:root{--ink:#12152e;--ink-soft:#4a4e70;--surface:#ffffff;--surface-muted:#f5f6fc;--surface-elevated:rgba(255,255,255,0.78);--border:rgba(25,30,69,0.12);--primary:#6d43ec;--primary-2:#8d6dff;--blue:#2d8cff;--shadow:0 18px 55px rgba(31,35,80,0.11);--grid:rgba(92,73,184,0.08)}.dark{--ink:#f7f6ff;--ink-soft:#b9bad1;--surface:#0b0d21;--surface-muted:#11142c;--surface-elevated:rgba(20,23,51,0.78);--border:rgba(221,218,255,0.14);--primary:#9b82ff;--primary-2:#bbaaff;--blue:#67b3ff;--shadow:0 18px 55px rgba(0,0,0,0.28);--grid:rgba(155,130,255,0.11)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--surface);font-family:Arial,Noto Sans Thai,Sukhumvit Set,sans-serif;transition:background-color .18s ease,color .18s ease}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}::selection{background:#cfc1ff;color:#17112f}