:root{--bg: #f4f6f8;--fg: #1c2733;--accent: #1f3a5f;--line: #d9e0e7;--muted: #5b6773;--danger: #b3261e;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--fg);background:var(--bg)}*{box-sizing:border-box}body{margin:0;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}button,input,select{font:inherit}button{min-height:44px;padding:0 14px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--fg)}button.on,button.add,form button[type=submit]{background:var(--accent);border-color:var(--accent);color:#fff}button.danger{color:var(--danger);border-color:var(--danger)}button:disabled{opacity:.5}input,select{width:100%;min-height:44px;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:#fff}.app{max-width:640px;margin:0 auto;padding:12px}header{display:flex;justify-content:space-between;gap:8px;margin-bottom:12px}nav,.tools,.daybar,.row{display:flex;gap:8px}.daybar input{flex:1;min-width:0}.stack{display:grid;gap:8px;margin-bottom:12px}h1,h2{margin:12px 0}h2{font-size:1.1rem;text-transform:capitalize}.list{display:grid;gap:8px;margin:0 0 12px;padding:0;list-style:none}.list li{display:grid;gap:4px;padding:12px;border:1px solid var(--line);border-radius:10px;background:#fff}.list small,.empty{color:var(--muted)}.add{width:100%}.card{display:grid;gap:12px;padding:16px;border-radius:14px;background:#fff}.login{max-width:360px;margin:20vh auto 0}label{display:grid;gap:4px;font-size:.9rem}.error{margin:0;padding:10px 12px;border-radius:10px;background:#fdecea;color:var(--danger)}.center{margin-top:30vh;text-align:center}.modal{position:fixed;inset:0;display:grid;align-items:end;padding:12px;overflow-y:auto;background:#0006}.modal .card{width:100%;max-width:640px;margin:0 auto}.row button{flex:1}