:root{--bg: #0f1115;--panel: #171a21;--border: #262b36;--text: #e8eaed;--muted: #8b93a3;--accent: #5b8cff;--accent-dark: #3f6fe0;--err: #ff6b6b}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.loading{display:flex;align-items:center;justify-content:center;height:100vh;color:var(--muted)}.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px}.auth-card{width:100%;max-width:380px;background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:32px;display:flex;flex-direction:column;gap:12px}.auth-card h1{margin:0 0 8px;font-size:1.3rem}.auth-card input{background:#0d0f14;border:1px solid var(--border);border-radius:8px;color:var(--text);padding:12px;font-size:.95rem}.auth-card button{background:var(--accent);color:#fff;border:none;padding:12px;border-radius:8px;font-weight:600;cursor:pointer}.auth-card button:hover{background:var(--accent-dark)}.auth-error{color:var(--err);font-size:.85rem;margin:0}.auth-switch{font-size:.85rem;color:var(--muted);margin:0}.auth-switch a{color:var(--accent)}.dashboard{max-width:640px;margin:0 auto;padding:24px}.dashboard header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.dashboard header button{background:transparent;border:1px solid var(--border);color:var(--text);padding:8px 14px;border-radius:8px;cursor:pointer}.add-form{display:flex;gap:8px;margin-bottom:16px}.add-form input{flex:1;background:#0d0f14;border:1px solid var(--border);border-radius:8px;color:var(--text);padding:10px}.add-form button{background:var(--accent);border:none;color:#fff;padding:10px 16px;border-radius:8px;cursor:pointer}.item-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:8px}.item-list li{display:flex;justify-content:space-between;align-items:center;background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:10px 14px}.item-list li.done span{text-decoration:line-through;color:var(--muted)}.item-list li span{cursor:pointer}.item-list li button{background:transparent;border:none;color:var(--err);cursor:pointer}