/**
 * Personal Agent OS - Unified Design System & Tokens
 * 所有部门研发微应用可直接引用: <link rel="stylesheet" href="/hub/design-system.css">
 */

:root {
  color-scheme: dark;
  --bg-main: #0d111d;
  --bg-panel: rgba(22, 30, 49, 0.85);

  /* 背景与表面层级 */
  --os-bg-base: #07090e;
  --os-bg-surface: #0d111d;
  --os-bg-card: rgba(22, 30, 49, 0.7);
  --os-bg-card-hover: rgba(30, 41, 67, 0.85);
  
  /* 边框与线 */
  --os-border: rgba(255, 255, 255, 0.08);
  --os-border-light: rgba(255, 255, 255, 0.15);
  --os-border-accent: rgba(99, 102, 241, 0.4);

  /* 文字 */
  --os-text-main: #f1f5f9;
  --os-text-muted: #94a3b8;
  --os-text-faint: #64748b;

  /* 主题色系 */
  --os-primary: #6366f1;
  --os-primary-glow: rgba(99, 102, 241, 0.35);
  --os-info: #3b82f6;
  --os-success: #10b981;
  --os-warning: #f59e0b;
  --os-rose: #ec4899;
  --os-purple: #a855f7;

  /* 字体族 */
  --os-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --os-font-mono: "JetBrains Mono", Consolas, Monaco, "Courier New", monospace;

  /* 圆角与阴影 */
  --os-radius-sm: 6px;
  --os-radius-md: 10px;
  --os-radius-lg: 16px;
  --os-radius-full: 9999px;
  --os-shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
  --os-shadow-glow: 0 0 16px var(--os-primary-glow);
}

/* 全局滚动条美化 */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border-radius: 999px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* 常用通用卡片样式 */
.os-card {
  background: var(--os-bg-card);
  border: 1px solid var(--os-border);
  border-radius: var(--os-radius-md);
  padding: 16px;
  backdrop-filter: blur(12px);
  transition: all 0.2s ease;
}
.os-card:hover {
  border-color: var(--os-border-accent);
  transform: translateY(-2px);
}

/* 常用通用按钮样式 */
.os-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--os-radius-sm);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid var(--os-border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--os-text-main);
  transition: all 0.15s ease;
  user-select: none;
  box-sizing: border-box;
  max-width: 100%;
}
.os-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--os-border-light);
}
.os-btn-primary {
  background: var(--os-primary);
  border-color: var(--os-primary);
  color: white;
  box-shadow: var(--os-shadow-glow);
  box-sizing: border-box;
  max-width: 100%;
}
.os-btn-primary:hover {
  background: #4f46e5;
  border-color: #4f46e5;
}

/* 常用通用徽章 */
.os-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--os-radius-full);
  font-size: 11px;
  font-weight: 500;
  border: 1px solid transparent;
}
.os-badge-primary {
  background: rgba(99, 102, 241, 0.15);
  color: #a5b4fc;
  border-color: rgba(99, 102, 241, 0.3);
}
.os-badge-success {
  background: rgba(16, 185, 129, 0.15);
  color: #6ee7b7;
  border-color: rgba(16, 185, 129, 0.3);
}
.os-badge-warning {
  background: rgba(245, 158, 11, 0.15);
  color: #fcd34d;
  border-color: rgba(245, 158, 11, 0.3);
}

/* =========================================================
   📱 移动端排版基线 (<= 768px)
   按钮 / 徽章标签尽量单行显示，消除文字挤压折行
   ========================================================= */
@media (max-width: 768px) {
  .os-btn {
    white-space: nowrap;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .os-btn-primary {
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .os-badge {
    white-space: nowrap;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .os-card {
    padding: 12px;
  }
}

/* =========================================================
   🌐 全局所有下拉选择框 (Select & Option) 统一暗黑高对比度规范
   彻底解决 Windows / WebKit 原生下拉白底、文字浅看不清的通病
   ========================================================= */
select, option, optgroup {
  color-scheme: dark !important;
}

select {
  background-color: #151b2b;
  color: #f8fafc !important;
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-family: inherit;
  box-sizing: border-box;
  max-width: 100%;
}

select:focus {
  outline: none;
  border-color: var(--os-primary, #6366f1) !important;
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.25);
}

option, optgroup {
  background-color: #111827 !important;
  color: #f8fafc !important;
  font-weight: 500;
  padding: 8px 10px;
}

optgroup {
  color: #94a3b8 !important;
  font-weight: 700;
  background-color: #0f172a !important;
}

option:checked, option:hover {
  background-color: #4f46e5 !important;
  color: #ffffff !important;
}