.app-layout{min-height:100vh;background:#f7f7f8;color:#1d1d1f;font:15px/1.5 system-ui,sans-serif}.app-header{display:flex;flex-wrap:wrap;align-items:center;gap:16px;justify-content:space-between;padding:12px 20px;border-bottom:1px solid #d6d6d9;background:#fff}.app-header div{display:flex;flex-direction:column}.app-header small{color:#666}.app-header nav{display:flex;flex-wrap:wrap;gap:16px}.app-header a,.app-main a{color:#184c87}.app-header a[aria-current=page]{font-weight:700}.app-main{max-width:1100px;margin:0 auto;padding:24px 16px}.app-training{padding:0}.app-centered{box-sizing:border-box;max-width:440px;min-height:100vh;margin:auto;padding:18vh 20px 30px;font:15px/1.5 system-ui,sans-serif}.app-signin{display:grid;gap:8px}.app-signin input{padding:9px;font:inherit}.app-signin button,.app-header button,.app-alert button{cursor:pointer}.app-alert{padding:10px 20px;background:#fff0e8;border-bottom:1px solid #c7724b}@media(max-width:640px){.app-header{align-items:flex-start}.app-main{padding:16px 8px}}