:root{
  --bg:#ffffff;
  --text:#111318;
  --dark:#2b2f36;
  --muted:#68707b;
  --border:#e9eef2;
  --brand:#05aeaf; /* extracted from logo */
  --radius:18px;
  --shadow:0 28px 60px rgba(0,0,0,.06);
  --maxw:1200px;
}
/* Dark theme overrides */
:root[data-theme='dark']{
  --bg:#0b0f14;
  --text:#eaf2ff;
  --dark:#eaf2ff;
  --muted:#9fb1c2;
  --border:rgba(255,255,255,.12);
  --shadow:0 30px 80px rgba(0,0,0,.45);
}