.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;background:#fff;padding:20px 30px;border-radius:15px;box-shadow:0 5px 15px #0000001a}.page-header h1{color:#333;font-size:2rem}.back-link{color:#667eea;text-decoration:none;font-weight:500;padding:10px 20px;border-radius:8px;transition:all .3s ease}.back-link:hover{background:#667eea;color:#fff}.loading{text-align:center;background:#fff;padding:40px;border-radius:15px;box-shadow:0 5px 15px #0000001a}.spinner{width:40px;height:40px;border:4px solid #f3f3f3;border-top:4px solid #667eea;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 20px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.todo-input{display:flex;gap:15px;margin-bottom:30px;background:#fff;padding:25px;border-radius:15px;box-shadow:0 5px 15px #0000001a}.task-input{flex:1;padding:15px 20px;border:2px solid #e0e0e0;border-radius:10px;font-size:1rem;transition:border-color .3s ease}.task-input:focus{outline:none;border-color:#667eea}.save-btn{padding:15px 30px;background:linear-gradient(135deg,#00b894,#00a085);color:#fff;border:none;border-radius:10px;font-weight:600;cursor:pointer;transition:all .3s ease}.save-btn:hover{transform:translateY(-2px);box-shadow:0 5px 15px #00b8944d}.todo-list{display:flex;flex-direction:column;gap:15px}.task-card{display:flex;justify-content:space-between;align-items:center;background:#fff;padding:20px 25px;border-radius:12px;box-shadow:0 3px 10px #0000001a;transition:transform .2s ease}.task-card:hover{transform:translate(5px)}.task-text{flex:1;font-size:1.1rem;color:#333}.delete-btn{padding:8px 16px;background:linear-gradient(135deg,#ff6b6b,#ee5a24);color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:.9rem;transition:all .3s ease}.delete-btn:hover{transform:scale(1.05);box-shadow:0 3px 10px #ff6b6b4d}.todo-page{max-width:600px;margin:0 auto}.search-section{display:flex;gap:15px;margin-bottom:30px;background:#fff;padding:25px;border-radius:15px;box-shadow:0 5px 15px #0000001a}.github-input{flex:1;padding:15px 20px;border:2px solid #e0e0e0;border-radius:10px;font-size:1rem;transition:border-color .3s ease}.github-input:focus{outline:none;border-color:#667eea}.search-btn{padding:15px 30px;background:linear-gradient(135deg,#74b9ff,#0984e3);color:#fff;border:none;border-radius:10px;font-weight:600;cursor:pointer;transition:all .3s ease}.search-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 5px 15px #74b9ff4d}.search-btn:disabled{opacity:.7;cursor:not-allowed}.results-section{min-height:200px}.error-message{background:#fff;padding:30px;border-radius:15px;box-shadow:0 5px 15px #0000001a;text-align:center}.error-message p{color:#e74c3c;font-size:1.1rem;font-weight:500}.default-message{background:#fff;padding:40px;border-radius:15px;box-shadow:0 5px 15px #0000001a;text-align:center}.default-message p{color:#666;font-size:1.2rem}.user-card{background:#fff;padding:30px;border-radius:20px;box-shadow:0 10px 30px #0000001a;text-align:center}.avatar{width:120px;height:120px;border-radius:50%;margin:0 auto 20px;display:block;border:4px solid #667eea}.user-info h2{color:#333;margin-bottom:15px;font-size:1.8rem}.bio{color:#666;margin-bottom:15px;font-style:italic;line-height:1.5}.location{color:#888;margin-bottom:25px}.stats{display:flex;justify-content:center;gap:40px;margin-bottom:25px}.stat{text-align:center}.stat strong{display:block;font-size:2rem;color:#333;margin-bottom:5px}.stat span{color:#666;font-size:.9rem;text-transform:uppercase;letter-spacing:1px}.profile-link{display:inline-block;padding:12px 25px;background:linear-gradient(135deg,#333,#555);color:#fff;text-decoration:none;border-radius:8px;font-weight:500;transition:all .3s ease}.profile-link:hover{transform:translateY(-2px);box-shadow:0 5px 15px #0003}.github-page{max-width:600px;margin:0 auto}.app{min-height:100vh}.home-page{text-align:center;background:#fff;border-radius:20px;padding:60px 40px;box-shadow:0 20px 40px #0000001a;margin-top:100px}.home-page h1{color:#333;margin-bottom:20px;font-size:2.5rem;font-weight:700}.home-page p{color:#666;margin-bottom:40px;font-size:1.2rem}.button-group{display:flex;gap:30px;justify-content:center;flex-wrap:wrap}.nav-button{padding:20px 40px;font-size:1.2rem;font-weight:600;border:none;border-radius:15px;cursor:pointer;transition:all .3s ease;text-transform:uppercase;letter-spacing:1px;min-width:180px}.todo-btn{background:linear-gradient(135deg,#ff6b6b,#ee5a24);color:#fff}.github-btn{background:linear-gradient(135deg,#74b9ff,#0984e3);color:#fff}.nav-button:hover{transform:translateY(-3px);box-shadow:0 10px 25px #0003}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh}.container{max-width:800px;margin:0 auto;padding:20px}