:root{--bg: #ffffff;--fg: #e5e7eb;--muted: #94a3b8;--accent: #6366f1;--accent2: #0ea5e9 }html,body{height:100%}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";background:var(--bg);color:var(--fg)}button{font-family:inherit}.button-container{display:flex;justify-content:center;padding:16px}.button-container button{background:linear-gradient(90deg,var(--accent2),var(--accent));color:#fff;border:none;padding:12px 18px;border-radius:10px;cursor:pointer;font-weight:600}