/* Hearth 设计 token：HyperOS 4 柔光玻璃 + Miuix 双色 */
/* Hearth design tokens: HyperOS 4 soft-glass + Miuix dual-color scheme */
:root {
  --glass-bg: rgba(255, 255, 255, 0.4);          /* 浅色半透明白 / light translucent white */
  --glass-border: rgba(0, 0, 0, 0.06);
  --text: #1a1a1a;
  --text-dim: #8a8a90;
  --accent: #ff6900;
  /* 玻璃效果默认关闭：无模糊、无高光（普通半透明） */
  /* Glass effect off by default: no blur, no highlight (plain translucent) */
  --blur-filter: none;
  --glass-shadow: none;
}

/* 玻璃效果开启：磨砂模糊 + 边缘反射高光（液态玻璃，参考 Apple WWDC25） */
/* Glass effect on: frosted blur + edge-reflection highlight (liquid glass) */
:root[data-glass="on"] {
  --blur-filter: blur(20px) saturate(1.2) brightness(1.05) contrast(1.1);
  --glass-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18),
    inset 0 -1px 0 rgba(255, 255, 255, 0.04);
}

/* 系统深色：仅在未强制浅色时生效（跟随系统） */
/* System dark: only applies when not forced light (follow-system) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --glass-bg: rgba(21, 21, 24, 0.55);          /* 深色半透明 / dark translucent */
    --glass-border: rgba(255, 255, 255, 0.08);
    --text: #ffffff;
    --text-dim: #9a9aa0;
    --accent: #ff6900;
  }
}

/* 强制深色：无论系统主题 */
/* Forced dark: regardless of system theme */
:root[data-theme="dark"] {
  --glass-bg: rgba(21, 21, 24, 0.55);
  --glass-border: rgba(255, 255, 255, 0.08);
  --text: #ffffff;
  --text-dim: #9a9aa0;
  --accent: #ff6900;
}