*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;background:linear-gradient(135deg,#f2f2f2,#e6e6e6)}.page{min-height:100vh;display:flex;align-items:center;justify-content:center}.card{width:520px;background:#fff;padding:30px;border-radius:10px;box-shadow:0 10px 25px #00000014}h1{text-align:center;margin-bottom:25px;font-weight:600}.input-group{display:flex;gap:10px;margin-bottom:25px}input{flex:1;padding:12px;border:1px solid #ccc;border-radius:6px;font-size:14px}button{padding:12px 16px;background:#000;color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:14px}button:disabled{opacity:.6;cursor:not-allowed}.history h2{margin-bottom:10px;font-size:18px}.empty{font-size:13px;color:#777}table{width:100%;border-collapse:collapse}th,td{border:1px solid #e0e0e0;padding:10px;font-size:13px}th{background:#f5f5f5;text-align:left}td.link{max-width:260px;word-break:break-all}.small-btn{padding:6px 10px;font-size:12px;background:#000;border-radius:4px}