/* ═══ GiáVàng.vn — Base Styles ═══ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
    :root{
      --bg:#07090f;--bg2:#0d1018;--bg3:#131724;--bg4:#1a2030;
      --border:rgba(255,255,255,0.07);--border2:rgba(255,255,255,0.12);
      --gold:#f5c518;--gold2:#ffd76e;
      --silver:#b0bec5;--silver2:#dde6ed;--silver3:#60d4f0;
      --text:#e4e8f2;--text2:#c4cad8;--muted:#6e778c;--muted2:#909ab2;
      --green:#22c97a;--red:#f55252;--blue:#4f7af8;--purple:#a78bfa;
      --radius:14px;--radius-sm:8px;
      --shadow:0 8px 40px rgba(0,0,0,0.55);
      --shadow-sm:0 4px 16px rgba(0,0,0,0.35);
    }
    html{scroll-behavior:smooth}
    body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased;overflow-x:hidden}