*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:#f4f4f1;color:#111;font-family:Georgia,'Times New Roman',serif}
main{max-width:1120px;margin:0 auto;padding:18px}
.topbar{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:14px}
h1{margin:0;letter-spacing:.22em;font-size:clamp(22px,4vw,42px);font-weight:500;line-height:1.15}
p{margin:6px 0 0}.buttons{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}
button{border:1px solid #111;background:#fff;padding:10px 14px;cursor:pointer;font-family:inherit;font-size:15px}
button:hover{background:#111;color:#fff}
#canvas-holder{width:100%;overflow:hidden;background:#fff;box-shadow:0 6px 26px rgba(0,0,0,.12)}
canvas{display:block;max-width:100%;height:auto;background:#fff;margin:0 auto}
.note{font-size:14px;opacity:.75}
@media(max-width:760px){main{padding:12px}.topbar{flex-direction:column;align-items:flex-start}.buttons{justify-content:flex-start}button{font-size:14px;padding:9px 12px}}

@media(max-width:760px){#canvas-holder{box-shadow:0 4px 16px rgba(0,0,0,.10)} h1{letter-spacing:.12em}}