*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:system-ui,sans-serif;font-size:1rem;line-height:1.5;color:#1a1a1a;background:#f5f5f5}#app{max-width:640px;margin:0 auto;padding:1.5rem 1rem}.auth-form{display:flex;flex-direction:column;gap:.75rem;max-width:360px;margin:4rem auto 0}.auth-form h1{margin:0 0 .5rem;font-size:1.5rem}header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.5rem}.note-form{display:flex;flex-direction:column;gap:.5rem;margin-bottom:1.5rem}.notes-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.75rem}.note-card{background:#fff;border-radius:6px;padding:.75rem 1rem;box-shadow:0 1px 3px #00000014}.note-card p{margin:0 0 .25rem;white-space:pre-wrap}.note-card time{font-size:.8rem;color:#888}input,textarea,button{font:inherit;width:100%;padding:.5rem .75rem;border:1px solid #ccc;border-radius:4px}textarea{min-height:80px;resize:vertical}button{background:#2563eb;color:#fff;border-color:transparent;cursor:pointer;width:auto}button:disabled{opacity:.6;cursor:default}.error{margin:0;color:#dc2626;font-size:.9rem;min-height:1.2em}