:root{--primary-color: #2ea44f;--primary-hover: #2c974b;--bg-color: #f6f8fa;--text-main: #24292e;--text-secondary: #586069;--card-bg: #ffffff;--border-color: #d1d5da}body{margin:0;background-color:var(--bg-color);color:var(--text-main);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif}.container{max-width:500px;margin:80px auto;padding:20px;text-align:center}h1{font-weight:800;letter-spacing:-1px;margin-bottom:30px;font-size:2.5rem}form{display:flex;gap:10px;margin-bottom:15px}input{flex:1;padding:12px 16px;border:1px solid var(--border-color);border-radius:8px;font-size:16px;box-shadow:inset 0 1px 2px #1b1f2313;transition:all .2s ease}input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2ea44f33}button{background-color:var(--primary-color);color:#fff;border:1px solid rgba(27,31,35,.15);padding:0 20px;border-radius:8px;font-weight:600;cursor:pointer;transition:background-color .2s}button:hover{background-color:var(--primary-hover)}button:disabled{background-color:#94d3a2;cursor:not-allowed}.history-tag{display:inline-block;background:#eef1f4;padding:5px 12px;border-radius:20px;margin:5px;font-size:13px;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:.2s;border:1px solid transparent}.history-tag:hover{background:#fff;border-color:var(--primary-color);color:var(--primary-color);transform:translateY(-1px)}.profile-card{background:var(--card-bg);margin-top:40px;padding:40px 20px;border-radius:16px;border:1px solid var(--border-color);box-shadow:0 10px 25px #0000000d;animation:slideUp .4s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.avatar{width:120px;height:120px;border-radius:50%;border:4px solid #fff;box-shadow:0 4px 10px #0000001a;margin-bottom:20px}.profile-card h2{margin:0;font-size:1.5rem}.profile-card p{color:var(--text-secondary);line-height:1.5;margin:15px 0 25px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;border-top:1px solid #eee;padding-top:25px}.stat-item{display:flex;flex-direction:column;font-size:13px;color:var(--text-secondary)}.stat-item b{font-size:20px;color:var(--text-main)}.view-btn{display:inline-block;margin-top:30px;padding:10px 20px;border:1px solid var(--border-color);border-radius:6px;text-decoration:none;color:var(--text-main);font-weight:600;font-size:14px;transition:.2s}.view-btn:hover{background:#f6f8fa;border-color:#959da5}@media(max-width:480px){.container{margin:20px auto;padding:15px}h1{font-size:1.8rem}form{flex-direction:column}input{width:100%;box-sizing:border-box}button{padding:12px;width:100%}.stats{grid-template-columns:1fr;gap:20px}.profile-card{padding:20px 10px}}