:root{
  --bg-main:#f7f9fb;
  --card-bg:#ffffff;
  --primary:#2563eb;
  --text-main:#111827;
  --muted:#6b7280;
  --radius:12px;
}

*{
  box-sizing:border-box;
}

body{
  margin:0;
  font-family:"Segoe UI","Hiragino Kaku Gothic ProN",sans-serif;
  background:var(--bg-main);
  color:var(--text-main);
}

.menu-btn{
  position:fixed;
  top:16px;
  right:16px;
  width:44px;
  height:44px;
  border:none;
  background:rgba(255,255,255,0.85);
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  box-shadow:0 6px 20px rgba(17,24,39,0.12);
  cursor:pointer;
  z-index:1000;
}

.menu-btn:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
}

.menu-line{
  display:block;
  width:26px;
  height:4px;
  background:var(--text-main);
  border-radius:4px;
}

h1,h2{
  margin-bottom:12px;
}

input,select,textarea,button{
  font-size:1rem;
}

input,select,textarea{
  padding:8px;
}