/* Toggle button */
.theme-toggle {
  cursor: pointer;
  font-size: 1.3rem;
  opacity: 0.5;
  transition: opacity 0.2s, transform 0.2s;
  user-select: none;
  line-height: 1;
  padding: 0 4px;
}
.theme-toggle:hover {
  opacity: 1;
  transform: scale(1.15);
}

/* ====== Light Theme (warm, readable) ====== */

[data-theme="light"] body {
  background-color: #e8e2da;
  color: #2c2a27;
}

[data-theme="light"] .editor {
  background: #f2ede7;
  border-color: #c9c2b8;
  box-shadow: 0 8px 30px rgba(0,0,0,0.06);
}

[data-theme="light"] .titlebar {
  background: #d8d1c7;
  border-bottom-color: #c9c2b8;
}
[data-theme="light"] .titlebar-text { color: #7a756e; }

[data-theme="light"] .tabbar {
  background: #e3ddd5;
  border-bottom-color: #c9c2b8;
}
[data-theme="light"] .tab {
  color: #6e6962;
  border-right-color: #c9c2b8;
}
[data-theme="light"] .tab:hover { background: #d8d1c7; color: #2c2a27; }
[data-theme="light"] .tab.active { background: #f2ede7; color: #1e1c1a; }

[data-theme="light"] .line:hover { background: #e8e2da; }
[data-theme="light"] .ln { color: #9e9890; }

/* Syntax */
[data-theme="light"] .cm { color: #4e6d38; }
[data-theme="light"] .kw { color: #2a5fa0; }
[data-theme="light"] .str { color: #a04e2c; }
[data-theme="light"] .fn { color: #7a5c2e; }
[data-theme="light"] .type { color: #226878; }
[data-theme="light"] .num { color: #3a7a4e; }

/* Separators */
[data-theme="light"] .section-sep { border-top-color: #c9c2b8; }

/* Item borders */
[data-theme="light"] .paper-item,
[data-theme="light"] .pub-item,
[data-theme="light"] .exp-item {
  border-left-color: #c9c2b8;
}

/* Person page */
[data-theme="light"] a.link { color: #226878; }
[data-theme="light"] a.pdf-link { color: #226878; }
[data-theme="light"] .paper-title { color: #6a5028; }
[data-theme="light"] .paper-authors { color: #5e5a54; }
[data-theme="light"] .paper-authors .me { color: #7a3a7a; }
[data-theme="light"] .paper-venue { color: #2a5fa0; }
[data-theme="light"] .paper-award { color: #6a5028; }
[data-theme="light"] .legend-line { color: #4e6d38; }
[data-theme="light"] .tag-ccfa {
  background: rgba(42,95,160,0.12);
  color: #2a5fa0;
  border-color: rgba(42,95,160,0.3);
}
[data-theme="light"] .tag-big4 {
  background: rgba(106,80,40,0.12);
  color: #6a5028;
  border-color: rgba(106,80,40,0.3);
}
[data-theme="light"] .tag-oral {
  background: rgba(122,58,122,0.12);
  color: #7a3a7a;
  border-color: rgba(122,58,122,0.3);
}

/* Publication page */
[data-theme="light"] .pub-title { color: #6a5028; }
[data-theme="light"] .pub-venue { color: #2a5fa0; }
[data-theme="light"] .pub-award { color: #6a5028; }
[data-theme="light"] .pub-authors { color: #5e5a54; }
[data-theme="light"] .pub-authors .me { color: #7a3a7a; }
[data-theme="light"] .year-line { color: #2a5fa0; }

/* Experience page */
[data-theme="light"] .section-line { color: #2a5fa0; }
[data-theme="light"] .exp-role { color: #6a5028; }
[data-theme="light"] .exp-time { color: #4e6d38; }
[data-theme="light"] .exp-org { color: #226878; }