:root, [data-theme="dark"] {
  --bg: #0d0f12;
  --bg2: #151820;
  --bg3: #1c2030;
  --border: rgba(255, 255, 255, 0.07);
  --border2: rgba(255, 255, 255, 0.14);
  --text: #e8eaf0;
  --text2: #8892a4;
  --green: #22c55e;
  --gbg: rgba(34, 197, 94, .09);
  --red: #f43f5e;
  --rbg: rgba(244, 63, 94, .09);
  --blue: #60a5fa;
  --bbg: rgba(96, 165, 250, .09);
  --amber: #fbbf24;
  --abg: rgba(251, 191, 36, .09);
  --radius: 10px;
  --rsm: 6px;
  --mono: 'Courier New', monospace;
  --nav-bg: rgba(13, 15, 18, 0.95);
}

[data-theme="light"] {
  --bg: #f8fafc;
  --bg2: #ffffff;
  --bg3: #f1f5f9;
  --border: rgba(0, 0, 0, 0.08);
  --border2: rgba(0, 0, 0, 0.16);
  --text: #0f172a;
  --text2: #64748b;
  --green: #16a34a;
  --gbg: rgba(22, 163, 74, 0.1);
  --red: #e11d48;
  --rbg: rgba(225, 29, 72, 0.1);
  --blue: #2563eb;
  --bbg: rgba(37, 99, 235, 0.1);
  --amber: #d97706;
  --abg: rgba(217, 119, 6, 0.1);
  --radius: 10px;
  --rsm: 6px;
  --mono: 'Courier New', monospace;
  --nav-bg: rgba(255, 255, 255, 0.95);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border2) transparent;
}

/* Universal Custom Scrollbars for Webkit/Blink */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
  border-radius: 99px;
}
::-webkit-scrollbar-thumb {
  background: var(--border2);
  border-radius: 99px;
  transition: background 0.2s ease;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text2);
}
::-webkit-scrollbar-corner {
  background: transparent;
}

html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  line-height: 1.6;
  transition: background 0.25s ease, color 0.25s ease;
}
button, input, select, textarea { font-family: inherit; }

.theme-toggle-btn {
  background: transparent;
  border: 1px solid var(--border2);
  color: var(--text2);
  width: 30px;
  height: 30px;
  border-radius: var(--rsm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
  padding: 0;
}
.theme-toggle-btn:hover {
  color: var(--text);
  border-color: var(--blue);
  background: var(--bg3);
}