:root{--bg:#f6f7fb;--card:#fff;--text:#1c2333;--muted:#6b7280;--accent:#2563eb;--danger:#dc2626}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}.center{display:flex;justify-content:center;padding:4rem}.muted{color:var(--muted)}.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1rem}.card{background:var(--card);border-radius:12px;box-shadow:0 4px 24px #00000014;padding:2rem;width:100%;max-width:380px;display:flex;flex-direction:column;gap:.5rem}.card h1{margin:0 0 .5rem;font-size:1.4rem}label{font-size:.85rem;color:var(--muted)}input{padding:.6rem .8rem;border:1px solid #d1d5db;border-radius:8px;font-size:1rem}input:focus{outline:2px solid var(--accent);border-color:transparent}button{margin-top:.5rem;padding:.65rem 1rem;border:0;border-radius:8px;background:var(--accent);color:#fff;font-size:1rem;cursor:pointer}button:disabled{opacity:.6;cursor:default}button.ghost{background:transparent;color:var(--muted);margin:0;padding:.3rem .6rem}button.ghost:hover{color:var(--danger)}.error{background:#fef2f2;color:var(--danger);border-radius:8px;padding:.5rem .8rem;font-size:.9rem}.page{max-width:640px;margin:0 auto;padding:1.5rem}.page header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.5rem}.page h1{font-size:1.3rem;margin:0}.row{display:flex;gap:.5rem}.row input{flex:1}.row button{margin:0}.items{list-style:none;padding:0;margin:1rem 0;display:flex;flex-direction:column;gap:.5rem}.items li{background:var(--card);border-radius:10px;padding:.7rem 1rem;display:flex;align-items:center;justify-content:space-between;box-shadow:0 1px 4px #0000000d}.items li label{display:flex;align-items:center;gap:.6rem;color:var(--text);font-size:1rem}.items li.done span{text-decoration:line-through;color:var(--muted)}