.auth-shell{min-height:100vh; display:flex; align-items:center; justify-content:center; padding:20px;}
.auth-card{
  background:var(--paper-raised); border:1px solid var(--line); border-radius:var(--radius);
  padding:40px 36px; width:100%; max-width:380px; box-shadow:0 1px 3px rgba(28,35,33,0.08);
}
.auth-card h1{font-size:26px; margin-bottom:4px;}
.auth-card .sub{color:var(--ink-soft); font-size:13px; margin-bottom:24px;}
.switch-line{margin-top:18px; font-size:13px; color:var(--ink-soft); text-align:center;}
.switch-line button{background:none; border:none; color:var(--brass-dark); text-decoration:underline; cursor:pointer; font-size:13px; padding:0;}