenRounded';
  src: url('https://lab.helloruru.com/fonts/GenSenRounded-Regular.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: 'GenSenRounded';
  src: url('https://lab.helloruru.com/fonts/GenSenRounded-Medium.woff2') format('woff2');
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: 'GenSenRounded';
  src: url('https://lab.helloruru.com/fonts/GenSenRounded-Bold.woff2') format('woff2');
  font-weight: 700;
  font-display: swap;
}

/* ─── CSS Variables ────────────────────── */

:root {
  --color-primary: #D4A5A5;
  --color-secondary: #B8A9C9;
  --color-primary-light: #E8B4B8;
  --color-primary-dark: #C9929A;
  --color-secondary-light: #C4B7D7;
  --color-secondary-dark: #9B7E93;
  --color-success: #A8B5A0;
  --color-blush: #F5D0C5;
  --color-sakura: #FEDFE1;
  --color-fuji: #C4B7D7;

  --color-bg: #FAFAFA;
  --color-surface: #FFFFFF;
  --color-text: #333333;
  --color-text-body: #4A4A4A;
  --color-text-muted: #888888;
  --color-text-placeholder: #AAAAAA;
  --color-border: #E8E4E1;
  --color-border-disabled: #B5ADA7;

  --radius-lg: 32px;
  --radius-md: 16px;
  --radius-sm: 12px;

  --font-main: 'GenSenRounded', 'Noto Sans TC', sans-serif;
  --font-small: 'Noto Sans TC', sans-serif;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);

  --transition: 250ms ease;
}

/* ─── Dark Mode Variables ──────────────── */

[data-theme="dark"] {
  --color-bg: #1A1A1A;
  --color-surface: #2D2D2D;
  --color-text: #E8E8E8;
  --color-text-body: #D0D0D0;
  --color-text-muted: #A0A0A0;
  --color-text-placeholder: #808080;
  --color-border: #404040;
  --color-border-disabled: #606060;

  /* 品牌色在暗色模式下稍微調亮 */
  --color-primary: #E8B4B8;
  --color-secondary: #C4B7D7;
  --color-primary-light: #F2C9CD;
  --color-primary-dark: #D4A5A5;
  --color-secondary-light: #D9CDE8;
  --color-secondary-dark: #B8A9C9;

  /* 裝飾色調整 */
  --color-blush: #3D2F2F;
  --color-sakura: #3A2F3A;
  --color-fuji: #2F2F3A;
  --color-success: #4A5A4A;

  /* 陰影調整為更適合暗色背景 */
  --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);
}

/* ─── Reset ────────────────────────────── */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-weight: 500;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  min-height: 100dvh;
}